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758
A
Holiday Of Equality
PROGRAMMING
800
[ "implementation", "math" ]
null
null
In Berland it is the holiday of equality. In honor of the holiday the king decided to equalize the welfare of all citizens in Berland by the expense of the state treasury. Totally in Berland there are *n* citizens, the welfare of each of them is estimated as the integer in *a**i* burles (burle is the currency in Berland). You are the royal treasurer, which needs to count the minimum charges of the kingdom on the king's present. The king can only give money, he hasn't a power to take away them.
The first line contains the integer *n* (1<=≤<=*n*<=≤<=100) — the number of citizens in the kingdom. The second line contains *n* integers *a*1,<=*a*2,<=...,<=*a**n*, where *a**i* (0<=≤<=*a**i*<=≤<=106) — the welfare of the *i*-th citizen.
In the only line print the integer *S* — the minimum number of burles which are had to spend.
[ "5\n0 1 2 3 4\n", "5\n1 1 0 1 1\n", "3\n1 3 1\n", "1\n12\n" ]
[ "10", "1", "4", "0" ]
In the first example if we add to the first citizen 4 burles, to the second 3, to the third 2 and to the fourth 1, then the welfare of all citizens will equal 4. In the second example it is enough to give one burle to the third citizen. In the third example it is necessary to give two burles to the first and the third citizens to make the welfare of citizens equal 3. In the fourth example it is possible to give nothing to everyone because all citizens have 12 burles.
500
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1,688,377,481
2,147,483,647
Python 3
OK
TESTS
41
46
0
# https://codeforces.com/problemset/problem/758/A citizens = int(input()) burles_per_citizen = list(map(int, input().split())) richest_citizen_brules = max(burles_per_citizen) burles_required = (richest_citizen_brules * citizens) - sum(burles_per_citizen) print(burles_required)
Title: Holiday Of Equality Time Limit: None seconds Memory Limit: None megabytes Problem Description: In Berland it is the holiday of equality. In honor of the holiday the king decided to equalize the welfare of all citizens in Berland by the expense of the state treasury. Totally in Berland there are *n* citizens, the welfare of each of them is estimated as the integer in *a**i* burles (burle is the currency in Berland). You are the royal treasurer, which needs to count the minimum charges of the kingdom on the king's present. The king can only give money, he hasn't a power to take away them. Input Specification: The first line contains the integer *n* (1<=≤<=*n*<=≤<=100) — the number of citizens in the kingdom. The second line contains *n* integers *a*1,<=*a*2,<=...,<=*a**n*, where *a**i* (0<=≤<=*a**i*<=≤<=106) — the welfare of the *i*-th citizen. Output Specification: In the only line print the integer *S* — the minimum number of burles which are had to spend. Demo Input: ['5\n0 1 2 3 4\n', '5\n1 1 0 1 1\n', '3\n1 3 1\n', '1\n12\n'] Demo Output: ['10', '1', '4', '0'] Note: In the first example if we add to the first citizen 4 burles, to the second 3, to the third 2 and to the fourth 1, then the welfare of all citizens will equal 4. In the second example it is enough to give one burle to the third citizen. In the third example it is necessary to give two burles to the first and the third citizens to make the welfare of citizens equal 3. In the fourth example it is possible to give nothing to everyone because all citizens have 12 burles.
```python # https://codeforces.com/problemset/problem/758/A citizens = int(input()) burles_per_citizen = list(map(int, input().split())) richest_citizen_brules = max(burles_per_citizen) burles_required = (richest_citizen_brules * citizens) - sum(burles_per_citizen) print(burles_required) ```
3
841
A
Generous Kefa
PROGRAMMING
900
[ "brute force", "implementation" ]
null
null
One day Kefa found *n* baloons. For convenience, we denote color of *i*-th baloon as *s**i* — lowercase letter of the Latin alphabet. Also Kefa has *k* friends. Friend will be upset, If he get two baloons of the same color. Kefa want to give out all baloons to his friends. Help Kefa to find out, can he give out all his baloons, such that no one of his friens will be upset — print «YES», if he can, and «NO», otherwise. Note, that Kefa's friend will not upset, if he doesn't get baloons at all.
The first line contains two integers *n* and *k* (1<=≤<=*n*,<=*k*<=≤<=100) — the number of baloons and friends. Next line contains string *s* — colors of baloons.
Answer to the task — «YES» or «NO» in a single line. You can choose the case (lower or upper) for each letter arbitrary.
[ "4 2\naabb\n", "6 3\naacaab\n" ]
[ "YES\n", "NO\n" ]
In the first sample Kefa can give 1-st and 3-rd baloon to the first friend, and 2-nd and 4-th to the second. In the second sample Kefa needs to give to all his friends baloons of color a, but one baloon will stay, thats why answer is «NO».
500
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"YES" }, { "input": "5 3\nazzzz", "output": "NO" }, { "input": "4 100\naabb", "output": "YES" }, { "input": "3 10\naaa", "output": "YES" }, { "input": "3 4\naaa", "output": "YES" }, { "input": "12 5\naaaaabbbbbbb", "output": "NO" }, { "input": "5 2\naabbb", "output": "NO" }, { "input": "10 5\nzzzzzzzzzz", "output": "NO" }, { "input": "2 4\naa", "output": "YES" }, { "input": "1 5\na", "output": "YES" }, { "input": "10 5\naaaaaaaaaa", "output": "NO" }, { "input": "6 3\naaaaaa", "output": "NO" }, { "input": "7 1\nabcdeee", "output": "NO" }, { "input": "18 3\naaaaaabbbbbbcccccc", "output": "NO" }, { "input": "8 2\naabbccdd", "output": "YES" }, { "input": "4 2\nzzzz", "output": "NO" }, { "input": "4 2\nabaa", "output": "NO" }, { "input": "3 2\naaa", "output": "NO" }, { "input": "3 1\nzzz", "output": "NO" }, { "input": "5 4\nzzzzz", "output": "NO" }, { "input": "6 2\naabbbc", "output": "NO" }, { "input": "3 6\naaa", "output": "YES" }, { "input": "2 1\nzz", "output": "NO" }, { "input": "10 3\naaaeeeeeee", "output": "NO" }, { "input": "4 5\naabb", "output": "YES" }, { "input": "3 1\naaa", "output": "NO" }, { "input": "5 2\naazzz", "output": "NO" }, { "input": "6 2\nabbbbc", "output": "NO" }, { "input": "4 2\nxxxx", "output": "NO" }, { "input": "6 3\nzzzzzz", "output": "NO" }, { "input": "3 2\nabb", "output": "YES" }, { "input": "3 2\nzzz", "output": "NO" }, { "input": "6 5\nzzzzzz", "output": "NO" }, { "input": "6 3\nbcaaaa", "output": "NO" }, { "input": "100 100\naaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "output": "YES" }, { "input": "3 6\nabc", "output": "YES" } ]
1,651,129,279
2,147,483,647
Python 3
OK
TESTS
114
46
0
n, k = map(int, input().split()) s = input() d = {} count = 0 for i in s: if i in d: d[i] += 1 else: d[i] = 1 for j in d: if d[j]>k: count+=1 if count>0: print('NO') else: print('YES')
Title: Generous Kefa Time Limit: None seconds Memory Limit: None megabytes Problem Description: One day Kefa found *n* baloons. For convenience, we denote color of *i*-th baloon as *s**i* — lowercase letter of the Latin alphabet. Also Kefa has *k* friends. Friend will be upset, If he get two baloons of the same color. Kefa want to give out all baloons to his friends. Help Kefa to find out, can he give out all his baloons, such that no one of his friens will be upset — print «YES», if he can, and «NO», otherwise. Note, that Kefa's friend will not upset, if he doesn't get baloons at all. Input Specification: The first line contains two integers *n* and *k* (1<=≤<=*n*,<=*k*<=≤<=100) — the number of baloons and friends. Next line contains string *s* — colors of baloons. Output Specification: Answer to the task — «YES» or «NO» in a single line. You can choose the case (lower or upper) for each letter arbitrary. Demo Input: ['4 2\naabb\n', '6 3\naacaab\n'] Demo Output: ['YES\n', 'NO\n'] Note: In the first sample Kefa can give 1-st and 3-rd baloon to the first friend, and 2-nd and 4-th to the second. In the second sample Kefa needs to give to all his friends baloons of color a, but one baloon will stay, thats why answer is «NO».
```python n, k = map(int, input().split()) s = input() d = {} count = 0 for i in s: if i in d: d[i] += 1 else: d[i] = 1 for j in d: if d[j]>k: count+=1 if count>0: print('NO') else: print('YES') ```
3
501
A
Contest
PROGRAMMING
900
[ "implementation" ]
null
null
Misha and Vasya participated in a Codeforces contest. Unfortunately, each of them solved only one problem, though successfully submitted it at the first attempt. Misha solved the problem that costs *a* points and Vasya solved the problem that costs *b* points. Besides, Misha submitted the problem *c* minutes after the contest started and Vasya submitted the problem *d* minutes after the contest started. As you know, on Codeforces the cost of a problem reduces as a round continues. That is, if you submit a problem that costs *p* points *t* minutes after the contest started, you get points. Misha and Vasya are having an argument trying to find out who got more points. Help them to find out the truth.
The first line contains four integers *a*, *b*, *c*, *d* (250<=≤<=*a*,<=*b*<=≤<=3500, 0<=≤<=*c*,<=*d*<=≤<=180). It is guaranteed that numbers *a* and *b* are divisible by 250 (just like on any real Codeforces round).
Output on a single line: "Misha" (without the quotes), if Misha got more points than Vasya. "Vasya" (without the quotes), if Vasya got more points than Misha. "Tie" (without the quotes), if both of them got the same number of points.
[ "500 1000 20 30\n", "1000 1000 1 1\n", "1500 1000 176 177\n" ]
[ "Vasya\n", "Tie\n", "Misha\n" ]
none
500
[ { "input": "500 1000 20 30", "output": "Vasya" }, { "input": "1000 1000 1 1", "output": "Tie" }, { "input": "1500 1000 176 177", "output": "Misha" }, { "input": "1500 1000 74 177", "output": "Misha" }, { "input": "750 2500 175 178", "output": "Vasya" }, { "input": "750 1000 54 103", "output": "Tie" }, { "input": "2000 1250 176 130", "output": "Tie" }, { "input": "1250 1750 145 179", "output": "Tie" }, { "input": "2000 2000 176 179", "output": "Tie" }, { "input": "1500 1500 148 148", "output": "Tie" }, { "input": "2750 1750 134 147", "output": "Misha" }, { "input": "3250 250 175 173", "output": "Misha" }, { "input": "500 500 170 176", "output": "Misha" }, { "input": "250 1000 179 178", "output": "Vasya" }, { "input": "3250 1000 160 138", "output": "Misha" }, { "input": "3000 2000 162 118", "output": "Tie" }, { "input": "1500 1250 180 160", "output": "Tie" }, { "input": "1250 2500 100 176", "output": "Tie" }, { "input": "3500 3500 177 178", "output": "Tie" }, { "input": "3000 3250 16 34", "output": "Tie" }, { "input": "1750 3000 137 49", "output": "Vasya" }, { "input": "500 1500 179 71", "output": "Vasya" }, { "input": "1250 2000 101 180", "output": "Misha" }, { "input": "250 750 180 176", "output": "Vasya" }, { "input": "2250 2250 163 145", "output": "Vasya" }, { "input": "3000 3000 176 78", "output": "Vasya" }, { "input": "250 3500 8 178", "output": "Vasya" }, { "input": "1750 1250 179 180", "output": "Misha" }, { "input": "2750 1750 13 164", "output": "Misha" }, { "input": "1750 2250 178 53", "output": "Vasya" }, { "input": "2500 2750 73 179", "output": "Misha" }, { "input": "1000 3500 178 175", "output": "Vasya" }, { "input": "1000 500 7 162", "output": "Misha" }, { "input": "1000 250 175 48", "output": "Misha" }, { "input": "1750 500 166 177", "output": "Misha" }, { "input": "250 250 0 0", "output": "Tie" }, { "input": "250 3500 0 0", "output": "Vasya" }, { "input": "250 3500 0 180", "output": "Vasya" }, { "input": "3500 3500 180 180", "output": "Tie" }, { "input": "3500 250 0 180", "output": "Misha" } ]
1,563,454,439
2,147,483,647
Python 3
OK
TESTS
40
124
0
a,b,c,d=map(int,input().split()) x=max((3*a//10),(a-(a//250*c))) y=max((3*b//10),(b-((b//250)*d))) # print(x,y) if y>x: print('Vasya') elif x>y: print('Misha') else: print('Tie')
Title: Contest Time Limit: None seconds Memory Limit: None megabytes Problem Description: Misha and Vasya participated in a Codeforces contest. Unfortunately, each of them solved only one problem, though successfully submitted it at the first attempt. Misha solved the problem that costs *a* points and Vasya solved the problem that costs *b* points. Besides, Misha submitted the problem *c* minutes after the contest started and Vasya submitted the problem *d* minutes after the contest started. As you know, on Codeforces the cost of a problem reduces as a round continues. That is, if you submit a problem that costs *p* points *t* minutes after the contest started, you get points. Misha and Vasya are having an argument trying to find out who got more points. Help them to find out the truth. Input Specification: The first line contains four integers *a*, *b*, *c*, *d* (250<=≤<=*a*,<=*b*<=≤<=3500, 0<=≤<=*c*,<=*d*<=≤<=180). It is guaranteed that numbers *a* and *b* are divisible by 250 (just like on any real Codeforces round). Output Specification: Output on a single line: "Misha" (without the quotes), if Misha got more points than Vasya. "Vasya" (without the quotes), if Vasya got more points than Misha. "Tie" (without the quotes), if both of them got the same number of points. Demo Input: ['500 1000 20 30\n', '1000 1000 1 1\n', '1500 1000 176 177\n'] Demo Output: ['Vasya\n', 'Tie\n', 'Misha\n'] Note: none
```python a,b,c,d=map(int,input().split()) x=max((3*a//10),(a-(a//250*c))) y=max((3*b//10),(b-((b//250)*d))) # print(x,y) if y>x: print('Vasya') elif x>y: print('Misha') else: print('Tie') ```
3
275
A
Lights Out
PROGRAMMING
900
[ "implementation" ]
null
null
Lenny is playing a game on a 3<=×<=3 grid of lights. In the beginning of the game all lights are switched on. Pressing any of the lights will toggle it and all side-adjacent lights. The goal of the game is to switch all the lights off. We consider the toggling as follows: if the light was switched on then it will be switched off, if it was switched off then it will be switched on. Lenny has spent some time playing with the grid and by now he has pressed each light a certain number of times. Given the number of times each light is pressed, you have to print the current state of each light.
The input consists of three rows. Each row contains three integers each between 0 to 100 inclusive. The *j*-th number in the *i*-th row is the number of times the *j*-th light of the *i*-th row of the grid is pressed.
Print three lines, each containing three characters. The *j*-th character of the *i*-th line is "1" if and only if the corresponding light is switched on, otherwise it's "0".
[ "1 0 0\n0 0 0\n0 0 1\n", "1 0 1\n8 8 8\n2 0 3\n" ]
[ "001\n010\n100\n", "010\n011\n100\n" ]
none
500
[ { "input": "1 0 0\n0 0 0\n0 0 1", "output": "001\n010\n100" }, { "input": "1 0 1\n8 8 8\n2 0 3", "output": "010\n011\n100" }, { "input": "13 85 77\n25 50 45\n65 79 9", "output": "000\n010\n000" }, { "input": "96 95 5\n8 84 74\n67 31 61", "output": "011\n011\n101" }, { "input": "24 54 37\n60 63 6\n1 84 26", "output": "110\n101\n011" }, { "input": "23 10 40\n15 6 40\n92 80 77", "output": "101\n100\n000" }, { "input": "62 74 80\n95 74 93\n2 47 95", "output": "010\n001\n110" }, { "input": "80 83 48\n26 0 66\n47 76 37", "output": "000\n000\n010" }, { "input": "32 15 65\n7 54 36\n5 51 3", "output": "111\n101\n001" }, { "input": "22 97 12\n71 8 24\n100 21 64", "output": "100\n001\n100" }, { "input": "46 37 13\n87 0 50\n90 8 55", "output": "111\n011\n000" }, { "input": "57 43 58\n20 82 83\n66 16 52", "output": "111\n010\n110" }, { "input": "45 56 93\n47 51 59\n18 51 63", "output": "101\n011\n100" }, { "input": "47 66 67\n14 1 37\n27 81 69", "output": "001\n001\n110" }, { "input": "26 69 69\n85 18 23\n14 22 74", "output": "110\n001\n010" }, { "input": "10 70 65\n94 27 25\n74 66 30", "output": "111\n010\n100" }, { "input": "97 1 74\n15 99 1\n88 68 86", "output": "001\n011\n000" }, { "input": "36 48 42\n45 41 66\n26 64 1", "output": "001\n111\n010" }, { "input": "52 81 97\n29 77 71\n66 11 2", "output": "100\n100\n111" }, { "input": "18 66 33\n19 49 49\n48 46 26", "output": "011\n100\n000" }, { "input": "68 79 52\n51 39 100\n29 14 26", "output": "110\n000\n111" }, { "input": "91 69 77\n91 26 64\n91 88 57", "output": "001\n011\n110" }, { "input": "16 69 64\n48 21 80\n81 51 51", "output": "010\n101\n111" }, { "input": "96 14 2\n100 18 12\n65 34 89", "output": "111\n010\n010" }, { "input": "93 95 90\n8 59 42\n53 13 19", "output": "100\n001\n111" }, { "input": "71 84 18\n100 19 67\n9 76 15", "output": "010\n010\n001" }, { "input": "38 93 85\n21 88 64\n4 96 25", "output": "111\n011\n000" }, { "input": "75 20 20\n60 5 78\n77 4 69", "output": "011\n001\n000" }, { "input": "65 70 96\n19 6 83\n33 37 82", "output": "100\n000\n011" }, { "input": "11 13 60\n17 13 46\n42 21 39", "output": "000\n011\n101" }, { "input": "0 0 0\n0 0 0\n0 0 0", "output": "111\n111\n111" }, { "input": "0 0 0\n0 1 0\n0 0 0", "output": "101\n000\n101" }, { "input": "0 0 0\n0 0 0\n0 0 1", "output": "111\n110\n100" } ]
1,588,962,099
2,147,483,647
Python 3
OK
TESTS
33
124
6,963,200
import sys input = sys.stdin.readline def inlt(): return (list(map(int, input().split()))) def solve(m): def helper(mat, i, j): direction = [(0,0), (-1, 0), (1, 0), (0, -1), (0, 1)] for d in direction: if i + d[0] > -1 and i + d[0] < 3 and j + d[1] > -1 and j + d[1] < 3: if mat[i + d[0]][j + d[1]] == 0: mat[i + d[0]][j + d[1]] = 1 else: mat[i + d[0]][j + d[1]] = 0 return mat mat = [[1] * 3 for _ in range(3)] for r in range(3): for c in range(3): if m[r][c] % 2 != 0: mat = helper(mat, r, c) return mat if __name__ == '__main__': m = [] for i in range(3): m.append(inlt()) mat = solve(m) for i in range(3): print("".join(map(str, mat[i])))
Title: Lights Out Time Limit: None seconds Memory Limit: None megabytes Problem Description: Lenny is playing a game on a 3<=×<=3 grid of lights. In the beginning of the game all lights are switched on. Pressing any of the lights will toggle it and all side-adjacent lights. The goal of the game is to switch all the lights off. We consider the toggling as follows: if the light was switched on then it will be switched off, if it was switched off then it will be switched on. Lenny has spent some time playing with the grid and by now he has pressed each light a certain number of times. Given the number of times each light is pressed, you have to print the current state of each light. Input Specification: The input consists of three rows. Each row contains three integers each between 0 to 100 inclusive. The *j*-th number in the *i*-th row is the number of times the *j*-th light of the *i*-th row of the grid is pressed. Output Specification: Print three lines, each containing three characters. The *j*-th character of the *i*-th line is "1" if and only if the corresponding light is switched on, otherwise it's "0". Demo Input: ['1 0 0\n0 0 0\n0 0 1\n', '1 0 1\n8 8 8\n2 0 3\n'] Demo Output: ['001\n010\n100\n', '010\n011\n100\n'] Note: none
```python import sys input = sys.stdin.readline def inlt(): return (list(map(int, input().split()))) def solve(m): def helper(mat, i, j): direction = [(0,0), (-1, 0), (1, 0), (0, -1), (0, 1)] for d in direction: if i + d[0] > -1 and i + d[0] < 3 and j + d[1] > -1 and j + d[1] < 3: if mat[i + d[0]][j + d[1]] == 0: mat[i + d[0]][j + d[1]] = 1 else: mat[i + d[0]][j + d[1]] = 0 return mat mat = [[1] * 3 for _ in range(3)] for r in range(3): for c in range(3): if m[r][c] % 2 != 0: mat = helper(mat, r, c) return mat if __name__ == '__main__': m = [] for i in range(3): m.append(inlt()) mat = solve(m) for i in range(3): print("".join(map(str, mat[i]))) ```
3
69
A
Young Physicist
PROGRAMMING
1,000
[ "implementation", "math" ]
A. Young Physicist
2
256
A guy named Vasya attends the final grade of a high school. One day Vasya decided to watch a match of his favorite hockey team. And, as the boy loves hockey very much, even more than physics, he forgot to do the homework. Specifically, he forgot to complete his physics tasks. Next day the teacher got very angry at Vasya and decided to teach him a lesson. He gave the lazy student a seemingly easy task: You are given an idle body in space and the forces that affect it. The body can be considered as a material point with coordinates (0; 0; 0). Vasya had only to answer whether it is in equilibrium. "Piece of cake" — thought Vasya, we need only to check if the sum of all vectors is equal to 0. So, Vasya began to solve the problem. But later it turned out that there can be lots and lots of these forces, and Vasya can not cope without your help. Help him. Write a program that determines whether a body is idle or is moving by the given vectors of forces.
The first line contains a positive integer *n* (1<=≤<=*n*<=≤<=100), then follow *n* lines containing three integers each: the *x**i* coordinate, the *y**i* coordinate and the *z**i* coordinate of the force vector, applied to the body (<=-<=100<=≤<=*x**i*,<=*y**i*,<=*z**i*<=≤<=100).
Print the word "YES" if the body is in equilibrium, or the word "NO" if it is not.
[ "3\n4 1 7\n-2 4 -1\n1 -5 -3\n", "3\n3 -1 7\n-5 2 -4\n2 -1 -3\n" ]
[ "NO", "YES" ]
none
500
[ { "input": "3\n4 1 7\n-2 4 -1\n1 -5 -3", "output": "NO" }, { "input": "3\n3 -1 7\n-5 2 -4\n2 -1 -3", "output": "YES" }, { "input": "10\n21 32 -46\n43 -35 21\n42 2 -50\n22 40 20\n-27 -9 38\n-4 1 1\n-40 6 -31\n-13 -2 34\n-21 34 -12\n-32 -29 41", "output": "NO" }, { "input": "10\n25 -33 43\n-27 -42 28\n-35 -20 19\n41 -42 -1\n49 -39 -4\n-49 -22 7\n-19 29 41\n8 -27 -43\n8 34 9\n-11 -3 33", "output": "NO" }, { "input": "10\n-6 21 18\n20 -11 -8\n37 -11 41\n-5 8 33\n29 23 32\n30 -33 -11\n39 -49 -36\n28 34 -49\n22 29 -34\n-18 -6 7", "output": "NO" }, { "input": "10\n47 -2 -27\n0 26 -14\n5 -12 33\n2 18 3\n45 -30 -49\n4 -18 8\n-46 -44 -41\n-22 -10 -40\n-35 -21 26\n33 20 38", "output": "NO" }, { "input": "13\n-3 -36 -46\n-11 -50 37\n42 -11 -15\n9 42 44\n-29 -12 24\n3 9 -40\n-35 13 50\n14 43 18\n-13 8 24\n-48 -15 10\n50 9 -50\n21 0 -50\n0 0 -6", "output": "YES" }, { "input": "14\n43 23 17\n4 17 44\n5 -5 -16\n-43 -7 -6\n47 -48 12\n50 47 -45\n2 14 43\n37 -30 15\n4 -17 -11\n17 9 -45\n-50 -3 -8\n-50 0 0\n-50 0 0\n-16 0 0", "output": "YES" }, { "input": "13\n29 49 -11\n38 -11 -20\n25 1 -40\n-11 28 11\n23 -19 1\n45 -41 -17\n-3 0 -19\n-13 -33 49\n-30 0 28\n34 17 45\n-50 9 -27\n-50 0 0\n-37 0 0", "output": "YES" }, { "input": "12\n3 28 -35\n-32 -44 -17\n9 -25 -6\n-42 -22 20\n-19 15 38\n-21 38 48\n-1 -37 -28\n-10 -13 -50\n-5 21 29\n34 28 50\n50 11 -49\n34 0 0", "output": "YES" }, { "input": "37\n-64 -79 26\n-22 59 93\n-5 39 -12\n77 -9 76\n55 -86 57\n83 100 -97\n-70 94 84\n-14 46 -94\n26 72 35\n14 78 -62\n17 82 92\n-57 11 91\n23 15 92\n-80 -1 1\n12 39 18\n-23 -99 -75\n-34 50 19\n-39 84 -7\n45 -30 -39\n-60 49 37\n45 -16 -72\n33 -51 -56\n-48 28 5\n97 91 88\n45 -82 -11\n-21 -15 -90\n-53 73 -26\n-74 85 -90\n-40 23 38\n100 -13 49\n32 -100 -100\n0 -100 -70\n0 -100 0\n0 -100 0\n0 -100 0\n0 -100 0\n0 -37 0", "output": "YES" }, { "input": "4\n68 3 100\n68 21 -100\n-100 -24 0\n-36 0 0", "output": "YES" }, { "input": "33\n-1 -46 -12\n45 -16 -21\n-11 45 -21\n-60 -42 -93\n-22 -45 93\n37 96 85\n-76 26 83\n-4 9 55\n7 -52 -9\n66 8 -85\n-100 -54 11\n-29 59 74\n-24 12 2\n-56 81 85\n-92 69 -52\n-26 -97 91\n54 59 -51\n58 21 -57\n7 68 56\n-47 -20 -51\n-59 77 -13\n-85 27 91\n79 60 -56\n66 -80 5\n21 -99 42\n-31 -29 98\n66 93 76\n-49 45 61\n100 -100 -100\n100 -100 -100\n66 -75 -100\n0 0 -100\n0 0 -87", "output": "YES" }, { "input": "3\n1 2 3\n3 2 1\n0 0 0", "output": "NO" }, { "input": "2\n5 -23 12\n0 0 0", "output": "NO" }, { "input": "1\n0 0 0", "output": "YES" }, { "input": "1\n1 -2 0", "output": "NO" }, { "input": "2\n-23 77 -86\n23 -77 86", "output": "YES" }, { "input": "26\n86 7 20\n-57 -64 39\n-45 6 -93\n-44 -21 100\n-11 -49 21\n73 -71 -80\n-2 -89 56\n-65 -2 7\n5 14 84\n57 41 13\n-12 69 54\n40 -25 27\n-17 -59 0\n64 -91 -30\n-53 9 42\n-54 -8 14\n-35 82 27\n-48 -59 -80\n88 70 79\n94 57 97\n44 63 25\n84 -90 -40\n-100 100 -100\n-92 100 -100\n0 10 -100\n0 0 -82", "output": "YES" }, { "input": "42\n11 27 92\n-18 -56 -57\n1 71 81\n33 -92 30\n82 83 49\n-87 -61 -1\n-49 45 49\n73 26 15\n-22 22 -77\n29 -93 87\n-68 44 -90\n-4 -84 20\n85 67 -6\n-39 26 77\n-28 -64 20\n65 -97 24\n-72 -39 51\n35 -75 -91\n39 -44 -8\n-25 -27 -57\n91 8 -46\n-98 -94 56\n94 -60 59\n-9 -95 18\n-53 -37 98\n-8 -94 -84\n-52 55 60\n15 -14 37\n65 -43 -25\n94 12 66\n-8 -19 -83\n29 81 -78\n-58 57 33\n24 86 -84\n-53 32 -88\n-14 7 3\n89 97 -53\n-5 -28 -91\n-100 100 -6\n-84 100 0\n0 100 0\n0 70 0", "output": "YES" }, { "input": "3\n96 49 -12\n2 -66 28\n-98 17 -16", "output": "YES" }, { "input": "5\n70 -46 86\n-100 94 24\n-27 63 -63\n57 -100 -47\n0 -11 0", "output": "YES" }, { "input": "18\n-86 -28 70\n-31 -89 42\n31 -48 -55\n95 -17 -43\n24 -95 -85\n-21 -14 31\n68 -18 81\n13 31 60\n-15 28 99\n-42 15 9\n28 -61 -62\n-16 71 29\n-28 75 -48\n-77 -67 36\n-100 83 89\n100 100 -100\n57 34 -100\n0 0 -53", "output": "YES" }, { "input": "44\n52 -54 -29\n-82 -5 -94\n-54 43 43\n91 16 71\n7 80 -91\n3 15 29\n-99 -6 -77\n-3 -77 -64\n73 67 34\n25 -10 -18\n-29 91 63\n-72 86 -16\n-68 85 -81\n-3 36 44\n-74 -14 -80\n34 -96 -97\n-76 -78 -33\n-24 44 -58\n98 12 77\n95 -63 -6\n-51 3 -90\n-92 -10 72\n7 3 -68\n57 -53 71\n29 57 -48\n35 -60 10\n79 -70 -61\n-20 77 55\n-86 -15 -35\n84 -88 -18\n100 -42 77\n-20 46 8\n-41 -43 -65\n38 -98 -23\n-100 65 45\n-7 -91 -63\n46 88 -85\n48 59 100\n0 0 100\n0 0 100\n0 0 100\n0 0 100\n0 0 100\n0 0 1", "output": "YES" }, { "input": "18\n-14 -64 -91\n-8 -66 -86\n-23 92 -40\n6 -3 -53\n57 41 78\n-79 42 -22\n-88 -17 45\n4 -45 44\n83 -18 -25\n34 86 -92\n75 -30 12\n44 99 11\n-67 -13 72\n22 83 -56\n-37 71 72\n-9 -100 100\n0 -100 31\n0 -58 0", "output": "YES" }, { "input": "23\n-70 37 78\n42 84 6\n28 -94 -24\n-49 76 95\n-67 18 84\n-53 78 -5\n65 -63 -64\n-66 -64 -69\n81 -93 95\n10 52 -79\n-89 -61 -64\n-64 -47 43\n-81 -35 55\n80 82 73\n-60 -81 -18\n49 -10 -19\n-58 70 12\n-24 -15 -93\n98 -93 -54\n-28 -75 11\n100 100 -63\n100 100 0\n56 34 0", "output": "YES" }, { "input": "3\n0 2 -2\n1 -1 3\n-3 0 0", "output": "NO" } ]
1,639,661,468
2,147,483,647
PyPy 3
OK
TESTS
81
184
0
s = int(input()) c = 0 w = 0 q = 0 for i in range(s): a = input() a = a.split() # print(a) x = int(a[0]) y = int(a[1]) z = int(a[2]) # print(x,y,z) c = c + x w = w + y q = q + z # print(c, w, q) if c == 0 and w == 0 and q == 0: print('YES') else: print('NO')
Title: Young Physicist Time Limit: 2 seconds Memory Limit: 256 megabytes Problem Description: A guy named Vasya attends the final grade of a high school. One day Vasya decided to watch a match of his favorite hockey team. And, as the boy loves hockey very much, even more than physics, he forgot to do the homework. Specifically, he forgot to complete his physics tasks. Next day the teacher got very angry at Vasya and decided to teach him a lesson. He gave the lazy student a seemingly easy task: You are given an idle body in space and the forces that affect it. The body can be considered as a material point with coordinates (0; 0; 0). Vasya had only to answer whether it is in equilibrium. "Piece of cake" — thought Vasya, we need only to check if the sum of all vectors is equal to 0. So, Vasya began to solve the problem. But later it turned out that there can be lots and lots of these forces, and Vasya can not cope without your help. Help him. Write a program that determines whether a body is idle or is moving by the given vectors of forces. Input Specification: The first line contains a positive integer *n* (1<=≤<=*n*<=≤<=100), then follow *n* lines containing three integers each: the *x**i* coordinate, the *y**i* coordinate and the *z**i* coordinate of the force vector, applied to the body (<=-<=100<=≤<=*x**i*,<=*y**i*,<=*z**i*<=≤<=100). Output Specification: Print the word "YES" if the body is in equilibrium, or the word "NO" if it is not. Demo Input: ['3\n4 1 7\n-2 4 -1\n1 -5 -3\n', '3\n3 -1 7\n-5 2 -4\n2 -1 -3\n'] Demo Output: ['NO', 'YES'] Note: none
```python s = int(input()) c = 0 w = 0 q = 0 for i in range(s): a = input() a = a.split() # print(a) x = int(a[0]) y = int(a[1]) z = int(a[2]) # print(x,y,z) c = c + x w = w + y q = q + z # print(c, w, q) if c == 0 and w == 0 and q == 0: print('YES') else: print('NO') ```
3.954
625
B
War of the Corporations
PROGRAMMING
1,200
[ "constructive algorithms", "greedy", "strings" ]
null
null
A long time ago, in a galaxy far far away two giant IT-corporations Pineapple and Gogol continue their fierce competition. Crucial moment is just around the corner: Gogol is ready to release it's new tablet Lastus 3000. This new device is equipped with specially designed artificial intelligence (AI). Employees of Pineapple did their best to postpone the release of Lastus 3000 as long as possible. Finally, they found out, that the name of the new artificial intelligence is similar to the name of the phone, that Pineapple released 200 years ago. As all rights on its name belong to Pineapple, they stand on changing the name of Gogol's artificial intelligence. Pineapple insists, that the name of their phone occurs in the name of AI as a substring. Because the name of technology was already printed on all devices, the Gogol's director decided to replace some characters in AI name with "#". As this operation is pretty expensive, you should find the minimum number of characters to replace with "#", such that the name of AI doesn't contain the name of the phone as a substring. Substring is a continuous subsequence of a string.
The first line of the input contains the name of AI designed by Gogol, its length doesn't exceed 100<=000 characters. Second line contains the name of the phone released by Pineapple 200 years ago, its length doesn't exceed 30. Both string are non-empty and consist of only small English letters.
Print the minimum number of characters that must be replaced with "#" in order to obtain that the name of the phone doesn't occur in the name of AI as a substring.
[ "intellect\ntell\n", "google\napple\n", "sirisiri\nsir\n" ]
[ "1", "0", "2" ]
In the first sample AI's name may be replaced with "int#llect". In the second sample Gogol can just keep things as they are. In the third sample one of the new possible names of AI may be "s#ris#ri".
750
[ { "input": "intellect\ntell", "output": "1" }, { "input": "google\napple", "output": "0" }, { "input": "sirisiri\nsir", "output": "2" }, { "input": "sirisiri\nsiri", "output": "2" }, { "input": "aaaaaaa\naaaa", "output": "1" }, { "input": "bbbbbb\nbb", "output": "3" }, { "input": "abc\nabcabc", "output": "0" }, { "input": "kek\nkekekek", "output": "0" }, { "input": "aaaaa\naaa", "output": "1" }, { "input": "abcdabcv\nabcd", "output": "1" }, { "input": "abcabcabczabcabcabcz\ncab", "output": "4" }, { "input": "aatopotopotopotaa\ntopot", "output": "2" }, { "input": "abcabcabcabcabcabcabcabcabcabc\nabcabcabcabcabcabcabcabcabcabc", "output": "1" }, { "input": "sosossosos\nsos", "output": "2" }, { "input": "sosossosossosossosossosossosossosossosossosossosossosossosossosossosossosossosossosossosossosossosos\nsos", "output": "20" }, { "input": "tatatx\ntatx", "output": "1" }, { "input": "sxxsxxsxxd\nsxxsxxd", "output": "1" } ]
1,581,979,764
2,147,483,647
PyPy 3
OK
TESTS
56
170
1,945,600
# your code goes here s1=input() s2=input() n1=len(s1) n2=len(s2) c=0 i=0 while i<=n1-n2+1: st=s1[i:i+n2] if st==s2: c+=1 i=i+n2 else: i+=1 print(c)
Title: War of the Corporations Time Limit: None seconds Memory Limit: None megabytes Problem Description: A long time ago, in a galaxy far far away two giant IT-corporations Pineapple and Gogol continue their fierce competition. Crucial moment is just around the corner: Gogol is ready to release it's new tablet Lastus 3000. This new device is equipped with specially designed artificial intelligence (AI). Employees of Pineapple did their best to postpone the release of Lastus 3000 as long as possible. Finally, they found out, that the name of the new artificial intelligence is similar to the name of the phone, that Pineapple released 200 years ago. As all rights on its name belong to Pineapple, they stand on changing the name of Gogol's artificial intelligence. Pineapple insists, that the name of their phone occurs in the name of AI as a substring. Because the name of technology was already printed on all devices, the Gogol's director decided to replace some characters in AI name with "#". As this operation is pretty expensive, you should find the minimum number of characters to replace with "#", such that the name of AI doesn't contain the name of the phone as a substring. Substring is a continuous subsequence of a string. Input Specification: The first line of the input contains the name of AI designed by Gogol, its length doesn't exceed 100<=000 characters. Second line contains the name of the phone released by Pineapple 200 years ago, its length doesn't exceed 30. Both string are non-empty and consist of only small English letters. Output Specification: Print the minimum number of characters that must be replaced with "#" in order to obtain that the name of the phone doesn't occur in the name of AI as a substring. Demo Input: ['intellect\ntell\n', 'google\napple\n', 'sirisiri\nsir\n'] Demo Output: ['1', '0', '2'] Note: In the first sample AI's name may be replaced with "int#llect". In the second sample Gogol can just keep things as they are. In the third sample one of the new possible names of AI may be "s#ris#ri".
```python # your code goes here s1=input() s2=input() n1=len(s1) n2=len(s2) c=0 i=0 while i<=n1-n2+1: st=s1[i:i+n2] if st==s2: c+=1 i=i+n2 else: i+=1 print(c) ```
3
686
A
Free Ice Cream
PROGRAMMING
800
[ "constructive algorithms", "implementation" ]
null
null
After their adventure with the magic mirror Kay and Gerda have returned home and sometimes give free ice cream to kids in the summer. At the start of the day they have *x* ice cream packs. Since the ice cream is free, people start standing in the queue before Kay and Gerda's house even in the night. Each person in the queue wants either to take several ice cream packs for himself and his friends or to give several ice cream packs to Kay and Gerda (carriers that bring ice cream have to stand in the same queue). If a carrier with *d* ice cream packs comes to the house, then Kay and Gerda take all his packs. If a child who wants to take *d* ice cream packs comes to the house, then Kay and Gerda will give him *d* packs if they have enough ice cream, otherwise the child will get no ice cream at all and will leave in distress. Kay wants to find the amount of ice cream they will have after all people will leave from the queue, and Gerda wants to find the number of distressed kids.
The first line contains two space-separated integers *n* and *x* (1<=≤<=*n*<=≤<=1000, 0<=≤<=*x*<=≤<=109). Each of the next *n* lines contains a character '+' or '-', and an integer *d**i*, separated by a space (1<=≤<=*d**i*<=≤<=109). Record "+ *d**i*" in *i*-th line means that a carrier with *d**i* ice cream packs occupies *i*-th place from the start of the queue, and record "- *d**i*" means that a child who wants to take *d**i* packs stands in *i*-th place.
Print two space-separated integers — number of ice cream packs left after all operations, and number of kids that left the house in distress.
[ "5 7\n+ 5\n- 10\n- 20\n+ 40\n- 20\n", "5 17\n- 16\n- 2\n- 98\n+ 100\n- 98\n" ]
[ "22 1\n", "3 2\n" ]
Consider the first sample. 1. Initially Kay and Gerda have 7 packs of ice cream. 1. Carrier brings 5 more, so now they have 12 packs. 1. A kid asks for 10 packs and receives them. There are only 2 packs remaining. 1. Another kid asks for 20 packs. Kay and Gerda do not have them, so the kid goes away distressed. 1. Carrier bring 40 packs, now Kay and Gerda have 42 packs. 1. Kid asks for 20 packs and receives them. There are 22 packs remaining.
500
[ { "input": "5 7\n+ 5\n- 10\n- 20\n+ 40\n- 20", "output": "22 1" }, { "input": "5 17\n- 16\n- 2\n- 98\n+ 100\n- 98", "output": "3 2" }, { "input": "6 1000000000\n+ 1000000000\n+ 1000000000\n+ 1000000000\n+ 1000000000\n+ 1000000000\n+ 1000000000", "output": "7000000000 0" }, { "input": "5 12\n- 12\n+ 7\n- 6\n- 1\n+ 46", "output": "46 0" }, { "input": "11 1000\n- 100\n+ 100\n+ 100\n+ 100\n+ 100\n- 100\n- 100\n- 100\n- 100\n- 100\n- 100", "output": "700 0" }, { "input": "1 0\n- 526403222", "output": "0 1" }, { "input": "1 897986543\n- 371188251", "output": "526798292 0" }, { "input": "1 0\n+ 1", "output": "1 0" }, { "input": "1 0\n- 1", "output": "0 1" }, { "input": "1 10\n+ 10", "output": "20 0" }, { "input": "1 3\n- 5", "output": "3 1" }, { "input": "1 0\n- 5", "output": "0 1" }, { "input": "1 0\n+ 5", "output": "5 0" } ]
1,680,357,134
2,147,483,647
Python 3
OK
TESTS
34
46
0
n,x=map(int,input().split()) ic_available=x dis=0 for i in range(n): ch,no=input().split() if ch=='+': ic_available+=int(no) elif ch=='-': if ic_available>=int(no): ic_available-=int(no) else: dis+=1 print(ic_available,dis)
Title: Free Ice Cream Time Limit: None seconds Memory Limit: None megabytes Problem Description: After their adventure with the magic mirror Kay and Gerda have returned home and sometimes give free ice cream to kids in the summer. At the start of the day they have *x* ice cream packs. Since the ice cream is free, people start standing in the queue before Kay and Gerda's house even in the night. Each person in the queue wants either to take several ice cream packs for himself and his friends or to give several ice cream packs to Kay and Gerda (carriers that bring ice cream have to stand in the same queue). If a carrier with *d* ice cream packs comes to the house, then Kay and Gerda take all his packs. If a child who wants to take *d* ice cream packs comes to the house, then Kay and Gerda will give him *d* packs if they have enough ice cream, otherwise the child will get no ice cream at all and will leave in distress. Kay wants to find the amount of ice cream they will have after all people will leave from the queue, and Gerda wants to find the number of distressed kids. Input Specification: The first line contains two space-separated integers *n* and *x* (1<=≤<=*n*<=≤<=1000, 0<=≤<=*x*<=≤<=109). Each of the next *n* lines contains a character '+' or '-', and an integer *d**i*, separated by a space (1<=≤<=*d**i*<=≤<=109). Record "+ *d**i*" in *i*-th line means that a carrier with *d**i* ice cream packs occupies *i*-th place from the start of the queue, and record "- *d**i*" means that a child who wants to take *d**i* packs stands in *i*-th place. Output Specification: Print two space-separated integers — number of ice cream packs left after all operations, and number of kids that left the house in distress. Demo Input: ['5 7\n+ 5\n- 10\n- 20\n+ 40\n- 20\n', '5 17\n- 16\n- 2\n- 98\n+ 100\n- 98\n'] Demo Output: ['22 1\n', '3 2\n'] Note: Consider the first sample. 1. Initially Kay and Gerda have 7 packs of ice cream. 1. Carrier brings 5 more, so now they have 12 packs. 1. A kid asks for 10 packs and receives them. There are only 2 packs remaining. 1. Another kid asks for 20 packs. Kay and Gerda do not have them, so the kid goes away distressed. 1. Carrier bring 40 packs, now Kay and Gerda have 42 packs. 1. Kid asks for 20 packs and receives them. There are 22 packs remaining.
```python n,x=map(int,input().split()) ic_available=x dis=0 for i in range(n): ch,no=input().split() if ch=='+': ic_available+=int(no) elif ch=='-': if ic_available>=int(no): ic_available-=int(no) else: dis+=1 print(ic_available,dis) ```
3
25
C
Roads in Berland
PROGRAMMING
1,900
[ "graphs", "shortest paths" ]
C. Roads in Berland
2
256
There are *n* cities numbered from 1 to *n* in Berland. Some of them are connected by two-way roads. Each road has its own length — an integer number from 1 to 1000. It is known that from each city it is possible to get to any other city by existing roads. Also for each pair of cities it is known the shortest distance between them. Berland Government plans to build *k* new roads. For each of the planned road it is known its length, and what cities it will connect. To control the correctness of the construction of new roads, after the opening of another road Berland government wants to check the sum of the shortest distances between all pairs of cities. Help them — for a given matrix of shortest distances on the old roads and plans of all new roads, find out how the sum of the shortest distances between all pairs of cities changes after construction of each road.
The first line contains integer *n* (2<=≤<=*n*<=≤<=300) — amount of cities in Berland. Then there follow *n* lines with *n* integer numbers each — the matrix of shortest distances. *j*-th integer in the *i*-th row — *d**i*,<=*j*, the shortest distance between cities *i* and *j*. It is guaranteed that *d**i*,<=*i*<==<=0,<=*d**i*,<=*j*<==<=*d**j*,<=*i*, and a given matrix is a matrix of shortest distances for some set of two-way roads with integer lengths from 1 to 1000, such that from each city it is possible to get to any other city using these roads. Next line contains integer *k* (1<=≤<=*k*<=≤<=300) — amount of planned roads. Following *k* lines contain the description of the planned roads. Each road is described by three space-separated integers *a**i*, *b**i*, *c**i* (1<=≤<=*a**i*,<=*b**i*<=≤<=*n*,<=*a**i*<=≠<=*b**i*,<=1<=≤<=*c**i*<=≤<=1000) — *a**i* and *b**i* — pair of cities, which the road connects, *c**i* — the length of the road. It can be several roads between a pair of cities, but no road connects the city with itself.
Output *k* space-separated integers *q**i* (1<=≤<=*i*<=≤<=*k*). *q**i* should be equal to the sum of shortest distances between all pairs of cities after the construction of roads with indexes from 1 to *i*. Roads are numbered from 1 in the input order. Each pair of cities should be taken into account in the sum exactly once, i. e. we count unordered pairs.
[ "2\n0 5\n5 0\n1\n1 2 3\n", "3\n0 4 5\n4 0 9\n5 9 0\n2\n2 3 8\n1 2 1\n" ]
[ "3 ", "17 12 " ]
none
0
[ { "input": "2\n0 5\n5 0\n1\n1 2 3", "output": "3 " }, { "input": "3\n0 4 5\n4 0 9\n5 9 0\n2\n2 3 8\n1 2 1", "output": "17 12 " }, { "input": "3\n0 983 173\n983 0 810\n173 810 0\n3\n3 2 567\n2 3 767\n1 2 763", "output": "1480 1480 1480 " }, { "input": "4\n0 537 1064 656\n537 0 527 119\n1064 527 0 408\n656 119 408 0\n4\n1 4 123\n1 4 344\n3 2 982\n3 2 587", "output": "1950 1950 1950 1950 " }, { "input": "5\n0 954 1255 266 751\n954 0 1677 688 1173\n1255 1677 0 989 504\n266 688 989 0 485\n751 1173 504 485 0\n5\n5 2 837\n3 4 692\n3 5 756\n3 1 151\n2 5 262", "output": "8070 7476 7476 6062 5111 " } ]
1,667,721,377
2,147,483,647
PyPy 3-64
OK
TESTS
41
1,214
7,270,400
n = int(input()) matrix = [] for _ in range(n): li = list(map(int, input().split())) matrix.append(li) k = int(input()) ans = [] def floyd(matrix, inter): for i in range(len(matrix)): for j in range(len(matrix)): matrix[i][j] = min(matrix[i][j], matrix[i][inter] + matrix[inter][j]) ans = [] for _ in range(k): a, b, length = list(map(int, input().split())) if length < matrix[a - 1][b - 1]: matrix[a - 1][b - 1] = length matrix[b - 1][a - 1] = length floyd(matrix, a - 1) floyd(matrix, b - 1) summ = 0 for i in range(len(matrix)): for j in range(len(matrix[i])): summ += matrix[i][j] # print(matrix, "**") summ = summ // 2 ans.append(summ) print(*ans)
Title: Roads in Berland Time Limit: 2 seconds Memory Limit: 256 megabytes Problem Description: There are *n* cities numbered from 1 to *n* in Berland. Some of them are connected by two-way roads. Each road has its own length — an integer number from 1 to 1000. It is known that from each city it is possible to get to any other city by existing roads. Also for each pair of cities it is known the shortest distance between them. Berland Government plans to build *k* new roads. For each of the planned road it is known its length, and what cities it will connect. To control the correctness of the construction of new roads, after the opening of another road Berland government wants to check the sum of the shortest distances between all pairs of cities. Help them — for a given matrix of shortest distances on the old roads and plans of all new roads, find out how the sum of the shortest distances between all pairs of cities changes after construction of each road. Input Specification: The first line contains integer *n* (2<=≤<=*n*<=≤<=300) — amount of cities in Berland. Then there follow *n* lines with *n* integer numbers each — the matrix of shortest distances. *j*-th integer in the *i*-th row — *d**i*,<=*j*, the shortest distance between cities *i* and *j*. It is guaranteed that *d**i*,<=*i*<==<=0,<=*d**i*,<=*j*<==<=*d**j*,<=*i*, and a given matrix is a matrix of shortest distances for some set of two-way roads with integer lengths from 1 to 1000, such that from each city it is possible to get to any other city using these roads. Next line contains integer *k* (1<=≤<=*k*<=≤<=300) — amount of planned roads. Following *k* lines contain the description of the planned roads. Each road is described by three space-separated integers *a**i*, *b**i*, *c**i* (1<=≤<=*a**i*,<=*b**i*<=≤<=*n*,<=*a**i*<=≠<=*b**i*,<=1<=≤<=*c**i*<=≤<=1000) — *a**i* and *b**i* — pair of cities, which the road connects, *c**i* — the length of the road. It can be several roads between a pair of cities, but no road connects the city with itself. Output Specification: Output *k* space-separated integers *q**i* (1<=≤<=*i*<=≤<=*k*). *q**i* should be equal to the sum of shortest distances between all pairs of cities after the construction of roads with indexes from 1 to *i*. Roads are numbered from 1 in the input order. Each pair of cities should be taken into account in the sum exactly once, i. e. we count unordered pairs. Demo Input: ['2\n0 5\n5 0\n1\n1 2 3\n', '3\n0 4 5\n4 0 9\n5 9 0\n2\n2 3 8\n1 2 1\n'] Demo Output: ['3 ', '17 12 '] Note: none
```python n = int(input()) matrix = [] for _ in range(n): li = list(map(int, input().split())) matrix.append(li) k = int(input()) ans = [] def floyd(matrix, inter): for i in range(len(matrix)): for j in range(len(matrix)): matrix[i][j] = min(matrix[i][j], matrix[i][inter] + matrix[inter][j]) ans = [] for _ in range(k): a, b, length = list(map(int, input().split())) if length < matrix[a - 1][b - 1]: matrix[a - 1][b - 1] = length matrix[b - 1][a - 1] = length floyd(matrix, a - 1) floyd(matrix, b - 1) summ = 0 for i in range(len(matrix)): for j in range(len(matrix[i])): summ += matrix[i][j] # print(matrix, "**") summ = summ // 2 ans.append(summ) print(*ans) ```
3.682958
50
A
Domino piling
PROGRAMMING
800
[ "greedy", "math" ]
A. Domino piling
2
256
You are given a rectangular board of *M*<=×<=*N* squares. Also you are given an unlimited number of standard domino pieces of 2<=×<=1 squares. You are allowed to rotate the pieces. You are asked to place as many dominoes as possible on the board so as to meet the following conditions: 1. Each domino completely covers two squares. 2. No two dominoes overlap. 3. Each domino lies entirely inside the board. It is allowed to touch the edges of the board. Find the maximum number of dominoes, which can be placed under these restrictions.
In a single line you are given two integers *M* and *N* — board sizes in squares (1<=≤<=*M*<=≤<=*N*<=≤<=16).
Output one number — the maximal number of dominoes, which can be placed.
[ "2 4\n", "3 3\n" ]
[ "4\n", "4\n" ]
none
500
[ { "input": "2 4", "output": "4" }, { "input": "3 3", "output": "4" }, { "input": "1 5", "output": "2" }, { "input": "1 6", "output": "3" }, { "input": "1 15", "output": "7" }, { "input": "1 16", "output": "8" }, { "input": "2 5", "output": "5" }, { "input": "2 6", "output": "6" }, { "input": "2 7", "output": "7" }, { "input": "2 14", "output": "14" }, { "input": "2 15", "output": "15" }, { "input": "1 4", "output": "2" }, { "input": "2 16", "output": "16" }, { "input": "3 5", "output": "7" }, { "input": "3 6", "output": "9" }, { "input": "3 10", "output": "15" }, { "input": "3 14", "output": "21" }, { "input": "3 15", "output": "22" }, { "input": "3 16", "output": "24" }, { "input": "5 7", "output": "17" }, { "input": "16 16", "output": "128" }, { "input": "15 16", "output": "120" }, { "input": "2 3", "output": "3" }, { "input": "15 15", "output": "112" }, { "input": "14 16", "output": "112" }, { "input": "11 13", "output": "71" }, { "input": "5 16", "output": "40" }, { "input": "8 15", "output": "60" }, { "input": "2 2", "output": "2" }, { "input": "3 4", "output": "6" }, { "input": "4 4", "output": "8" }, { "input": "1 1", "output": "0" }, { "input": "1 2", "output": "1" }, { "input": "1 3", "output": "1" }, { "input": "14 15", "output": "105" } ]
1,617,221,270
2,147,483,647
PyPy 3
OK
TESTS
35
218
0
N,M = map(int,input().split()) print((N*M)//2)
Title: Domino piling Time Limit: 2 seconds Memory Limit: 256 megabytes Problem Description: You are given a rectangular board of *M*<=×<=*N* squares. Also you are given an unlimited number of standard domino pieces of 2<=×<=1 squares. You are allowed to rotate the pieces. You are asked to place as many dominoes as possible on the board so as to meet the following conditions: 1. Each domino completely covers two squares. 2. No two dominoes overlap. 3. Each domino lies entirely inside the board. It is allowed to touch the edges of the board. Find the maximum number of dominoes, which can be placed under these restrictions. Input Specification: In a single line you are given two integers *M* and *N* — board sizes in squares (1<=≤<=*M*<=≤<=*N*<=≤<=16). Output Specification: Output one number — the maximal number of dominoes, which can be placed. Demo Input: ['2 4\n', '3 3\n'] Demo Output: ['4\n', '4\n'] Note: none
```python N,M = map(int,input().split()) print((N*M)//2) ```
3.9455
1,003
A
Polycarp's Pockets
PROGRAMMING
800
[ "implementation" ]
null
null
Polycarp has $n$ coins, the value of the $i$-th coin is $a_i$. Polycarp wants to distribute all the coins between his pockets, but he cannot put two coins with the same value into the same pocket. For example, if Polycarp has got six coins represented as an array $a = [1, 2, 4, 3, 3, 2]$, he can distribute the coins into two pockets as follows: $[1, 2, 3], [2, 3, 4]$. Polycarp wants to distribute all the coins with the minimum number of used pockets. Help him to do that.
The first line of the input contains one integer $n$ ($1 \le n \le 100$) — the number of coins. The second line of the input contains $n$ integers $a_1, a_2, \dots, a_n$ ($1 \le a_i \le 100$) — values of coins.
Print only one integer — the minimum number of pockets Polycarp needs to distribute all the coins so no two coins with the same value are put into the same pocket.
[ "6\n1 2 4 3 3 2\n", "1\n100\n" ]
[ "2\n", "1\n" ]
none
0
[ { "input": "6\n1 2 4 3 3 2", "output": "2" }, { "input": "1\n100", "output": "1" }, { "input": "100\n100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100", "output": "100" }, { "input": "100\n1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1", "output": "100" }, { "input": "100\n59 47 39 47 47 71 47 28 58 47 35 79 58 47 38 47 47 47 47 27 47 43 29 95 47 49 46 71 47 74 79 47 47 32 45 67 47 47 30 37 47 47 16 67 22 76 47 86 84 10 5 47 47 47 47 47 1 51 47 54 47 8 47 47 9 47 47 47 47 28 47 47 26 47 47 47 47 47 47 92 47 47 77 47 47 24 45 47 10 47 47 89 47 27 47 89 47 67 24 71", "output": "51" }, { "input": "100\n45 99 10 27 16 85 39 38 17 32 15 23 67 48 50 97 42 70 62 30 44 81 64 73 34 22 46 5 83 52 58 60 33 74 47 88 18 61 78 53 25 95 94 31 3 75 1 57 20 54 59 9 68 7 77 43 21 87 86 24 4 80 11 49 2 72 36 84 71 8 65 55 79 100 41 14 35 89 66 69 93 37 56 82 90 91 51 19 26 92 6 96 13 98 12 28 76 40 63 29", "output": "1" }, { "input": "100\n45 29 5 2 6 50 22 36 14 15 9 48 46 20 8 37 7 47 12 50 21 38 18 27 33 19 40 10 5 49 38 42 34 37 27 30 35 24 10 3 40 49 41 3 4 44 13 25 28 31 46 36 23 1 1 23 7 22 35 26 21 16 48 42 32 8 11 16 34 11 39 32 47 28 43 41 39 4 14 19 26 45 13 18 15 25 2 44 17 29 17 33 43 6 12 30 9 20 31 24", "output": "2" }, { "input": "50\n7 7 3 3 7 4 5 6 4 3 7 5 6 4 5 4 4 5 6 7 7 7 4 5 5 5 3 7 6 3 4 6 3 6 4 4 5 4 6 6 3 5 6 3 5 3 3 7 7 6", "output": "10" }, { "input": "100\n100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 99 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100", "output": "99" }, { "input": "7\n1 2 3 3 3 1 2", "output": "3" }, { "input": "5\n1 2 3 4 5", "output": "1" }, { "input": "7\n1 2 3 4 5 6 7", "output": "1" }, { "input": "8\n1 2 3 4 5 6 7 8", "output": "1" }, { "input": "9\n1 2 3 4 5 6 7 8 9", "output": "1" }, { "input": "10\n1 2 3 4 5 6 7 8 9 10", "output": "1" }, { "input": "3\n2 1 1", "output": "2" }, { "input": "11\n1 2 3 4 5 6 7 8 9 1 1", "output": "3" }, { "input": "12\n1 2 1 1 1 1 1 1 1 1 1 1", "output": "11" }, { "input": "13\n1 1 1 1 1 1 1 1 1 1 1 1 1", "output": "13" }, { "input": "14\n1 1 1 1 1 1 1 1 1 1 1 1 1 1", "output": "14" }, { "input": "15\n1 1 1 1 1 1 1 1 1 1 1 1 1 1 1", "output": "15" }, { "input": "16\n1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1", "output": "16" }, { "input": "3\n1 1 1", "output": "3" }, { "input": "3\n1 2 3", "output": "1" }, { "input": "10\n1 1 1 1 2 2 1 1 9 10", "output": "6" }, { "input": "2\n1 1", "output": "2" }, { "input": "56\n1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1", "output": "56" }, { "input": "99\n35 96 73 72 70 83 22 93 98 75 45 32 81 82 45 54 25 7 53 72 29 2 94 19 21 98 34 28 39 99 55 85 44 23 6 47 98 2 33 34 19 57 49 35 67 4 60 4 4 23 55 6 57 66 16 68 34 45 84 79 48 63 4 9 46 88 98 13 19 27 83 12 4 63 57 22 44 77 44 62 28 52 44 64 9 24 55 22 48 4 2 9 80 76 45 1 56 22 92", "output": "6" }, { "input": "10\n1 2 2 3 3 3 4 4 4 4", "output": "4" }, { "input": "99\n97 44 33 56 42 10 61 85 64 26 40 39 82 34 75 9 51 51 39 73 58 38 74 31 13 99 58 1 28 89 76 19 52 7 40 56 12 27 72 72 67 75 62 46 22 55 35 16 18 39 60 63 92 42 85 69 34 61 73 50 57 95 30 4 45 63 76 58 32 35 48 81 10 78 95 79 55 97 21 21 22 94 30 17 78 57 89 93 100 44 16 89 68 55 19 46 42 73 21", "output": "3" }, { "input": "5\n5 5 5 5 1", "output": "4" }, { "input": "6\n2 3 2 5 2 6", "output": "3" }, { "input": "3\n58 59 58", "output": "2" }, { "input": "9\n1 2 3 4 5 6 7 8 8", "output": "2" }, { "input": "97\n1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1", "output": "97" }, { "input": "3\n95 95 4", "output": "2" }, { "input": "3\n2 2 5", "output": "2" } ]
1,672,686,692
392
Python 3
OK
TESTS
37
61
102,400
from collections import Counter n = int(input()) coins = input().split() max_freq = 0 hashmap = Counter(coins) for freq in hashmap.values(): max_freq = max(max_freq, freq) print(max_freq)
Title: Polycarp's Pockets Time Limit: None seconds Memory Limit: None megabytes Problem Description: Polycarp has $n$ coins, the value of the $i$-th coin is $a_i$. Polycarp wants to distribute all the coins between his pockets, but he cannot put two coins with the same value into the same pocket. For example, if Polycarp has got six coins represented as an array $a = [1, 2, 4, 3, 3, 2]$, he can distribute the coins into two pockets as follows: $[1, 2, 3], [2, 3, 4]$. Polycarp wants to distribute all the coins with the minimum number of used pockets. Help him to do that. Input Specification: The first line of the input contains one integer $n$ ($1 \le n \le 100$) — the number of coins. The second line of the input contains $n$ integers $a_1, a_2, \dots, a_n$ ($1 \le a_i \le 100$) — values of coins. Output Specification: Print only one integer — the minimum number of pockets Polycarp needs to distribute all the coins so no two coins with the same value are put into the same pocket. Demo Input: ['6\n1 2 4 3 3 2\n', '1\n100\n'] Demo Output: ['2\n', '1\n'] Note: none
```python from collections import Counter n = int(input()) coins = input().split() max_freq = 0 hashmap = Counter(coins) for freq in hashmap.values(): max_freq = max(max_freq, freq) print(max_freq) ```
3
271
A
Beautiful Year
PROGRAMMING
800
[ "brute force" ]
null
null
It seems like the year of 2013 came only yesterday. Do you know a curious fact? The year of 2013 is the first year after the old 1987 with only distinct digits. Now you are suggested to solve the following problem: given a year number, find the minimum year number which is strictly larger than the given one and has only distinct digits.
The single line contains integer *y* (1000<=≤<=*y*<=≤<=9000) — the year number.
Print a single integer — the minimum year number that is strictly larger than *y* and all it's digits are distinct. It is guaranteed that the answer exists.
[ "1987\n", "2013\n" ]
[ "2013\n", "2014\n" ]
none
500
[ { "input": "1987", "output": "2013" }, { "input": "2013", "output": "2014" }, { "input": "1000", "output": "1023" }, { "input": "1001", "output": "1023" }, { "input": "1234", "output": "1235" }, { "input": "5555", "output": "5601" }, { "input": "9000", "output": "9012" }, { "input": "1111", "output": "1203" }, { "input": "8999", "output": "9012" }, { "input": "4572", "output": "4573" }, { "input": "6666", "output": "6701" }, { "input": "2001", "output": "2013" }, { "input": "3000", "output": "3012" }, { "input": "7712", "output": "7801" }, { "input": "8088", "output": "8091" }, { "input": "1594", "output": "1596" }, { "input": "6016", "output": "6017" }, { "input": "8800", "output": "8901" }, { "input": "3331", "output": "3401" }, { "input": "5090", "output": "5091" }, { "input": "2342", "output": "2345" }, { "input": "2334", "output": "2340" }, { "input": "1123", "output": "1203" }, { "input": "8989", "output": "9012" }, { "input": "8977", "output": "9012" }, { "input": "6869", "output": "6870" }, { "input": "8999", "output": "9012" } ]
1,691,591,592
2,147,483,647
Python 3
OK
TESTS
27
92
0
y = int(input()) + 1 while len(set(str(y)))<=3: y += 1 print(y)
Title: Beautiful Year Time Limit: None seconds Memory Limit: None megabytes Problem Description: It seems like the year of 2013 came only yesterday. Do you know a curious fact? The year of 2013 is the first year after the old 1987 with only distinct digits. Now you are suggested to solve the following problem: given a year number, find the minimum year number which is strictly larger than the given one and has only distinct digits. Input Specification: The single line contains integer *y* (1000<=≤<=*y*<=≤<=9000) — the year number. Output Specification: Print a single integer — the minimum year number that is strictly larger than *y* and all it's digits are distinct. It is guaranteed that the answer exists. Demo Input: ['1987\n', '2013\n'] Demo Output: ['2013\n', '2014\n'] Note: none
```python y = int(input()) + 1 while len(set(str(y)))<=3: y += 1 print(y) ```
3
355
A
Vasya and Digital Root
PROGRAMMING
1,100
[ "constructive algorithms", "implementation" ]
null
null
Vasya has recently found out what a digital root of a number is and he decided to share his knowledge with you. Let's assume that *S*(*n*) is the sum of digits of number *n*, for example, *S*(4098)<==<=4<=+<=0<=+<=9<=+<=8<==<=21. Then the digital root of number *n* equals to: 1. *dr*(*n*)<==<=*S*(*n*), if *S*(*n*)<=&lt;<=10; 1. *dr*(*n*)<==<=*dr*(<=*S*(*n*)<=), if *S*(*n*)<=≥<=10. For example, *dr*(4098)<=<==<=<=*dr*(21)<=<==<=<=3. Vasya is afraid of large numbers, so the numbers he works with are at most 101000. For all such numbers, he has proved that *dr*(*n*)<=<==<=<=*S*(<=*S*(<=*S*(<=*S*(*n*)<=)<=)<=) (*n*<=≤<=101000). Now Vasya wants to quickly find numbers with the given digital root. The problem is, he hasn't learned how to do that and he asked you to help him. You task is, given numbers *k* and *d*, find the number consisting of exactly *k* digits (the leading zeroes are not allowed), with digital root equal to *d*, or else state that such number does not exist.
The first line contains two integers *k* and *d* (1<=≤<=*k*<=≤<=1000; 0<=≤<=*d*<=≤<=9).
In a single line print either any number that meets the requirements (without the leading zeroes) or "No solution" (without the quotes), if the corresponding number does not exist. The chosen number must consist of exactly *k* digits. We assume that number 0 doesn't contain any leading zeroes.
[ "4 4\n", "5 1\n", "1 0\n" ]
[ "5881\n", "36172\n", "0\n" ]
For the first test sample *dr*(5881)  =  *dr*(22)  =  4. For the second test sample *dr*(36172)  =  *dr*(19)  =  *dr*(10)  =  1.
500
[ { "input": "4 4", "output": "5881" }, { "input": "5 1", "output": "36172" }, { "input": "1 0", "output": "0" }, { "input": "8 7", "output": "49722154" }, { "input": "487 0", "output": "No solution" }, { "input": "1000 5", "output": "8541939554067890866522280268745476436249986028349767396372181155840878549622667946850256234534972693110974918858266403731194206972478044933297639886527448596769215803533001453375065914421371731616055420973164037664278812596299678416020519508892847037891229851414508562230407367486468987019052183250172396304562086008837592345867873765321840214188417303688776985319268802181355472294386101622570417737061113209187893810568585166094583478900129912239498334853726870963804475563182775380744565964067602555515611220..." }, { "input": "22 9", "output": "1583569962049529809017" }, { "input": "1 1", "output": "1" }, { "input": "1 9", "output": "9" }, { "input": "13 5", "output": "1381199538344" }, { "input": "100 4", "output": "6334594910586850938286642284598905674550356974741186703111536643493065423553455569335256292313330478" }, { "input": "123 6", "output": "928024873067884441426263446866614165147002631091527531801777528825238463822318502518751375671158771476735217071878592158343" }, { "input": "1000 1", "output": "8286301124628812353504240076754144327937426329149605334362213339655339076564408659154706137278060590992944494591503606137350736487608756923833530346502466262820452589925067370165968733865814927433418675056573256434073937686361155637721866942352171450747045834987797118866710087297111065178077368748085213082452303815796793489599773148508108295035303578345492871662297456131736137780231762177312635688688714815857818196180724774924848693916003108422682889382923194020205691379066085156078824413573001257245677878..." }, { "input": "2 0", "output": "No solution" }, { "input": "734 9", "output": "5509849803670339733829077693143634799621955270111335907079347964026719040571586127009915057683769302171314977999063915868539391500563742827163274052101515706840652002966522709635011152141196057419086708927225560622675363856445980167733179728663010064912099615416068178748694469047950713834326493597331720572208847439692450327661109751421257198843242305082523510866664350537162158359215265173356615680034808012842300294492281197211603826994471586252822908597603049772690875861970190564793056757768783375525854981..." }, { "input": "678 8", "output": "3301967993506605598118564082793505826927835671912383741219911930496842130418974223636865915672261642456247377827650506657877850580145623499927271391838907804651235401527392426584047219626357010023552497909436550723659221336486898100975437974320483591226280567200180225706948265372905918038750624429412331582504280650041845010449084641487447573160867860208332424835101416924485616494780952529083292227777966546236453553361466209621076748915774965082618181512654546592160909206650552581723190500273752213154329310..." }, { "input": "955 7", "output": "4875434946733568640983465009954221247849488705968833681097920555785434899849497268074436910608289709905212840964404347113134616236366794383005890642796609027376389191650656756216171636192669456464756898600086886269167613161503734300581107122411830728903919402846291350458047685924037685489537178939190129043010338580479169957795695942333133962326316127076129681213167918954090336000635320714955444899171270809399782177230616239894234246885245402806465700760528496316658100834632585364274381823984214942419830421..." }, { "input": "893 3", "output": "3154491812688062338683413382839715419754844054478504300541293341098785797116419835470049101334759365561276155814822131363018164033585874216523127145546903121862283071300185033613164338905028463571111541628115658108609505120357131336651371062955497690723492519748325195227665653129911625684144804656937323976632567108677478936761775342496303735237936919652618323430255701996987753367609559178855599470625167628439986055634187527493497208780060336400261449926469512996188738133678473883670714775784527941804249702..." }, { "input": "998 2", "output": "8948712698877635315965401396781625629035528026219922557326466734622505808493494219669540192792500692387387200924494124219975316993592377253517258369463882172533672158172302951620486954085880606055358057621166471042557383036617719864238933843342304818076672889894622975857106353903546493307325157763617269195570831067239463586554245706859061059010215520785892192165179414199200952765077228454366556358805840526959104496983177402562569401945586771345953166346316987259989961516385311376707950154520512125143059966..." }, { "input": "960 6", "output": "7291446744949293530598651243840704118065364362420848463900543089429494124955982767375712583398715647208330285855809398453361266463042342917037983463277320070057956978767965467358862479678812136400444143489366786562672928727263605336304125661306952421127807059398289873947797478996261161224877129724944902005212399176751167053423457968483336961277157597291131065544350665072172392437597673561840137077580044817979332136630042866681837917711758227272499659805765131669208911408670581308412686469802437930679571593..." } ]
1,567,662,650
2,147,483,647
Python 3
OK
TESTS
20
139
512,000
###################################################################### # Write your code here import sys from math import * input = sys.stdin.readline #import resource #resource.setrlimit(resource.RLIMIT_STACK, [0x10000000, resource.RLIM_INFINITY]) #sys.setrecursionlimit(0x100000) # Write your code here RI = lambda : [int(x) for x in sys.stdin.readline().strip().split()] rw = lambda : input().strip().split() ls = lambda : list(input().strip()) # for strings to list of char from collections import defaultdict as df import heapq #heapq.heapify(li) heappush(li,4) heappop(li) #import random #random.shuffle(list) infinite = float('inf') ####################################################################### k,d=RI() if(d==0 and k>1): print("No solution") else: print(d,end="") for i in range(k-1): print(0,end="")
Title: Vasya and Digital Root Time Limit: None seconds Memory Limit: None megabytes Problem Description: Vasya has recently found out what a digital root of a number is and he decided to share his knowledge with you. Let's assume that *S*(*n*) is the sum of digits of number *n*, for example, *S*(4098)<==<=4<=+<=0<=+<=9<=+<=8<==<=21. Then the digital root of number *n* equals to: 1. *dr*(*n*)<==<=*S*(*n*), if *S*(*n*)<=&lt;<=10; 1. *dr*(*n*)<==<=*dr*(<=*S*(*n*)<=), if *S*(*n*)<=≥<=10. For example, *dr*(4098)<=<==<=<=*dr*(21)<=<==<=<=3. Vasya is afraid of large numbers, so the numbers he works with are at most 101000. For all such numbers, he has proved that *dr*(*n*)<=<==<=<=*S*(<=*S*(<=*S*(<=*S*(*n*)<=)<=)<=) (*n*<=≤<=101000). Now Vasya wants to quickly find numbers with the given digital root. The problem is, he hasn't learned how to do that and he asked you to help him. You task is, given numbers *k* and *d*, find the number consisting of exactly *k* digits (the leading zeroes are not allowed), with digital root equal to *d*, or else state that such number does not exist. Input Specification: The first line contains two integers *k* and *d* (1<=≤<=*k*<=≤<=1000; 0<=≤<=*d*<=≤<=9). Output Specification: In a single line print either any number that meets the requirements (without the leading zeroes) or "No solution" (without the quotes), if the corresponding number does not exist. The chosen number must consist of exactly *k* digits. We assume that number 0 doesn't contain any leading zeroes. Demo Input: ['4 4\n', '5 1\n', '1 0\n'] Demo Output: ['5881\n', '36172\n', '0\n'] Note: For the first test sample *dr*(5881)  =  *dr*(22)  =  4. For the second test sample *dr*(36172)  =  *dr*(19)  =  *dr*(10)  =  1.
```python ###################################################################### # Write your code here import sys from math import * input = sys.stdin.readline #import resource #resource.setrlimit(resource.RLIMIT_STACK, [0x10000000, resource.RLIM_INFINITY]) #sys.setrecursionlimit(0x100000) # Write your code here RI = lambda : [int(x) for x in sys.stdin.readline().strip().split()] rw = lambda : input().strip().split() ls = lambda : list(input().strip()) # for strings to list of char from collections import defaultdict as df import heapq #heapq.heapify(li) heappush(li,4) heappop(li) #import random #random.shuffle(list) infinite = float('inf') ####################################################################### k,d=RI() if(d==0 and k>1): print("No solution") else: print(d,end="") for i in range(k-1): print(0,end="") ```
3
136
A
Presents
PROGRAMMING
800
[ "implementation" ]
null
null
Little Petya very much likes gifts. Recently he has received a new laptop as a New Year gift from his mother. He immediately decided to give it to somebody else as what can be more pleasant than giving somebody gifts. And on this occasion he organized a New Year party at his place and invited *n* his friends there. If there's one thing Petya likes more that receiving gifts, that's watching others giving gifts to somebody else. Thus, he safely hid the laptop until the next New Year and made up his mind to watch his friends exchanging gifts while he does not participate in the process. He numbered all his friends with integers from 1 to *n*. Petya remembered that a friend number *i* gave a gift to a friend number *p**i*. He also remembered that each of his friends received exactly one gift. Now Petya wants to know for each friend *i* the number of a friend who has given him a gift.
The first line contains one integer *n* (1<=≤<=*n*<=≤<=100) — the quantity of friends Petya invited to the party. The second line contains *n* space-separated integers: the *i*-th number is *p**i* — the number of a friend who gave a gift to friend number *i*. It is guaranteed that each friend received exactly one gift. It is possible that some friends do not share Petya's ideas of giving gifts to somebody else. Those friends gave the gifts to themselves.
Print *n* space-separated integers: the *i*-th number should equal the number of the friend who gave a gift to friend number *i*.
[ "4\n2 3 4 1\n", "3\n1 3 2\n", "2\n1 2\n" ]
[ "4 1 2 3\n", "1 3 2\n", "1 2\n" ]
none
500
[ { "input": "4\n2 3 4 1", "output": "4 1 2 3" }, { "input": "3\n1 3 2", "output": "1 3 2" }, { "input": "2\n1 2", "output": "1 2" }, { "input": "1\n1", "output": "1" }, { "input": "10\n1 3 2 6 4 5 7 9 8 10", "output": "1 3 2 5 6 4 7 9 8 10" }, { "input": "5\n5 4 3 2 1", "output": "5 4 3 2 1" }, { "input": "20\n2 1 4 3 6 5 8 7 10 9 12 11 14 13 16 15 18 17 20 19", "output": "2 1 4 3 6 5 8 7 10 9 12 11 14 13 16 15 18 17 20 19" }, { "input": "21\n3 2 1 6 5 4 9 8 7 12 11 10 15 14 13 18 17 16 21 20 19", "output": "3 2 1 6 5 4 9 8 7 12 11 10 15 14 13 18 17 16 21 20 19" }, { "input": "10\n3 4 5 6 7 8 9 10 1 2", "output": "9 10 1 2 3 4 5 6 7 8" }, { "input": "8\n1 5 3 7 2 6 4 8", "output": "1 5 3 7 2 6 4 8" }, { "input": "50\n49 22 4 2 20 46 7 32 5 19 48 24 26 15 45 21 44 11 50 43 39 17 31 1 42 34 3 27 36 25 12 30 13 33 28 35 18 6 8 37 38 14 10 9 29 16 40 23 41 47", "output": "24 4 27 3 9 38 7 39 44 43 18 31 33 42 14 46 22 37 10 5 16 2 48 12 30 13 28 35 45 32 23 8 34 26 36 29 40 41 21 47 49 25 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9 33 28 13 34 36 30 12 7 1 14 8 5 16 10 22 21 42 32 2 31 39 27 6 11" }, { "input": "86\n39 11 20 31 28 76 29 64 35 21 41 71 12 82 5 37 80 73 38 26 79 75 23 15 59 45 47 6 3 62 50 49 51 22 2 65 86 60 70 42 74 17 1 30 55 44 8 66 81 27 57 77 43 13 54 32 72 46 48 56 14 34 78 52 36 85 24 19 69 83 25 61 7 4 84 33 63 58 18 40 68 10 67 9 16 53", "output": "43 35 29 74 15 28 73 47 84 82 2 13 54 61 24 85 42 79 68 3 10 34 23 67 71 20 50 5 7 44 4 56 76 62 9 65 16 19 1 80 11 40 53 46 26 58 27 59 32 31 33 64 86 55 45 60 51 78 25 38 72 30 77 8 36 48 83 81 69 39 12 57 18 41 22 6 52 63 21 17 49 14 70 75 66 37" }, { "input": "99\n65 78 56 98 33 24 61 40 29 93 1 64 57 22 25 52 67 95 50 3 31 15 90 68 71 83 38 36 6 46 89 26 4 87 14 88 72 37 23 43 63 12 80 96 5 34 73 86 9 48 92 62 99 10 16 20 66 27 28 2 82 70 30 94 49 8 84 69 18 60 58 59 44 39 21 7 91 76 54 19 75 85 74 47 55 32 97 77 51 13 35 79 45 42 11 41 17 81 53", "output": "11 60 20 33 45 29 76 66 49 54 95 42 90 35 22 55 97 69 80 56 75 14 39 6 15 32 58 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61 26 82 96 4 98 25 40 31 44 24 47 30 52 14 16 39 27 9 29 45 18 67 63 37 43 90 66 19 69 88 22 92 77 34 42 73 80 56 64 20 35 15 33 86", "output": "47 33 48 59 11 9 24 1 73 36 10 16 21 69 97 70 27 76 83 95 51 86 35 65 61 56 72 42 74 67 63 37 98 89 96 28 79 31 71 62 14 90 80 64 75 17 66 12 15 40 46 68 45 43 29 93 7 8 20 6 55 26 78 94 13 82 77 2 84 22 5 18 91 23 4 30 88 54 32 92 50 57 41 25 34 99 39 85 52 81 44 87 53 3 19 58 49 60 38" }, { "input": "99\n12 99 88 13 7 19 74 47 23 90 16 29 26 11 58 60 64 98 37 18 82 67 72 46 51 85 17 92 87 20 77 36 78 71 57 35 80 54 73 15 14 62 97 45 31 79 94 56 76 96 28 63 8 44 38 86 49 2 52 66 61 59 10 43 55 50 22 34 83 53 95 40 81 21 30 42 27 3 5 41 1 70 69 25 93 48 65 6 24 89 91 33 39 68 9 4 32 84 75", "output": "81 58 78 96 79 88 5 53 95 63 14 1 4 41 40 11 27 20 6 30 74 67 9 89 84 13 77 51 12 75 45 97 92 68 36 32 19 55 93 72 80 76 64 54 44 24 8 86 57 66 25 59 70 38 65 48 35 15 62 16 61 42 52 17 87 60 22 94 83 82 34 23 39 7 99 49 31 33 46 37 73 21 69 98 26 56 29 3 90 10 91 28 85 47 71 50 43 18 2" }, { "input": "99\n20 79 26 75 99 69 98 47 93 62 18 42 43 38 90 66 67 8 13 84 76 58 81 60 64 46 56 23 78 17 86 36 19 52 85 39 48 27 96 49 37 95 5 31 10 24 12 1 80 35 92 33 16 68 57 54 32 29 45 88 72 77 4 87 97 89 59 3 21 22 61 94 83 15 44 34 70 91 55 9 51 50 73 11 14 6 40 7 63 25 2 82 41 65 28 74 71 30 53", "output": "48 91 68 63 43 86 88 18 80 45 84 47 19 85 74 53 30 11 33 1 69 70 28 46 90 3 38 95 58 98 44 57 52 76 50 32 41 14 36 87 93 12 13 75 59 26 8 37 40 82 81 34 99 56 79 27 55 22 67 24 71 10 89 25 94 16 17 54 6 77 97 61 83 96 4 21 62 29 2 49 23 92 73 20 35 31 64 60 66 15 78 51 9 72 42 39 65 7 5" }, { "input": "99\n74 20 9 1 60 85 65 13 4 25 40 99 5 53 64 3 36 31 73 44 55 50 45 63 98 51 68 6 47 37 71 82 88 34 84 18 19 12 93 58 86 7 11 46 90 17 33 27 81 69 42 59 56 32 95 52 76 61 96 62 78 43 66 21 49 97 75 14 41 72 89 16 30 79 22 23 15 83 91 38 48 2 87 26 28 80 94 70 54 92 57 10 8 35 67 77 29 24 39", "output": "4 82 16 9 13 28 42 93 3 92 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75 51 12 18 68 56 95 3 80 83 84 29 24 61 71 78 59 96 20 85 90 28 45 36 38 97 1 49 40 98 44 67 13 73 72 91 47 10 30 54 35 42 4 2 92 26 64 60 53 21 5 82 46 32 55 66 16 89 99 65 25", "output": "65 82 46 81 89 26 11 28 15 76 34 41 71 3 8 95 24 42 1 57 88 20 31 51 99 84 14 60 50 77 18 92 7 4 79 62 6 63 5 67 37 80 12 69 61 91 75 19 66 25 40 9 87 78 93 44 35 30 55 86 52 36 21 85 98 94 70 43 13 22 53 73 72 32 39 29 16 54 23 47 27 90 48 49 58 33 38 10 96 59 74 83 2 17 45 56 64 68 97" }, { "input": "99\n86 25 50 51 62 39 41 67 44 20 45 14 80 88 66 7 36 59 13 84 78 58 96 75 2 43 48 47 69 12 19 98 22 38 28 55 11 76 68 46 53 70 85 34 16 33 91 30 8 40 74 60 94 82 87 32 37 4 5 10 89 73 90 29 35 26 23 57 27 65 24 3 9 83 77 72 6 31 15 92 93 79 64 18 63 42 56 1 52 97 17 81 71 21 49 99 54 95 61", "output": "88 25 72 58 59 77 16 49 73 60 37 30 19 12 79 45 91 84 31 10 94 33 67 71 2 66 69 35 64 48 78 56 46 44 65 17 57 34 6 50 7 86 26 9 11 40 28 27 95 3 4 89 41 97 36 87 68 22 18 52 99 5 85 83 70 15 8 39 29 42 93 76 62 51 24 38 75 21 82 13 92 54 74 20 43 1 55 14 61 63 47 80 81 53 98 23 90 32 96" }, { "input": "100\n66 44 99 15 43 79 28 33 88 90 49 68 82 38 9 74 4 58 29 81 31 94 10 42 89 21 63 40 62 61 18 6 84 72 48 25 67 69 71 85 98 34 83 70 65 78 91 77 93 41 23 24 87 11 55 12 59 73 36 97 7 14 26 39 30 27 45 20 50 17 53 2 57 47 95 56 75 19 37 96 16 35 8 3 76 60 13 86 5 32 64 80 46 51 54 100 1 22 52 92", "output": "97 72 84 17 89 32 61 83 15 23 54 56 87 62 4 81 70 31 78 68 26 98 51 52 36 63 66 7 19 65 21 90 8 42 82 59 79 14 64 28 50 24 5 2 67 93 74 35 11 69 94 99 71 95 55 76 73 18 57 86 30 29 27 91 45 1 37 12 38 44 39 34 58 16 77 85 48 46 6 92 20 13 43 33 40 88 53 9 25 10 47 100 49 22 75 80 60 41 3 96" }, { "input": "99\n3 73 32 37 25 15 93 63 85 8 91 78 80 5 39 48 46 7 83 70 23 96 9 29 77 53 30 20 56 50 13 45 21 76 87 99 65 31 16 18 14 72 51 28 43 2 81 34 38 40 66 54 74 26 71 4 61 17 58 24 22 33 49 36 42 11 12 55 60 27 62 90 79 92 94 68 1 52 84 41 86 35 69 75 47 10 64 88 97 98 67 19 89 95 59 82 57 44 6", "output": "77 46 1 56 14 99 18 10 23 86 66 67 31 41 6 39 58 40 92 28 33 61 21 60 5 54 70 44 24 27 38 3 62 48 82 64 4 49 15 50 80 65 45 98 32 17 85 16 63 30 43 78 26 52 68 29 97 59 95 69 57 71 8 87 37 51 91 76 83 20 55 42 2 53 84 34 25 12 73 13 47 96 19 79 9 81 35 88 93 72 11 74 7 75 94 22 89 90 36" }, { "input": "100\n100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1", "output": "100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1" } ]
1,690,886,144
2,147,483,647
Python 3
OK
TESTS
101
92
0
line1 = input() line2 = input() numOfPeople = int(line1) originalGifts = list(map(int, line2.split(' '))) arrayGifts = originalGifts.copy() def convert(list): s = [str(i) for i in list] res = " ".join(s) return(res) for i in range(numOfPeople): arrayGifts[originalGifts[i] - 1] = i + 1 print(convert(arrayGifts))
Title: Presents Time Limit: None seconds Memory Limit: None megabytes Problem Description: Little Petya very much likes gifts. Recently he has received a new laptop as a New Year gift from his mother. He immediately decided to give it to somebody else as what can be more pleasant than giving somebody gifts. And on this occasion he organized a New Year party at his place and invited *n* his friends there. If there's one thing Petya likes more that receiving gifts, that's watching others giving gifts to somebody else. Thus, he safely hid the laptop until the next New Year and made up his mind to watch his friends exchanging gifts while he does not participate in the process. He numbered all his friends with integers from 1 to *n*. Petya remembered that a friend number *i* gave a gift to a friend number *p**i*. He also remembered that each of his friends received exactly one gift. Now Petya wants to know for each friend *i* the number of a friend who has given him a gift. Input Specification: The first line contains one integer *n* (1<=≤<=*n*<=≤<=100) — the quantity of friends Petya invited to the party. The second line contains *n* space-separated integers: the *i*-th number is *p**i* — the number of a friend who gave a gift to friend number *i*. It is guaranteed that each friend received exactly one gift. It is possible that some friends do not share Petya's ideas of giving gifts to somebody else. Those friends gave the gifts to themselves. Output Specification: Print *n* space-separated integers: the *i*-th number should equal the number of the friend who gave a gift to friend number *i*. Demo Input: ['4\n2 3 4 1\n', '3\n1 3 2\n', '2\n1 2\n'] Demo Output: ['4 1 2 3\n', '1 3 2\n', '1 2\n'] Note: none
```python line1 = input() line2 = input() numOfPeople = int(line1) originalGifts = list(map(int, line2.split(' '))) arrayGifts = originalGifts.copy() def convert(list): s = [str(i) for i in list] res = " ".join(s) return(res) for i in range(numOfPeople): arrayGifts[originalGifts[i] - 1] = i + 1 print(convert(arrayGifts)) ```
3
1
A
Theatre Square
PROGRAMMING
1,000
[ "math" ]
A. Theatre Square
1
256
Theatre Square in the capital city of Berland has a rectangular shape with the size *n*<=×<=*m* meters. On the occasion of the city's anniversary, a decision was taken to pave the Square with square granite flagstones. Each flagstone is of the size *a*<=×<=*a*. What is the least number of flagstones needed to pave the Square? It's allowed to cover the surface larger than the Theatre Square, but the Square has to be covered. It's not allowed to break the flagstones. The sides of flagstones should be parallel to the sides of the Square.
The input contains three positive integer numbers in the first line: *n*,<=<=*m* and *a* (1<=≤<=<=*n*,<=*m*,<=*a*<=≤<=109).
Write the needed number of flagstones.
[ "6 6 4\n" ]
[ "4\n" ]
none
0
[ { "input": "6 6 4", "output": "4" }, { "input": "1 1 1", "output": "1" }, { "input": "2 1 1", "output": "2" }, { "input": "1 2 1", "output": "2" }, { "input": "2 2 1", "output": "4" }, { "input": "2 1 2", "output": "1" }, { "input": "1 1 3", "output": "1" }, { "input": "2 3 4", "output": "1" }, { "input": "1000000000 1000000000 1", "output": "1000000000000000000" }, { "input": "12 13 4", "output": "12" }, { "input": "222 332 5", "output": "3015" }, { "input": "1000 1000 10", "output": "10000" }, { "input": "1001 1000 10", "output": "10100" }, { "input": "100 10001 1000000000", "output": "1" }, { "input": "1000000000 1000000000 1000000000", "output": "1" }, { "input": "1000000000 1000000000 999999999", "output": "4" }, { "input": "1000000000 1000000000 192", "output": "27126743055556" }, { "input": "1000000000 987654321 1", "output": "987654321000000000" }, { "input": "456784567 1000000000 51", "output": "175618850864484" }, { "input": "39916800 134217728 40320", "output": "3295710" } ]
1,663,414,317
2,147,483,647
Python 3
OK
TESTS
20
46
0
n,m,a=map(int,input().split()) if n%a==0: w=n//a else: w=n//a+1 if m%a==0: w*=m//a else: w*=m//a+1 print(w)
Title: Theatre Square Time Limit: 1 seconds Memory Limit: 256 megabytes Problem Description: Theatre Square in the capital city of Berland has a rectangular shape with the size *n*<=×<=*m* meters. On the occasion of the city's anniversary, a decision was taken to pave the Square with square granite flagstones. Each flagstone is of the size *a*<=×<=*a*. What is the least number of flagstones needed to pave the Square? It's allowed to cover the surface larger than the Theatre Square, but the Square has to be covered. It's not allowed to break the flagstones. The sides of flagstones should be parallel to the sides of the Square. Input Specification: The input contains three positive integer numbers in the first line: *n*,<=<=*m* and *a* (1<=≤<=<=*n*,<=*m*,<=*a*<=≤<=109). Output Specification: Write the needed number of flagstones. Demo Input: ['6 6 4\n'] Demo Output: ['4\n'] Note: none
```python n,m,a=map(int,input().split()) if n%a==0: w=n//a else: w=n//a+1 if m%a==0: w*=m//a else: w*=m//a+1 print(w) ```
3.977
154
A
Hometask
PROGRAMMING
1,600
[ "greedy" ]
null
null
Sergey attends lessons of the *N*-ish language. Each lesson he receives a hometask. This time the task is to translate some sentence to the *N*-ish language. Sentences of the *N*-ish language can be represented as strings consisting of lowercase Latin letters without spaces or punctuation marks. Sergey totally forgot about the task until half an hour before the next lesson and hastily scribbled something down. But then he recollected that in the last lesson he learned the grammar of *N*-ish. The spelling rules state that *N*-ish contains some "forbidden" pairs of letters: such letters can never occur in a sentence next to each other. Also, the order of the letters doesn't matter (for example, if the pair of letters "ab" is forbidden, then any occurrences of substrings "ab" and "ba" are also forbidden). Also, each pair has different letters and each letter occurs in no more than one forbidden pair. Now Sergey wants to correct his sentence so that it doesn't contain any "forbidden" pairs of letters that stand next to each other. However, he is running out of time, so he decided to simply cross out some letters from the sentence. What smallest number of letters will he have to cross out? When a letter is crossed out, it is "removed" so that the letters to its left and right (if they existed), become neighboring. For example, if we cross out the first letter from the string "aba", we get the string "ba", and if we cross out the second letter, we get "aa".
The first line contains a non-empty string *s*, consisting of lowercase Latin letters — that's the initial sentence in *N*-ish, written by Sergey. The length of string *s* doesn't exceed 105. The next line contains integer *k* (0<=≤<=*k*<=≤<=13) — the number of forbidden pairs of letters. Next *k* lines contain descriptions of forbidden pairs of letters. Each line contains exactly two different lowercase Latin letters without separators that represent the forbidden pairs. It is guaranteed that each letter is included in no more than one pair.
Print the single number — the smallest number of letters that need to be removed to get a string without any forbidden pairs of neighboring letters. Please note that the answer always exists as it is always possible to remove all letters.
[ "ababa\n1\nab\n", "codeforces\n2\ndo\ncs\n" ]
[ "2\n", "1\n" ]
In the first sample you should remove two letters b. In the second sample you should remove the second or the third letter. The second restriction doesn't influence the solution.
500
[ { "input": "ababa\n1\nab", "output": "2" }, { "input": "codeforces\n2\ndo\ncs", "output": "1" }, { "input": "nllnrlrnll\n1\nrl", "output": "1" }, { "input": "aludfbjtwnkgnfl\n1\noy", "output": "0" }, { "input": "pgpgppgggpbbnnn\n2\npg\nnb", "output": "7" }, { "input": "eepeeeeppppppeepeppe\n1\npe", "output": "10" }, { "input": "vefneyamdzoytemupniw\n13\nve\nfg\noi\nan\nck\nwx\npq\nml\nbt\nud\nrz\nsj\nhy", "output": "1" }, { "input": "drvwfaacccwnncfwuptsorrrvvvrgdzytrwweeexzyyyxuwuuk\n13\nld\nac\nnp\nrv\nmo\njh\ngb\nuw\nfq\nst\nkx\nzy\nei", "output": "11" }, { "input": "pninnihzipirpbdggrdglzdpbldtzihgbzdnrgznbpdanhnlag\n4\nli\nqh\nad\nbp", "output": "4" }, { "input": "mbmxuuuuxuuuuhhooooxxxuxxxuxuuxuuuxxjvjvjjjjvvvjjjjjvvjvjjjvvvjjvjjvvvjjjvjvvjvjjjjjmmbmbbbbbmbbbbmm\n5\nmb\nho\nxu\njv\nyp", "output": "37" }, { "input": "z\n0", "output": "0" }, { "input": "t\n13\nzx\nig\nyq\nbd\nph\nar\nne\nwo\ntk\njl\ncv\nfs\nmu", "output": "0" }, { "input": "rbnxovfcwkdjctdjfskaozjzthlcntuaoiavnbsfpuzxyvhfbxetvryvwrqetokdshadxpxijtpkrqvghsrejgnqntwiypiglzmp\n13\njr\nnf\nyk\ntq\nwe\nil\ngu\npb\naz\nxm\nhc\nvd\nso", "output": "0" }, { "input": "yynynnyyyiynyniiiinyynniiyiyyyniyniyynyyyynyynnniiiniyyniiyyiynyiynnnnyiiyiyniyyininiyiiiyynnnyiyinnnnyiinnnnnyninyinyynynyiynyyyiyinyynnyyinynyinininyniniynniiyyiiyy\n1\nni", "output": "28" }, { "input": "eowsgsewestwsootoetteoeeeetwssesstswegswetwetggewsteeteoggetssetseegwteswtteowsgowwoowetwgogewssogwgtttgwwoeotgoswwwwswsgeeoowwwwetwgeswsgwtsgewswtstwgggtegsssggsstwsoggeoseotgwswwggtggweewwgwegggoteweessotsewttwseosgegswwsoewgwstetwteegseowgwoteegwttwwowtwtosweeggweeeeoeesgseetgwgtswteotgwewetssggteewteeetetweeotwttwoeswggoosogoeg\n3\nst\neo\ngw", "output": "49" }, { "input": "ttspivgoupgupvgpusvppogsseueusuglpiugssviuutlvgvugtpovuvspvpipggooplgvgugpogvesppulovugsvuougveiivgvslllviogpvtolepglguuellotpvgevspvoiiggiiplppgosuguvtstttpielteuglopgeoeeuivtptggltoltpgliviotsospvitupiopisoetupvvspooilsopslpoloptigstspoiuutiuvvuvlpplvioitsuvlpvtleveslslovolloogsgpvpepgueesslgtssttuupieppsstoeopeeppvopglpvtvuugpsuoplttsgstsiplpiugtoolisgpeeiuvutstpulvtllipsvsslvoepooslvteoevipvpsuoiippeuegoovoovstlvgsstitsivlvseguoolpslueuepgeooltviovpveeivolssloieuugovguoleulvssopetlpivpgoigtv\n1\ngs", "output": "8" }, { "input": "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n1\nab", "output": "75" } ]
1,491,200,199
2,147,483,647
PyPy 3
OK
TESTS
42
1,058
102,092,800
S = input() M = int( input() ) banned = set( input() for i in range( M ) ) buff = set() for s in banned: if not ( s[ : : -1 ] in banned ): buff.add( s[ : : -1 ] ) banned.update( buff ) dp = [ [ 1e9 for i in range( 26 ) ] for j in range( len( S ) + 1 ) ] for i in range( 26 ): dp[ 0 ][ i ] = 0 for i in range( len( S ) ): for j in range( 26 ): if dp[ i ][ j ] == 1e9: continue if not ( chr( ord( 'a' ) + j ) + S[ i ] in banned ): dp[ i + 1 ][ ord( S[ i ] ) - ord( 'a' ) ] = min( dp[ i + 1 ][ ord( S[ i ] ) - ord( 'a' ) ], dp[ i ][ j ] ) dp[ i + 1 ][ j ] = min( dp[ i + 1 ][ j ], dp[ i ][ j ] + 1 ) print( min( dp[ len( S ) ] ) )
Title: Hometask Time Limit: None seconds Memory Limit: None megabytes Problem Description: Sergey attends lessons of the *N*-ish language. Each lesson he receives a hometask. This time the task is to translate some sentence to the *N*-ish language. Sentences of the *N*-ish language can be represented as strings consisting of lowercase Latin letters without spaces or punctuation marks. Sergey totally forgot about the task until half an hour before the next lesson and hastily scribbled something down. But then he recollected that in the last lesson he learned the grammar of *N*-ish. The spelling rules state that *N*-ish contains some "forbidden" pairs of letters: such letters can never occur in a sentence next to each other. Also, the order of the letters doesn't matter (for example, if the pair of letters "ab" is forbidden, then any occurrences of substrings "ab" and "ba" are also forbidden). Also, each pair has different letters and each letter occurs in no more than one forbidden pair. Now Sergey wants to correct his sentence so that it doesn't contain any "forbidden" pairs of letters that stand next to each other. However, he is running out of time, so he decided to simply cross out some letters from the sentence. What smallest number of letters will he have to cross out? When a letter is crossed out, it is "removed" so that the letters to its left and right (if they existed), become neighboring. For example, if we cross out the first letter from the string "aba", we get the string "ba", and if we cross out the second letter, we get "aa". Input Specification: The first line contains a non-empty string *s*, consisting of lowercase Latin letters — that's the initial sentence in *N*-ish, written by Sergey. The length of string *s* doesn't exceed 105. The next line contains integer *k* (0<=≤<=*k*<=≤<=13) — the number of forbidden pairs of letters. Next *k* lines contain descriptions of forbidden pairs of letters. Each line contains exactly two different lowercase Latin letters without separators that represent the forbidden pairs. It is guaranteed that each letter is included in no more than one pair. Output Specification: Print the single number — the smallest number of letters that need to be removed to get a string without any forbidden pairs of neighboring letters. Please note that the answer always exists as it is always possible to remove all letters. Demo Input: ['ababa\n1\nab\n', 'codeforces\n2\ndo\ncs\n'] Demo Output: ['2\n', '1\n'] Note: In the first sample you should remove two letters b. In the second sample you should remove the second or the third letter. The second restriction doesn't influence the solution.
```python S = input() M = int( input() ) banned = set( input() for i in range( M ) ) buff = set() for s in banned: if not ( s[ : : -1 ] in banned ): buff.add( s[ : : -1 ] ) banned.update( buff ) dp = [ [ 1e9 for i in range( 26 ) ] for j in range( len( S ) + 1 ) ] for i in range( 26 ): dp[ 0 ][ i ] = 0 for i in range( len( S ) ): for j in range( 26 ): if dp[ i ][ j ] == 1e9: continue if not ( chr( ord( 'a' ) + j ) + S[ i ] in banned ): dp[ i + 1 ][ ord( S[ i ] ) - ord( 'a' ) ] = min( dp[ i + 1 ][ ord( S[ i ] ) - ord( 'a' ) ], dp[ i ][ j ] ) dp[ i + 1 ][ j ] = min( dp[ i + 1 ][ j ], dp[ i ][ j ] + 1 ) print( min( dp[ len( S ) ] ) ) ```
3
59
A
Word
PROGRAMMING
800
[ "implementation", "strings" ]
A. Word
2
256
Vasya is very upset that many people on the Net mix uppercase and lowercase letters in one word. That's why he decided to invent an extension for his favorite browser that would change the letters' register in every word so that it either only consisted of lowercase letters or, vice versa, only of uppercase ones. At that as little as possible letters should be changed in the word. For example, the word HoUse must be replaced with house, and the word ViP — with VIP. If a word contains an equal number of uppercase and lowercase letters, you should replace all the letters with lowercase ones. For example, maTRIx should be replaced by matrix. Your task is to use the given method on one given word.
The first line contains a word *s* — it consists of uppercase and lowercase Latin letters and possesses the length from 1 to 100.
Print the corrected word *s*. If the given word *s* has strictly more uppercase letters, make the word written in the uppercase register, otherwise - in the lowercase one.
[ "HoUse\n", "ViP\n", "maTRIx\n" ]
[ "house\n", "VIP\n", "matrix\n" ]
none
500
[ { "input": "HoUse", "output": "house" }, { "input": "ViP", "output": "VIP" }, { "input": "maTRIx", "output": "matrix" }, { "input": "BNHWpnpawg", "output": "bnhwpnpawg" }, { "input": "VTYGP", "output": "VTYGP" }, { "input": "CHNenu", "output": "chnenu" }, { "input": "ERPZGrodyu", "output": "erpzgrodyu" }, { "input": "KSXBXWpebh", "output": "KSXBXWPEBH" }, { "input": "qvxpqullmcbegsdskddortcvxyqlbvxmmkhevovnezubvpvnrcajpxraeaxizgaowtfkzywvhnbgzsxbhkaipcmoumtikkiyyaiv", "output": "qvxpqullmcbegsdskddortcvxyqlbvxmmkhevovnezubvpvnrcajpxraeaxizgaowtfkzywvhnbgzsxbhkaipcmoumtikkiyyaiv" }, { "input": "Amnhaxtaopjzrkqlbroiyipitndczpunwygstmzevgyjdzyanxkdqnvgkikfabwouwkkbzuiuvgvxgpizsvqsbwepktpdrgdkmfd", "output": "amnhaxtaopjzrkqlbroiyipitndczpunwygstmzevgyjdzyanxkdqnvgkikfabwouwkkbzuiuvgvxgpizsvqsbwepktpdrgdkmfd" }, { "input": "ISAGFJFARYFBLOPQDSHWGMCNKMFTLVFUGNJEWGWNBLXUIATXEkqiettmmjgydwcpafqrppdsrrrtguinqbgmzzfqwonkpgpcwenv", "output": "isagfjfaryfblopqdshwgmcnkmftlvfugnjewgwnblxuiatxekqiettmmjgydwcpafqrppdsrrrtguinqbgmzzfqwonkpgpcwenv" }, { "input": "XHRPXZEGHSOCJPICUIXSKFUZUPYTSGJSDIYBCMNMNBPNDBXLXBzhbfnqvwcffvrdhtickyqhupmcehlsyvncqmfhautvxudqdhgg", "output": "xhrpxzeghsocjpicuixskfuzupytsgjsdiybcmnmnbpndbxlxbzhbfnqvwcffvrdhtickyqhupmcehlsyvncqmfhautvxudqdhgg" }, { "input": "RJIQZMJCIMSNDBOHBRAWIENODSALETAKGKPYUFGVEFGCBRENZGAdkcetqjljtmttlonpekcovdzebzdkzggwfsxhapmjkdbuceak", "output": "RJIQZMJCIMSNDBOHBRAWIENODSALETAKGKPYUFGVEFGCBRENZGADKCETQJLJTMTTLONPEKCOVDZEBZDKZGGWFSXHAPMJKDBUCEAK" }, { "input": "DWLWOBHNMMGTFOLFAECKBRNNGLYLYDXTGTVRLMEESZOIUATZZZXUFUZDLSJXMEVRTESSFBWLNZZCLCQWEVNNUCXYVHNGNXHCBDFw", "output": "DWLWOBHNMMGTFOLFAECKBRNNGLYLYDXTGTVRLMEESZOIUATZZZXUFUZDLSJXMEVRTESSFBWLNZZCLCQWEVNNUCXYVHNGNXHCBDFW" }, { "input": "NYCNHJWGBOCOTSPETKKHVWFGAQYNHOVJWJHCIEFOUQZXOYUIEQDZALFKTEHTVDBVJMEUBJUBCMNVPWGDPNCHQHZJRCHYRFPVIGUB", "output": "NYCNHJWGBOCOTSPETKKHVWFGAQYNHOVJWJHCIEFOUQZXOYUIEQDZALFKTEHTVDBVJMEUBJUBCMNVPWGDPNCHQHZJRCHYRFPVIGUB" }, { "input": "igxoixiecetohtgjgbqzvlaobkhstejxdklghowtvwunnnvauriohuspsdmpzckprwajyxldoyckgjivjpmbfqtszmtocovxwge", "output": "igxoixiecetohtgjgbqzvlaobkhstejxdklghowtvwunnnvauriohuspsdmpzckprwajyxldoyckgjivjpmbfqtszmtocovxwge" }, { "input": "Ykkekrsqolzryiwsmdlnbmfautxxxauoojrddvwklgnlyrfcvhorrzbmtcrvpaypqhcffdqhwziipyyskcmztjprjqvmzzqhqnw", "output": "ykkekrsqolzryiwsmdlnbmfautxxxauoojrddvwklgnlyrfcvhorrzbmtcrvpaypqhcffdqhwziipyyskcmztjprjqvmzzqhqnw" }, { "input": "YQOMLKYAORUQQUCQZCDYMIVDHGWZFFRMUVTAWCHERFPMNRYRIkgqrciokgajamehmcxgerpudvsqyonjonsxgbnefftzmygncks", "output": "yqomlkyaoruqqucqzcdymivdhgwzffrmuvtawcherfpmnryrikgqrciokgajamehmcxgerpudvsqyonjonsxgbnefftzmygncks" }, { "input": "CDOZDPBVVVHNBJVBYHEOXWFLJKRWJCAJMIFCOZWWYFKVWOGTVJcuusigdqfkumewjtdyitveeiaybwrhomrwmpdipjwiuxfnwuz", "output": "CDOZDPBVVVHNBJVBYHEOXWFLJKRWJCAJMIFCOZWWYFKVWOGTVJCUUSIGDQFKUMEWJTDYITVEEIAYBWRHOMRWMPDIPJWIUXFNWUZ" }, { "input": "WHIUVEXHVOOIJIDVJVPQUBJMEVPMPDKQWJKFBZSGSKUXMIPPMJWuckzcpxosodcjaaakvlxpbiigsiauviilylnnqlyucziihqg", "output": "WHIUVEXHVOOIJIDVJVPQUBJMEVPMPDKQWJKFBZSGSKUXMIPPMJWUCKZCPXOSODCJAAAKVLXPBIIGSIAUVIILYLNNQLYUCZIIHQG" }, { "input": "VGHUNFOXKETUYMZDJNGTAOIOANYXSGYNFOGOFFLDAWEUKYFOZXCJTCAFXZYLQZERYZLRSQXYQGAPCSUDPMEYTNCTTTMFAGVDWBO", "output": "VGHUNFOXKETUYMZDJNGTAOIOANYXSGYNFOGOFFLDAWEUKYFOZXCJTCAFXZYLQZERYZLRSQXYQGAPCSUDPMEYTNCTTTMFAGVDWBO" }, { "input": "EDUANHCQDOCJHFONTTSWBUJSTTIXBIXMAIUFSGFLXWAYIURTVAVZPYQDLAWIGCLMPHXCEFCJPFAAHXVNGQUFNHADAIUAZIDMHDd", "output": "EDUANHCQDOCJHFONTTSWBUJSTTIXBIXMAIUFSGFLXWAYIURTVAVZPYQDLAWIGCLMPHXCEFCJPFAAHXVNGQUFNHADAIUAZIDMHDD" }, { "input": "EBWOVSNLYTWWXrnovgugogtjahnmatomubebyxakas", "output": "ebwovsnlytwwxrnovgugogtjahnmatomubebyxakas" }, { "input": "AORNNDKTRLRVGDPXJKXFTPFpopuzrlqumrxssskvbm", "output": "AORNNDKTRLRVGDPXJKXFTPFPOPUZRLQUMRXSSSKVBM" }, { "input": "DBBZJCWQEVGYHEEUHJAWRHBDPsnplijbwtdibqrrheebfxqcvn", "output": "dbbzjcwqevgyheeuhjawrhbdpsnplijbwtdibqrrheebfxqcvn" }, { "input": "t", "output": "t" }, { "input": "N", "output": "N" }, { "input": "kv", "output": "kv" }, { "input": "Ur", "output": "ur" }, { "input": "CN", "output": "CN" } ]
1,695,441,244
2,147,483,647
Python 3
OK
TESTS
30
92
0
string = input() # get input from judge. list = list(string) # convert string into a list capList = [] # empty list for holding upper letters lowList = [] # empty list for holding lower letters for i in range(len(string)): if list[i].isupper(): # if letter is capital, add to cap list. capList.append(list[i]) else: # else, add letter to low list. lowList.append(list[i]) if len(capList) > len(lowList): # if cap list is bigger than low list output = string.upper() # make the input string all caps. else: # otherwise make the string lower case. output = string.lower() print(output) # print the output.
Title: Word Time Limit: 2 seconds Memory Limit: 256 megabytes Problem Description: Vasya is very upset that many people on the Net mix uppercase and lowercase letters in one word. That's why he decided to invent an extension for his favorite browser that would change the letters' register in every word so that it either only consisted of lowercase letters or, vice versa, only of uppercase ones. At that as little as possible letters should be changed in the word. For example, the word HoUse must be replaced with house, and the word ViP — with VIP. If a word contains an equal number of uppercase and lowercase letters, you should replace all the letters with lowercase ones. For example, maTRIx should be replaced by matrix. Your task is to use the given method on one given word. Input Specification: The first line contains a word *s* — it consists of uppercase and lowercase Latin letters and possesses the length from 1 to 100. Output Specification: Print the corrected word *s*. If the given word *s* has strictly more uppercase letters, make the word written in the uppercase register, otherwise - in the lowercase one. Demo Input: ['HoUse\n', 'ViP\n', 'maTRIx\n'] Demo Output: ['house\n', 'VIP\n', 'matrix\n'] Note: none
```python string = input() # get input from judge. list = list(string) # convert string into a list capList = [] # empty list for holding upper letters lowList = [] # empty list for holding lower letters for i in range(len(string)): if list[i].isupper(): # if letter is capital, add to cap list. capList.append(list[i]) else: # else, add letter to low list. lowList.append(list[i]) if len(capList) > len(lowList): # if cap list is bigger than low list output = string.upper() # make the input string all caps. else: # otherwise make the string lower case. output = string.lower() print(output) # print the output. ```
3.977
6
A
Triangle
PROGRAMMING
900
[ "brute force", "geometry" ]
A. Triangle
2
64
Johnny has a younger sister Anne, who is very clever and smart. As she came home from the kindergarten, she told his brother about the task that her kindergartener asked her to solve. The task was just to construct a triangle out of four sticks of different colours. Naturally, one of the sticks is extra. It is not allowed to break the sticks or use their partial length. Anne has perfectly solved this task, now she is asking Johnny to do the same. The boy answered that he would cope with it without any difficulty. However, after a while he found out that different tricky things can occur. It can happen that it is impossible to construct a triangle of a positive area, but it is possible to construct a degenerate triangle. It can be so, that it is impossible to construct a degenerate triangle even. As Johnny is very lazy, he does not want to consider such a big amount of cases, he asks you to help him.
The first line of the input contains four space-separated positive integer numbers not exceeding 100 — lengthes of the sticks.
Output TRIANGLE if it is possible to construct a non-degenerate triangle. Output SEGMENT if the first case cannot take place and it is possible to construct a degenerate triangle. Output IMPOSSIBLE if it is impossible to construct any triangle. Remember that you are to use three sticks. It is not allowed to break the sticks or use their partial length.
[ "4 2 1 3\n", "7 2 2 4\n", "3 5 9 1\n" ]
[ "TRIANGLE\n", "SEGMENT\n", "IMPOSSIBLE\n" ]
none
0
[ { "input": "4 2 1 3", "output": "TRIANGLE" }, { "input": "7 2 2 4", "output": "SEGMENT" }, { "input": "3 5 9 1", "output": "IMPOSSIBLE" }, { "input": "3 1 5 1", "output": "IMPOSSIBLE" }, { "input": "10 10 10 10", "output": "TRIANGLE" }, { "input": "11 5 6 11", "output": "TRIANGLE" }, { "input": "1 1 1 1", "output": "TRIANGLE" }, { "input": "10 20 30 40", "output": "TRIANGLE" }, { "input": "45 25 5 15", "output": "IMPOSSIBLE" }, { "input": "20 5 8 13", "output": "TRIANGLE" }, { "input": "10 30 7 20", "output": "SEGMENT" }, { "input": "3 2 3 2", "output": "TRIANGLE" }, { "input": "70 10 100 30", "output": "SEGMENT" }, { "input": "4 8 16 2", "output": "IMPOSSIBLE" }, { "input": "3 3 3 10", "output": "TRIANGLE" }, { "input": "1 5 5 5", "output": "TRIANGLE" }, { "input": "13 25 12 1", "output": "SEGMENT" }, { "input": "10 100 7 3", "output": "SEGMENT" }, { "input": "50 1 50 100", "output": "TRIANGLE" }, { "input": "50 1 100 49", "output": "SEGMENT" }, { "input": "49 51 100 1", "output": "SEGMENT" }, { "input": "5 11 2 25", "output": "IMPOSSIBLE" }, { "input": "91 50 9 40", "output": "IMPOSSIBLE" }, { "input": "27 53 7 97", "output": "IMPOSSIBLE" }, { "input": "51 90 24 8", "output": "IMPOSSIBLE" }, { "input": "3 5 1 1", "output": "IMPOSSIBLE" }, { "input": "13 49 69 15", "output": "IMPOSSIBLE" }, { "input": "16 99 9 35", "output": "IMPOSSIBLE" }, { "input": "27 6 18 53", "output": "IMPOSSIBLE" }, { "input": "57 88 17 8", "output": "IMPOSSIBLE" }, { "input": "95 20 21 43", "output": "IMPOSSIBLE" }, { "input": "6 19 32 61", "output": "IMPOSSIBLE" }, { "input": "100 21 30 65", "output": "IMPOSSIBLE" }, { "input": "85 16 61 9", "output": "IMPOSSIBLE" }, { "input": "5 6 19 82", "output": "IMPOSSIBLE" }, { "input": "1 5 1 3", "output": "IMPOSSIBLE" }, { "input": "65 10 36 17", "output": "IMPOSSIBLE" }, { "input": "81 64 9 7", "output": "IMPOSSIBLE" }, { "input": "11 30 79 43", "output": "IMPOSSIBLE" }, { "input": "1 1 5 3", "output": "IMPOSSIBLE" }, { "input": "21 94 61 31", "output": "IMPOSSIBLE" }, { "input": "49 24 9 74", "output": "IMPOSSIBLE" }, { "input": "11 19 5 77", "output": "IMPOSSIBLE" }, { "input": "52 10 19 71", "output": "SEGMENT" }, { "input": "2 3 7 10", "output": "SEGMENT" }, { "input": "1 2 6 3", "output": "SEGMENT" }, { "input": "2 6 1 8", "output": "SEGMENT" }, { "input": "1 2 4 1", "output": "SEGMENT" }, { "input": "4 10 6 2", "output": "SEGMENT" }, { "input": "2 10 7 3", "output": "SEGMENT" }, { "input": "5 2 3 9", "output": "SEGMENT" }, { "input": "6 1 4 10", "output": "SEGMENT" }, { "input": "10 6 4 1", "output": "SEGMENT" }, { "input": "3 2 9 1", "output": "SEGMENT" }, { "input": "22 80 29 7", "output": "SEGMENT" }, { "input": "2 6 3 9", "output": "SEGMENT" }, { "input": "3 1 2 1", "output": "SEGMENT" }, { "input": "3 4 7 1", "output": "SEGMENT" }, { "input": "8 4 3 1", "output": "SEGMENT" }, { "input": "2 8 3 5", "output": "SEGMENT" }, { "input": "4 1 2 1", "output": "SEGMENT" }, { "input": "8 1 3 2", "output": "SEGMENT" }, { "input": "6 2 1 8", "output": "SEGMENT" }, { "input": "3 3 3 6", "output": "TRIANGLE" }, { "input": "3 6 3 3", "output": "TRIANGLE" }, { "input": "4 10 4 4", "output": "TRIANGLE" }, { "input": "1 1 2 1", "output": "TRIANGLE" }, { "input": "3 3 3 6", "output": "TRIANGLE" }, { "input": "5 4 5 5", "output": "TRIANGLE" }, { "input": "8 7 8 8", "output": "TRIANGLE" }, { "input": "3 3 3 1", "output": "TRIANGLE" }, { "input": "1 1 6 6", "output": "TRIANGLE" }, { "input": "1 9 1 9", "output": "TRIANGLE" }, { "input": "7 2 2 7", "output": "TRIANGLE" }, { "input": "7 2 3 2", "output": "TRIANGLE" }, { "input": "4 4 10 10", "output": "TRIANGLE" }, { "input": "7 7 10 7", "output": "TRIANGLE" }, { "input": "4 4 4 5", "output": "TRIANGLE" }, { "input": "1 10 9 2", "output": "TRIANGLE" }, { "input": "1 8 2 7", "output": "TRIANGLE" }, { "input": "4 3 2 8", "output": "TRIANGLE" }, { "input": "5 9 5 3", "output": "TRIANGLE" }, { "input": "4 10 3 5", "output": "TRIANGLE" } ]
1,552,206,600
2,147,483,647
Python 3
OK
TESTS
83
218
307,200
s = list(map(int, input().split(' '))) if s[0] < s[1] + s[2] and s[1] < s[0] + s[2] and s[2] < s[0] + s[1] or s[0] < s[1] + s[3] and s[1] < s[0] + s[3] and s[3] < s[0] + s[1] or s[0] < s[2] + s[3] and s[2] < s[0] + s[3] and s[3] < s[0] + s[2] or s[1] < s[2] + s[3] and s[2] < s[1] + s[3] and s[3] < s[1] + s[2]: print('TRIANGLE') elif s[0] == s[1] + s[2] or s[1] == s[0] + s[2] or s[2] == s[0] + s[1] or s[0] == s[1] + s[3] or s[1] == s[0] + s[3] or s[3] == s[0] + s[1] or s[0] == s[2] + s[3] or s[2] == s[0] + s[3] or s[3] == s[0] + s[2] or s[1] == s[2] + s[3] or s[2] == s[1] + s[3] or s[3] == s[1] + s[2]: print('SEGMENT') else: print('IMPOSSIBLE')
Title: Triangle Time Limit: 2 seconds Memory Limit: 64 megabytes Problem Description: Johnny has a younger sister Anne, who is very clever and smart. As she came home from the kindergarten, she told his brother about the task that her kindergartener asked her to solve. The task was just to construct a triangle out of four sticks of different colours. Naturally, one of the sticks is extra. It is not allowed to break the sticks or use their partial length. Anne has perfectly solved this task, now she is asking Johnny to do the same. The boy answered that he would cope with it without any difficulty. However, after a while he found out that different tricky things can occur. It can happen that it is impossible to construct a triangle of a positive area, but it is possible to construct a degenerate triangle. It can be so, that it is impossible to construct a degenerate triangle even. As Johnny is very lazy, he does not want to consider such a big amount of cases, he asks you to help him. Input Specification: The first line of the input contains four space-separated positive integer numbers not exceeding 100 — lengthes of the sticks. Output Specification: Output TRIANGLE if it is possible to construct a non-degenerate triangle. Output SEGMENT if the first case cannot take place and it is possible to construct a degenerate triangle. Output IMPOSSIBLE if it is impossible to construct any triangle. Remember that you are to use three sticks. It is not allowed to break the sticks or use their partial length. Demo Input: ['4 2 1 3\n', '7 2 2 4\n', '3 5 9 1\n'] Demo Output: ['TRIANGLE\n', 'SEGMENT\n', 'IMPOSSIBLE\n'] Note: none
```python s = list(map(int, input().split(' '))) if s[0] < s[1] + s[2] and s[1] < s[0] + s[2] and s[2] < s[0] + s[1] or s[0] < s[1] + s[3] and s[1] < s[0] + s[3] and s[3] < s[0] + s[1] or s[0] < s[2] + s[3] and s[2] < s[0] + s[3] and s[3] < s[0] + s[2] or s[1] < s[2] + s[3] and s[2] < s[1] + s[3] and s[3] < s[1] + s[2]: print('TRIANGLE') elif s[0] == s[1] + s[2] or s[1] == s[0] + s[2] or s[2] == s[0] + s[1] or s[0] == s[1] + s[3] or s[1] == s[0] + s[3] or s[3] == s[0] + s[1] or s[0] == s[2] + s[3] or s[2] == s[0] + s[3] or s[3] == s[0] + s[2] or s[1] == s[2] + s[3] or s[2] == s[1] + s[3] or s[3] == s[1] + s[2]: print('SEGMENT') else: print('IMPOSSIBLE') ```
3.943211
260
A
Adding Digits
PROGRAMMING
1,400
[ "implementation", "math" ]
null
null
Vasya has got two number: *a* and *b*. However, Vasya finds number *a* too short. So he decided to repeat the operation of lengthening number *a* *n* times. One operation of lengthening a number means adding exactly one digit to the number (in the decimal notation) to the right provided that the resulting number is divisible by Vasya's number *b*. If it is impossible to obtain the number which is divisible by *b*, then the lengthening operation cannot be performed. Your task is to help Vasya and print the number he can get after applying the lengthening operation to number *a* *n* times.
The first line contains three integers: *a*,<=*b*,<=*n* (1<=≤<=*a*,<=*b*,<=*n*<=≤<=105).
In a single line print the integer without leading zeros, which Vasya can get when he applies the lengthening operations to number *a* *n* times. If no such number exists, then print number -1. If there are multiple possible answers, print any of them.
[ "5 4 5\n", "12 11 1\n", "260 150 10\n" ]
[ "524848\n", "121\n", "-1\n" ]
none
500
[ { "input": "5 4 5", "output": "524848" }, { "input": "12 11 1", "output": "121" }, { "input": "260 150 10", "output": "-1" }, { "input": "78843 5684 42717", "output": "-1" }, { "input": "93248 91435 1133", "output": "-1" }, { "input": "100000 10 64479", "output": "1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000..." }, { "input": "99999 21 73839", "output": "9999990000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000..." }, { "input": "99991 623 36438", "output": "9999150000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000..." }, { "input": "99999 334 94854", "output": "9999960000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000..." }, { "input": "99252 9827 84849", "output": "9925270000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000..." }, { "input": "99313 9833 10561", "output": "9931330000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000..." }, { "input": "94885 55815 11417", "output": "9488550000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000..." }, { "input": "99492 58525 53481", "output": "9949250000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000..." }, { "input": "99858 28531 79193", "output": "9985850000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000..." }, { "input": "99136 47208 42607", "output": "9913680000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000..." }, { "input": "63270 19953 5555", "output": "-1" }, { "input": "10240 128 100000", "output": "1024000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000..." }, { "input": "12 11 3", "output": "12100" }, { "input": "14 12 99998", "output": "1440000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000..." }, { "input": "1 11 3", "output": "1100" }, { "input": "3 40 1", "output": "-1" }, { "input": "150 100 10", "output": "1500000000000" }, { "input": "5 10 1", "output": "50" }, { "input": "1 15 10", "output": "15000000000" }, { "input": "3 13 2", "output": "390" } ]
1,607,004,396
2,147,483,647
Python 3
OK
TESTS
25
108
204,800
a,b,n = [int(x) for x in input().split()] s = str(a) check = 1 for i in range(10): if int(s+str(i))%b==0: s += str(i) check = 0 break if check: print(-1) else: print(s+'0'*(n-1))
Title: Adding Digits Time Limit: None seconds Memory Limit: None megabytes Problem Description: Vasya has got two number: *a* and *b*. However, Vasya finds number *a* too short. So he decided to repeat the operation of lengthening number *a* *n* times. One operation of lengthening a number means adding exactly one digit to the number (in the decimal notation) to the right provided that the resulting number is divisible by Vasya's number *b*. If it is impossible to obtain the number which is divisible by *b*, then the lengthening operation cannot be performed. Your task is to help Vasya and print the number he can get after applying the lengthening operation to number *a* *n* times. Input Specification: The first line contains three integers: *a*,<=*b*,<=*n* (1<=≤<=*a*,<=*b*,<=*n*<=≤<=105). Output Specification: In a single line print the integer without leading zeros, which Vasya can get when he applies the lengthening operations to number *a* *n* times. If no such number exists, then print number -1. If there are multiple possible answers, print any of them. Demo Input: ['5 4 5\n', '12 11 1\n', '260 150 10\n'] Demo Output: ['524848\n', '121\n', '-1\n'] Note: none
```python a,b,n = [int(x) for x in input().split()] s = str(a) check = 1 for i in range(10): if int(s+str(i))%b==0: s += str(i) check = 0 break if check: print(-1) else: print(s+'0'*(n-1)) ```
3
454
A
Little Pony and Crystal Mine
PROGRAMMING
800
[ "implementation" ]
null
null
Twilight Sparkle once got a crystal from the Crystal Mine. A crystal of size *n* (*n* is odd; *n*<=&gt;<=1) is an *n*<=×<=*n* matrix with a diamond inscribed into it. You are given an odd integer *n*. You need to draw a crystal of size *n*. The diamond cells of the matrix should be represented by character "D". All other cells of the matrix should be represented by character "*". Look at the examples to understand what you need to draw.
The only line contains an integer *n* (3<=≤<=*n*<=≤<=101; *n* is odd).
Output a crystal of size *n*.
[ "3\n", "5\n", "7\n" ]
[ "*D*\nDDD\n*D*\n", "**D**\n*DDD*\nDDDDD\n*DDD*\n**D**\n", "***D***\n**DDD**\n*DDDDD*\nDDDDDDD\n*DDDDD*\n**DDD**\n***D***\n" ]
none
500
[ { "input": "3", "output": "*D*\nDDD\n*D*" }, { "input": "5", "output": "**D**\n*DDD*\nDDDDD\n*DDD*\n**D**" }, { "input": "7", "output": "***D***\n**DDD**\n*DDDDD*\nDDDDDDD\n*DDDDD*\n**DDD**\n***D***" }, { "input": "11", "output": "*****D*****\n****DDD****\n***DDDDD***\n**DDDDDDD**\n*DDDDDDDDD*\nDDDDDDDDDDD\n*DDDDDDDDD*\n**DDDDDDD**\n***DDDDD***\n****DDD****\n*****D*****" }, { "input": "15", "output": "*******D*******\n******DDD******\n*****DDDDD*****\n****DDDDDDD****\n***DDDDDDDDD***\n**DDDDDDDDDDD**\n*DDDDDDDDDDDDD*\nDDDDDDDDDDDDDDD\n*DDDDDDDDDDDDD*\n**DDDDDDDDDDD**\n***DDDDDDDDD***\n****DDDDDDD****\n*****DDDDD*****\n******DDD******\n*******D*******" }, { "input": "21", "output": "**********D**********\n*********DDD*********\n********DDDDD********\n*******DDDDDDD*******\n******DDDDDDDDD******\n*****DDDDDDDDDDD*****\n****DDDDDDDDDDDDD****\n***DDDDDDDDDDDDDDD***\n**DDDDDDDDDDDDDDDDD**\n*DDDDDDDDDDDDDDDDDDD*\nDDDDDDDDDDDDDDDDDDDDD\n*DDDDDDDDDDDDDDDDDDD*\n**DDDDDDDDDDDDDDDDD**\n***DDDDDDDDDDDDDDD***\n****DDDDDDDDDDDDD****\n*****DDDDDDDDDDD*****\n******DDDDDDDDD******\n*******DDDDDDD*******\n********DDDDD********\n*********DDD*********\n**********D**********" }, { "input": "33", "output": "****************D****************\n***************DDD***************\n**************DDDDD**************\n*************DDDDDDD*************\n************DDDDDDDDD************\n***********DDDDDDDDDDD***********\n**********DDDDDDDDDDDDD**********\n*********DDDDDDDDDDDDDDD*********\n********DDDDDDDDDDDDDDDDD********\n*******DDDDDDDDDDDDDDDDDDD*******\n******DDDDDDDDDDDDDDDDDDDDD******\n*****DDDDDDDDDDDDDDDDDDDDDDD*****\n****DDDDDDDDDDDDDDDDDDDDDDDDD****\n***DDDDDDDDDDDDDDDDDDDDDDDDDDD***\n**DDDDDDDDDDDDDDDDDDD..." }, { "input": "57", "output": "****************************D****************************\n***************************DDD***************************\n**************************DDDDD**************************\n*************************DDDDDDD*************************\n************************DDDDDDDDD************************\n***********************DDDDDDDDDDD***********************\n**********************DDDDDDDDDDDDD**********************\n*********************DDDDDDDDDDDDDDD*********************\n********************DDDDDDDDDDDDDDDDD**..." }, { "input": "69", "output": "**********************************D**********************************\n*********************************DDD*********************************\n********************************DDDDD********************************\n*******************************DDDDDDD*******************************\n******************************DDDDDDDDD******************************\n*****************************DDDDDDDDDDD*****************************\n****************************DDDDDDDDDDDDD****************************\n**************..." }, { "input": "81", "output": "****************************************D****************************************\n***************************************DDD***************************************\n**************************************DDDDD**************************************\n*************************************DDDDDDD*************************************\n************************************DDDDDDDDD************************************\n***********************************DDDDDDDDDDD***********************************\n*************..." }, { "input": "91", "output": "*********************************************D*********************************************\n********************************************DDD********************************************\n*******************************************DDDDD*******************************************\n******************************************DDDDDDD******************************************\n*****************************************DDDDDDDDD*****************************************\n****************************************DDDDDD..." }, { "input": "101", "output": "**************************************************D**************************************************\n*************************************************DDD*************************************************\n************************************************DDDDD************************************************\n***********************************************DDDDDDD***********************************************\n**********************************************DDDDDDDDD********************************************..." } ]
1,611,089,702
2,147,483,647
Python 3
OK
TESTS
12
62
0
line = int(input()) mid_pt = (line+1)//2 for i in range(1,line+1): if i<mid_pt: print("*"*(mid_pt-i)+"D"*(2*i-1)+"*"*(mid_pt-i)) else: print("*"*(i-mid_pt)+"D"*(2*(line+1-i)-1)+"*"*(i-mid_pt))
Title: Little Pony and Crystal Mine Time Limit: None seconds Memory Limit: None megabytes Problem Description: Twilight Sparkle once got a crystal from the Crystal Mine. A crystal of size *n* (*n* is odd; *n*<=&gt;<=1) is an *n*<=×<=*n* matrix with a diamond inscribed into it. You are given an odd integer *n*. You need to draw a crystal of size *n*. The diamond cells of the matrix should be represented by character "D". All other cells of the matrix should be represented by character "*". Look at the examples to understand what you need to draw. Input Specification: The only line contains an integer *n* (3<=≤<=*n*<=≤<=101; *n* is odd). Output Specification: Output a crystal of size *n*. Demo Input: ['3\n', '5\n', '7\n'] Demo Output: ['*D*\nDDD\n*D*\n', '**D**\n*DDD*\nDDDDD\n*DDD*\n**D**\n', '***D***\n**DDD**\n*DDDDD*\nDDDDDDD\n*DDDDD*\n**DDD**\n***D***\n'] Note: none
```python line = int(input()) mid_pt = (line+1)//2 for i in range(1,line+1): if i<mid_pt: print("*"*(mid_pt-i)+"D"*(2*i-1)+"*"*(mid_pt-i)) else: print("*"*(i-mid_pt)+"D"*(2*(line+1-i)-1)+"*"*(i-mid_pt)) ```
3
761
B
Dasha and friends
PROGRAMMING
1,300
[ "brute force", "implementation", "math" ]
null
null
Running with barriers on the circle track is very popular in the country where Dasha lives, so no wonder that on her way to classes she saw the following situation: The track is the circle with length *L*, in distinct points of which there are *n* barriers. Athlete always run the track in counterclockwise direction if you look on him from above. All barriers are located at integer distance from each other along the track. Her friends the parrot Kefa and the leopard Sasha participated in competitions and each of them ran one lap. Each of the friends started from some integral point on the track. Both friends wrote the distance from their start along the track to each of the *n* barriers. Thus, each of them wrote *n* integers in the ascending order, each of them was between 0 and *L*<=-<=1, inclusively. There are several tracks in the country, all of them have same length and same number of barriers, but the positions of the barriers can differ among different tracks. Now Dasha is interested if it is possible that Kefa and Sasha ran the same track or they participated on different tracks. Write the program which will check that Kefa's and Sasha's tracks coincide (it means that one can be obtained from the other by changing the start position). Note that they always run the track in one direction — counterclockwise, if you look on a track from above.
The first line contains two integers *n* and *L* (1<=≤<=*n*<=≤<=50, *n*<=≤<=*L*<=≤<=100) — the number of barriers on a track and its length. The second line contains *n* distinct integers in the ascending order — the distance from Kefa's start to each barrier in the order of its appearance. All integers are in the range from 0 to *L*<=-<=1 inclusively. The second line contains *n* distinct integers in the ascending order — the distance from Sasha's start to each barrier in the order of its overcoming. All integers are in the range from 0 to *L*<=-<=1 inclusively.
Print "YES" (without quotes), if Kefa and Sasha ran the coinciding tracks (it means that the position of all barriers coincides, if they start running from the same points on the track). Otherwise print "NO" (without quotes).
[ "3 8\n2 4 6\n1 5 7\n", "4 9\n2 3 5 8\n0 1 3 6\n", "2 4\n1 3\n1 2\n" ]
[ "YES\n", "YES\n", "NO\n" ]
The first test is analyzed in the statement.
1,000
[ { "input": "3 8\n2 4 6\n1 5 7", "output": "YES" }, { "input": "4 9\n2 3 5 8\n0 1 3 6", "output": "YES" }, { "input": "2 4\n1 3\n1 2", "output": "NO" }, { "input": "5 9\n0 2 5 6 7\n1 3 6 7 8", "output": "YES" }, { "input": "5 60\n7 26 27 40 59\n14 22 41 42 55", "output": "YES" }, { "input": "20 29\n0 1 2 4 5 8 9 12 14 15 17 19 20 21 22 23 25 26 27 28\n0 2 4 5 6 7 8 10 11 12 13 14 15 16 18 19 22 23 26 28", "output": "YES" }, { "input": "35 41\n0 1 2 3 4 5 6 7 9 10 11 12 13 14 18 19 20 21 22 23 24 25 26 28 30 31 32 33 34 35 36 37 38 39 40\n0 1 2 3 4 5 7 8 9 10 11 12 16 17 18 19 20 21 22 23 24 26 28 29 30 31 32 33 34 35 36 37 38 39 40", "output": "YES" }, { "input": "40 63\n0 2 3 4 5 6 9 10 12 15 17 19 23 25 26 27 28 29 30 31 33 34 36 37 38 39 40 43 45 49 50 52 53 54 55 57 58 60 61 62\n1 2 3 4 5 8 10 14 15 17 18 19 20 22 23 25 26 27 28 30 31 32 33 34 37 38 40 43 46 47 51 53 54 55 56 57 58 59 61 62", "output": "NO" }, { "input": "50 97\n1 2 3 4 6 9 10 11 12 13 14 21 22 23 24 25 28 29 30 31 32 33 34 36 37 40 41 45 53 56 59 64 65 69 70 71 72 73 74 77 81 84 85 86 87 89 91 92 95 96\n0 1 2 3 6 10 13 14 15 16 18 20 21 24 25 27 28 29 30 33 35 36 37 38 39 40 47 48 49 50 51 54 55 56 57 58 59 60 62 63 66 67 71 79 82 85 90 91 95 96", "output": "NO" }, { "input": "50 100\n0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 88 90 92 94 96 98\n1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 87 89 91 93 95 97 99", "output": "YES" }, { "input": "1 2\n0\n0", "output": "YES" }, { "input": "1 2\n0\n1", "output": "YES" }, { "input": "1 2\n1\n0", "output": "YES" }, { "input": "1 2\n1\n1", "output": "YES" }, { "input": "1 1\n0\n0", "output": "YES" }, { "input": "5 12\n2 3 4 8 10\n2 3 4 8 10", "output": "YES" }, { "input": "1 18\n3\n10", "output": "YES" }, { "input": "1 75\n65\n8", "output": "YES" }, { "input": "2 16\n4 13\n2 11", "output": "YES" }, { "input": "2 95\n45 59\n3 84", "output": "YES" }, { "input": "3 53\n29 43 50\n29 43 50", "output": "YES" }, { "input": "3 60\n39 46 51\n43 50 55", "output": "YES" }, { "input": "4 4\n0 1 2 3\n0 1 2 3", "output": "YES" }, { "input": "4 93\n45 48 50 90\n20 68 71 73", "output": "YES" }, { "input": "6 18\n0 3 8 11 15 16\n2 7 10 14 15 17", "output": "YES" }, { "input": "6 87\n0 1 21 31 34 66\n11 12 32 42 45 77", "output": "YES" }, { "input": "7 26\n0 3 9 13 14 19 20\n4 7 13 17 18 23 24", "output": "YES" }, { "input": "7 81\n0 12 19 24 25 35 59\n1 8 13 14 24 48 70", "output": "YES" }, { "input": "8 20\n0 1 2 3 5 6 14 15\n1 2 10 11 16 17 18 19", "output": "YES" }, { "input": "8 94\n0 8 11 27 38 54 57 89\n1 33 38 46 49 65 76 92", "output": "YES" }, { "input": "9 18\n1 3 6 8 11 12 13 16 17\n0 2 5 6 7 10 11 13 15", "output": "YES" }, { "input": "9 90\n10 11 27 33 34 55 63 84 87\n9 12 25 26 42 48 49 70 78", "output": "YES" }, { "input": "10 42\n4 9 10 14 15 16 19 33 36 40\n0 14 17 21 27 32 33 37 38 39", "output": "YES" }, { "input": "10 73\n4 5 15 19 20 25 28 42 57 58\n3 4 9 12 26 41 42 61 62 72", "output": "YES" }, { "input": "11 11\n0 1 2 3 4 5 6 7 8 9 10\n0 1 2 3 4 5 6 7 8 9 10", "output": "YES" }, { "input": "11 57\n1 4 27 30 31 35 37 41 50 52 56\n22 25 26 30 32 36 45 47 51 53 56", "output": "YES" }, { "input": "12 73\n5 9 11 20 25 36 40 41 44 48 56 60\n12 16 18 27 32 43 47 48 51 55 63 67", "output": "YES" }, { "input": "12 95\n1 37 42 46 56 58 59 62 64 71 76 80\n2 18 54 59 63 73 75 76 79 81 88 93", "output": "YES" }, { "input": "13 29\n2 5 6 9 12 17 18 19 20 21 22 24 27\n0 3 6 11 12 13 14 15 16 18 21 25 28", "output": "YES" }, { "input": "13 90\n9 18 23 30 31 36 39 44 58 59 74 82 87\n1 6 18 27 32 39 40 45 48 53 67 68 83", "output": "YES" }, { "input": "14 29\n1 2 3 4 5 7 9 12 13 20 21 22 23 24\n0 3 4 11 12 13 14 15 21 22 23 24 25 27", "output": "YES" }, { "input": "14 94\n7 8 9 21 34 35 36 37 38 43 46 52 84 93\n2 3 4 16 29 30 31 32 33 38 41 47 79 88", "output": "YES" }, { "input": "15 19\n1 2 3 4 5 6 7 8 9 10 11 13 14 16 17\n0 1 2 3 4 5 6 7 8 9 10 12 13 15 16", "output": "YES" }, { "input": "15 27\n2 3 4 5 6 7 8 9 10 11 12 14 17 24 26\n2 3 4 5 6 7 8 9 10 11 12 14 17 24 26", "output": "YES" }, { "input": "16 28\n3 5 6 7 9 10 11 12 13 14 17 19 20 25 26 27\n0 5 6 7 11 13 14 15 17 18 19 20 21 22 25 27", "output": "YES" }, { "input": "16 93\n5 6 10 11 13 14 41 43 46 61 63 70 74 79 83 92\n0 9 15 16 20 21 23 24 51 53 56 71 73 80 84 89", "output": "YES" }, { "input": "17 49\n2 5 11 12 16 18 19 21 22 24 36 37 38 39 40 44 47\n1 7 8 12 14 15 17 18 20 32 33 34 35 36 40 43 47", "output": "YES" }, { "input": "17 86\n16 17 25 33 39 41 50 51 54 56 66 70 72 73 77 80 85\n3 9 11 20 21 24 26 36 40 42 43 47 50 55 72 73 81", "output": "YES" }, { "input": "18 20\n0 1 2 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19\n0 1 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19", "output": "YES" }, { "input": "18 82\n0 5 10 13 14 16 21 28 29 30 44 46 61 64 69 71 77 78\n0 5 8 9 11 16 23 24 25 39 41 56 59 64 66 72 73 77", "output": "YES" }, { "input": "19 25\n0 1 2 3 5 7 9 10 12 13 16 17 18 19 20 21 22 23 24\n0 3 4 5 6 7 8 9 10 11 12 13 14 15 17 19 21 22 24", "output": "YES" }, { "input": "19 91\n5 17 18 20 22 25 26 31 32 33 43 47 54 61 62 64 77 80 87\n4 5 6 16 20 27 34 35 37 50 53 60 69 81 82 84 86 89 90", "output": "YES" }, { "input": "20 53\n2 6 8 9 16 17 20 21 22 23 25 26 35 36 38 39 44 46 47 50\n4 5 8 9 10 11 13 14 23 24 26 27 32 34 35 38 43 47 49 50", "output": "YES" }, { "input": "21 44\n0 1 3 4 6 7 8 9 10 11 12 15 17 18 21 22 27 29 34 36 42\n1 7 9 10 12 13 15 16 17 18 19 20 21 24 26 27 30 31 36 38 43", "output": "YES" }, { "input": "21 94\n3 5 6 8 9 15 16 20 28 31 35 39 49 50 53 61 71 82 85 89 90\n6 17 20 24 25 32 34 35 37 38 44 45 49 57 60 64 68 78 79 82 90", "output": "YES" }, { "input": "22 24\n0 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 22 23\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 21 22 23", "output": "YES" }, { "input": "22 85\n3 5 7 14 18 21 25 32 38 41 53 58 61 62 66 70 71 73 75 76 79 83\n3 6 18 23 26 27 31 35 36 38 40 41 44 48 53 55 57 64 68 71 75 82", "output": "YES" }, { "input": "23 38\n0 2 4 5 7 8 12 13 14 16 17 18 21 22 24 27 28 30 31 32 35 36 37\n0 1 2 3 5 7 8 10 11 15 16 17 19 20 21 24 25 27 30 31 33 34 35", "output": "YES" }, { "input": "23 93\n1 3 5 10 19 22 26 27 30 35 39 53 55 60 66 67 75 76 77 80 82 89 90\n9 11 16 22 23 31 32 33 36 38 45 46 50 52 54 59 68 71 75 76 79 84 88", "output": "YES" }, { "input": "24 37\n1 4 5 6 8 11 12 13 15 16 17 19 20 21 23 26 27 28 30 31 33 34 35 36\n0 3 4 5 7 8 10 11 12 13 15 18 19 20 22 25 26 27 29 30 31 33 34 35", "output": "YES" }, { "input": "24 94\n9 10 13 14 16 18 19 22 24 29 32 35 48 55 57 63 64 69 72 77 78 85 90 92\n1 7 8 13 16 21 22 29 34 36 47 48 51 52 54 56 57 60 62 67 70 73 86 93", "output": "YES" }, { "input": "25 45\n0 1 2 4 6 7 8 9 13 14 17 19 21 22 23 25 28 29 30 31 34 36 38 39 42\n1 3 4 5 7 10 11 12 13 16 18 20 21 24 27 28 29 31 33 34 35 36 40 41 44", "output": "YES" }, { "input": "25 72\n1 2 6 8 9 11 15 18 19 20 26 29 31 33 34 40 41 43 45 48 58 60 68 69 71\n0 6 9 11 13 14 20 21 23 25 28 38 40 48 49 51 53 54 58 60 61 63 67 70 71", "output": "YES" }, { "input": "26 47\n0 2 5 7 8 9 10 12 13 14 20 22 23 25 27 29 31 32 33 35 36 37 38 42 44 45\n0 2 4 6 8 9 10 12 13 14 15 19 21 22 24 26 29 31 32 33 34 36 37 38 44 46", "output": "YES" }, { "input": "26 99\n0 1 13 20 21 22 25 26 27 28 32 39 44 47 56 58 60 62 71 81 83 87 89 93 94 98\n6 8 12 14 18 19 23 24 25 37 44 45 46 49 50 51 52 56 63 68 71 80 82 84 86 95", "output": "YES" }, { "input": "27 35\n0 2 3 4 5 6 7 8 10 11 12 13 14 15 16 17 19 20 21 23 26 27 29 30 31 32 33\n0 1 2 3 5 7 8 9 10 11 12 13 15 16 17 18 19 20 21 22 24 25 26 28 31 32 34", "output": "YES" }, { "input": "27 51\n1 2 4 7 8 11 13 17 20 21 23 24 25 28 29 30 34 35 37 38 40 43 45 46 47 48 50\n0 1 2 4 6 7 9 12 13 16 18 22 25 26 28 29 30 33 34 35 39 40 42 43 45 48 50", "output": "YES" }, { "input": "28 38\n1 4 5 7 8 9 10 11 12 14 15 16 18 19 20 21 22 23 24 25 28 29 30 32 33 35 36 37\n0 1 2 3 4 5 6 9 10 11 13 14 16 17 18 20 23 24 26 27 28 29 30 31 33 34 35 37", "output": "YES" }, { "input": "28 67\n0 1 2 3 6 9 10 15 18 22 24 25 30 35 36 38 39 47 48 49 51 53 55 56 58 62 63 64\n4 7 11 13 14 19 24 25 27 28 36 37 38 40 42 44 45 47 51 52 53 56 57 58 59 62 65 66", "output": "YES" }, { "input": "29 29\n0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28\n0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28", "output": "YES" }, { "input": "29 93\n1 2 11 13 18 21 27 28 30 38 41 42 46 54 55 56 60 61 63 64 66 69 71 72 77 81 83 89 90\n2 10 11 12 16 17 19 20 22 25 27 28 33 37 39 45 46 50 51 60 62 67 70 76 77 79 87 90 91", "output": "YES" }, { "input": "30 63\n0 2 3 5 6 7 8 10 13 18 19 21 22 23 26 32 35 37 38 39 40 41 43 44 49 51 53 54 58 61\n0 2 3 5 6 7 8 10 13 18 19 21 22 23 26 32 35 37 38 39 40 41 43 44 49 51 53 54 58 61", "output": "YES" }, { "input": "30 91\n1 2 3 7 8 9 13 16 17 19 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1,486,745,520
2,147,483,647
Python 3
OK
TESTS
134
93
4,608,000
n,l = map(int,input().split()) kefa = list(map(int,input().split())) sasha = list(map(int,input().split())) diff1 = [kefa[i+1] - kefa[i] if i != n - 1 else l - kefa[-1] + kefa[0] for i in range(n) ] diff2 = [sasha[i+1] - sasha[i] if i != n - 1 else l - sasha[-1] + sasha[0] for i in range(n) ] def rotation(pos): for i in range(n): if diff2[(i+pos)%n] != diff1[i]: return False return True for i in range(n): if(rotation(i)): print("YES") exit() print("NO")
Title: Dasha and friends Time Limit: None seconds Memory Limit: None megabytes Problem Description: Running with barriers on the circle track is very popular in the country where Dasha lives, so no wonder that on her way to classes she saw the following situation: The track is the circle with length *L*, in distinct points of which there are *n* barriers. Athlete always run the track in counterclockwise direction if you look on him from above. All barriers are located at integer distance from each other along the track. Her friends the parrot Kefa and the leopard Sasha participated in competitions and each of them ran one lap. Each of the friends started from some integral point on the track. Both friends wrote the distance from their start along the track to each of the *n* barriers. Thus, each of them wrote *n* integers in the ascending order, each of them was between 0 and *L*<=-<=1, inclusively. There are several tracks in the country, all of them have same length and same number of barriers, but the positions of the barriers can differ among different tracks. Now Dasha is interested if it is possible that Kefa and Sasha ran the same track or they participated on different tracks. Write the program which will check that Kefa's and Sasha's tracks coincide (it means that one can be obtained from the other by changing the start position). Note that they always run the track in one direction — counterclockwise, if you look on a track from above. Input Specification: The first line contains two integers *n* and *L* (1<=≤<=*n*<=≤<=50, *n*<=≤<=*L*<=≤<=100) — the number of barriers on a track and its length. The second line contains *n* distinct integers in the ascending order — the distance from Kefa's start to each barrier in the order of its appearance. All integers are in the range from 0 to *L*<=-<=1 inclusively. The second line contains *n* distinct integers in the ascending order — the distance from Sasha's start to each barrier in the order of its overcoming. All integers are in the range from 0 to *L*<=-<=1 inclusively. Output Specification: Print "YES" (without quotes), if Kefa and Sasha ran the coinciding tracks (it means that the position of all barriers coincides, if they start running from the same points on the track). Otherwise print "NO" (without quotes). Demo Input: ['3 8\n2 4 6\n1 5 7\n', '4 9\n2 3 5 8\n0 1 3 6\n', '2 4\n1 3\n1 2\n'] Demo Output: ['YES\n', 'YES\n', 'NO\n'] Note: The first test is analyzed in the statement.
```python n,l = map(int,input().split()) kefa = list(map(int,input().split())) sasha = list(map(int,input().split())) diff1 = [kefa[i+1] - kefa[i] if i != n - 1 else l - kefa[-1] + kefa[0] for i in range(n) ] diff2 = [sasha[i+1] - sasha[i] if i != n - 1 else l - sasha[-1] + sasha[0] for i in range(n) ] def rotation(pos): for i in range(n): if diff2[(i+pos)%n] != diff1[i]: return False return True for i in range(n): if(rotation(i)): print("YES") exit() print("NO") ```
3
452
A
Eevee
PROGRAMMING
1,000
[ "brute force", "implementation", "strings" ]
null
null
You are solving the crossword problem K from IPSC 2014. You solved all the clues except for one: who does Eevee evolve into? You are not very into pokemons, but quick googling helped you find out, that Eevee can evolve into eight different pokemons: Vaporeon, Jolteon, Flareon, Espeon, Umbreon, Leafeon, Glaceon, and Sylveon. You know the length of the word in the crossword, and you already know some letters. Designers of the crossword made sure that the answer is unambiguous, so you can assume that exactly one pokemon out of the 8 that Eevee evolves into fits the length and the letters given. Your task is to find it.
First line contains an integer *n* (6<=≤<=*n*<=≤<=8) – the length of the string. Next line contains a string consisting of *n* characters, each of which is either a lower case english letter (indicating a known letter) or a dot character (indicating an empty cell in the crossword).
Print a name of the pokemon that Eevee can evolve into that matches the pattern in the input. Use lower case letters only to print the name (in particular, do not capitalize the first letter).
[ "7\nj......\n", "7\n...feon\n", "7\n.l.r.o.\n" ]
[ "jolteon\n", "leafeon\n", "flareon\n" ]
Here's a set of names in a form you can paste into your solution: ["vaporeon", "jolteon", "flareon", "espeon", "umbreon", "leafeon", "glaceon", "sylveon"] {"vaporeon", "jolteon", "flareon", "espeon", "umbreon", "leafeon", "glaceon", "sylveon"}
500
[ { "input": "7\n...feon", "output": "leafeon" }, { "input": "7\n.l.r.o.", "output": "flareon" }, { "input": "6\n.s..o.", "output": "espeon" }, { "input": "7\nglaceon", "output": "glaceon" }, { "input": "8\n.a.o.e.n", "output": "vaporeon" }, { "input": "7\n.laceon", "output": "glaceon" }, { "input": "7\n..lveon", "output": "sylveon" }, { "input": "7\n.l.ceon", "output": "glaceon" }, { "input": "7\n..areon", "output": "flareon" } ]
1,495,622,660
2,147,483,647
Python 3
OK
TESTS
20
62
0
iwannabethebest = ["jolteon", "flareon", "umbreon", "leafeon", "glaceon", "sylveon"] n, s = int(input()), str(input()) if n != 7: print("vaporeon" if n == 8 else "espeon") else: for pikachu in iwannabethebest: testforthebest = True for i in range(n): if s[i] != '.' and s[i] != pikachu[i]: testforthebest = False if testforthebest: print(pikachu) break
Title: Eevee Time Limit: None seconds Memory Limit: None megabytes Problem Description: You are solving the crossword problem K from IPSC 2014. You solved all the clues except for one: who does Eevee evolve into? You are not very into pokemons, but quick googling helped you find out, that Eevee can evolve into eight different pokemons: Vaporeon, Jolteon, Flareon, Espeon, Umbreon, Leafeon, Glaceon, and Sylveon. You know the length of the word in the crossword, and you already know some letters. Designers of the crossword made sure that the answer is unambiguous, so you can assume that exactly one pokemon out of the 8 that Eevee evolves into fits the length and the letters given. Your task is to find it. Input Specification: First line contains an integer *n* (6<=≤<=*n*<=≤<=8) – the length of the string. Next line contains a string consisting of *n* characters, each of which is either a lower case english letter (indicating a known letter) or a dot character (indicating an empty cell in the crossword). Output Specification: Print a name of the pokemon that Eevee can evolve into that matches the pattern in the input. Use lower case letters only to print the name (in particular, do not capitalize the first letter). Demo Input: ['7\nj......\n', '7\n...feon\n', '7\n.l.r.o.\n'] Demo Output: ['jolteon\n', 'leafeon\n', 'flareon\n'] Note: Here's a set of names in a form you can paste into your solution: ["vaporeon", "jolteon", "flareon", "espeon", "umbreon", "leafeon", "glaceon", "sylveon"] {"vaporeon", "jolteon", "flareon", "espeon", "umbreon", "leafeon", "glaceon", "sylveon"}
```python iwannabethebest = ["jolteon", "flareon", "umbreon", "leafeon", "glaceon", "sylveon"] n, s = int(input()), str(input()) if n != 7: print("vaporeon" if n == 8 else "espeon") else: for pikachu in iwannabethebest: testforthebest = True for i in range(n): if s[i] != '.' and s[i] != pikachu[i]: testforthebest = False if testforthebest: print(pikachu) break ```
3
776
B
Sherlock and his girlfriend
PROGRAMMING
1,200
[ "constructive algorithms", "number theory" ]
null
null
Sherlock has a new girlfriend (so unlike him!). Valentine's day is coming and he wants to gift her some jewelry. He bought *n* pieces of jewelry. The *i*-th piece has price equal to *i*<=+<=1, that is, the prices of the jewelry are 2,<=3,<=4,<=... *n*<=+<=1. Watson gave Sherlock a challenge to color these jewelry pieces such that two pieces don't have the same color if the price of one piece is a prime divisor of the price of the other piece. Also, Watson asked him to minimize the number of different colors used. Help Sherlock complete this trivial task.
The only line contains single integer *n* (1<=≤<=*n*<=≤<=100000) — the number of jewelry pieces.
The first line of output should contain a single integer *k*, the minimum number of colors that can be used to color the pieces of jewelry with the given constraints. The next line should consist of *n* space-separated integers (between 1 and *k*) that specify the color of each piece in the order of increasing price. If there are multiple ways to color the pieces using *k* colors, you can output any of them.
[ "3\n", "4\n" ]
[ "2\n1 1 2 ", "2\n2 1 1 2\n" ]
In the first input, the colors for first, second and third pieces of jewelry having respective prices 2, 3 and 4 are 1, 1 and 2 respectively. In this case, as 2 is a prime divisor of 4, colors of jewelry having prices 2 and 4 must be distinct.
1,000
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2 2 2 2 2 2 2 2 2 2 2 1 2 2 2 1 2 1 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 2 2 2 2 1 2 2 2 2 ..." }, { "input": "44907", "output": "2\n1 1 2 1 2 1 2 2 2 1 2 1 2 2 2 1 2 1 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 1 2 2 2 1 2 1 2 2 2 1 2 2 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 1 2 2 2 1 2 1 2 2 2 2 2 1 2 2 2 1 2 2 2 2 2 1 2 2 2 2 2 2 2 1 2 2 2 1 2 1 2 2 2 1 2 1 2 2 2 1 2 2 2 2 2 2 2 2 2 2 2 2 2 1 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 2 2 2 2 1 2 1 2 2 2 2 2 1 2 2 2 2 2 1 2 2 2 1 2 2 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 2 2 2 2 1 2 1 2 2 2 1 2 1 2 2 2 2 2 2 2 2 2 2 2 1 2 2 2 2 2 2 2 2 2 2 2 1 2 2 2 1 2 1 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 2 2 2 2 1 2 2 2 2 ..." }, { "input": "13736", "output": "2\n1 1 2 1 2 1 2 2 2 1 2 1 2 2 2 1 2 1 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 1 2 2 2 1 2 1 2 2 2 1 2 2 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 1 2 2 2 1 2 1 2 2 2 2 2 1 2 2 2 1 2 2 2 2 2 1 2 2 2 2 2 2 2 1 2 2 2 1 2 1 2 2 2 1 2 1 2 2 2 1 2 2 2 2 2 2 2 2 2 2 2 2 2 1 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 2 2 2 2 1 2 1 2 2 2 2 2 1 2 2 2 2 2 1 2 2 2 1 2 2 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 2 2 2 2 1 2 1 2 2 2 1 2 1 2 2 2 2 2 2 2 2 2 2 2 1 2 2 2 2 2 2 2 2 2 2 2 1 2 2 2 1 2 1 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 2 2 2 2 1 2 2 2 2 ..." }, { "input": "29594", "output": "2\n1 1 2 1 2 1 2 2 2 1 2 1 2 2 2 1 2 1 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 1 2 2 2 1 2 1 2 2 2 1 2 2 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 1 2 2 2 1 2 1 2 2 2 2 2 1 2 2 2 1 2 2 2 2 2 1 2 2 2 2 2 2 2 1 2 2 2 1 2 1 2 2 2 1 2 1 2 2 2 1 2 2 2 2 2 2 2 2 2 2 2 2 2 1 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 2 2 2 2 1 2 1 2 2 2 2 2 1 2 2 2 2 2 1 2 2 2 1 2 2 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 2 2 2 2 1 2 1 2 2 2 1 2 1 2 2 2 2 2 2 2 2 2 2 2 1 2 2 2 2 2 2 2 2 2 2 2 1 2 2 2 1 2 1 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 2 2 2 2 1 2 2 2 2 ..." }, { "input": "19283", "output": "2\n1 1 2 1 2 1 2 2 2 1 2 1 2 2 2 1 2 1 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 1 2 2 2 1 2 1 2 2 2 1 2 2 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 1 2 2 2 1 2 1 2 2 2 2 2 1 2 2 2 1 2 2 2 2 2 1 2 2 2 2 2 2 2 1 2 2 2 1 2 1 2 2 2 1 2 1 2 2 2 1 2 2 2 2 2 2 2 2 2 2 2 2 2 1 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 2 2 2 2 1 2 1 2 2 2 2 2 1 2 2 2 2 2 1 2 2 2 1 2 2 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 2 2 2 2 1 2 1 2 2 2 1 2 1 2 2 2 2 2 2 2 2 2 2 2 1 2 2 2 2 2 2 2 2 2 2 2 1 2 2 2 1 2 1 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 2 2 2 2 1 2 2 2 2 ..." }, { "input": "15346", "output": "2\n1 1 2 1 2 1 2 2 2 1 2 1 2 2 2 1 2 1 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 1 2 2 2 1 2 1 2 2 2 1 2 2 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 1 2 2 2 1 2 1 2 2 2 2 2 1 2 2 2 1 2 2 2 2 2 1 2 2 2 2 2 2 2 1 2 2 2 1 2 1 2 2 2 1 2 1 2 2 2 1 2 2 2 2 2 2 2 2 2 2 2 2 2 1 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 2 2 2 2 1 2 1 2 2 2 2 2 1 2 2 2 2 2 1 2 2 2 1 2 2 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 2 2 2 2 1 2 1 2 2 2 1 2 1 2 2 2 2 2 2 2 2 2 2 2 1 2 2 2 2 2 2 2 2 2 2 2 1 2 2 2 1 2 1 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 2 2 2 2 1 2 2 2 2 ..." }, { "input": "41794", "output": "2\n1 1 2 1 2 1 2 2 2 1 2 1 2 2 2 1 2 1 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 1 2 2 2 1 2 1 2 2 2 1 2 2 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 1 2 2 2 1 2 1 2 2 2 2 2 1 2 2 2 1 2 2 2 2 2 1 2 2 2 2 2 2 2 1 2 2 2 1 2 1 2 2 2 1 2 1 2 2 2 1 2 2 2 2 2 2 2 2 2 2 2 2 2 1 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 2 2 2 2 1 2 1 2 2 2 2 2 1 2 2 2 2 2 1 2 2 2 1 2 2 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 2 2 2 2 1 2 1 2 2 2 1 2 1 2 2 2 2 2 2 2 2 2 2 2 1 2 2 2 2 2 2 2 2 2 2 2 1 2 2 2 1 2 1 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 2 2 2 2 1 2 2 2 2 ..." }, { "input": "99998", "output": "2\n1 1 2 1 2 1 2 2 2 1 2 1 2 2 2 1 2 1 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 1 2 2 2 1 2 1 2 2 2 1 2 2 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 1 2 2 2 1 2 1 2 2 2 2 2 1 2 2 2 1 2 2 2 2 2 1 2 2 2 2 2 2 2 1 2 2 2 1 2 1 2 2 2 1 2 1 2 2 2 1 2 2 2 2 2 2 2 2 2 2 2 2 2 1 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 2 2 2 2 1 2 1 2 2 2 2 2 1 2 2 2 2 2 1 2 2 2 1 2 2 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 2 2 2 2 1 2 1 2 2 2 1 2 1 2 2 2 2 2 2 2 2 2 2 2 1 2 2 2 2 2 2 2 2 2 2 2 1 2 2 2 1 2 1 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 2 2 2 2 1 2 2 2 2 ..." }, { "input": "100000", "output": "2\n1 1 2 1 2 1 2 2 2 1 2 1 2 2 2 1 2 1 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 1 2 2 2 1 2 1 2 2 2 1 2 2 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 1 2 2 2 1 2 1 2 2 2 2 2 1 2 2 2 1 2 2 2 2 2 1 2 2 2 2 2 2 2 1 2 2 2 1 2 1 2 2 2 1 2 1 2 2 2 1 2 2 2 2 2 2 2 2 2 2 2 2 2 1 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 2 2 2 2 1 2 1 2 2 2 2 2 1 2 2 2 2 2 1 2 2 2 1 2 2 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 2 2 2 2 1 2 1 2 2 2 1 2 1 2 2 2 2 2 2 2 2 2 2 2 1 2 2 2 2 2 2 2 2 2 2 2 1 2 2 2 1 2 1 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 2 2 2 2 1 2 2 2 2 ..." }, { "input": "2", "output": "1\n1 1 " }, { "input": "1", "output": "1\n1 " }, { "input": "2", "output": "1\n1 1 " }, { "input": "100000", "output": "2\n1 1 2 1 2 1 2 2 2 1 2 1 2 2 2 1 2 1 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 1 2 2 2 1 2 1 2 2 2 1 2 2 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 1 2 2 2 1 2 1 2 2 2 2 2 1 2 2 2 1 2 2 2 2 2 1 2 2 2 2 2 2 2 1 2 2 2 1 2 1 2 2 2 1 2 1 2 2 2 1 2 2 2 2 2 2 2 2 2 2 2 2 2 1 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 2 2 2 2 1 2 1 2 2 2 2 2 1 2 2 2 2 2 1 2 2 2 1 2 2 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 2 2 2 2 1 2 1 2 2 2 1 2 1 2 2 2 2 2 2 2 2 2 2 2 1 2 2 2 2 2 2 2 2 2 2 2 1 2 2 2 1 2 1 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 2 2 2 2 1 2 2 2 2 ..." }, { "input": "99971", "output": "2\n1 1 2 1 2 1 2 2 2 1 2 1 2 2 2 1 2 1 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 1 2 2 2 1 2 1 2 2 2 1 2 2 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 1 2 2 2 1 2 1 2 2 2 2 2 1 2 2 2 1 2 2 2 2 2 1 2 2 2 2 2 2 2 1 2 2 2 1 2 1 2 2 2 1 2 1 2 2 2 1 2 2 2 2 2 2 2 2 2 2 2 2 2 1 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 2 2 2 2 1 2 1 2 2 2 2 2 1 2 2 2 2 2 1 2 2 2 1 2 2 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 2 2 2 2 1 2 1 2 2 2 1 2 1 2 2 2 2 2 2 2 2 2 2 2 1 2 2 2 2 2 2 2 2 2 2 2 1 2 2 2 1 2 1 2 2 2 1 2 2 2 2 2 1 2 1 2 2 2 2 2 2 2 2 2 1 2 2 2 2 ..." } ]
1,579,690,902
2,147,483,647
Python 3
OK
TESTS
53
639
5,120,000
N = 1000010 p=[1]*N for i in range(2, N): if 1 == p[i]: for j in range(i * i, N, i): p[j] = 2 n = int(input()) ans = p[2:n+2] print(len(set(ans))) print(*ans)
Title: Sherlock and his girlfriend Time Limit: None seconds Memory Limit: None megabytes Problem Description: Sherlock has a new girlfriend (so unlike him!). Valentine's day is coming and he wants to gift her some jewelry. He bought *n* pieces of jewelry. The *i*-th piece has price equal to *i*<=+<=1, that is, the prices of the jewelry are 2,<=3,<=4,<=... *n*<=+<=1. Watson gave Sherlock a challenge to color these jewelry pieces such that two pieces don't have the same color if the price of one piece is a prime divisor of the price of the other piece. Also, Watson asked him to minimize the number of different colors used. Help Sherlock complete this trivial task. Input Specification: The only line contains single integer *n* (1<=≤<=*n*<=≤<=100000) — the number of jewelry pieces. Output Specification: The first line of output should contain a single integer *k*, the minimum number of colors that can be used to color the pieces of jewelry with the given constraints. The next line should consist of *n* space-separated integers (between 1 and *k*) that specify the color of each piece in the order of increasing price. If there are multiple ways to color the pieces using *k* colors, you can output any of them. Demo Input: ['3\n', '4\n'] Demo Output: ['2\n1 1 2 ', '2\n2 1 1 2\n'] Note: In the first input, the colors for first, second and third pieces of jewelry having respective prices 2, 3 and 4 are 1, 1 and 2 respectively. In this case, as 2 is a prime divisor of 4, colors of jewelry having prices 2 and 4 must be distinct.
```python N = 1000010 p=[1]*N for i in range(2, N): if 1 == p[i]: for j in range(i * i, N, i): p[j] = 2 n = int(input()) ans = p[2:n+2] print(len(set(ans))) print(*ans) ```
3
215
A
Bicycle Chain
PROGRAMMING
900
[ "brute force", "implementation" ]
null
null
Vasya's bicycle chain drive consists of two parts: *n* stars are attached to the pedal axle, *m* stars are attached to the rear wheel axle. The chain helps to rotate the rear wheel by transmitting the pedal rotation. We know that the *i*-th star on the pedal axle has *a**i* (0<=&lt;<=*a*1<=&lt;<=*a*2<=&lt;<=...<=&lt;<=*a**n*) teeth, and the *j*-th star on the rear wheel axle has *b**j* (0<=&lt;<=*b*1<=&lt;<=*b*2<=&lt;<=...<=&lt;<=*b**m*) teeth. Any pair (*i*,<=*j*) (1<=≤<=*i*<=≤<=*n*; 1<=≤<=*j*<=≤<=*m*) is called a gear and sets the indexes of stars to which the chain is currently attached. Gear (*i*,<=*j*) has a gear ratio, equal to the value . Since Vasya likes integers, he wants to find such gears (*i*,<=*j*), that their ratios are integers. On the other hand, Vasya likes fast driving, so among all "integer" gears (*i*,<=*j*) he wants to choose a gear with the maximum ratio. Help him to find the number of such gears. In the problem, fraction denotes division in real numbers, that is, no rounding is performed.
The first input line contains integer *n* (1<=≤<=*n*<=≤<=50) — the number of stars on the bicycle's pedal axle. The second line contains *n* integers *a*1,<=*a*2,<=...,<=*a**n* (1<=≤<=*a**i*<=≤<=104) in the order of strict increasing. The third input line contains integer *m* (1<=≤<=*m*<=≤<=50) — the number of stars on the rear wheel axle. The fourth line contains *m* integers *b*1,<=*b*2,<=...,<=*b**m* (1<=≤<=*b**i*<=≤<=104) in the order of strict increasing. It is guaranteed that there exists at least one gear (*i*,<=*j*), that its gear ratio is an integer. The numbers on the lines are separated by spaces.
Print the number of "integer" gears with the maximum ratio among all "integer" gears.
[ "2\n4 5\n3\n12 13 15\n", "4\n1 2 3 4\n5\n10 11 12 13 14\n" ]
[ "2\n", "1\n" ]
In the first sample the maximum "integer" gear ratio equals 3. There are two gears that have such gear ratio. For one of them *a*<sub class="lower-index">1</sub> = 4, *b*<sub class="lower-index">1</sub> = 12, and for the other *a*<sub class="lower-index">2</sub> = 5, *b*<sub class="lower-index">3</sub> = 15.
500
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30 32 33 34 35 43 45 48 50 51 54 55 58 59 60 61 62 65 70 71 72 76 78 79 80 81 83 84 85 87 89 91 92 94 97 98 99 100\n50\n2 3 5 6 7 10 15 16 17 20 23 28 29 30 31 34 36 37 40 42 45 46 48 54 55 56 58 59 61 62 69 70 71 72 75 76 78 82 84 85 86 87 88 89 90 91 92 97 99 100", "output": "1" }, { "input": "50\n3 5 6 8 9 11 13 19 21 23 24 32 34 35 42 50 51 52 56 58 59 69 70 72 73 75 76 77 78 80 83 88 90 95 96 100 101 102 108 109 113 119 124 135 138 141 142 143 145 150\n50\n5 8 10 11 18 19 23 30 35 43 51 53 55 58 63 68 69 71 77 78 79 82 83 86 88 89 91 92 93 94 96 102 103 105 109 110 113 114 116 123 124 126 127 132 133 135 136 137 142 149", "output": "1" }, { "input": "50\n6 16 24 25 27 33 36 40 51 60 62 65 71 72 75 77 85 87 91 93 98 102 103 106 117 118 120 121 122 123 125 131 134 136 143 148 155 157 160 161 164 166 170 178 184 187 188 192 194 197\n50\n5 9 17 23 27 34 40 44 47 59 62 70 81 82 87 88 89 90 98 101 102 110 113 114 115 116 119 122 124 128 130 137 138 140 144 150 152 155 159 164 166 169 171 175 185 186 187 189 190 193", "output": "1" }, { "input": "50\n14 22 23 31 32 35 48 63 76 79 88 97 101 102 103 104 106 113 114 115 116 126 136 138 145 152 155 156 162 170 172 173 179 180 182 203 208 210 212 222 226 229 231 232 235 237 245 246 247 248\n50\n2 5 6 16 28 44 45 46 54 55 56 63 72 80 87 93 94 96 97 100 101 103 132 135 140 160 164 165 167 168 173 180 182 185 186 192 194 198 199 202 203 211 213 216 217 227 232 233 236 245", "output": "1" }, { "input": "50\n14 19 33 35 38 41 51 54 69 70 71 73 76 80 84 94 102 104 105 106 107 113 121 128 131 168 180 181 187 191 195 201 205 207 210 216 220 238 249 251 263 271 272 275 281 283 285 286 291 294\n50\n2 3 5 20 21 35 38 40 43 48 49 52 55 64 73 77 82 97 109 113 119 121 125 132 137 139 145 146 149 180 182 197 203 229 234 241 244 251 264 271 274 281 284 285 287 291 292 293 294 298", "output": "1" }, { "input": "50\n2 4 5 16 18 19 22 23 25 26 34 44 48 54 67 79 80 84 92 110 116 133 138 154 163 171 174 202 205 218 228 229 234 245 247 249 250 263 270 272 274 275 277 283 289 310 312 334 339 342\n50\n1 5 17 18 25 37 46 47 48 59 67 75 80 83 84 107 115 122 137 141 159 162 175 180 184 204 221 224 240 243 247 248 249 258 259 260 264 266 269 271 274 293 294 306 329 330 334 335 342 350", "output": "1" }, { "input": "50\n6 9 11 21 28 39 42 56 60 63 81 88 91 95 105 110 117 125 149 165 174 176 185 189 193 196 205 231 233 268 278 279 281 286 289 292 298 303 305 306 334 342 350 353 361 371 372 375 376 378\n50\n6 17 20 43 45 52 58 59 82 83 88 102 111 118 121 131 145 173 190 191 200 216 224 225 232 235 243 256 260 271 290 291 321 322 323 329 331 333 334 341 343 348 351 354 356 360 366 379 387 388", "output": "1" }, { "input": "10\n17 239 443 467 661 1069 1823 2333 3767 4201\n20\n51 83 97 457 593 717 997 1329 1401 1459 1471 1983 2371 2539 3207 3251 3329 5469 6637 6999", "output": "8" }, { "input": "20\n179 359 401 467 521 601 919 941 1103 1279 1709 1913 1949 2003 2099 2143 2179 2213 2399 4673\n20\n151 181 191 251 421 967 1109 1181 1249 1447 1471 1553 1619 2327 2551 2791 3049 3727 6071 7813", "output": "3" }, { "input": "20\n79 113 151 709 809 983 1291 1399 1409 1429 2377 2659 2671 2897 3217 3511 3557 3797 3823 4363\n10\n19 101 659 797 1027 1963 2129 2971 3299 9217", "output": "3" }, { "input": "30\n19 47 109 179 307 331 389 401 461 509 547 569 617 853 883 1249 1361 1381 1511 1723 1741 1783 2459 2531 2621 3533 3821 4091 5557 6217\n20\n401 443 563 941 967 997 1535 1567 1655 1747 1787 1945 1999 2251 2305 2543 2735 4415 6245 7555", "output": "8" }, { "input": "30\n3 43 97 179 257 313 353 359 367 389 397 457 547 599 601 647 1013 1021 1063 1433 1481 1531 1669 3181 3373 3559 3769 4157 4549 5197\n50\n13 15 17 19 29 79 113 193 197 199 215 223 271 293 359 485 487 569 601 683 895 919 941 967 1283 1285 1289 1549 1565 1765 1795 1835 1907 1931 1945 1985 1993 2285 2731 2735 2995 3257 4049 4139 5105 5315 7165 7405 7655 8345", "output": "20" }, { "input": "50\n11 17 23 53 59 109 137 149 173 251 353 379 419 421 439 503 593 607 661 773 821 877 941 997 1061 1117 1153 1229 1289 1297 1321 1609 1747 2311 2389 2543 2693 3041 3083 3137 3181 3209 3331 3373 3617 3767 4201 4409 4931 6379\n50\n55 59 67 73 85 89 101 115 211 263 295 353 545 599 607 685 739 745 997 1031 1255 1493 1523 1667 1709 1895 1949 2161 2195 2965 3019 3035 3305 3361 3373 3673 3739 3865 3881 4231 4253 4385 4985 5305 5585 5765 6145 6445 8045 8735", "output": "23" }, { "input": "5\n33 78 146 3055 4268\n5\n2211 2584 5226 9402 9782", "output": "3" }, { "input": "5\n35 48 52 86 8001\n10\n332 3430 3554 4704 4860 5096 6215 7583 8228 8428", "output": "4" }, { "input": "10\n97 184 207 228 269 2084 4450 6396 7214 9457\n16\n338 1179 1284 1545 1570 2444 3167 3395 3397 5550 6440 7245 7804 7980 9415 9959", "output": "5" }, { "input": "30\n25 30 41 57 58 62 70 72 76 79 84 85 88 91 98 101 104 109 119 129 136 139 148 151 926 1372 3093 3936 5423 7350\n25\n1600 1920 2624 3648 3712 3968 4480 4608 4864 5056 5376 5440 5632 5824 6272 6464 6656 6934 6976 7616 8256 8704 8896 9472 9664", "output": "24" }, { "input": "5\n33 78 146 3055 4268\n5\n2211 2584 5226 9402 9782", "output": "3" }, { "input": "5\n35 48 52 86 8001\n10\n332 3430 3554 4704 4860 5096 6215 7583 8228 8428", "output": "4" }, { "input": "10\n97 184 207 228 269 2084 4450 6396 7214 9457\n16\n338 1179 1284 1545 1570 2444 3167 3395 3397 5550 6440 7245 7804 7980 9415 9959", "output": "5" }, { "input": "30\n25 30 41 57 58 62 70 72 76 79 84 85 88 91 98 101 104 109 119 129 136 139 148 151 926 1372 3093 3936 5423 7350\n25\n1600 1920 2624 3648 3712 3968 4480 4608 4864 5056 5376 5440 5632 5824 6272 6464 6656 6934 6976 7616 8256 8704 8896 9472 9664", "output": "24" }, { "input": "47\n66 262 357 457 513 530 538 540 592 691 707 979 1015 1242 1246 1667 1823 1886 1963 2133 2649 2679 2916 2949 3413 3523 3699 3958 4393 4922 5233 5306 5799 6036 6302 6629 7208 7282 7315 7822 7833 7927 8068 8150 8870 8962 9987\n39\n167 199 360 528 1515 1643 1986 1988 2154 2397 2856 3552 3656 3784 3980 4096 4104 4240 4320 4736 4951 5266 5656 5849 5850 6169 6517 6875 7244 7339 7689 7832 8120 8716 9503 9509 9933 9936 9968", "output": "12" }, { "input": "1\n94\n50\n423 446 485 1214 1468 1507 1853 1930 1999 2258 2271 2285 2425 2543 2715 2743 2992 3196 4074 4108 4448 4475 4652 5057 5250 5312 5356 5375 5731 5986 6298 6501 6521 7146 7255 7276 7332 7481 7998 8141 8413 8665 8908 9221 9336 9491 9504 9677 9693 9706", "output": "1" }, { "input": "50\n51 67 75 186 194 355 512 561 720 876 1077 1221 1503 1820 2153 2385 2568 2608 2937 2969 3271 3311 3481 4081 4093 4171 4255 4256 4829 5020 5192 5636 5817 6156 6712 6717 7153 7436 7608 7612 7866 7988 8264 8293 8867 9311 9879 9882 9889 9908\n1\n5394", "output": "1" }, { "input": "50\n26 367 495 585 675 789 855 1185 1312 1606 2037 2241 2587 2612 2628 2807 2873 2924 3774 4067 4376 4668 4902 5001 5082 5100 5104 5209 5345 5515 5661 5777 5902 5907 6155 6323 6675 6791 7503 8159 8207 8254 8740 8848 8855 8933 9069 9164 9171 9586\n5\n1557 6246 7545 8074 8284", "output": "1" }, { "input": "5\n25 58 91 110 2658\n50\n21 372 909 1172 1517 1554 1797 1802 1843 1977 2006 2025 2137 2225 2317 2507 2645 2754 2919 3024 3202 3212 3267 3852 4374 4487 4553 4668 4883 4911 4916 5016 5021 5068 5104 5162 5683 5856 6374 6871 7333 7531 8099 8135 8173 8215 8462 8776 9433 9790", "output": "4" }, { "input": "45\n37 48 56 59 69 70 79 83 85 86 99 114 131 134 135 145 156 250 1739 1947 2116 2315 2449 3104 3666 4008 4406 4723 4829 5345 5836 6262 6296 6870 7065 7110 7130 7510 7595 8092 8442 8574 9032 9091 9355\n50\n343 846 893 1110 1651 1837 2162 2331 2596 3012 3024 3131 3294 3394 3528 3717 3997 4125 4347 4410 4581 4977 5030 5070 5119 5229 5355 5413 5418 5474 5763 5940 6151 6161 6164 6237 6506 6519 6783 7182 7413 7534 8069 8253 8442 8505 9135 9308 9828 9902", "output": "17" }, { "input": "50\n17 20 22 28 36 38 46 47 48 50 52 57 58 62 63 69 70 74 75 78 79 81 82 86 87 90 93 95 103 202 292 442 1756 1769 2208 2311 2799 2957 3483 4280 4324 4932 5109 5204 6225 6354 6561 7136 8754 9670\n40\n68 214 957 1649 1940 2078 2134 2716 3492 3686 4462 4559 4656 4756 4850 5044 5490 5529 5592 5626 6014 6111 6693 6790 7178 7275 7566 7663 7702 7857 7954 8342 8511 8730 8957 9021 9215 9377 9445 9991", "output": "28" }, { "input": "39\n10 13 21 25 36 38 47 48 58 64 68 69 73 79 86 972 2012 2215 2267 2503 3717 3945 4197 4800 5266 6169 6612 6824 7023 7322 7582 7766 8381 8626 8879 9079 9088 9838 9968\n50\n432 877 970 1152 1202 1223 1261 1435 1454 1578 1843 1907 2003 2037 2183 2195 2215 2425 3065 3492 3615 3637 3686 3946 4189 4415 4559 4656 4665 4707 4886 4887 5626 5703 5955 6208 6521 6581 6596 6693 6985 7013 7081 7343 7663 8332 8342 8637 9207 9862", "output": "15" }, { "input": "50\n7 144 269 339 395 505 625 688 709 950 1102 1152 1350 1381 1641 1830 1977 1999 2093 2180 2718 3308 3574 4168 4232 4259 4393 4689 4982 5154 5476 5581 5635 5721 6159 6302 6741 7010 7152 7315 7417 7482 8116 8239 8640 9347 9395 9614 9661 9822\n20\n84 162 292 1728 1866 2088 3228 3470 4068 5318 5470 6060 6380 6929 7500 8256 8399 8467 8508 9691", "output": "8" }, { "input": "50\n159 880 1070 1139 1358 1608 1691 1841 2073 2171 2213 2597 2692 2759 2879 2931 3173 3217 3441 4201 4878 5106 5129 5253 5395 5647 5968 6019 6130 6276 6286 6330 6409 6728 7488 7713 7765 7828 7899 8064 8264 8457 8483 8685 8900 8946 8965 9133 9187 9638\n45\n57 159 1070 1139 1391 1608 1691 1841 2171 2213 2692 2759 2931 3173 3217 3441 4201 4878 5106 5129 5253 5647 5968 6130 6276 6286 6409 7488 7694 7713 7765 7828 7899 8003 8064 8081 8244 8264 8685 8900 8946 8965 9133 9638 9673", "output": "38" }, { "input": "3\n3 4 5\n3\n6 20 25", "output": "2" }, { "input": "4\n2 3 5 8\n4\n2 6 8 10", "output": "1" }, { "input": "4\n3 5 7 11\n4\n3 5 7 22", "output": "1" }, { "input": "2\n2 3\n3\n20 30 50", "output": "1" }, { "input": "3\n1 2 3\n4\n2 4 6 49", "output": "1" }, { "input": "2\n4 5\n3\n12 15 20", "output": "1" }, { "input": "3\n2 5 7\n3\n4 5 7", "output": "1" }, { "input": "3\n3 5 8\n3\n6 8 10", "output": "2" }, { "input": "2\n2 3\n4\n4 6 9 33", "output": "1" }, { "input": "2\n2 3\n4\n4 6 21 40", "output": "1" }, { "input": "3\n4 9 10\n3\n8 9 10", "output": "1" }, { "input": "5\n1 5 6 9 51\n5\n5 12 18 27 10000", "output": "1" }, { "input": "13\n1 2 3 4 5 6 7 8 9 10 11 12 13\n1\n14", "output": "1" } ]
1,595,652,889
2,147,483,647
PyPy 3
OK
TESTS
57
310
21,401,600
import sys def input(): return sys.stdin.readline().strip() def iinput(): return int(input()) def rinput(): return map(int, sys.stdin.readline().strip().split()) def get_list(): return list(map(int, sys.stdin.readline().strip().split())) n=iinput() a=list(map(int,input().split())) m=iinput() b=list(map(int,input().split())) k=[] for i in range(n): for j in range(m): l = b[j]/a[i] if l%1==0: k.append(l) l=max(k) c=k.count(l) print(c)
Title: Bicycle Chain Time Limit: None seconds Memory Limit: None megabytes Problem Description: Vasya's bicycle chain drive consists of two parts: *n* stars are attached to the pedal axle, *m* stars are attached to the rear wheel axle. The chain helps to rotate the rear wheel by transmitting the pedal rotation. We know that the *i*-th star on the pedal axle has *a**i* (0<=&lt;<=*a*1<=&lt;<=*a*2<=&lt;<=...<=&lt;<=*a**n*) teeth, and the *j*-th star on the rear wheel axle has *b**j* (0<=&lt;<=*b*1<=&lt;<=*b*2<=&lt;<=...<=&lt;<=*b**m*) teeth. Any pair (*i*,<=*j*) (1<=≤<=*i*<=≤<=*n*; 1<=≤<=*j*<=≤<=*m*) is called a gear and sets the indexes of stars to which the chain is currently attached. Gear (*i*,<=*j*) has a gear ratio, equal to the value . Since Vasya likes integers, he wants to find such gears (*i*,<=*j*), that their ratios are integers. On the other hand, Vasya likes fast driving, so among all "integer" gears (*i*,<=*j*) he wants to choose a gear with the maximum ratio. Help him to find the number of such gears. In the problem, fraction denotes division in real numbers, that is, no rounding is performed. Input Specification: The first input line contains integer *n* (1<=≤<=*n*<=≤<=50) — the number of stars on the bicycle's pedal axle. The second line contains *n* integers *a*1,<=*a*2,<=...,<=*a**n* (1<=≤<=*a**i*<=≤<=104) in the order of strict increasing. The third input line contains integer *m* (1<=≤<=*m*<=≤<=50) — the number of stars on the rear wheel axle. The fourth line contains *m* integers *b*1,<=*b*2,<=...,<=*b**m* (1<=≤<=*b**i*<=≤<=104) in the order of strict increasing. It is guaranteed that there exists at least one gear (*i*,<=*j*), that its gear ratio is an integer. The numbers on the lines are separated by spaces. Output Specification: Print the number of "integer" gears with the maximum ratio among all "integer" gears. Demo Input: ['2\n4 5\n3\n12 13 15\n', '4\n1 2 3 4\n5\n10 11 12 13 14\n'] Demo Output: ['2\n', '1\n'] Note: In the first sample the maximum "integer" gear ratio equals 3. There are two gears that have such gear ratio. For one of them *a*<sub class="lower-index">1</sub> = 4, *b*<sub class="lower-index">1</sub> = 12, and for the other *a*<sub class="lower-index">2</sub> = 5, *b*<sub class="lower-index">3</sub> = 15.
```python import sys def input(): return sys.stdin.readline().strip() def iinput(): return int(input()) def rinput(): return map(int, sys.stdin.readline().strip().split()) def get_list(): return list(map(int, sys.stdin.readline().strip().split())) n=iinput() a=list(map(int,input().split())) m=iinput() b=list(map(int,input().split())) k=[] for i in range(n): for j in range(m): l = b[j]/a[i] if l%1==0: k.append(l) l=max(k) c=k.count(l) print(c) ```
3
199
A
Hexadecimal's theorem
PROGRAMMING
900
[ "brute force", "constructive algorithms", "implementation", "number theory" ]
null
null
Recently, a chaotic virus Hexadecimal advanced a new theorem which will shake the Universe. She thinks that each Fibonacci number can be represented as sum of three not necessary different Fibonacci numbers. Let's remember how Fibonacci numbers can be calculated. *F*0<==<=0, *F*1<==<=1, and all the next numbers are *F**i*<==<=*F**i*<=-<=2<=+<=*F**i*<=-<=1. So, Fibonacci numbers make a sequence of numbers: 0, 1, 1, 2, 3, 5, 8, 13, ... If you haven't run away from the PC in fear, you have to help the virus. Your task is to divide given Fibonacci number *n* by three not necessary different Fibonacci numbers or say that it is impossible.
The input contains of a single integer *n* (0<=≤<=*n*<=&lt;<=109) — the number that should be represented by the rules described above. It is guaranteed that *n* is a Fibonacci number.
Output three required numbers: *a*, *b* and *c*. If there is no answer for the test you have to print "I'm too stupid to solve this problem" without the quotes. If there are multiple answers, print any of them.
[ "3\n", "13\n" ]
[ "1 1 1\n", "2 3 8\n" ]
none
500
[ { "input": "3", "output": "1 1 1" }, { "input": "13", "output": "2 3 8" }, { "input": "0", "output": "0 0 0" }, { "input": "1", "output": "1 0 0" }, { "input": "2", "output": "1 1 0" }, { "input": "1597", "output": "233 377 987" }, { "input": "0", "output": "0 0 0" }, { "input": "1", "output": "1 0 0" }, { "input": "1", "output": "1 0 0" }, { "input": "2", "output": "1 1 0" }, { "input": "3", "output": "1 1 1" }, { "input": "5", "output": "1 1 3" }, { "input": "8", "output": "1 2 5" }, { "input": "13", "output": "2 3 8" }, { "input": "21", "output": "3 5 13" }, { "input": "34", "output": "5 8 21" }, { "input": "55", "output": "8 13 34" }, { "input": "89", "output": "13 21 55" }, { "input": "144", "output": "21 34 89" }, { "input": "233", "output": "34 55 144" }, { "input": "377", "output": "55 89 233" }, { "input": "610", "output": "89 144 377" }, { "input": "987", "output": "144 233 610" }, { "input": "1597", "output": "233 377 987" }, { "input": "2584", "output": "377 610 1597" }, { "input": "4181", "output": "610 987 2584" }, { "input": "6765", "output": "987 1597 4181" }, { "input": "10946", "output": "1597 2584 6765" }, { "input": "17711", "output": "2584 4181 10946" }, { "input": "28657", "output": "4181 6765 17711" }, { "input": "46368", "output": "6765 10946 28657" }, { "input": "75025", "output": "10946 17711 46368" }, { "input": "121393", "output": "17711 28657 75025" }, { "input": "196418", "output": "28657 46368 121393" }, { "input": "317811", "output": "46368 75025 196418" }, { "input": "514229", "output": "75025 121393 317811" }, { "input": "832040", "output": "121393 196418 514229" }, { "input": "1346269", "output": "196418 317811 832040" }, { "input": "2178309", "output": "317811 514229 1346269" }, { "input": "3524578", "output": "514229 832040 2178309" }, { "input": "5702887", "output": "832040 1346269 3524578" }, { "input": "9227465", "output": "1346269 2178309 5702887" }, { "input": "14930352", "output": "2178309 3524578 9227465" }, { "input": "24157817", "output": "3524578 5702887 14930352" }, { "input": "39088169", "output": "5702887 9227465 24157817" }, { "input": "63245986", "output": "9227465 14930352 39088169" }, { "input": "102334155", "output": "14930352 24157817 63245986" }, { "input": "165580141", "output": "24157817 39088169 102334155" }, { "input": "267914296", "output": "39088169 63245986 165580141" }, { "input": "433494437", "output": "63245986 102334155 267914296" }, { "input": "701408733", "output": "102334155 165580141 433494437" }, { "input": "701408733", "output": "102334155 165580141 433494437" }, { "input": "102334155", "output": "14930352 24157817 63245986" }, { "input": "63245986", "output": "9227465 14930352 39088169" } ]
1,666,727,240
2,147,483,647
PyPy 3-64
OK
TESTS
54
154
0
t = int(input()) print(0, end = " ") print(0, end = " ") print(t, end = " ")
Title: Hexadecimal's theorem Time Limit: None seconds Memory Limit: None megabytes Problem Description: Recently, a chaotic virus Hexadecimal advanced a new theorem which will shake the Universe. She thinks that each Fibonacci number can be represented as sum of three not necessary different Fibonacci numbers. Let's remember how Fibonacci numbers can be calculated. *F*0<==<=0, *F*1<==<=1, and all the next numbers are *F**i*<==<=*F**i*<=-<=2<=+<=*F**i*<=-<=1. So, Fibonacci numbers make a sequence of numbers: 0, 1, 1, 2, 3, 5, 8, 13, ... If you haven't run away from the PC in fear, you have to help the virus. Your task is to divide given Fibonacci number *n* by three not necessary different Fibonacci numbers or say that it is impossible. Input Specification: The input contains of a single integer *n* (0<=≤<=*n*<=&lt;<=109) — the number that should be represented by the rules described above. It is guaranteed that *n* is a Fibonacci number. Output Specification: Output three required numbers: *a*, *b* and *c*. If there is no answer for the test you have to print "I'm too stupid to solve this problem" without the quotes. If there are multiple answers, print any of them. Demo Input: ['3\n', '13\n'] Demo Output: ['1 1 1\n', '2 3 8\n'] Note: none
```python t = int(input()) print(0, end = " ") print(0, end = " ") print(t, end = " ") ```
3
665
C
Simple Strings
PROGRAMMING
1,300
[ "dp", "greedy", "strings" ]
null
null
zscoder loves simple strings! A string *t* is called simple if every pair of adjacent characters are distinct. For example ab, aba, zscoder are simple whereas aa, add are not simple. zscoder is given a string *s*. He wants to change a minimum number of characters so that the string *s* becomes simple. Help him with this task!
The only line contains the string *s* (1<=≤<=|*s*|<=≤<=2·105) — the string given to zscoder. The string *s* consists of only lowercase English letters.
Print the simple string *s*' — the string *s* after the minimal number of changes. If there are multiple solutions, you may output any of them. Note that the string *s*' should also consist of only lowercase English letters.
[ "aab\n", "caaab\n", "zscoder\n" ]
[ "bab\n", "cabab\n", "zscoder\n" ]
none
0
[ { "input": "aab", "output": "bab" }, { "input": "caaab", "output": "cabab" }, { "input": "zscoder", "output": "zscoder" }, { "input": "u", "output": "u" }, { "input": "h", "output": "h" }, { "input": "dtottttotd", "output": "dtotataotd" }, { "input": "rxxxrrxrxxxxxrrrrrxxxxrrrrxrxxrxxrxrxrrrxrrxrrxrxxxrxrrxrrxrxrxxxxxrxxxxrrrxrxxrxxrxxxrrrrrxrrxrrxrr", "output": "rxaxraxrxaxaxrararxaxararaxrxarxarxrxrarxraxraxrxaxrxraxraxrxrxaxaxrxaxararxrxarxarxaxrararxraxraxra" }, { "input": "aazz", "output": "baza" }, { "input": "zz", "output": "za" }, { "input": "gg", "output": "ga" }, { "input": "qasdasd", "output": "qasdasd" }, { "input": "aa", "output": "ba" }, { "input": "ab", "output": "ab" }, { "input": "zza", "output": "zba" }, { "input": "g", "output": "g" }, { "input": "nnop", "output": "naop" }, { "input": "xx", "output": "xa" } ]
1,615,765,274
2,147,483,647
Python 3
OK
TESTS
27
234
2,662,400
def next_char(ch): return chr(ord(ch) + 1 - 26 * (ord(ch) + 1 > ord('z'))) def change(x, L, R): nxt = next_char(x[L]) if R < len(x) and (R - L) % 2 == 0 and x[R] == nxt: nxt = next_char(nxt) x[L + 1: R:2] = [nxt] * ((R - L) // 2) def solution(s): x = list(s) idx = 1 while idx < len(x): if x[idx] == x[idx - 1]: L = idx - 1 while idx < len(x) and x[idx] == x[L]: idx += 1 change(x, L, idx) idx += 1 return ''.join(x) s = input() print(solution(s))
Title: Simple Strings Time Limit: None seconds Memory Limit: None megabytes Problem Description: zscoder loves simple strings! A string *t* is called simple if every pair of adjacent characters are distinct. For example ab, aba, zscoder are simple whereas aa, add are not simple. zscoder is given a string *s*. He wants to change a minimum number of characters so that the string *s* becomes simple. Help him with this task! Input Specification: The only line contains the string *s* (1<=≤<=|*s*|<=≤<=2·105) — the string given to zscoder. The string *s* consists of only lowercase English letters. Output Specification: Print the simple string *s*' — the string *s* after the minimal number of changes. If there are multiple solutions, you may output any of them. Note that the string *s*' should also consist of only lowercase English letters. Demo Input: ['aab\n', 'caaab\n', 'zscoder\n'] Demo Output: ['bab\n', 'cabab\n', 'zscoder\n'] Note: none
```python def next_char(ch): return chr(ord(ch) + 1 - 26 * (ord(ch) + 1 > ord('z'))) def change(x, L, R): nxt = next_char(x[L]) if R < len(x) and (R - L) % 2 == 0 and x[R] == nxt: nxt = next_char(nxt) x[L + 1: R:2] = [nxt] * ((R - L) // 2) def solution(s): x = list(s) idx = 1 while idx < len(x): if x[idx] == x[idx - 1]: L = idx - 1 while idx < len(x) and x[idx] == x[L]: idx += 1 change(x, L, idx) idx += 1 return ''.join(x) s = input() print(solution(s)) ```
3
624
A
Save Luke
PROGRAMMING
800
[ "math" ]
null
null
Luke Skywalker got locked up in a rubbish shredder between two presses. R2D2 is already working on his rescue, but Luke needs to stay alive as long as possible. For simplicity we will assume that everything happens on a straight line, the presses are initially at coordinates 0 and *L*, and they move towards each other with speed *v*1 and *v*2, respectively. Luke has width *d* and is able to choose any position between the presses. Luke dies as soon as the distance between the presses is less than his width. Your task is to determine for how long Luke can stay alive.
The first line of the input contains four integers *d*, *L*, *v*1, *v*2 (1<=≤<=*d*,<=*L*,<=*v*1,<=*v*2<=≤<=10<=000,<=*d*<=&lt;<=*L*) — Luke's width, the initial position of the second press and the speed of the first and second presses, respectively.
Print a single real value — the maximum period of time Luke can stay alive for. Your answer will be considered correct if its absolute or relative error does not exceed 10<=-<=6. Namely: let's assume that your answer is *a*, and the answer of the jury is *b*. The checker program will consider your answer correct, if .
[ "2 6 2 2\n", "1 9 1 2\n" ]
[ "1.00000000000000000000\n", "2.66666666666666650000\n" ]
In the first sample Luke should stay exactly in the middle of the segment, that is at coordinates [2;4], as the presses move with the same speed. In the second sample he needs to occupy the position <img align="middle" class="tex-formula" src="https://espresso.codeforces.com/71395c777960eaded59a9fdc428a9625f152605b.png" style="max-width: 100.0%;max-height: 100.0%;"/>. In this case both presses move to his edges at the same time.
500
[ { "input": "2 6 2 2", "output": "1.00000000000000000000" }, { "input": "1 9 1 2", "output": "2.66666666666666650000" }, { "input": "1 10000 1 1", "output": "4999.50000000000000000000" }, { "input": "9999 10000 10000 10000", "output": "0.00005000000000000000" }, { "input": "1023 2340 1029 3021", "output": "0.32518518518518519000" }, { "input": "2173 2176 10000 9989", "output": "0.00015008254539996998" }, { "input": "1 2 123 1", "output": "0.00806451612903225780" }, { "input": "123 1242 12 312", "output": "3.45370370370370370000" }, { "input": "2 9997 3 12", "output": "666.33333333333337000000" }, { "input": "1 10000 10000 10000", "output": "0.49995000000000001000" }, { "input": "3274 4728 888 4578", "output": "0.26600804976216613000" }, { "input": "4600 9696 5634 8248", "output": "0.36709407866301685000" }, { "input": "2255 7902 8891 429", "output": "0.60590128755364803000" }, { "input": "6745 9881 2149 9907", "output": "0.26011944260119441000" }, { "input": "4400 8021 6895 2089", "output": "0.40304986642920748000" }, { "input": "5726 9082 7448 3054", "output": "0.31955817939440107000" }, { "input": "3381 9769 4898 2532", "output": "0.85975773889636609000" }, { "input": "1036 6259 5451 4713", "output": "0.51387249114521838000" }, { "input": "5526 6455 197 4191", "output": "0.21171376481312670000" }, { "input": "1196 4082 4071 9971", "output": "0.20552627830793335000" }, { "input": "8850 9921 8816 9449", "output": "0.05863673692855187600" }, { "input": "3341 7299 2074 8927", "output": "0.35978547404781386000" }, { "input": "7831 8609 6820 2596", "output": "0.08262531860662701600" }, { "input": "2322 7212 77 4778", "output": "1.00720906282183310000" }, { "input": "9976 9996 4823 4255", "output": "0.00220312844238819110" }, { "input": "7631 9769 5377 6437", "output": "0.18097172845776197000" }, { "input": "8957 9525 8634 107", "output": "0.06498112344125385500" }, { "input": "6612 9565 3380 2288", "output": "0.52099505998588569000" }, { "input": "1103 6256 3934 9062", "output": "0.39650661742074483000" }, { "input": "1854 3280 1481 2140", "output": "0.39381386357359843000" } ]
1,454,607,574
2,074
Python 3
OK
TESTS
30
62
0
d,l,v1,v2=[int(i) for i in input().split()] time=(l-d)/(v1+v2) print(time)
Title: Save Luke Time Limit: None seconds Memory Limit: None megabytes Problem Description: Luke Skywalker got locked up in a rubbish shredder between two presses. R2D2 is already working on his rescue, but Luke needs to stay alive as long as possible. For simplicity we will assume that everything happens on a straight line, the presses are initially at coordinates 0 and *L*, and they move towards each other with speed *v*1 and *v*2, respectively. Luke has width *d* and is able to choose any position between the presses. Luke dies as soon as the distance between the presses is less than his width. Your task is to determine for how long Luke can stay alive. Input Specification: The first line of the input contains four integers *d*, *L*, *v*1, *v*2 (1<=≤<=*d*,<=*L*,<=*v*1,<=*v*2<=≤<=10<=000,<=*d*<=&lt;<=*L*) — Luke's width, the initial position of the second press and the speed of the first and second presses, respectively. Output Specification: Print a single real value — the maximum period of time Luke can stay alive for. Your answer will be considered correct if its absolute or relative error does not exceed 10<=-<=6. Namely: let's assume that your answer is *a*, and the answer of the jury is *b*. The checker program will consider your answer correct, if . Demo Input: ['2 6 2 2\n', '1 9 1 2\n'] Demo Output: ['1.00000000000000000000\n', '2.66666666666666650000\n'] Note: In the first sample Luke should stay exactly in the middle of the segment, that is at coordinates [2;4], as the presses move with the same speed. In the second sample he needs to occupy the position <img align="middle" class="tex-formula" src="https://espresso.codeforces.com/71395c777960eaded59a9fdc428a9625f152605b.png" style="max-width: 100.0%;max-height: 100.0%;"/>. In this case both presses move to his edges at the same time.
```python d,l,v1,v2=[int(i) for i in input().split()] time=(l-d)/(v1+v2) print(time) ```
3
546
A
Soldier and Bananas
PROGRAMMING
800
[ "brute force", "implementation", "math" ]
null
null
A soldier wants to buy *w* bananas in the shop. He has to pay *k* dollars for the first banana, 2*k* dollars for the second one and so on (in other words, he has to pay *i*·*k* dollars for the *i*-th banana). He has *n* dollars. How many dollars does he have to borrow from his friend soldier to buy *w* bananas?
The first line contains three positive integers *k*,<=*n*,<=*w* (1<=<=≤<=<=*k*,<=*w*<=<=≤<=<=1000, 0<=≤<=*n*<=≤<=109), the cost of the first banana, initial number of dollars the soldier has and number of bananas he wants.
Output one integer — the amount of dollars that the soldier must borrow from his friend. If he doesn't have to borrow money, output 0.
[ "3 17 4\n" ]
[ "13" ]
none
500
[ { "input": "3 17 4", "output": "13" }, { "input": "1 2 1", "output": "0" }, { "input": "1 1 1", "output": "0" }, { "input": "1 5 6", "output": "16" }, { "input": "1 1000000000 1", "output": "0" }, { "input": "1000 0 1000", "output": "500500000" }, { "input": "859 453892 543", "output": "126416972" }, { "input": "1000 1000000000 1000", "output": "0" }, { "input": "1000 500500000 1000", "output": "0" }, { "input": "1000 500500001 1000", "output": "0" }, { "input": "1000 500499999 1000", "output": "1" }, { "input": "634 87973 214", "output": "14497197" }, { "input": "432 10000 241", "output": "12587552" }, { "input": "111 111111111 111", "output": "0" }, { "input": "20 43 3", "output": "77" } ]
1,695,967,998
2,147,483,647
PyPy 3-64
OK
TESTS
15
62
0
k,n,w = map(int,input().split()) if (w*(w+1)//2)*k - n < 0: print(0) else: print((w*(w+1)//2)*k - n)
Title: Soldier and Bananas Time Limit: None seconds Memory Limit: None megabytes Problem Description: A soldier wants to buy *w* bananas in the shop. He has to pay *k* dollars for the first banana, 2*k* dollars for the second one and so on (in other words, he has to pay *i*·*k* dollars for the *i*-th banana). He has *n* dollars. How many dollars does he have to borrow from his friend soldier to buy *w* bananas? Input Specification: The first line contains three positive integers *k*,<=*n*,<=*w* (1<=<=≤<=<=*k*,<=*w*<=<=≤<=<=1000, 0<=≤<=*n*<=≤<=109), the cost of the first banana, initial number of dollars the soldier has and number of bananas he wants. Output Specification: Output one integer — the amount of dollars that the soldier must borrow from his friend. If he doesn't have to borrow money, output 0. Demo Input: ['3 17 4\n'] Demo Output: ['13'] Note: none
```python k,n,w = map(int,input().split()) if (w*(w+1)//2)*k - n < 0: print(0) else: print((w*(w+1)//2)*k - n) ```
3
883
M
Quadcopter Competition
PROGRAMMING
1,100
[ "greedy", "math" ]
null
null
Polycarp takes part in a quadcopter competition. According to the rules a flying robot should: - start the race from some point of a field, - go around the flag, - close cycle returning back to the starting point. Polycarp knows the coordinates of the starting point (*x*1,<=*y*1) and the coordinates of the point where the flag is situated (*x*2,<=*y*2). Polycarp’s quadcopter can fly only parallel to the sides of the field each tick changing exactly one coordinate by 1. It means that in one tick the quadcopter can fly from the point (*x*,<=*y*) to any of four points: (*x*<=-<=1,<=*y*), (*x*<=+<=1,<=*y*), (*x*,<=*y*<=-<=1) or (*x*,<=*y*<=+<=1). Thus the quadcopter path is a closed cycle starting and finishing in (*x*1,<=*y*1) and containing the point (*x*2,<=*y*2) strictly inside. What is the minimal length of the quadcopter path?
The first line contains two integer numbers *x*1 and *y*1 (<=-<=100<=≤<=*x*1,<=*y*1<=≤<=100) — coordinates of the quadcopter starting (and finishing) point. The second line contains two integer numbers *x*2 and *y*2 (<=-<=100<=≤<=*x*2,<=*y*2<=≤<=100) — coordinates of the flag. It is guaranteed that the quadcopter starting point and the flag do not coincide.
Print the length of minimal path of the quadcopter to surround the flag and return back.
[ "1 5\n5 2\n", "0 1\n0 0\n" ]
[ "18\n", "8\n" ]
none
0
[ { "input": "1 5\n5 2", "output": "18" }, { "input": "0 1\n0 0", "output": "8" }, { "input": "-100 -100\n100 100", "output": "804" }, { "input": "-100 -100\n-100 100", "output": "406" }, { "input": "-100 -100\n100 -100", "output": "406" }, { "input": "100 -100\n-100 -100", "output": "406" }, { "input": "100 -100\n-100 100", "output": "804" }, { "input": "100 -100\n100 100", "output": "406" }, { "input": "-100 100\n-100 -100", "output": "406" }, { "input": "-100 100\n100 -100", "output": "804" }, { "input": "-100 100\n100 100", "output": "406" }, { "input": "100 100\n-100 -100", "output": "804" }, { "input": "100 100\n-100 100", "output": "406" }, { "input": "100 100\n100 -100", "output": "406" }, { "input": "45 -43\n45 -44", "output": "8" }, { "input": "76 76\n75 75", "output": "8" }, { "input": "-34 -56\n-35 -56", "output": "8" }, { "input": "56 -7\n55 -6", "output": "8" }, { "input": "43 -11\n43 -10", "output": "8" }, { "input": "1 -3\n2 -2", "output": "8" }, { "input": "55 71\n56 71", "output": "8" }, { "input": "54 -87\n55 -88", "output": "8" }, { "input": "22 98\n100 33", "output": "290" }, { "input": "37 84\n-83 5", "output": "402" }, { "input": "52 74\n-73 -39", "output": "480" }, { "input": "66 51\n51 -71", "output": "278" }, { "input": "-31 44\n73 86", "output": "296" }, { "input": "-20 34\n-9 55", "output": "68" }, { "input": "-5 19\n-91 -86", "output": "386" }, { "input": "-82 5\n28 -17", "output": "268" }, { "input": "-90 -100\n55 48", "output": "590" }, { "input": "-75 -14\n-32 8", "output": "134" }, { "input": "-53 -28\n-13 -28", "output": "86" }, { "input": "-42 -46\n10 -64", "output": "144" }, { "input": "55 -42\n25 2", "output": "152" }, { "input": "70 -64\n-54 70", "output": "520" }, { "input": "93 -78\n-32 -75", "output": "260" }, { "input": "8 -93\n79 -6", "output": "320" }, { "input": "50 43\n54 10", "output": "78" }, { "input": "65 32\n-37 71", "output": "286" }, { "input": "80 18\n-15 -58", "output": "346" }, { "input": "94 92\n4 -1", "output": "370" }, { "input": "-10 96\n27 64", "output": "142" }, { "input": "-96 78\n-56 32", "output": "176" }, { "input": "-81 64\n-37 -8", "output": "236" }, { "input": "-58 49\n74 -40", "output": "446" }, { "input": "-62 -55\n1 18", "output": "276" }, { "input": "-51 -69\n-78 86", "output": "368" }, { "input": "-29 -80\n-56 -47", "output": "124" }, { "input": "-14 -94\n55 -90", "output": "150" }, { "input": "83 -2\n82 83", "output": "176" }, { "input": "98 -16\n-96 40", "output": "504" }, { "input": "17 -34\n-86 -93", "output": "328" }, { "input": "32 -48\n33 -37", "output": "28" }, { "input": "74 87\n3 92", "output": "156" }, { "input": "89 73\n-80 49", "output": "390" }, { "input": "4 58\n-61 -80", "output": "410" }, { "input": "15 48\n50 -20", "output": "210" }, { "input": "-82 45\n81 46", "output": "332" }, { "input": "-68 26\n-2 6", "output": "176" }, { "input": "-53 4\n-92 -31", "output": "152" }, { "input": "-30 94\n31 -58", "output": "430" }, { "input": "-38 -11\n58 99", "output": "416" }, { "input": "-27 -25\n-28 68", "output": "192" }, { "input": "-5 -39\n-10 -77", "output": "90" }, { "input": "-90 -54\n9 -9", "output": "292" }, { "input": "7 -57\n28 61", "output": "282" }, { "input": "18 -67\n-51 21", "output": "318" }, { "input": "41 -82\n-33 -15", "output": "286" }, { "input": "56 -8\n91 -55", "output": "168" }, { "input": "-23 -13\n-24 -12", "output": "8" }, { "input": "1 32\n1 33", "output": "8" }, { "input": "25 76\n24 76", "output": "8" }, { "input": "-29 -78\n-28 -79", "output": "8" }, { "input": "-77 19\n-76 19", "output": "8" }, { "input": "-53 63\n-53 62", "output": "8" }, { "input": "86 12\n86 11", "output": "8" }, { "input": "14 56\n13 56", "output": "8" }, { "input": "63 41\n62 40", "output": "8" }, { "input": "0 -4\n1 -4", "output": "8" }, { "input": "24 41\n24 42", "output": "8" }, { "input": "48 85\n49 86", "output": "8" }, { "input": "0 0\n0 1", "output": "8" }, { "input": "0 0\n1 0", "output": "8" }, { "input": "0 0\n1 1", "output": "8" }, { "input": "0 1\n0 0", "output": "8" }, { "input": "0 1\n1 0", "output": "8" }, { "input": "0 1\n1 1", "output": "8" }, { "input": "1 0\n0 0", "output": "8" }, { "input": "1 0\n0 1", "output": "8" }, { "input": "1 0\n1 1", "output": "8" }, { "input": "1 1\n0 0", "output": "8" }, { "input": "1 1\n0 1", "output": "8" }, { "input": "1 1\n1 0", "output": "8" }, { "input": "100 100\n99 -100", "output": "406" }, { "input": "100 100\n-100 99", "output": "406" }, { "input": "-100 -100\n-99 100", "output": "406" }, { "input": "-100 -100\n100 -99", "output": "406" }, { "input": "0 0\n1 2", "output": "10" }, { "input": "0 0\n2 1", "output": "10" } ]
1,660,928,060
2,147,483,647
PyPy 3
OK
TESTS
100
93
0
x1,y1=map(int,input().split()) x2,y2=map(int,input().split()) if y1==y2: print(2*(2+abs(x2-x1)+1)) elif x1==x2: print(2*(2+abs(y2-y1)+1)) elif y2<y1: if x2>x1: x2+=1 y2-=1 print(2*(abs(x2-x1)+abs(y2-y1))) else: y2-=1 x2-=1 print(2*(abs(x2-x1)+abs(y2-y1))) else: if x2>x1: x2+=1 y2+=1 print(2*(abs(x2-x1)+abs(y2-y1))) else: y2+=1 x2-=1 print(2*(abs(x2-x1)+abs(y2-y1)))
Title: Quadcopter Competition Time Limit: None seconds Memory Limit: None megabytes Problem Description: Polycarp takes part in a quadcopter competition. According to the rules a flying robot should: - start the race from some point of a field, - go around the flag, - close cycle returning back to the starting point. Polycarp knows the coordinates of the starting point (*x*1,<=*y*1) and the coordinates of the point where the flag is situated (*x*2,<=*y*2). Polycarp’s quadcopter can fly only parallel to the sides of the field each tick changing exactly one coordinate by 1. It means that in one tick the quadcopter can fly from the point (*x*,<=*y*) to any of four points: (*x*<=-<=1,<=*y*), (*x*<=+<=1,<=*y*), (*x*,<=*y*<=-<=1) or (*x*,<=*y*<=+<=1). Thus the quadcopter path is a closed cycle starting and finishing in (*x*1,<=*y*1) and containing the point (*x*2,<=*y*2) strictly inside. What is the minimal length of the quadcopter path? Input Specification: The first line contains two integer numbers *x*1 and *y*1 (<=-<=100<=≤<=*x*1,<=*y*1<=≤<=100) — coordinates of the quadcopter starting (and finishing) point. The second line contains two integer numbers *x*2 and *y*2 (<=-<=100<=≤<=*x*2,<=*y*2<=≤<=100) — coordinates of the flag. It is guaranteed that the quadcopter starting point and the flag do not coincide. Output Specification: Print the length of minimal path of the quadcopter to surround the flag and return back. Demo Input: ['1 5\n5 2\n', '0 1\n0 0\n'] Demo Output: ['18\n', '8\n'] Note: none
```python x1,y1=map(int,input().split()) x2,y2=map(int,input().split()) if y1==y2: print(2*(2+abs(x2-x1)+1)) elif x1==x2: print(2*(2+abs(y2-y1)+1)) elif y2<y1: if x2>x1: x2+=1 y2-=1 print(2*(abs(x2-x1)+abs(y2-y1))) else: y2-=1 x2-=1 print(2*(abs(x2-x1)+abs(y2-y1))) else: if x2>x1: x2+=1 y2+=1 print(2*(abs(x2-x1)+abs(y2-y1))) else: y2+=1 x2-=1 print(2*(abs(x2-x1)+abs(y2-y1))) ```
3
991
B
Getting an A
PROGRAMMING
900
[ "greedy", "sortings" ]
null
null
Translator's note: in Russia's most widespread grading system, there are four grades: 5, 4, 3, 2, the higher the better, roughly corresponding to A, B, C and F respectively in American grading system. The term is coming to an end and students start thinking about their grades. Today, a professor told his students that the grades for his course would be given out automatically  — he would calculate the simple average (arithmetic mean) of all grades given out for lab works this term and round to the nearest integer. The rounding would be done in favour of the student — $4.5$ would be rounded up to $5$ (as in example 3), but $4.4$ would be rounded down to $4$. This does not bode well for Vasya who didn't think those lab works would influence anything, so he may receive a grade worse than $5$ (maybe even the dreaded $2$). However, the professor allowed him to redo some of his works of Vasya's choosing to increase his average grade. Vasya wants to redo as as few lab works as possible in order to get $5$ for the course. Of course, Vasya will get $5$ for the lab works he chooses to redo. Help Vasya — calculate the minimum amount of lab works Vasya has to redo.
The first line contains a single integer $n$ — the number of Vasya's grades ($1 \leq n \leq 100$). The second line contains $n$ integers from $2$ to $5$ — Vasya's grades for his lab works.
Output a single integer — the minimum amount of lab works that Vasya has to redo. It can be shown that Vasya can always redo enough lab works to get a $5$.
[ "3\n4 4 4\n", "4\n5 4 5 5\n", "4\n5 3 3 5\n" ]
[ "2\n", "0\n", "1\n" ]
In the first sample, it is enough to redo two lab works to make two $4$s into $5$s. In the second sample, Vasya's average is already $4.75$ so he doesn't have to redo anything to get a $5$. In the second sample Vasya has to redo one lab work to get rid of one of the $3$s, that will make the average exactly $4.5$ so the final grade would be $5$.
1,000
[ { "input": "3\n4 4 4", "output": "2" }, { "input": "4\n5 4 5 5", "output": "0" }, { "input": "4\n5 3 3 5", "output": "1" }, { "input": "1\n5", "output": "0" }, { "input": "4\n3 2 5 4", "output": "2" }, { "input": "5\n5 4 3 2 5", "output": "2" }, { "input": "8\n5 4 2 5 5 2 5 5", "output": "1" }, { "input": "5\n5 5 2 5 5", "output": "1" }, { "input": "6\n5 5 5 5 5 2", "output": "0" }, { "input": "6\n2 2 2 2 2 2", "output": "5" }, { "input": "100\n3 2 4 3 3 3 4 2 3 5 5 2 5 2 3 2 4 4 4 5 5 4 2 5 4 3 2 5 3 4 3 4 2 4 5 4 2 4 3 4 5 2 5 3 3 4 2 2 4 4 4 5 4 3 3 3 2 5 2 2 2 3 5 4 3 2 4 5 5 5 2 2 4 2 3 3 3 5 3 2 2 4 5 5 4 5 5 4 2 3 2 2 2 2 5 3 5 2 3 4", "output": "40" }, { "input": "1\n2", "output": "1" }, { "input": "1\n3", "output": "1" }, { "input": "1\n4", "output": "1" }, { "input": "4\n3 2 5 5", "output": "1" }, { "input": "6\n4 3 3 3 3 4", "output": "4" }, { "input": "8\n3 3 5 3 3 3 5 5", "output": "3" }, { "input": "10\n2 4 5 5 5 5 2 3 3 2", "output": "3" }, { "input": "20\n5 2 5 2 2 2 2 2 5 2 2 5 2 5 5 2 2 5 2 2", "output": "10" }, { "input": "25\n4 4 4 4 3 4 3 3 3 3 3 4 4 3 4 4 4 4 4 3 3 3 4 3 4", "output": "13" }, { "input": "30\n4 2 4 2 4 2 2 4 4 4 4 2 4 4 4 2 2 2 2 4 2 4 4 4 2 4 2 4 2 2", "output": "15" }, { "input": "52\n5 3 4 4 4 3 5 3 4 5 3 4 4 3 5 5 4 3 3 3 4 5 4 4 5 3 5 3 5 4 5 5 4 3 4 5 3 4 3 3 4 4 4 3 5 3 4 5 3 5 4 5", "output": "14" }, { "input": "77\n5 3 2 3 2 3 2 3 5 2 2 3 3 3 3 5 3 3 2 2 2 5 5 5 5 3 2 2 5 2 3 2 2 5 2 5 3 3 2 2 5 5 2 3 3 2 3 3 3 2 5 5 2 2 3 3 5 5 2 2 5 5 3 3 5 5 2 2 5 2 2 5 5 5 2 5 2", "output": "33" }, { "input": "55\n3 4 2 3 3 2 4 4 3 3 4 2 4 4 3 3 2 3 2 2 3 3 2 3 2 3 2 4 4 3 2 3 2 3 3 2 2 4 2 4 4 3 4 3 2 4 3 2 4 2 2 3 2 3 4", "output": "34" }, { "input": "66\n5 4 5 5 4 4 4 4 4 2 5 5 2 4 2 2 2 5 4 4 4 4 5 2 2 5 5 2 2 4 4 2 4 2 2 5 2 5 4 5 4 5 4 4 2 5 2 4 4 4 2 2 5 5 5 5 4 4 4 4 4 2 4 5 5 5", "output": "16" }, { "input": "99\n2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2", "output": "83" }, { "input": "100\n2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2", "output": "84" }, { "input": "99\n3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3", "output": "75" }, { "input": "100\n3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3", "output": "75" }, { "input": "99\n2 2 3 3 3 3 3 2 2 3 2 3 2 3 2 2 3 2 3 2 3 3 3 3 2 2 2 2 3 2 3 3 3 3 3 2 3 3 3 3 2 3 2 3 3 3 2 3 2 3 3 3 3 2 2 3 2 3 2 3 2 3 2 2 2 3 3 2 3 2 2 2 2 2 2 2 2 3 3 3 3 2 3 2 3 3 2 3 2 3 2 3 3 2 2 2 3 2 3", "output": "75" }, { "input": "100\n3 2 3 3 2 2 3 2 2 3 3 2 3 2 2 2 2 2 3 2 2 2 3 2 3 3 2 2 3 2 2 2 2 3 2 3 3 2 2 3 2 2 3 2 3 2 2 3 2 3 2 2 3 2 2 3 3 3 3 3 2 2 3 2 3 3 2 2 3 2 2 2 3 2 2 3 3 2 2 3 3 3 3 2 3 2 2 2 3 3 2 2 3 2 2 2 2 3 2 2", "output": "75" }, { "input": "99\n4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4", "output": "50" }, { "input": "100\n4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4", "output": "50" }, { "input": "99\n2 2 2 2 4 2 2 2 2 4 4 4 4 2 4 4 2 2 4 4 2 2 2 4 4 2 4 4 2 4 4 2 2 2 4 4 2 2 2 2 4 4 4 2 2 2 4 4 2 4 2 4 2 2 4 2 4 4 4 4 4 2 2 4 4 4 2 2 2 2 4 2 4 2 2 2 2 2 2 4 4 2 4 2 2 4 2 2 2 2 2 4 2 4 2 2 4 4 4", "output": "54" }, { "input": "100\n4 2 4 4 2 4 2 2 4 4 4 4 4 4 4 4 4 2 4 4 2 2 4 4 2 2 4 4 2 2 2 4 4 2 4 4 2 4 2 2 4 4 2 4 2 4 4 4 2 2 2 2 2 2 2 4 2 2 2 4 4 4 2 2 2 2 4 2 2 2 2 2 2 2 4 4 4 4 4 4 4 4 4 2 2 2 2 2 2 2 2 4 4 4 4 2 4 2 2 4", "output": "50" }, { "input": "99\n4 3 4 4 4 4 4 3 4 3 3 4 3 3 4 4 3 3 3 4 3 4 3 3 4 3 3 3 3 4 3 4 4 3 4 4 3 3 4 4 4 3 3 3 4 4 3 3 4 3 4 3 4 3 4 3 3 3 3 4 3 4 4 4 4 4 4 3 4 4 3 3 3 3 3 3 3 3 4 3 3 3 4 4 4 4 4 4 3 3 3 3 4 4 4 3 3 4 3", "output": "51" }, { "input": "100\n3 3 4 4 4 4 4 3 4 4 3 3 3 3 4 4 4 4 4 4 3 3 3 4 3 4 3 4 3 3 4 3 3 3 3 3 3 3 3 4 3 4 3 3 4 3 3 3 4 4 3 4 4 3 3 4 4 4 4 4 4 3 4 4 3 4 3 3 3 4 4 3 3 4 4 3 4 4 4 3 3 4 3 3 4 3 4 3 4 3 3 4 4 4 3 3 4 3 3 4", "output": "51" }, { "input": "99\n3 3 4 4 4 2 4 4 3 2 3 4 4 4 2 2 2 3 2 4 4 2 4 3 2 2 2 4 2 3 4 3 4 2 3 3 4 2 3 3 2 3 4 4 3 2 4 3 4 3 3 3 3 3 4 4 3 3 4 4 2 4 3 4 3 2 3 3 3 4 4 2 4 4 2 3 4 2 3 3 3 4 2 2 3 2 4 3 2 3 3 2 3 4 2 3 3 2 3", "output": "58" }, { "input": "100\n2 2 4 2 2 3 2 3 4 4 3 3 4 4 4 2 3 2 2 3 4 2 3 2 4 3 4 2 3 3 3 2 4 3 3 2 2 3 2 4 4 2 4 3 4 4 3 3 3 2 4 2 2 2 2 2 2 3 2 3 2 3 4 4 4 2 2 3 4 4 3 4 3 3 2 3 3 3 4 3 2 3 3 2 4 2 3 3 4 4 3 3 4 3 4 3 3 4 3 3", "output": "61" }, { "input": "99\n5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5", "output": "0" }, { "input": "100\n5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5", "output": "0" }, { "input": "99\n2 2 2 2 2 5 2 2 5 2 5 2 5 2 2 2 2 2 5 2 2 2 5 2 2 5 2 2 2 5 5 2 5 2 2 5 2 5 2 2 5 5 2 2 2 2 5 5 2 2 2 5 2 2 5 2 2 2 2 2 5 5 5 5 2 2 5 2 5 2 2 2 2 2 5 2 2 5 5 2 2 2 2 2 5 5 2 2 5 5 2 2 2 2 5 5 5 2 5", "output": "48" }, { "input": "100\n5 5 2 2 2 2 2 2 5 5 2 5 2 2 2 2 5 2 5 2 5 5 2 5 5 2 2 2 2 2 2 5 2 2 2 5 2 2 5 2 2 5 5 5 2 5 5 5 5 5 5 2 2 5 2 2 5 5 5 5 5 2 5 2 5 2 2 2 5 2 5 2 5 5 2 5 5 2 2 5 2 5 5 2 5 2 2 5 2 2 2 5 2 2 2 2 5 5 2 5", "output": "38" }, { "input": "99\n5 3 3 3 5 3 3 3 3 3 3 3 3 5 3 3 3 3 3 3 3 3 5 3 3 3 5 5 3 5 5 3 3 5 5 5 3 5 3 3 3 3 5 3 3 5 5 3 5 5 5 3 5 3 5 3 5 5 5 5 3 3 3 5 3 5 3 3 3 5 5 5 5 5 3 5 5 3 3 5 5 3 5 5 3 5 5 3 3 5 5 5 3 3 3 5 3 3 3", "output": "32" }, { "input": "100\n3 3 3 5 3 3 3 3 3 3 5 5 5 5 3 3 3 3 5 3 3 3 3 3 5 3 5 3 3 5 5 5 5 5 5 3 3 5 3 3 5 3 5 5 5 3 5 3 3 3 3 3 3 3 3 3 3 3 5 5 3 5 3 5 5 3 5 3 3 5 3 5 5 5 5 3 5 3 3 3 5 5 5 3 3 3 5 3 5 5 5 3 3 3 5 3 5 5 3 5", "output": "32" }, { "input": "99\n5 3 5 5 3 3 3 2 2 5 2 5 3 2 5 2 5 2 3 5 3 2 3 2 5 5 2 2 3 3 5 5 3 5 5 2 3 3 5 2 2 5 3 2 5 2 3 5 5 2 5 2 2 5 3 3 5 3 3 5 3 2 3 5 3 2 3 2 3 2 2 2 2 5 2 2 3 2 5 5 5 3 3 2 5 3 5 5 5 2 3 2 5 5 2 5 2 5 3", "output": "39" }, { "input": "100\n3 5 3 3 5 5 3 3 2 5 5 3 3 3 2 2 3 2 5 3 2 2 3 3 3 3 2 5 3 2 3 3 5 2 2 2 3 2 3 5 5 3 2 5 2 2 5 5 3 5 5 5 2 2 5 5 3 3 2 2 2 5 3 3 2 2 3 5 3 2 3 5 5 3 2 3 5 5 3 3 2 3 5 2 5 5 5 5 5 5 3 5 3 2 3 3 2 5 2 2", "output": "42" }, { "input": "99\n4 4 4 5 4 4 5 5 4 4 5 5 5 4 5 4 5 5 5 4 4 5 5 5 5 4 5 5 5 4 4 5 5 4 5 4 4 4 5 5 5 5 4 4 5 4 4 5 4 4 4 4 5 5 5 4 5 4 5 5 5 5 5 4 5 4 5 4 4 4 4 5 5 5 4 5 5 4 4 5 5 5 4 5 4 4 5 5 4 5 5 5 5 4 5 5 4 4 4", "output": "0" }, { "input": "100\n4 4 5 5 5 5 5 5 4 4 5 5 4 4 5 5 4 5 4 4 4 4 4 4 4 4 5 5 5 5 5 4 4 4 4 4 5 4 4 5 4 4 4 5 5 5 4 5 5 5 5 5 5 4 4 4 4 4 4 5 5 4 5 4 4 5 4 4 4 4 5 5 4 5 5 4 4 4 5 5 5 5 4 5 5 5 4 4 5 5 5 4 5 4 5 4 4 5 5 4", "output": "1" }, { "input": "99\n2 2 2 5 2 2 2 2 2 4 4 5 5 2 2 4 2 5 2 2 2 5 2 2 5 5 5 4 5 5 4 4 2 2 5 2 2 2 2 5 5 2 2 4 4 4 2 2 2 5 2 4 4 2 4 2 4 2 5 4 2 2 5 2 4 4 4 2 5 2 2 5 4 2 2 5 5 5 2 4 5 4 5 5 4 4 4 5 4 5 4 5 4 2 5 2 2 2 4", "output": "37" }, { "input": "100\n4 4 5 2 2 5 4 5 2 2 2 4 2 5 4 4 2 2 4 5 2 4 2 5 5 4 2 4 4 2 2 5 4 2 5 4 5 2 5 2 4 2 5 4 5 2 2 2 5 2 5 2 5 2 2 4 4 5 5 5 5 5 5 5 4 2 2 2 4 2 2 4 5 5 4 5 4 2 2 2 2 4 2 2 5 5 4 2 2 5 4 5 5 5 4 5 5 5 2 2", "output": "31" }, { "input": "99\n5 3 4 4 5 4 4 4 3 5 4 3 3 4 3 5 5 5 5 4 3 3 5 3 4 5 3 5 4 4 3 5 5 4 4 4 4 3 5 3 3 5 5 5 5 5 4 3 4 4 3 5 5 3 3 4 4 4 5 4 4 5 4 4 4 4 5 5 4 3 3 4 3 5 3 3 3 3 4 4 4 4 3 4 5 4 4 5 5 5 3 4 5 3 4 5 4 3 3", "output": "24" }, { "input": "100\n5 4 4 4 5 5 5 4 5 4 4 3 3 4 4 4 5 4 5 5 3 5 5 4 5 5 5 4 4 5 3 5 3 5 3 3 5 4 4 5 5 4 5 5 3 4 5 4 4 3 4 4 3 3 5 4 5 4 5 3 4 5 3 4 5 4 3 5 4 5 4 4 4 3 4 5 3 4 3 5 3 4 4 4 3 4 4 5 3 3 4 4 5 5 4 3 4 4 3 5", "output": "19" }, { "input": "99\n2 2 5 2 5 3 4 2 3 5 4 3 4 2 5 3 2 2 4 2 4 4 5 4 4 5 2 5 5 3 2 3 2 2 3 4 5 3 5 2 5 4 4 5 4 2 2 3 2 3 3 3 4 4 3 2 2 4 4 2 5 3 5 3 5 4 4 4 5 4 5 2 2 5 4 4 4 3 3 2 5 2 5 2 3 2 5 2 2 5 5 3 4 5 3 4 4 4 4", "output": "37" }, { "input": "2\n5 2", "output": "1" }, { "input": "5\n2 2 2 2 2", "output": "5" }, { "input": "100\n2 3 2 2 2 3 2 3 3 3 3 3 2 3 3 2 2 3 3 2 3 2 3 2 3 4 4 4 3 3 3 3 3 4 4 3 3 4 3 2 3 4 3 3 3 3 2 3 4 3 4 3 3 2 4 4 2 4 4 3 3 3 3 4 3 2 3 4 3 4 4 4 4 4 3 2 2 3 4 2 4 4 4 2 2 4 2 2 3 2 2 4 4 3 4 2 3 3 2 2", "output": "61" }, { "input": "100\n5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4", "output": "1" }, { "input": "100\n5 4 3 5 3 5 4 2 3 3 4 5 4 5 5 4 2 4 2 2 5 2 5 3 4 4 4 5 5 5 3 4 4 4 3 5 3 2 5 4 3 3 3 5 2 3 4 2 5 4 3 4 5 2 2 3 4 4 2 3 3 3 2 5 2 3 4 3 3 3 2 5 4 3 4 5 4 2 5 4 5 2 2 4 2 2 5 5 4 5 2 2 2 2 5 2 4 4 4 5", "output": "35" }, { "input": "2\n2 2", "output": "2" }, { "input": "20\n4 4 4 4 4 4 4 4 4 4 4 5 5 5 5 5 5 5 5 5", "output": "1" } ]
1,632,241,548
2,147,483,647
Python 3
OK
TESTS
61
77
6,963,200
n=int(input()) x=sorted(list(map(int,input().split()))) if sum(x)>=4.5*n: print(0) else: xcount=0 for i in range(n): if x[i]!=5: xcount+=1 for i in range(n): x[i]=5 if sum(x)>=4.5*n: break ycount=0 for i in range(n): if x[i]!=5: ycount+=1 print(xcount-ycount)
Title: Getting an A Time Limit: None seconds Memory Limit: None megabytes Problem Description: Translator's note: in Russia's most widespread grading system, there are four grades: 5, 4, 3, 2, the higher the better, roughly corresponding to A, B, C and F respectively in American grading system. The term is coming to an end and students start thinking about their grades. Today, a professor told his students that the grades for his course would be given out automatically  — he would calculate the simple average (arithmetic mean) of all grades given out for lab works this term and round to the nearest integer. The rounding would be done in favour of the student — $4.5$ would be rounded up to $5$ (as in example 3), but $4.4$ would be rounded down to $4$. This does not bode well for Vasya who didn't think those lab works would influence anything, so he may receive a grade worse than $5$ (maybe even the dreaded $2$). However, the professor allowed him to redo some of his works of Vasya's choosing to increase his average grade. Vasya wants to redo as as few lab works as possible in order to get $5$ for the course. Of course, Vasya will get $5$ for the lab works he chooses to redo. Help Vasya — calculate the minimum amount of lab works Vasya has to redo. Input Specification: The first line contains a single integer $n$ — the number of Vasya's grades ($1 \leq n \leq 100$). The second line contains $n$ integers from $2$ to $5$ — Vasya's grades for his lab works. Output Specification: Output a single integer — the minimum amount of lab works that Vasya has to redo. It can be shown that Vasya can always redo enough lab works to get a $5$. Demo Input: ['3\n4 4 4\n', '4\n5 4 5 5\n', '4\n5 3 3 5\n'] Demo Output: ['2\n', '0\n', '1\n'] Note: In the first sample, it is enough to redo two lab works to make two $4$s into $5$s. In the second sample, Vasya's average is already $4.75$ so he doesn't have to redo anything to get a $5$. In the second sample Vasya has to redo one lab work to get rid of one of the $3$s, that will make the average exactly $4.5$ so the final grade would be $5$.
```python n=int(input()) x=sorted(list(map(int,input().split()))) if sum(x)>=4.5*n: print(0) else: xcount=0 for i in range(n): if x[i]!=5: xcount+=1 for i in range(n): x[i]=5 if sum(x)>=4.5*n: break ycount=0 for i in range(n): if x[i]!=5: ycount+=1 print(xcount-ycount) ```
3
242
C
King's Path
PROGRAMMING
1,800
[ "dfs and similar", "graphs", "hashing", "shortest paths" ]
null
null
The black king is standing on a chess field consisting of 109 rows and 109 columns. We will consider the rows of the field numbered with integers from 1 to 109 from top to bottom. The columns are similarly numbered with integers from 1 to 109 from left to right. We will denote a cell of the field that is located in the *i*-th row and *j*-th column as (*i*,<=*j*). You know that some squares of the given chess field are allowed. All allowed cells of the chess field are given as *n* segments. Each segment is described by three integers *r**i*,<=*a**i*,<=*b**i* (*a**i*<=≤<=*b**i*), denoting that cells in columns from number *a**i* to number *b**i* inclusive in the *r**i*-th row are allowed. Your task is to find the minimum number of moves the king needs to get from square (*x*0,<=*y*0) to square (*x*1,<=*y*1), provided that he only moves along the allowed cells. In other words, the king can be located only on allowed cells on his way. Let us remind you that a chess king can move to any of the neighboring cells in one move. Two cells of a chess field are considered neighboring if they share at least one point.
The first line contains four space-separated integers *x*0,<=*y*0,<=*x*1,<=*y*1 (1<=≤<=*x*0,<=*y*0,<=*x*1,<=*y*1<=≤<=109), denoting the initial and the final positions of the king. The second line contains a single integer *n* (1<=≤<=*n*<=≤<=105), denoting the number of segments of allowed cells. Next *n* lines contain the descriptions of these segments. The *i*-th line contains three space-separated integers *r**i*,<=*a**i*,<=*b**i* (1<=≤<=*r**i*,<=*a**i*,<=*b**i*<=≤<=109,<=*a**i*<=≤<=*b**i*), denoting that cells in columns from number *a**i* to number *b**i* inclusive in the *r**i*-th row are allowed. Note that the segments of the allowed cells can intersect and embed arbitrarily. It is guaranteed that the king's initial and final position are allowed cells. It is guaranteed that the king's initial and the final positions do not coincide. It is guaranteed that the total length of all given segments doesn't exceed 105.
If there is no path between the initial and final position along allowed cells, print -1. Otherwise print a single integer — the minimum number of moves the king needs to get from the initial position to the final one.
[ "5 7 6 11\n3\n5 3 8\n6 7 11\n5 2 5\n", "3 4 3 10\n3\n3 1 4\n4 5 9\n3 10 10\n", "1 1 2 10\n2\n1 1 3\n2 6 10\n" ]
[ "4\n", "6\n", "-1\n" ]
none
1,500
[ { "input": "5 7 6 11\n3\n5 3 8\n6 7 11\n5 2 5", "output": "4" }, { "input": "3 4 3 10\n3\n3 1 4\n4 5 9\n3 10 10", "output": "6" }, { "input": "1 1 2 10\n2\n1 1 3\n2 6 10", "output": "-1" }, { "input": "9 8 7 8\n9\n10 6 6\n10 6 6\n7 7 8\n9 5 6\n8 9 9\n9 5 5\n9 8 8\n8 5 6\n9 10 10", "output": "2" }, { "input": "6 15 7 15\n9\n6 15 15\n7 14 14\n6 15 15\n9 14 14\n7 14 16\n6 15 15\n6 15 15\n7 14 14\n8 15 15", "output": "1" }, { "input": "13 16 20 10\n18\n13 16 16\n20 10 10\n19 10 10\n12 15 15\n20 10 10\n18 11 11\n19 10 10\n19 10 10\n20 10 10\n19 10 10\n20 10 10\n20 10 10\n19 10 10\n18 11 11\n13 16 16\n12 15 15\n19 10 10\n19 10 10", "output": "-1" }, { "input": "89 29 88 30\n16\n87 31 31\n14 95 95\n98 88 89\n96 88 88\n14 97 97\n13 97 98\n100 88 88\n88 32 32\n99 88 89\n90 29 29\n87 31 31\n15 94 96\n89 29 29\n88 32 32\n97 89 89\n88 29 30", "output": "1" }, { "input": "30 14 39 19\n31\n35 7 11\n37 11 12\n32 13 13\n37 5 6\n46 13 13\n37 14 14\n31 13 13\n43 13 19\n45 15 19\n46 13 13\n32 17 17\n41 14 19\n30 14 14\n43 13 17\n34 16 18\n44 11 19\n38 13 13\n40 12 20\n37 16 18\n46 16 18\n34 10 14\n36 9 10\n36 15 19\n38 15 19\n42 13 19\n33 14 15\n35 15 19\n33 17 18\n39 12 20\n36 5 7\n45 12 12", "output": "9" }, { "input": "2 1 1 1\n2\n1 1 2\n2 1 2", "output": "1" }, { "input": "1 1 1 2\n5\n1000000000 1 10000\n19920401 1188 5566\n1000000000 1 10000\n1 1 10000\n5 100 200", "output": "1" }, { "input": "1 1 1000000000 2\n5\n1000000000 1 10000\n19920401 1188 5566\n1000000000 1 10000\n1 1 10000\n5 100 200", "output": "-1" } ]
1,635,379,544
2,147,483,647
PyPy 3
OK
TESTS
43
654
29,798,400
# Author Name: Ajay Meena # Codeforce : https://codeforces.com/profile/majay1638 import sys import math import bisect import heapq from bisect import bisect_right from sys import stdin, stdout # -------------- INPUT FUNCTIONS ------------------ def get_ints_in_variables(): return map( int, sys.stdin.readline().strip().split()) def get_int(): return int(sys.stdin.readline()) def get_ints_in_list(): return list( map(int, sys.stdin.readline().strip().split())) def get_list_of_list(n): return [list( map(int, sys.stdin.readline().strip().split())) for _ in range(n)] def get_string(): return sys.stdin.readline().strip() # -------- SOME CUSTOMIZED FUNCTIONS----------- def myceil(x, y): return (x + y - 1) // y # -------------- SOLUTION FUNCTION ------------------ def Solution(): # Write Your Code Here x0, y0, x1, y1 = get_ints_in_variables() n = get_int() g = {} for _ in range(n): r, a, b = get_ints_in_variables() for i in range(a, b+1): g[(r, i)] = -1 g[(x0, y0)] = 0 dx = [-1, -1, -1, 0, 0, 1, 1, 1] dy = [0, -1, 1, -1, 1, 0, -1, 1] queue = [(x0, y0)] while len(queue): node = queue.pop(0) for j in range(8): v = (node[0]+dx[j], node[1]+dy[j]) # print(v, "v") if not v in g: continue if v in g and g[v] != -1: continue g[v] = g[node]+1 queue.append(v) print(g[(x1, y1)]) def main(): # Take input Here and Call solution function Solution() # calling main Function if __name__ == '__main__': main()
Title: King's Path Time Limit: None seconds Memory Limit: None megabytes Problem Description: The black king is standing on a chess field consisting of 109 rows and 109 columns. We will consider the rows of the field numbered with integers from 1 to 109 from top to bottom. The columns are similarly numbered with integers from 1 to 109 from left to right. We will denote a cell of the field that is located in the *i*-th row and *j*-th column as (*i*,<=*j*). You know that some squares of the given chess field are allowed. All allowed cells of the chess field are given as *n* segments. Each segment is described by three integers *r**i*,<=*a**i*,<=*b**i* (*a**i*<=≤<=*b**i*), denoting that cells in columns from number *a**i* to number *b**i* inclusive in the *r**i*-th row are allowed. Your task is to find the minimum number of moves the king needs to get from square (*x*0,<=*y*0) to square (*x*1,<=*y*1), provided that he only moves along the allowed cells. In other words, the king can be located only on allowed cells on his way. Let us remind you that a chess king can move to any of the neighboring cells in one move. Two cells of a chess field are considered neighboring if they share at least one point. Input Specification: The first line contains four space-separated integers *x*0,<=*y*0,<=*x*1,<=*y*1 (1<=≤<=*x*0,<=*y*0,<=*x*1,<=*y*1<=≤<=109), denoting the initial and the final positions of the king. The second line contains a single integer *n* (1<=≤<=*n*<=≤<=105), denoting the number of segments of allowed cells. Next *n* lines contain the descriptions of these segments. The *i*-th line contains three space-separated integers *r**i*,<=*a**i*,<=*b**i* (1<=≤<=*r**i*,<=*a**i*,<=*b**i*<=≤<=109,<=*a**i*<=≤<=*b**i*), denoting that cells in columns from number *a**i* to number *b**i* inclusive in the *r**i*-th row are allowed. Note that the segments of the allowed cells can intersect and embed arbitrarily. It is guaranteed that the king's initial and final position are allowed cells. It is guaranteed that the king's initial and the final positions do not coincide. It is guaranteed that the total length of all given segments doesn't exceed 105. Output Specification: If there is no path between the initial and final position along allowed cells, print -1. Otherwise print a single integer — the minimum number of moves the king needs to get from the initial position to the final one. Demo Input: ['5 7 6 11\n3\n5 3 8\n6 7 11\n5 2 5\n', '3 4 3 10\n3\n3 1 4\n4 5 9\n3 10 10\n', '1 1 2 10\n2\n1 1 3\n2 6 10\n'] Demo Output: ['4\n', '6\n', '-1\n'] Note: none
```python # Author Name: Ajay Meena # Codeforce : https://codeforces.com/profile/majay1638 import sys import math import bisect import heapq from bisect import bisect_right from sys import stdin, stdout # -------------- INPUT FUNCTIONS ------------------ def get_ints_in_variables(): return map( int, sys.stdin.readline().strip().split()) def get_int(): return int(sys.stdin.readline()) def get_ints_in_list(): return list( map(int, sys.stdin.readline().strip().split())) def get_list_of_list(n): return [list( map(int, sys.stdin.readline().strip().split())) for _ in range(n)] def get_string(): return sys.stdin.readline().strip() # -------- SOME CUSTOMIZED FUNCTIONS----------- def myceil(x, y): return (x + y - 1) // y # -------------- SOLUTION FUNCTION ------------------ def Solution(): # Write Your Code Here x0, y0, x1, y1 = get_ints_in_variables() n = get_int() g = {} for _ in range(n): r, a, b = get_ints_in_variables() for i in range(a, b+1): g[(r, i)] = -1 g[(x0, y0)] = 0 dx = [-1, -1, -1, 0, 0, 1, 1, 1] dy = [0, -1, 1, -1, 1, 0, -1, 1] queue = [(x0, y0)] while len(queue): node = queue.pop(0) for j in range(8): v = (node[0]+dx[j], node[1]+dy[j]) # print(v, "v") if not v in g: continue if v in g and g[v] != -1: continue g[v] = g[node]+1 queue.append(v) print(g[(x1, y1)]) def main(): # Take input Here and Call solution function Solution() # calling main Function if __name__ == '__main__': main() ```
3
622
B
The Time
PROGRAMMING
900
[ "implementation" ]
null
null
You are given the current time in 24-hour format hh:mm. Find and print the time after *a* minutes. Note that you should find only the time after *a* minutes, see the examples to clarify the problem statement. You can read more about 24-hour format here [https://en.wikipedia.org/wiki/24-hour_clock](https://en.wikipedia.org/wiki/24-hour_clock).
The first line contains the current time in the format hh:mm (0<=≤<=*hh*<=&lt;<=24,<=0<=≤<=*mm*<=&lt;<=60). The hours and the minutes are given with two digits (the hours or the minutes less than 10 are given with the leading zeroes). The second line contains integer *a* (0<=≤<=*a*<=≤<=104) — the number of the minutes passed.
The only line should contain the time after *a* minutes in the format described in the input. Note that you should print exactly two digits for the hours and the minutes (add leading zeroes to the numbers if needed). See the examples to check the input/output format.
[ "23:59\n10\n", "20:20\n121\n", "10:10\n0\n" ]
[ "00:09\n", "22:21\n", "10:10\n" ]
none
0
[ { "input": "23:59\n10", "output": "00:09" }, { "input": "20:20\n121", "output": "22:21" }, { "input": "10:10\n0", "output": "10:10" }, { "input": "12:34\n10000", "output": "11:14" }, { "input": "00:00\n10000", "output": "22:40" }, { "input": "00:00\n1440", "output": "00:00" }, { "input": "23:59\n8640", "output": "23:59" }, { "input": "10:01\n0", "output": "10:01" }, { "input": "04:05\n0", "output": "04:05" }, { "input": "02:59\n1", "output": "03:00" }, { "input": "05:15\n10", "output": "05:25" }, { "input": "03:10\n20", "output": "03:30" }, { "input": "09:11\n0", "output": "09:11" }, { "input": "19:00\n0", "output": "19:00" }, { "input": "23:59\n1", "output": "00:00" }, { "input": "11:59\n1", "output": "12:00" }, { "input": "19:34\n566", "output": "05:00" }, { "input": "00:01\n59", "output": "01:00" }, { "input": "03:30\n0", "output": "03:30" }, { "input": "22:30\n30", "output": "23:00" }, { "input": "22:50\n70", "output": "00:00" }, { "input": "05:12\n0", "output": "05:12" }, { "input": "09:20\n40", "output": "10:00" }, { "input": "15:04\n36", "output": "15:40" }, { "input": "05:37\n23", "output": "06:00" }, { "input": "23:59\n59", "output": "00:58" }, { "input": "21:09\n9997", "output": "19:46" }, { "input": "11:00\n1", "output": "11:01" }, { "input": "20:01\n2699", "output": "17:00" }, { "input": "01:00\n59", "output": "01:59" }, { "input": "07:09\n6538", "output": "20:07" }, { "input": "00:00\n10", "output": "00:10" }, { "input": "02:09\n2074", "output": "12:43" }, { "input": "01:10\n1", "output": "01:11" }, { "input": "23:01\n59", "output": "00:00" }, { "input": "08:50\n20", "output": "09:10" }, { "input": "13:18\n5121", "output": "02:39" }, { "input": "18:31\n2677", "output": "15:08" }, { "input": "14:17\n108", "output": "16:05" }, { "input": "02:45\n5617", "output": "00:22" }, { "input": "00:00\n3600", "output": "12:00" }, { "input": "19:01\n59", "output": "20:00" }, { "input": "19:02\n59", "output": "20:01" }, { "input": "14:00\n2880", "output": "14:00" }, { "input": "01:10\n44", "output": "01:54" }, { "input": "02:01\n59", "output": "03:00" }, { "input": "07:02\n121", "output": "09:03" }, { "input": "10:00\n61", "output": "11:01" }, { "input": "23:59\n61", "output": "01:00" }, { "input": "00:00\n0", "output": "00:00" }, { "input": "23:59\n121", "output": "02:00" }, { "input": "00:00\n60", "output": "01:00" }, { "input": "15:52\n60", "output": "16:52" }, { "input": "00:39\n6525", "output": "13:24" }, { "input": "00:30\n30", "output": "01:00" }, { "input": "00:59\n1", "output": "01:00" }, { "input": "00:55\n4321", "output": "00:56" }, { "input": "10:05\n1", "output": "10:06" }, { "input": "23:00\n60", "output": "00:00" } ]
1,474,204,064
2,147,483,647
Python 3
OK
TESTS
59
62
102,400
st= input() l= (st.split(':')) x=eval(input()) sum=x+int(l[1]) h=sum//60 l[1]=sum%60 l[0]=int(l[0]) l[0]+=int(h) ans=':' if(len(str(l[1])) <2): ans+='0' ans+=str(l[1]) else: ans+=str(l[1]) if(len(str(l[0]%24)) >=2): ans=str(l[0]%24)+ans else: ans='0'+str(l[0]%24)+ans print(ans)
Title: The Time Time Limit: None seconds Memory Limit: None megabytes Problem Description: You are given the current time in 24-hour format hh:mm. Find and print the time after *a* minutes. Note that you should find only the time after *a* minutes, see the examples to clarify the problem statement. You can read more about 24-hour format here [https://en.wikipedia.org/wiki/24-hour_clock](https://en.wikipedia.org/wiki/24-hour_clock). Input Specification: The first line contains the current time in the format hh:mm (0<=≤<=*hh*<=&lt;<=24,<=0<=≤<=*mm*<=&lt;<=60). The hours and the minutes are given with two digits (the hours or the minutes less than 10 are given with the leading zeroes). The second line contains integer *a* (0<=≤<=*a*<=≤<=104) — the number of the minutes passed. Output Specification: The only line should contain the time after *a* minutes in the format described in the input. Note that you should print exactly two digits for the hours and the minutes (add leading zeroes to the numbers if needed). See the examples to check the input/output format. Demo Input: ['23:59\n10\n', '20:20\n121\n', '10:10\n0\n'] Demo Output: ['00:09\n', '22:21\n', '10:10\n'] Note: none
```python st= input() l= (st.split(':')) x=eval(input()) sum=x+int(l[1]) h=sum//60 l[1]=sum%60 l[0]=int(l[0]) l[0]+=int(h) ans=':' if(len(str(l[1])) <2): ans+='0' ans+=str(l[1]) else: ans+=str(l[1]) if(len(str(l[0]%24)) >=2): ans=str(l[0]%24)+ans else: ans='0'+str(l[0]%24)+ans print(ans) ```
3
711
A
Bus to Udayland
PROGRAMMING
800
[ "brute force", "implementation" ]
null
null
ZS the Coder and Chris the Baboon are travelling to Udayland! To get there, they have to get on the special IOI bus. The IOI bus has *n* rows of seats. There are 4 seats in each row, and the seats are separated into pairs by a walkway. When ZS and Chris came, some places in the bus was already occupied. ZS and Chris are good friends. They insist to get a pair of neighbouring empty seats. Two seats are considered neighbouring if they are in the same row and in the same pair. Given the configuration of the bus, can you help ZS and Chris determine where they should sit?
The first line of the input contains a single integer *n* (1<=≤<=*n*<=≤<=1000) — the number of rows of seats in the bus. Then, *n* lines follow. Each line contains exactly 5 characters, the first two of them denote the first pair of seats in the row, the third character denotes the walkway (it always equals '|') and the last two of them denote the second pair of seats in the row. Each character, except the walkway, equals to 'O' or to 'X'. 'O' denotes an empty seat, 'X' denotes an occupied seat. See the sample cases for more details.
If it is possible for Chris and ZS to sit at neighbouring empty seats, print "YES" (without quotes) in the first line. In the next *n* lines print the bus configuration, where the characters in the pair of seats for Chris and ZS is changed with characters '+'. Thus the configuration should differ from the input one by exactly two charaters (they should be equal to 'O' in the input and to '+' in the output). If there is no pair of seats for Chris and ZS, print "NO" (without quotes) in a single line. If there are multiple solutions, you may print any of them.
[ "6\nOO|OX\nXO|XX\nOX|OO\nXX|OX\nOO|OO\nOO|XX\n", "4\nXO|OX\nXO|XX\nOX|OX\nXX|OX\n", "5\nXX|XX\nXX|XX\nXO|OX\nXO|OO\nOX|XO\n" ]
[ "YES\n++|OX\nXO|XX\nOX|OO\nXX|OX\nOO|OO\nOO|XX\n", "NO\n", "YES\nXX|XX\nXX|XX\nXO|OX\nXO|++\nOX|XO\n" ]
Note that the following is an incorrect configuration for the first sample case because the seats must be in the same pair. O+|+X XO|XX OX|OO XX|OX OO|OO OO|XX
500
[ { "input": "6\nOO|OX\nXO|XX\nOX|OO\nXX|OX\nOO|OO\nOO|XX", "output": "YES\n++|OX\nXO|XX\nOX|OO\nXX|OX\nOO|OO\nOO|XX" }, { "input": "4\nXO|OX\nXO|XX\nOX|OX\nXX|OX", "output": "NO" }, { "input": "5\nXX|XX\nXX|XX\nXO|OX\nXO|OO\nOX|XO", "output": "YES\nXX|XX\nXX|XX\nXO|OX\nXO|++\nOX|XO" }, { "input": "1\nXO|OX", "output": "NO" }, { "input": "1\nOO|OO", "output": "YES\n++|OO" }, { "input": "4\nXO|XX\nXX|XO\nOX|XX\nXO|XO", "output": "NO" }, { "input": "9\nOX|XO\nOX|XO\nXO|OX\nOX|OX\nXO|OX\nXX|OO\nOX|OX\nOX|XO\nOX|OX", "output": "YES\nOX|XO\nOX|XO\nXO|OX\nOX|OX\nXO|OX\nXX|++\nOX|OX\nOX|XO\nOX|OX" }, { "input": "61\nOX|XX\nOX|XX\nOX|XX\nXO|XO\nXX|XO\nXX|XX\nXX|XX\nOX|XX\nXO|XO\nOX|XO\nXO|OX\nXX|XX\nXX|XX\nOX|OX\nXX|OX\nOX|XO\nOX|XO\nXO|OX\nXO|XX\nOX|XX\nOX|XX\nXO|OX\nXO|XX\nXO|XX\nOX|XX\nXX|XX\nXX|XO\nXO|XX\nXX|XX\nXO|OX\nXX|XO\nXO|XX\nXO|XO\nXO|OX\nXX|OX\nXO|OX\nOX|XX\nXX|OX\nXX|XX\nOX|XO\nOX|XX\nXO|OX\nOX|XX\nOX|XX\nXO|XO\nXO|XX\nOX|XX\nXO|XO\nOX|XX\nXX|XX\nOX|XO\nXO|XO\nXO|XO\nOX|OX\nXX|OX\nXX|OX\nOX|XO\nOX|XX\nOX|OX\nXO|XX\nOX|XX", "output": "NO" }, { "input": "1\nOO|XX", "output": "YES\n++|XX" }, { "input": "10\nOO|XX\nXO|OX\nXO|OX\nXO|OX\nXO|OX\nXO|OX\nXO|OX\nXO|OX\nXO|OX\nXX|XX", "output": "YES\n++|XX\nXO|OX\nXO|OX\nXO|OX\nXO|OX\nXO|OX\nXO|OX\nXO|OX\nXO|OX\nXX|XX" }, { "input": "10\nXX|XX\nXO|OX\nXO|OX\nXO|OX\nXO|OX\nXO|OX\nXO|OX\nXO|OX\nXO|OX\nXX|OO", "output": "YES\nXX|XX\nXO|OX\nXO|OX\nXO|OX\nXO|OX\nXO|OX\nXO|OX\nXO|OX\nXO|OX\nXX|++" }, { "input": "5\nXX|XX\nXX|XX\nXO|OX\nOO|OX\nOX|XO", "output": "YES\nXX|XX\nXX|XX\nXO|OX\n++|OX\nOX|XO" }, { "input": "6\nOO|XX\nXO|XX\nOX|OO\nXX|OX\nOO|XX\nOX|XX", "output": "YES\n++|XX\nXO|XX\nOX|OO\nXX|OX\nOO|XX\nOX|XX" } ]
1,614,666,683
2,147,483,647
Python 3
OK
TESTS
71
62
307,200
import math def solve(): times = int(input()) check = False rows = [] for i in range(0,times): rows.append(input().split("|")) for i in rows: if i[0]=="OO": check = True i[0] ="++" break elif i[1] =="OO": check = True i[1] ="++" break if check: print("YES") for i in rows: print("|".join(i)) else: print("NO") # for _ in range(int(input())): solve()
Title: Bus to Udayland Time Limit: None seconds Memory Limit: None megabytes Problem Description: ZS the Coder and Chris the Baboon are travelling to Udayland! To get there, they have to get on the special IOI bus. The IOI bus has *n* rows of seats. There are 4 seats in each row, and the seats are separated into pairs by a walkway. When ZS and Chris came, some places in the bus was already occupied. ZS and Chris are good friends. They insist to get a pair of neighbouring empty seats. Two seats are considered neighbouring if they are in the same row and in the same pair. Given the configuration of the bus, can you help ZS and Chris determine where they should sit? Input Specification: The first line of the input contains a single integer *n* (1<=≤<=*n*<=≤<=1000) — the number of rows of seats in the bus. Then, *n* lines follow. Each line contains exactly 5 characters, the first two of them denote the first pair of seats in the row, the third character denotes the walkway (it always equals '|') and the last two of them denote the second pair of seats in the row. Each character, except the walkway, equals to 'O' or to 'X'. 'O' denotes an empty seat, 'X' denotes an occupied seat. See the sample cases for more details. Output Specification: If it is possible for Chris and ZS to sit at neighbouring empty seats, print "YES" (without quotes) in the first line. In the next *n* lines print the bus configuration, where the characters in the pair of seats for Chris and ZS is changed with characters '+'. Thus the configuration should differ from the input one by exactly two charaters (they should be equal to 'O' in the input and to '+' in the output). If there is no pair of seats for Chris and ZS, print "NO" (without quotes) in a single line. If there are multiple solutions, you may print any of them. Demo Input: ['6\nOO|OX\nXO|XX\nOX|OO\nXX|OX\nOO|OO\nOO|XX\n', '4\nXO|OX\nXO|XX\nOX|OX\nXX|OX\n', '5\nXX|XX\nXX|XX\nXO|OX\nXO|OO\nOX|XO\n'] Demo Output: ['YES\n++|OX\nXO|XX\nOX|OO\nXX|OX\nOO|OO\nOO|XX\n', 'NO\n', 'YES\nXX|XX\nXX|XX\nXO|OX\nXO|++\nOX|XO\n'] Note: Note that the following is an incorrect configuration for the first sample case because the seats must be in the same pair. O+|+X XO|XX OX|OO XX|OX OO|OO OO|XX
```python import math def solve(): times = int(input()) check = False rows = [] for i in range(0,times): rows.append(input().split("|")) for i in rows: if i[0]=="OO": check = True i[0] ="++" break elif i[1] =="OO": check = True i[1] ="++" break if check: print("YES") for i in rows: print("|".join(i)) else: print("NO") # for _ in range(int(input())): solve() ```
3
313
B
Ilya and Queries
PROGRAMMING
1,100
[ "dp", "implementation" ]
null
null
Ilya the Lion wants to help all his friends with passing exams. They need to solve the following problem to pass the IT exam. You've got string *s*<==<=*s*1*s*2... *s**n* (*n* is the length of the string), consisting only of characters "." and "#" and *m* queries. Each query is described by a pair of integers *l**i*,<=*r**i* (1<=≤<=*l**i*<=&lt;<=*r**i*<=≤<=*n*). The answer to the query *l**i*,<=*r**i* is the number of such integers *i* (*l**i*<=≤<=*i*<=&lt;<=*r**i*), that *s**i*<==<=*s**i*<=+<=1. Ilya the Lion wants to help his friends but is there anyone to help him? Help Ilya, solve the problem.
The first line contains string *s* of length *n* (2<=≤<=*n*<=≤<=105). It is guaranteed that the given string only consists of characters "." and "#". The next line contains integer *m* (1<=≤<=*m*<=≤<=105) — the number of queries. Each of the next *m* lines contains the description of the corresponding query. The *i*-th line contains integers *l**i*,<=*r**i* (1<=≤<=*l**i*<=&lt;<=*r**i*<=≤<=*n*).
Print *m* integers — the answers to the queries in the order in which they are given in the input.
[ "......\n4\n3 4\n2 3\n1 6\n2 6\n", "#..###\n5\n1 3\n5 6\n1 5\n3 6\n3 4\n" ]
[ "1\n1\n5\n4\n", "1\n1\n2\n2\n0\n" ]
none
1,000
[ { "input": "......\n4\n3 4\n2 3\n1 6\n2 6", "output": "1\n1\n5\n4" }, { "input": "#..###\n5\n1 3\n5 6\n1 5\n3 6\n3 4", "output": "1\n1\n2\n2\n0" }, { "input": ".#...#..\n6\n1 5\n2 3\n6 7\n2 4\n2 5\n1 3", "output": "2\n0\n0\n1\n2\n0" }, { "input": "#.#.#..\n5\n3 4\n4 5\n5 7\n5 7\n1 3", "output": "0\n0\n1\n1\n0" }, { "input": "#.##.##.\n7\n1 8\n2 6\n2 6\n6 8\n3 5\n2 4\n2 5", "output": "2\n1\n1\n1\n1\n1\n1" }, { "input": "#..#\n1\n1 4", "output": "1" }, { "input": "#..##...#.\n7\n5 9\n6 10\n1 7\n5 8\n3 5\n2 10\n3 4", "output": "2\n2\n3\n2\n1\n4\n0" }, { "input": "#.#.#\n7\n1 2\n3 4\n3 5\n2 3\n3 5\n1 5\n1 3", "output": "0\n0\n0\n0\n0\n0\n0" }, { "input": "###..#...#\n2\n2 4\n1 2", "output": "1\n1" }, { "input": "..\n1\n1 2", "output": "1" }, { "input": "##\n1\n1 2", "output": "1" }, { "input": ".#\n1\n1 2", "output": "0" }, { "input": "#.\n1\n1 2", "output": "0" }, { "input": "...\n2\n1 2\n1 2", "output": "1\n1" } ]
1,692,258,486
2,147,483,647
Python 3
OK
TESTS
37
1,496
5,324,800
st = input() if st[0] == st[1]: arr = [1] else: arr = [0] for i in range(1 , len(st) - 1): if st[i] == st[i + 1]: arr.append(1 + arr[i - 1]) else: arr.append(0 + arr[i - 1]) n = int(input()) for i in range(n): a , b = map(int , input().split()) if a == 1: print(arr[b - 2]) else: print(arr[b - 2] - arr[a - 2])
Title: Ilya and Queries Time Limit: None seconds Memory Limit: None megabytes Problem Description: Ilya the Lion wants to help all his friends with passing exams. They need to solve the following problem to pass the IT exam. You've got string *s*<==<=*s*1*s*2... *s**n* (*n* is the length of the string), consisting only of characters "." and "#" and *m* queries. Each query is described by a pair of integers *l**i*,<=*r**i* (1<=≤<=*l**i*<=&lt;<=*r**i*<=≤<=*n*). The answer to the query *l**i*,<=*r**i* is the number of such integers *i* (*l**i*<=≤<=*i*<=&lt;<=*r**i*), that *s**i*<==<=*s**i*<=+<=1. Ilya the Lion wants to help his friends but is there anyone to help him? Help Ilya, solve the problem. Input Specification: The first line contains string *s* of length *n* (2<=≤<=*n*<=≤<=105). It is guaranteed that the given string only consists of characters "." and "#". The next line contains integer *m* (1<=≤<=*m*<=≤<=105) — the number of queries. Each of the next *m* lines contains the description of the corresponding query. The *i*-th line contains integers *l**i*,<=*r**i* (1<=≤<=*l**i*<=&lt;<=*r**i*<=≤<=*n*). Output Specification: Print *m* integers — the answers to the queries in the order in which they are given in the input. Demo Input: ['......\n4\n3 4\n2 3\n1 6\n2 6\n', '#..###\n5\n1 3\n5 6\n1 5\n3 6\n3 4\n'] Demo Output: ['1\n1\n5\n4\n', '1\n1\n2\n2\n0\n'] Note: none
```python st = input() if st[0] == st[1]: arr = [1] else: arr = [0] for i in range(1 , len(st) - 1): if st[i] == st[i + 1]: arr.append(1 + arr[i - 1]) else: arr.append(0 + arr[i - 1]) n = int(input()) for i in range(n): a , b = map(int , input().split()) if a == 1: print(arr[b - 2]) else: print(arr[b - 2] - arr[a - 2]) ```
3
246
B
Increase and Decrease
PROGRAMMING
1,300
[ "greedy", "math" ]
null
null
Polycarpus has an array, consisting of *n* integers *a*1,<=*a*2,<=...,<=*a**n*. Polycarpus likes it when numbers in an array match. That's why he wants the array to have as many equal numbers as possible. For that Polycarpus performs the following operation multiple times: - he chooses two elements of the array *a**i*, *a**j* (*i*<=≠<=*j*); - he simultaneously increases number *a**i* by 1 and decreases number *a**j* by 1, that is, executes *a**i*<==<=*a**i*<=+<=1 and *a**j*<==<=*a**j*<=-<=1. The given operation changes exactly two distinct array elements. Polycarpus can apply the described operation an infinite number of times. Now he wants to know what maximum number of equal array elements he can get if he performs an arbitrary number of such operation. Help Polycarpus.
The first line contains integer *n* (1<=≤<=*n*<=≤<=105) — the array size. The second line contains space-separated integers *a*1,<=*a*2,<=...,<=*a**n* (|*a**i*|<=≤<=104) — the original array.
Print a single integer — the maximum number of equal array elements he can get if he performs an arbitrary number of the given operation.
[ "2\n2 1\n", "3\n1 4 1\n" ]
[ "1\n", "3\n" ]
none
1,000
[ { "input": "2\n2 1", "output": "1" }, { "input": "3\n1 4 1", "output": "3" }, { "input": "4\n2 -7 -2 -6", "output": "3" }, { "input": "4\n2 0 -2 -1", "output": "3" }, { "input": "6\n-1 1 0 0 -1 -1", "output": "5" }, { "input": "5\n0 0 0 0 0", "output": "5" }, { "input": "100\n968 793 -628 -416 942 -308 977 168 728 -879 952 781 -425 -475 -480 738 -740 142 -319 -116 -701 -183 41 324 -918 -391 -176 781 763 888 475 -617 134 -802 -133 -211 855 -869 -236 503 550 387 137 -221 -957 -800 -56 -673 440 -791 -217 -959 -892 886 -593 427 890 223 -425 -342 -262 693 -137 924 860 156 -110 444 -12 703 421 -638 725 -551 597 -206 -80 393 -441 -759 617 424 -506 209 579 -685 -861 507 312 597 -81 -491 424 222 -892 629 512 743 -452 -504", "output": "99" } ]
1,683,258,364
2,147,483,647
PyPy 3-64
OK
TESTS
30
124
5,427,200
n = int(input()) array = [int(a) for a in input().split()] sum = 0 for i in range(len(array)): sum += array[i] if sum % n == 0: print(n) else: print(n-1)
Title: Increase and Decrease Time Limit: None seconds Memory Limit: None megabytes Problem Description: Polycarpus has an array, consisting of *n* integers *a*1,<=*a*2,<=...,<=*a**n*. Polycarpus likes it when numbers in an array match. That's why he wants the array to have as many equal numbers as possible. For that Polycarpus performs the following operation multiple times: - he chooses two elements of the array *a**i*, *a**j* (*i*<=≠<=*j*); - he simultaneously increases number *a**i* by 1 and decreases number *a**j* by 1, that is, executes *a**i*<==<=*a**i*<=+<=1 and *a**j*<==<=*a**j*<=-<=1. The given operation changes exactly two distinct array elements. Polycarpus can apply the described operation an infinite number of times. Now he wants to know what maximum number of equal array elements he can get if he performs an arbitrary number of such operation. Help Polycarpus. Input Specification: The first line contains integer *n* (1<=≤<=*n*<=≤<=105) — the array size. The second line contains space-separated integers *a*1,<=*a*2,<=...,<=*a**n* (|*a**i*|<=≤<=104) — the original array. Output Specification: Print a single integer — the maximum number of equal array elements he can get if he performs an arbitrary number of the given operation. Demo Input: ['2\n2 1\n', '3\n1 4 1\n'] Demo Output: ['1\n', '3\n'] Note: none
```python n = int(input()) array = [int(a) for a in input().split()] sum = 0 for i in range(len(array)): sum += array[i] if sum % n == 0: print(n) else: print(n-1) ```
3
0
none
none
none
0
[ "none" ]
null
null
Valentin participates in a show called "Shockers". The rules are quite easy: jury selects one letter which Valentin doesn't know. He should make a small speech, but every time he pronounces a word that contains the selected letter, he receives an electric shock. He can make guesses which letter is selected, but for each incorrect guess he receives an electric shock too. The show ends when Valentin guesses the selected letter correctly. Valentin can't keep in mind everything, so he could guess the selected letter much later than it can be uniquely determined and get excessive electric shocks. Excessive electric shocks are those which Valentin got after the moment the selected letter can be uniquely determined. You should find out the number of excessive electric shocks.
The first line contains a single integer *n* (1<=≤<=*n*<=≤<=105) — the number of actions Valentin did. The next *n* lines contain descriptions of his actions, each line contains description of one action. Each action can be of one of three types: 1. Valentin pronounced some word and didn't get an electric shock. This action is described by the string ". w" (without quotes), in which "." is a dot (ASCII-code 46), and *w* is the word that Valentin said. 1. Valentin pronounced some word and got an electric shock. This action is described by the string "! w" (without quotes), in which "!" is an exclamation mark (ASCII-code 33), and *w* is the word that Valentin said. 1. Valentin made a guess about the selected letter. This action is described by the string "? s" (without quotes), in which "?" is a question mark (ASCII-code 63), and *s* is the guess — a lowercase English letter. All words consist only of lowercase English letters. The total length of all words does not exceed 105. It is guaranteed that last action is a guess about the selected letter. Also, it is guaranteed that Valentin didn't make correct guesses about the selected letter before the last action. Moreover, it's guaranteed that if Valentin got an electric shock after pronouncing some word, then it contains the selected letter; and also if Valentin didn't get an electric shock after pronouncing some word, then it does not contain the selected letter.
Output a single integer — the number of electric shocks that Valentin could have avoided if he had told the selected letter just after it became uniquely determined.
[ "5\n! abc\n. ad\n. b\n! cd\n? c\n", "8\n! hello\n! codeforces\n? c\n. o\n? d\n? h\n. l\n? e\n", "7\n! ababahalamaha\n? a\n? b\n? a\n? b\n? a\n? h\n" ]
[ "1\n", "2\n", "0\n" ]
In the first test case after the first action it becomes clear that the selected letter is one of the following: *a*, *b*, *c*. After the second action we can note that the selected letter is not *a*. Valentin tells word "b" and doesn't get a shock. After that it is clear that the selected letter is *c*, but Valentin pronounces the word *cd* and gets an excessive electric shock. In the second test case after the first two electric shocks we understand that the selected letter is *e* or *o*. Valentin tries some words consisting of these letters and after the second word it's clear that the selected letter is *e*, but Valentin makes 3 more actions before he makes a correct hypothesis. In the third example the selected letter can be uniquely determined only when Valentin guesses it, so he didn't get excessive electric shocks.
0
[ { "input": "5\n! abc\n. ad\n. b\n! cd\n? c", "output": "1" }, { "input": "8\n! hello\n! codeforces\n? c\n. o\n? d\n? h\n. l\n? e", "output": "2" }, { "input": "7\n! ababahalamaha\n? a\n? b\n? a\n? b\n? a\n? h", "output": "0" }, { "input": "4\n! abcd\n! cdef\n? d\n? c", "output": "0" }, { "input": "1\n? q", "output": "0" }, { "input": "15\n. r\n? e\n. s\n. rw\n? y\n. fj\n. zftyd\n? r\n! wq\n? w\n? p\n. ours\n. dto\n. lbyfru\n? q", "output": "2" }, { "input": "3\n. abcdefghijklmnopqrstuvwxy\n? a\n? z", "output": "1" }, { "input": "3\n. abcdefghijklmnopqrstuvwxy\n! z\n? z", "output": "1" } ]
1,514,053,754
2,147,483,647
Python 3
OK
TESTS
38
218
5,939,200
occur = [1]*26 n=int(input()) t=1 for a in range(1,n): act, word = input().split() t=a if act=='!': temp=[0]*26 for c in word: temp[ord(c)-ord('a')]=1 for i in range(26): occur[i]=occur[i]&temp[i] if(sum(occur)==1): break else: for c in word: occur[ord(c)-ord('a')]=0 if(sum(occur)==1): break # print (t) ans = 0 for a in range(t+1,n): act, word = input().split() if act!='.': ans+=1 act, word = input().split() print(ans)
Title: none Time Limit: None seconds Memory Limit: None megabytes Problem Description: Valentin participates in a show called "Shockers". The rules are quite easy: jury selects one letter which Valentin doesn't know. He should make a small speech, but every time he pronounces a word that contains the selected letter, he receives an electric shock. He can make guesses which letter is selected, but for each incorrect guess he receives an electric shock too. The show ends when Valentin guesses the selected letter correctly. Valentin can't keep in mind everything, so he could guess the selected letter much later than it can be uniquely determined and get excessive electric shocks. Excessive electric shocks are those which Valentin got after the moment the selected letter can be uniquely determined. You should find out the number of excessive electric shocks. Input Specification: The first line contains a single integer *n* (1<=≤<=*n*<=≤<=105) — the number of actions Valentin did. The next *n* lines contain descriptions of his actions, each line contains description of one action. Each action can be of one of three types: 1. Valentin pronounced some word and didn't get an electric shock. This action is described by the string ". w" (without quotes), in which "." is a dot (ASCII-code 46), and *w* is the word that Valentin said. 1. Valentin pronounced some word and got an electric shock. This action is described by the string "! w" (without quotes), in which "!" is an exclamation mark (ASCII-code 33), and *w* is the word that Valentin said. 1. Valentin made a guess about the selected letter. This action is described by the string "? s" (without quotes), in which "?" is a question mark (ASCII-code 63), and *s* is the guess — a lowercase English letter. All words consist only of lowercase English letters. The total length of all words does not exceed 105. It is guaranteed that last action is a guess about the selected letter. Also, it is guaranteed that Valentin didn't make correct guesses about the selected letter before the last action. Moreover, it's guaranteed that if Valentin got an electric shock after pronouncing some word, then it contains the selected letter; and also if Valentin didn't get an electric shock after pronouncing some word, then it does not contain the selected letter. Output Specification: Output a single integer — the number of electric shocks that Valentin could have avoided if he had told the selected letter just after it became uniquely determined. Demo Input: ['5\n! abc\n. ad\n. b\n! cd\n? c\n', '8\n! hello\n! codeforces\n? c\n. o\n? d\n? h\n. l\n? e\n', '7\n! ababahalamaha\n? a\n? b\n? a\n? b\n? a\n? h\n'] Demo Output: ['1\n', '2\n', '0\n'] Note: In the first test case after the first action it becomes clear that the selected letter is one of the following: *a*, *b*, *c*. After the second action we can note that the selected letter is not *a*. Valentin tells word "b" and doesn't get a shock. After that it is clear that the selected letter is *c*, but Valentin pronounces the word *cd* and gets an excessive electric shock. In the second test case after the first two electric shocks we understand that the selected letter is *e* or *o*. Valentin tries some words consisting of these letters and after the second word it's clear that the selected letter is *e*, but Valentin makes 3 more actions before he makes a correct hypothesis. In the third example the selected letter can be uniquely determined only when Valentin guesses it, so he didn't get excessive electric shocks.
```python occur = [1]*26 n=int(input()) t=1 for a in range(1,n): act, word = input().split() t=a if act=='!': temp=[0]*26 for c in word: temp[ord(c)-ord('a')]=1 for i in range(26): occur[i]=occur[i]&temp[i] if(sum(occur)==1): break else: for c in word: occur[ord(c)-ord('a')]=0 if(sum(occur)==1): break # print (t) ans = 0 for a in range(t+1,n): act, word = input().split() if act!='.': ans+=1 act, word = input().split() print(ans) ```
3
71
A
Way Too Long Words
PROGRAMMING
800
[ "strings" ]
A. Way Too Long Words
1
256
Sometimes some words like "localization" or "internationalization" are so long that writing them many times in one text is quite tiresome. Let's consider a word too long, if its length is strictly more than 10 characters. All too long words should be replaced with a special abbreviation. This abbreviation is made like this: we write down the first and the last letter of a word and between them we write the number of letters between the first and the last letters. That number is in decimal system and doesn't contain any leading zeroes. Thus, "localization" will be spelt as "l10n", and "internationalization» will be spelt as "i18n". You are suggested to automatize the process of changing the words with abbreviations. At that all too long words should be replaced by the abbreviation and the words that are not too long should not undergo any changes.
The first line contains an integer *n* (1<=≤<=*n*<=≤<=100). Each of the following *n* lines contains one word. All the words consist of lowercase Latin letters and possess the lengths of from 1 to 100 characters.
Print *n* lines. The *i*-th line should contain the result of replacing of the *i*-th word from the input data.
[ "4\nword\nlocalization\ninternationalization\npneumonoultramicroscopicsilicovolcanoconiosis\n" ]
[ "word\nl10n\ni18n\np43s\n" ]
none
500
[ { "input": "4\nword\nlocalization\ninternationalization\npneumonoultramicroscopicsilicovolcanoconiosis", "output": "word\nl10n\ni18n\np43s" }, { "input": "5\nabcdefgh\nabcdefghi\nabcdefghij\nabcdefghijk\nabcdefghijklm", "output": "abcdefgh\nabcdefghi\nabcdefghij\na9k\na11m" }, { "input": "3\nnjfngnrurunrgunrunvurn\njfvnjfdnvjdbfvsbdubruvbubvkdb\nksdnvidnviudbvibd", "output": "n20n\nj27b\nk15d" }, { "input": "1\ntcyctkktcctrcyvbyiuhihhhgyvyvyvyvjvytchjckt", "output": "t41t" }, { "input": "24\nyou\nare\nregistered\nfor\npractice\nyou\ncan\nsolve\nproblems\nunofficially\nresults\ncan\nbe\nfound\nin\nthe\ncontest\nstatus\nand\nin\nthe\nbottom\nof\nstandings", "output": "you\nare\nregistered\nfor\npractice\nyou\ncan\nsolve\nproblems\nu10y\nresults\ncan\nbe\nfound\nin\nthe\ncontest\nstatus\nand\nin\nthe\nbottom\nof\nstandings" }, { "input": "1\na", "output": "a" }, { "input": "26\na\nb\nc\nd\ne\nf\ng\nh\ni\nj\nk\nl\nm\nn\no\np\nq\nr\ns\nt\nu\nv\nw\nx\ny\nz", "output": "a\nb\nc\nd\ne\nf\ng\nh\ni\nj\nk\nl\nm\nn\no\np\nq\nr\ns\nt\nu\nv\nw\nx\ny\nz" }, { "input": "1\nabcdefghijabcdefghijabcdefghijabcdefghijabcdefghijabcdefghijabcdefghijabcdefghijabcdefghijabcdefghij", "output": "a98j" }, { "input": "10\ngyartjdxxlcl\nfzsck\nuidwu\nxbymclornemdmtj\nilppyoapitawgje\ncibzc\ndrgbeu\nhezplmsdekhhbo\nfeuzlrimbqbytdu\nkgdco", "output": "g10l\nfzsck\nuidwu\nx13j\ni13e\ncibzc\ndrgbeu\nh12o\nf13u\nkgdco" }, { "input": "20\nlkpmx\nkovxmxorlgwaomlswjxlpnbvltfv\nhykasjxqyjrmybejnmeumzha\ntuevlumpqbbhbww\nqgqsphvrmupxxc\ntrissbaf\nqfgrlinkzvzqdryckaizutd\nzzqtoaxkvwoscyx\noswytrlnhpjvvnwookx\nlpuzqgec\ngyzqfwxggtvpjhzmzmdw\nrlxjgmvdftvrmvbdwudra\nvsntnjpepnvdaxiporggmglhagv\nxlvcqkqgcrbgtgglj\nlyxwxbiszyhlsrgzeedzprbmcpduvq\nyrmqqvrkqskqukzqrwukpsifgtdc\nxpuohcsjhhuhvr\nvvlfrlxpvqejngwrbfbpmqeirxlw\nsvmasocxdvadmaxtrpakysmeaympy\nyuflqboqfdt", "output": "lkpmx\nk26v\nh22a\nt13w\nq12c\ntrissbaf\nq21d\nz13x\no17x\nlpuzqgec\ng18w\nr19a\nv25v\nx15j\nl28q\ny26c\nx12r\nv26w\ns27y\ny9t" }, { "input": "100\nm\nz\ns\nv\nd\nr\nv\ny\ny\ne\np\nt\nc\na\nn\nm\np\ng\ni\nj\nc\na\nb\nq\ne\nn\nv\no\nk\nx\nf\ni\nl\na\nq\nr\nu\nb\ns\nl\nc\nl\ne\nv\nj\nm\nx\nb\na\nq\nb\na\nf\nj\nv\nm\nq\nc\nt\nt\nn\nx\no\ny\nr\nu\nh\nm\nj\np\nj\nq\nz\ns\nj\no\ng\nc\nm\nn\no\nm\nr\no\ns\nt\nh\nr\np\nk\nb\nz\ng\no\nc\nc\nz\nz\ng\nr", "output": "m\nz\ns\nv\nd\nr\nv\ny\ny\ne\np\nt\nc\na\nn\nm\np\ng\ni\nj\nc\na\nb\nq\ne\nn\nv\no\nk\nx\nf\ni\nl\na\nq\nr\nu\nb\ns\nl\nc\nl\ne\nv\nj\nm\nx\nb\na\nq\nb\na\nf\nj\nv\nm\nq\nc\nt\nt\nn\nx\no\ny\nr\nu\nh\nm\nj\np\nj\nq\nz\ns\nj\no\ng\nc\nm\nn\no\nm\nr\no\ns\nt\nh\nr\np\nk\nb\nz\ng\no\nc\nc\nz\nz\ng\nr" } ]
1,696,960,632
2,147,483,647
Python 3
OK
TESTS
20
46
0
n=int(input()) st=[i for i in range(0,n)] for i in range(n): st[i]=input() if len(st[i])>10: st[i]=st[i][0]+str(len(st[i])-2)+st[i][-1] for i in range(n): print(st[i])
Title: Way Too Long Words Time Limit: 1 seconds Memory Limit: 256 megabytes Problem Description: Sometimes some words like "localization" or "internationalization" are so long that writing them many times in one text is quite tiresome. Let's consider a word too long, if its length is strictly more than 10 characters. All too long words should be replaced with a special abbreviation. This abbreviation is made like this: we write down the first and the last letter of a word and between them we write the number of letters between the first and the last letters. That number is in decimal system and doesn't contain any leading zeroes. Thus, "localization" will be spelt as "l10n", and "internationalization» will be spelt as "i18n". You are suggested to automatize the process of changing the words with abbreviations. At that all too long words should be replaced by the abbreviation and the words that are not too long should not undergo any changes. Input Specification: The first line contains an integer *n* (1<=≤<=*n*<=≤<=100). Each of the following *n* lines contains one word. All the words consist of lowercase Latin letters and possess the lengths of from 1 to 100 characters. Output Specification: Print *n* lines. The *i*-th line should contain the result of replacing of the *i*-th word from the input data. Demo Input: ['4\nword\nlocalization\ninternationalization\npneumonoultramicroscopicsilicovolcanoconiosis\n'] Demo Output: ['word\nl10n\ni18n\np43s\n'] Note: none
```python n=int(input()) st=[i for i in range(0,n)] for i in range(n): st[i]=input() if len(st[i])>10: st[i]=st[i][0]+str(len(st[i])-2)+st[i][-1] for i in range(n): print(st[i]) ```
3.977
4
A
Watermelon
PROGRAMMING
800
[ "brute force", "math" ]
A. Watermelon
1
64
One hot summer day Pete and his friend Billy decided to buy a watermelon. They chose the biggest and the ripest one, in their opinion. After that the watermelon was weighed, and the scales showed *w* kilos. They rushed home, dying of thirst, and decided to divide the berry, however they faced a hard problem. Pete and Billy are great fans of even numbers, that's why they want to divide the watermelon in such a way that each of the two parts weighs even number of kilos, at the same time it is not obligatory that the parts are equal. The boys are extremely tired and want to start their meal as soon as possible, that's why you should help them and find out, if they can divide the watermelon in the way they want. For sure, each of them should get a part of positive weight.
The first (and the only) input line contains integer number *w* (1<=≤<=*w*<=≤<=100) — the weight of the watermelon bought by the boys.
Print YES, if the boys can divide the watermelon into two parts, each of them weighing even number of kilos; and NO in the opposite case.
[ "8\n" ]
[ "YES\n" ]
For example, the boys can divide the watermelon into two parts of 2 and 6 kilos respectively (another variant — two parts of 4 and 4 kilos).
0
[ { "input": "8", "output": "YES" }, { "input": "5", "output": "NO" }, { "input": "4", "output": "YES" }, { "input": "3", "output": "NO" }, { "input": "2", "output": "NO" }, { "input": "1", "output": "NO" }, { "input": "7", "output": "NO" }, { "input": "6", "output": "YES" }, { "input": "10", "output": "YES" }, { "input": "9", "output": "NO" }, { "input": "53", "output": "NO" }, { "input": "77", "output": "NO" }, { "input": "32", "output": "YES" }, { "input": "44", "output": "YES" }, { "input": "98", "output": "YES" }, { "input": "99", "output": "NO" }, { "input": "90", "output": "YES" }, { "input": "67", "output": "NO" }, { "input": "100", "output": "YES" }, { "input": "88", "output": "YES" } ]
1,689,625,478
2,147,483,647
PyPy 3
OK
TESTS
20
186
0
n = int(input()) print("YES" if n%2==0 and n!=2 else "NO")
Title: Watermelon Time Limit: 1 seconds Memory Limit: 64 megabytes Problem Description: One hot summer day Pete and his friend Billy decided to buy a watermelon. They chose the biggest and the ripest one, in their opinion. After that the watermelon was weighed, and the scales showed *w* kilos. They rushed home, dying of thirst, and decided to divide the berry, however they faced a hard problem. Pete and Billy are great fans of even numbers, that's why they want to divide the watermelon in such a way that each of the two parts weighs even number of kilos, at the same time it is not obligatory that the parts are equal. The boys are extremely tired and want to start their meal as soon as possible, that's why you should help them and find out, if they can divide the watermelon in the way they want. For sure, each of them should get a part of positive weight. Input Specification: The first (and the only) input line contains integer number *w* (1<=≤<=*w*<=≤<=100) — the weight of the watermelon bought by the boys. Output Specification: Print YES, if the boys can divide the watermelon into two parts, each of them weighing even number of kilos; and NO in the opposite case. Demo Input: ['8\n'] Demo Output: ['YES\n'] Note: For example, the boys can divide the watermelon into two parts of 2 and 6 kilos respectively (another variant — two parts of 4 and 4 kilos).
```python n = int(input()) print("YES" if n%2==0 and n!=2 else "NO") ```
3.907
918
A
Eleven
PROGRAMMING
800
[ "brute force", "implementation" ]
null
null
Eleven wants to choose a new name for herself. As a bunch of geeks, her friends suggested an algorithm to choose a name for her. Eleven wants her name to have exactly *n* characters. Her friend suggested that her name should only consist of uppercase and lowercase letters 'O'. More precisely, they suggested that the *i*-th letter of her name should be 'O' (uppercase) if *i* is a member of Fibonacci sequence, and 'o' (lowercase) otherwise. The letters in the name are numbered from 1 to *n*. Fibonacci sequence is the sequence *f* where - *f*1<==<=1, - *f*2<==<=1, - *f**n*<==<=*f**n*<=-<=2<=+<=*f**n*<=-<=1 (*n*<=&gt;<=2). As her friends are too young to know what Fibonacci sequence is, they asked you to help Eleven determine her new name.
The first and only line of input contains an integer *n* (1<=≤<=*n*<=≤<=1000).
Print Eleven's new name on the first and only line of output.
[ "8\n", "15\n" ]
[ "OOOoOooO\n", "OOOoOooOooooOoo\n" ]
none
500
[ { "input": "8", "output": "OOOoOooO" }, { "input": "15", "output": "OOOoOooOooooOoo" }, { "input": "85", "output": "OOOoOooOooooOoooooooOooooooooooooOooooooooooooooooooooOoooooooooooooooooooooooooooooo" }, { "input": "381", "output": "OOOoOooOooooOoooooooOooooooooooooOooooooooooooooooooooOoooooooooooooooooooooooooooooooooOooooooooooooooooooooooooooooooooooooooooooooooooooooooOooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooOoooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooOoooo" }, { "input": "805", "output": "OOOoOooOooooOoooooooOooooooooooooOooooooooooooooooooooOoooooooooooooooooooooooooooooooooOooooooooooooooooooooooooooooooooooooooooooooooooooooooOooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooOoooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooOoooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo..." }, { "input": "1000", "output": "OOOoOooOooooOoooooooOooooooooooooOooooooooooooooooooooOoooooooooooooooooooooooooooooooooOooooooooooooooooooooooooooooooooooooooooooooooooooooooOooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooOoooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooOoooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo..." }, { "input": "1", "output": "O" }, { "input": "2", "output": "OO" }, { "input": "3", "output": "OOO" }, { "input": "5", "output": "OOOoO" }, { "input": "17", "output": "OOOoOooOooooOoooo" }, { "input": "49", "output": "OOOoOooOooooOoooooooOooooooooooooOooooooooooooooo" }, { "input": "256", "output": "OOOoOooOooooOoooooooOooooooooooooOooooooooooooooooooooOoooooooooooooooooooooooooooooooooOooooooooooooooooooooooooooooooooooooooooooooooooooooooOooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooOooooooooooooooooooooooo" }, { "input": "512", "output": "OOOoOooOooooOoooooooOooooooooooooOooooooooooooooooooooOoooooooooooooooooooooooooooooooooOooooooooooooooooooooooooooooooooooooooooooooooooooooooOooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooOoooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooOoooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo..." }, { "input": "933", "output": "OOOoOooOooooOoooooooOooooooooooooOooooooooooooooooooooOoooooooooooooooooooooooooooooooooOooooooooooooooooooooooooooooooooooooooooooooooooooooooOooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooOoooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooOoooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo..." }, { "input": "61", "output": "OOOoOooOooooOoooooooOooooooooooooOooooooooooooooooooooOoooooo" }, { "input": "781", "output": "OOOoOooOooooOoooooooOooooooooooooOooooooooooooooooooooOoooooooooooooooooooooooooooooooooOooooooooooooooooooooooooooooooooooooooooooooooooooooooOooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooOoooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooOoooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo..." }, { "input": "999", "output": "OOOoOooOooooOoooooooOooooooooooooOooooooooooooooooooooOoooooooooooooooooooooooooooooooooOooooooooooooooooooooooooooooooooooooooooooooooooooooooOooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooOoooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooOoooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo..." } ]
1,583,905,221
2,147,483,647
Python 3
OK
TESTS
18
109
307,200
n = int(input()) v = [1,1] z =[] a,b = 1,1 for i in range(n): a,b=b,a+b v.append(b) for j in range(1,n+1): if j in v: z.append("O") else: z.append("o") print("".join(z))
Title: Eleven Time Limit: None seconds Memory Limit: None megabytes Problem Description: Eleven wants to choose a new name for herself. As a bunch of geeks, her friends suggested an algorithm to choose a name for her. Eleven wants her name to have exactly *n* characters. Her friend suggested that her name should only consist of uppercase and lowercase letters 'O'. More precisely, they suggested that the *i*-th letter of her name should be 'O' (uppercase) if *i* is a member of Fibonacci sequence, and 'o' (lowercase) otherwise. The letters in the name are numbered from 1 to *n*. Fibonacci sequence is the sequence *f* where - *f*1<==<=1, - *f*2<==<=1, - *f**n*<==<=*f**n*<=-<=2<=+<=*f**n*<=-<=1 (*n*<=&gt;<=2). As her friends are too young to know what Fibonacci sequence is, they asked you to help Eleven determine her new name. Input Specification: The first and only line of input contains an integer *n* (1<=≤<=*n*<=≤<=1000). Output Specification: Print Eleven's new name on the first and only line of output. Demo Input: ['8\n', '15\n'] Demo Output: ['OOOoOooO\n', 'OOOoOooOooooOoo\n'] Note: none
```python n = int(input()) v = [1,1] z =[] a,b = 1,1 for i in range(n): a,b=b,a+b v.append(b) for j in range(1,n+1): if j in v: z.append("O") else: z.append("o") print("".join(z)) ```
3
18
D
Seller Bob
PROGRAMMING
2,000
[ "brute force", "dp", "greedy" ]
D. Seller Bob
2
128
Last year Bob earned by selling memory sticks. During each of *n* days of his work one of the two following events took place: - A customer came to Bob and asked to sell him a 2*x* MB memory stick. If Bob had such a stick, he sold it and got 2*x* berllars. - Bob won some programming competition and got a 2*x* MB memory stick as a prize. Bob could choose whether to present this memory stick to one of his friends, or keep it. Bob never kept more than one memory stick, as he feared to mix up their capacities, and deceive a customer unintentionally. It is also known that for each memory stick capacity there was at most one customer, who wanted to buy that memory stick. Now, knowing all the customers' demands and all the prizes won at programming competitions during the last *n* days, Bob wants to know, how much money he could have earned, if he had acted optimally.
The first input line contains number *n* (1<=≤<=*n*<=≤<=5000) — amount of Bob's working days. The following *n* lines contain the description of the days. Line sell x stands for a day when a customer came to Bob to buy a 2*x* MB memory stick (0<=≤<=*x*<=≤<=2000). It's guaranteed that for each *x* there is not more than one line sell x. Line win x stands for a day when Bob won a 2*x* MB memory stick (0<=≤<=*x*<=≤<=2000).
Output the maximum possible earnings for Bob in berllars, that he would have had if he had known all the events beforehand. Don't forget, please, that Bob can't keep more than one memory stick at a time.
[ "7\nwin 10\nwin 5\nwin 3\nsell 5\nsell 3\nwin 10\nsell 10\n", "3\nwin 5\nsell 6\nsell 4\n" ]
[ "1056\n", "0\n" ]
none
0
[ { "input": "7\nwin 10\nwin 5\nwin 3\nsell 5\nsell 3\nwin 10\nsell 10", "output": "1056" }, { "input": "3\nwin 5\nsell 6\nsell 4", "output": "0" }, { "input": "60\nwin 30\nsell 30\nwin 29\nsell 29\nwin 28\nsell 28\nwin 27\nsell 27\nwin 26\nsell 26\nwin 25\nsell 25\nwin 24\nsell 24\nwin 23\nsell 23\nwin 22\nsell 22\nwin 21\nsell 21\nwin 20\nsell 20\nwin 19\nsell 19\nwin 18\nsell 18\nwin 17\nsell 17\nwin 16\nsell 16\nwin 15\nsell 15\nwin 14\nsell 14\nwin 13\nsell 13\nwin 12\nsell 12\nwin 11\nsell 11\nwin 10\nsell 10\nwin 9\nsell 9\nwin 8\nsell 8\nwin 7\nsell 7\nwin 6\nsell 6\nwin 5\nsell 5\nwin 4\nsell 4\nwin 3\nsell 3\nwin 2\nsell 2\nwin 1\nsell 1", "output": "2147483646" }, { "input": "10\nsell 179\nwin 1278\nsell 1278\nwin 179\nwin 788\nsell 788\nwin 1819\nwin 1278\nsell 1454\nsell 1819", "output": "3745951177859672748085876072016755224158263650470541376602416977749506433342393741012551962469399005106980957564747771946546075632634156222832360666586993197712597743102870994304893421406288896658113922358079050393796282759740479830789771109056742931607432542704338811780614109483471170758503563410473205320757445249359340913055427891395101189449739249593088482768598397566812797391842205760535689034164783939977837838115215972505331175064745799973957898910533590618104893265678599370512439216359131269814745054..." }, { "input": "10\nsell 573\nwin 1304\nsell 278\nwin 1631\nsell 1225\nsell 1631\nsell 177\nwin 1631\nwin 177\nsell 1304", "output": "95482312335125227379668481690754940528280513838693267460502082967052005332103697568042408703168913727303170456338425853153094403747135188778307041838920404959089576368946137708987138986696495077466398994298434148881715073638178666201165545650953479735059082316661443204882826188032944866093372620219104327689636641547141835841165681118172603993695103043804276669836594061369229043451067647935298287687852302215923887110435577776767805943668204998410716005202198549540411238299513630278811648" }, { "input": "10\nwin 1257\nwin 1934\nsell 1934\nsell 1257\nwin 1934\nwin 1257\nsell 495\nwin 495\nwin 495\nwin 1257", "output": "1556007242642049292787218246793379348327505438878680952714050868520307364441227819009733220897932984584977593931988662671459594674963394056587723382487766303981362587048873128400436836690128983570130687310221668877557121158055843621982630476422478413285775826498536883275291967793661985813155062733063913176306327509625594121241472451054995889483447103432414676059872469910105149496451402271546454282618581884282152530090816240540173251729211604658704990425330422792556824836640431985211146197816770068601144273..." }, { "input": "10\nsell 1898\nsell 173\nsell 1635\nsell 29\nsell 881\nsell 434\nsell 1236\nsell 14\nwin 29\nsell 1165", "output": "0" }, { "input": "50\nwin 1591\nwin 312\nwin 1591\nwin 1277\nwin 1732\nwin 1277\nwin 312\nwin 1591\nwin 210\nwin 1591\nwin 210\nsell 1732\nwin 312\nwin 1732\nwin 210\nwin 1591\nwin 312\nwin 210\nwin 1732\nwin 1732\nwin 1591\nwin 1732\nwin 312\nwin 1732\nsell 1277\nwin 1732\nwin 210\nwin 1277\nwin 1277\nwin 312\nwin 1732\nsell 312\nsell 1591\nwin 312\nsell 210\nwin 1732\nwin 312\nwin 210\nwin 1591\nwin 1591\nwin 1732\nwin 210\nwin 1591\nwin 312\nwin 1277\nwin 1591\nwin 210\nwin 1277\nwin 1732\nwin 312", "output": "2420764210856015331214801822295882718446835865177072936070024961324113887299407742968459201784200628346247573017634417460105466317641563795817074771860850712020768123310899251645626280515264270127874292153603360689565451372953171008749749476807656127914801962353129980445541683621172887240439496869443980760905844921588668701053404581445092887732985786593080332302468009347364906506742888063949158794894756704243685813947581549214136427388148927087858952333440295415050590550479915766637705353193400817849524933..." }, { "input": "50\nwin 596\nwin 1799\nwin 1462\nsell 460\nwin 731\nwin 723\nwin 731\nwin 329\nwin 838\nsell 728\nwin 728\nwin 460\nwin 723\nwin 1462\nwin 1462\nwin 460\nwin 329\nwin 1462\nwin 460\nwin 460\nwin 723\nwin 731\nwin 723\nwin 596\nwin 731\nwin 596\nwin 329\nwin 728\nwin 715\nwin 329\nwin 1799\nwin 715\nwin 723\nwin 728\nwin 1462\nwin 596\nwin 728\nsell 1462\nsell 731\nsell 723\nsell 596\nsell 1799\nwin 715\nsell 329\nsell 715\nwin 731\nwin 596\nwin 596\nwin 1799\nsell 838", "output": "3572417428836510418020130226151232933195365572424451233484665849446779664366143933308174097508811001879673917355296871134325099594720989439804421106898301313126179907518635998806895566124222305730664245219198882158809677890894851351153171006242601699481340338225456896495739360268670655803862712132671163869311331357956008411198419420320449558787147867731519734760711196755523479867536729489438488681378976579126837971468043235641314636566999618274861697304906262004280314028540891222536060126170572182168995779..." }, { "input": "50\nwin 879\nwin 1153\nwin 1469\nwin 157\nwin 827\nwin 679\nsell 1229\nwin 454\nsell 879\nsell 1222\nwin 924\nwin 827\nsell 1366\nwin 879\nsell 754\nwin 1153\nwin 679\nwin 1185\nsell 1469\nsell 454\nsell 679\nsell 1153\nwin 1469\nwin 827\nwin 1469\nwin 1024\nwin 1222\nsell 157\nsell 1185\nsell 827\nwin 1469\nsell 1569\nwin 754\nsell 1024\nwin 924\nwin 924\nsell 1876\nsell 479\nsell 435\nwin 754\nwin 174\nsell 174\nsell 147\nsell 924\nwin 1469\nwin 1876\nwin 1229\nwin 1469\nwin 1222\nwin 157", "output": "16332912310228701097717316802721870128775022868221080314403305773060286348016616983179506327297989866534783694332203603069900790667846028602603898749788769867206327097934433881603593880774778104853105937620753202513845830781396468839434689035327911539335925798473899153215505268301939672678983012311225261177070282290958328569587449928340374890197297462448526671963786572758011646874155763250281850311510811863346015732742889066278088442118144" }, { "input": "50\nsell 1549\nwin 1168\nsell 1120\nwin 741\nsell 633\nwin 274\nsell 1936\nwin 1168\nsell 614\nwin 33\nsell 1778\nwin 127\nsell 1168\nwin 33\nwin 633\nsell 1474\nwin 518\nwin 1685\nsell 1796\nsell 741\nsell 485\nwin 747\nsell 588\nsell 1048\nwin 1580\nwin 60\nsell 1685\nsell 1580\nsell 1535\nwin 485\nsell 31\nsell 747\nsell 1473\nsell 518\nwin 633\nsell 1313\nwin 1580\nsell 1560\nsell 127\nsell 274\nwin 123\nwin 31\nsell 123\nsell 33\nwin 1778\nsell 1834\nsell 60\nsell 1751\nsell 1287\nwin 1549", "output": "1720056425011773151265118871077591733216276990085092619030835675616738576936900493041118761959770055340668032173576279597675976622004777210845027112875371906527379337573212312341811682481516081119925150514042583039122963732518350292624889782510925425243478590699982487521431988980734651291693696303059520879874887472437061826782122289965998009474317347011699360401227487786089319043200666474560882786695043543699741809763479940250459103751744852630592882730442346682844070898735881280272505893611419620868096" }, { "input": "1\nsell 2000", "output": "0" }, { "input": "1\nwin 2000", "output": "0" }, { "input": "2\nwin 2000\nsell 2000", "output": "1148130695274254524232833201177681984022317702088695200477642736825766261392370313856659486316506269918445964638987462773447118960863055331425931356166653185391299891453122800006887791482400448714289269900634862447816154636463883639473170260404663539709049965581623988089446296056233116495361642219703326813441689089844585056023794848079140589009347765004290027167066258305220081322362812917612678833172065989953964181270217798584040421598531832515408894339020919205549577835896720391600819572166305827553804255..." } ]
1,571,819,893
2,147,483,647
PyPy 3
OK
TESTS
45
436
3,584,000
import math def solve(): n = int(input()) ans = 0 idx = [0]*2005 dp = [0]*5005 for i in range(1,n+1): opt, x = input().split() x = int(x) dp[i] = dp[i-1] if opt == "win": idx[x] = i else : if idx[x] != 0: dp[i] = max(dp[i], dp[idx[x]-1] + 2**x) print(dp[n]) if __name__ == '__main__': solve()
Title: Seller Bob Time Limit: 2 seconds Memory Limit: 128 megabytes Problem Description: Last year Bob earned by selling memory sticks. During each of *n* days of his work one of the two following events took place: - A customer came to Bob and asked to sell him a 2*x* MB memory stick. If Bob had such a stick, he sold it and got 2*x* berllars. - Bob won some programming competition and got a 2*x* MB memory stick as a prize. Bob could choose whether to present this memory stick to one of his friends, or keep it. Bob never kept more than one memory stick, as he feared to mix up their capacities, and deceive a customer unintentionally. It is also known that for each memory stick capacity there was at most one customer, who wanted to buy that memory stick. Now, knowing all the customers' demands and all the prizes won at programming competitions during the last *n* days, Bob wants to know, how much money he could have earned, if he had acted optimally. Input Specification: The first input line contains number *n* (1<=≤<=*n*<=≤<=5000) — amount of Bob's working days. The following *n* lines contain the description of the days. Line sell x stands for a day when a customer came to Bob to buy a 2*x* MB memory stick (0<=≤<=*x*<=≤<=2000). It's guaranteed that for each *x* there is not more than one line sell x. Line win x stands for a day when Bob won a 2*x* MB memory stick (0<=≤<=*x*<=≤<=2000). Output Specification: Output the maximum possible earnings for Bob in berllars, that he would have had if he had known all the events beforehand. Don't forget, please, that Bob can't keep more than one memory stick at a time. Demo Input: ['7\nwin 10\nwin 5\nwin 3\nsell 5\nsell 3\nwin 10\nsell 10\n', '3\nwin 5\nsell 6\nsell 4\n'] Demo Output: ['1056\n', '0\n'] Note: none
```python import math def solve(): n = int(input()) ans = 0 idx = [0]*2005 dp = [0]*5005 for i in range(1,n+1): opt, x = input().split() x = int(x) dp[i] = dp[i-1] if opt == "win": idx[x] = i else : if idx[x] != 0: dp[i] = max(dp[i], dp[idx[x]-1] + 2**x) print(dp[n]) if __name__ == '__main__': solve() ```
3.877649
505
B
Mr. Kitayuta's Colorful Graph
PROGRAMMING
1,400
[ "dfs and similar", "dp", "dsu", "graphs" ]
null
null
Mr. Kitayuta has just bought an undirected graph consisting of *n* vertices and *m* edges. The vertices of the graph are numbered from 1 to *n*. Each edge, namely edge *i*, has a color *c**i*, connecting vertex *a**i* and *b**i*. Mr. Kitayuta wants you to process the following *q* queries. In the *i*-th query, he gives you two integers — *u**i* and *v**i*. Find the number of the colors that satisfy the following condition: the edges of that color connect vertex *u**i* and vertex *v**i* directly or indirectly.
The first line of the input contains space-separated two integers — *n* and *m* (2<=≤<=*n*<=≤<=100,<=1<=≤<=*m*<=≤<=100), denoting the number of the vertices and the number of the edges, respectively. The next *m* lines contain space-separated three integers — *a**i*, *b**i* (1<=≤<=*a**i*<=&lt;<=*b**i*<=≤<=*n*) and *c**i* (1<=≤<=*c**i*<=≤<=*m*). Note that there can be multiple edges between two vertices. However, there are no multiple edges of the same color between two vertices, that is, if *i*<=≠<=*j*, (*a**i*,<=*b**i*,<=*c**i*)<=≠<=(*a**j*,<=*b**j*,<=*c**j*). The next line contains a integer — *q* (1<=≤<=*q*<=≤<=100), denoting the number of the queries. Then follows *q* lines, containing space-separated two integers — *u**i* and *v**i* (1<=≤<=*u**i*,<=*v**i*<=≤<=*n*). It is guaranteed that *u**i*<=≠<=*v**i*.
For each query, print the answer in a separate line.
[ "4 5\n1 2 1\n1 2 2\n2 3 1\n2 3 3\n2 4 3\n3\n1 2\n3 4\n1 4\n", "5 7\n1 5 1\n2 5 1\n3 5 1\n4 5 1\n1 2 2\n2 3 2\n3 4 2\n5\n1 5\n5 1\n2 5\n1 5\n1 4\n" ]
[ "2\n1\n0\n", "1\n1\n1\n1\n2\n" ]
Let's consider the first sample. - Vertex 1 and vertex 2 are connected by color 1 and 2. - Vertex 3 and vertex 4 are connected by color 3. - Vertex 1 and vertex 4 are not connected by any single color.
1,000
[ { "input": "4 5\n1 2 1\n1 2 2\n2 3 1\n2 3 3\n2 4 3\n3\n1 2\n3 4\n1 4", "output": "2\n1\n0" }, { "input": "5 7\n1 5 1\n2 5 1\n3 5 1\n4 5 1\n1 2 2\n2 3 2\n3 4 2\n5\n1 5\n5 1\n2 5\n1 5\n1 4", "output": "1\n1\n1\n1\n2" }, { "input": "2 1\n1 2 1\n1\n1 2", "output": "1" }, { "input": "2 3\n1 2 3\n1 2 2\n1 2 1\n1\n1 2", "output": "3" }, { "input": "2 5\n1 2 1\n1 2 2\n1 2 3\n1 2 4\n1 2 5\n1\n1 2", "output": "5" } ]
1,504,798,589
2,147,483,647
Python 3
OK
TESTS
29
62
307,200
def solution(): n,m = [int(x) for x in input().split(' ')] graphs = {} edges = {} for i in range(m): x,y,c = input().split(' ') if c not in graphs: graphs[c]={} if x not in graphs[c]: graphs[c][x] = [] if y not in graphs[c]: graphs[c][y] = [] graphs[c][x].append(y) graphs[c][y].append(x) q = int(input()) queries = [] for i in range(q): x,y = input().split(' ') ans = 0 for c,graph in graphs.items(): ans+=1 if areConnected(x,y,graph) else 0 print(ans) def areConnected(x,y,graph): if x not in graph or y not in graph: return False queu = [x] already = [x] while len(queu) != 0: current = queu[0] if current == y: return True del queu[0] already.append(current) for i in graph[current]: if i not in already and i not in queu: if i == y: return True queu.append(i) return False solution()
Title: Mr. Kitayuta's Colorful Graph Time Limit: None seconds Memory Limit: None megabytes Problem Description: Mr. Kitayuta has just bought an undirected graph consisting of *n* vertices and *m* edges. The vertices of the graph are numbered from 1 to *n*. Each edge, namely edge *i*, has a color *c**i*, connecting vertex *a**i* and *b**i*. Mr. Kitayuta wants you to process the following *q* queries. In the *i*-th query, he gives you two integers — *u**i* and *v**i*. Find the number of the colors that satisfy the following condition: the edges of that color connect vertex *u**i* and vertex *v**i* directly or indirectly. Input Specification: The first line of the input contains space-separated two integers — *n* and *m* (2<=≤<=*n*<=≤<=100,<=1<=≤<=*m*<=≤<=100), denoting the number of the vertices and the number of the edges, respectively. The next *m* lines contain space-separated three integers — *a**i*, *b**i* (1<=≤<=*a**i*<=&lt;<=*b**i*<=≤<=*n*) and *c**i* (1<=≤<=*c**i*<=≤<=*m*). Note that there can be multiple edges between two vertices. However, there are no multiple edges of the same color between two vertices, that is, if *i*<=≠<=*j*, (*a**i*,<=*b**i*,<=*c**i*)<=≠<=(*a**j*,<=*b**j*,<=*c**j*). The next line contains a integer — *q* (1<=≤<=*q*<=≤<=100), denoting the number of the queries. Then follows *q* lines, containing space-separated two integers — *u**i* and *v**i* (1<=≤<=*u**i*,<=*v**i*<=≤<=*n*). It is guaranteed that *u**i*<=≠<=*v**i*. Output Specification: For each query, print the answer in a separate line. Demo Input: ['4 5\n1 2 1\n1 2 2\n2 3 1\n2 3 3\n2 4 3\n3\n1 2\n3 4\n1 4\n', '5 7\n1 5 1\n2 5 1\n3 5 1\n4 5 1\n1 2 2\n2 3 2\n3 4 2\n5\n1 5\n5 1\n2 5\n1 5\n1 4\n'] Demo Output: ['2\n1\n0\n', '1\n1\n1\n1\n2\n'] Note: Let's consider the first sample. - Vertex 1 and vertex 2 are connected by color 1 and 2. - Vertex 3 and vertex 4 are connected by color 3. - Vertex 1 and vertex 4 are not connected by any single color.
```python def solution(): n,m = [int(x) for x in input().split(' ')] graphs = {} edges = {} for i in range(m): x,y,c = input().split(' ') if c not in graphs: graphs[c]={} if x not in graphs[c]: graphs[c][x] = [] if y not in graphs[c]: graphs[c][y] = [] graphs[c][x].append(y) graphs[c][y].append(x) q = int(input()) queries = [] for i in range(q): x,y = input().split(' ') ans = 0 for c,graph in graphs.items(): ans+=1 if areConnected(x,y,graph) else 0 print(ans) def areConnected(x,y,graph): if x not in graph or y not in graph: return False queu = [x] already = [x] while len(queu) != 0: current = queu[0] if current == y: return True del queu[0] already.append(current) for i in graph[current]: if i not in already and i not in queu: if i == y: return True queu.append(i) return False solution() ```
3
265
A
Colorful Stones (Simplified Edition)
PROGRAMMING
800
[ "implementation" ]
null
null
There is a sequence of colorful stones. The color of each stone is one of red, green, or blue. You are given a string *s*. The *i*-th (1-based) character of *s* represents the color of the *i*-th stone. If the character is "R", "G", or "B", the color of the corresponding stone is red, green, or blue, respectively. Initially Squirrel Liss is standing on the first stone. You perform instructions one or more times. Each instruction is one of the three types: "RED", "GREEN", or "BLUE". After an instruction *c*, if Liss is standing on a stone whose colors is *c*, Liss will move one stone forward, else she will not move. You are given a string *t*. The number of instructions is equal to the length of *t*, and the *i*-th character of *t* represents the *i*-th instruction. Calculate the final position of Liss (the number of the stone she is going to stand on in the end) after performing all the instructions, and print its 1-based position. It is guaranteed that Liss don't move out of the sequence.
The input contains two lines. The first line contains the string *s* (1<=≤<=|*s*|<=≤<=50). The second line contains the string *t* (1<=≤<=|*t*|<=≤<=50). The characters of each string will be one of "R", "G", or "B". It is guaranteed that Liss don't move out of the sequence.
Print the final 1-based position of Liss in a single line.
[ "RGB\nRRR\n", "RRRBGBRBBB\nBBBRR\n", "BRRBGBRGRBGRGRRGGBGBGBRGBRGRGGGRBRRRBRBBBGRRRGGBBB\nBBRBGGRGRGBBBRBGRBRBBBBRBRRRBGBBGBBRRBBGGRBRRBRGRB\n" ]
[ "2\n", "3\n", "15\n" ]
none
500
[ { "input": "RGB\nRRR", "output": "2" }, { "input": "RRRBGBRBBB\nBBBRR", "output": "3" }, { "input": "BRRBGBRGRBGRGRRGGBGBGBRGBRGRGGGRBRRRBRBBBGRRRGGBBB\nBBRBGGRGRGBBBRBGRBRBBBBRBRRRBGBBGBBRRBBGGRBRRBRGRB", "output": "15" }, { "input": "G\nRRBBRBRRBR", "output": "1" }, { "input": "RRRRRBRRBRRGRBGGRRRGRBBRBBBBBRGRBGBRRGBBBRBBGBRGBB\nB", "output": "1" }, { "input": "RRGGBRGRBG\nBRRGGBBGGR", "output": "7" }, { "input": "BBRRGBGGRGBRGBRBRBGR\nGGGRBGGGBRRRRGRBGBGRGRRBGRBGBG", "output": "15" }, { "input": "GBRRBGBGBBBBRRRGBGRRRGBGBBBRGR\nRRGBRRGRBBBBBBGRRBBR", "output": "8" }, { "input": "BRGRRGRGRRGBBGBBBRRBBRRBGBBGRGBBGGRGBRBGGGRRRBGGBB\nRGBBGRRBBBRRGRRBRBBRGBBGGGRGBGRRRRBRBGGBRBGGGRGBRR", "output": "16" }, { "input": "GGRGGBRRGRGBRRGGRBBGGRRGBBBGBBBGGRBGGBRBBRGBRRRBRG\nGGRGRRRRRRRRRGBBBBRGBRGRGRRGBBRGGBRBBRBGBRGRRRRGGR", "output": "18" }, { "input": "RBBRBGBBGGGBRRBGBRGRRGGRBBBBGRBGGBRRBGBBRBRGBBGGGG\nBRRGRBGRBGBRGBRBGGBBBGBBRGRBGRGRBGRBGGRRBGBRGRRBBG", "output": "23" }, { "input": "RRGGRRBRGRGBRGBRGBBRGGGBRBGBRGBRGGBRBRGBGRRBBGGRBR\nBRGRBBBGRBGRRGGRRRRRRRRGGGGGGGGBGGGGGGGRGRBBRGRGBR", "output": "14" }, { "input": "RBRBRRRRRGGR\nBBBBRRGGBGRBRGBBRGGGRGGBRRBRBRBGGG", "output": "12" }, { "input": "GGRGGGBRGRGRBBRGGGRBGRRR\nGBBBBGBGBGBBBRGGRGGBGRRGRRRGBGB", "output": "12" }, { "input": "RGRBGBRBBGBRRGGGBBGBRRBGRGBBBBBGRRRGGRBB\nBGR", "output": "2" }, { "input": "R\nB", "output": "1" }, { "input": "RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR\nRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR", "output": "50" }, { "input": "RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR\nGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGG", "output": "1" }, { "input": "R\nGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGG", "output": "1" } ]
1,656,796,177
2,147,483,647
Python 3
OK
TESTS
19
92
0
x = input() y = input() p = 0 for i in y: if i == x[p]: p += 1 if p == len(x): break print(p + 1)
Title: Colorful Stones (Simplified Edition) Time Limit: None seconds Memory Limit: None megabytes Problem Description: There is a sequence of colorful stones. The color of each stone is one of red, green, or blue. You are given a string *s*. The *i*-th (1-based) character of *s* represents the color of the *i*-th stone. If the character is "R", "G", or "B", the color of the corresponding stone is red, green, or blue, respectively. Initially Squirrel Liss is standing on the first stone. You perform instructions one or more times. Each instruction is one of the three types: "RED", "GREEN", or "BLUE". After an instruction *c*, if Liss is standing on a stone whose colors is *c*, Liss will move one stone forward, else she will not move. You are given a string *t*. The number of instructions is equal to the length of *t*, and the *i*-th character of *t* represents the *i*-th instruction. Calculate the final position of Liss (the number of the stone she is going to stand on in the end) after performing all the instructions, and print its 1-based position. It is guaranteed that Liss don't move out of the sequence. Input Specification: The input contains two lines. The first line contains the string *s* (1<=≤<=|*s*|<=≤<=50). The second line contains the string *t* (1<=≤<=|*t*|<=≤<=50). The characters of each string will be one of "R", "G", or "B". It is guaranteed that Liss don't move out of the sequence. Output Specification: Print the final 1-based position of Liss in a single line. Demo Input: ['RGB\nRRR\n', 'RRRBGBRBBB\nBBBRR\n', 'BRRBGBRGRBGRGRRGGBGBGBRGBRGRGGGRBRRRBRBBBGRRRGGBBB\nBBRBGGRGRGBBBRBGRBRBBBBRBRRRBGBBGBBRRBBGGRBRRBRGRB\n'] Demo Output: ['2\n', '3\n', '15\n'] Note: none
```python x = input() y = input() p = 0 for i in y: if i == x[p]: p += 1 if p == len(x): break print(p + 1) ```
3
721
A
One-dimensional Japanese Crossword
PROGRAMMING
800
[ "implementation" ]
null
null
Recently Adaltik discovered japanese crosswords. Japanese crossword is a picture, represented as a table sized *a*<=×<=*b* squares, and each square is colored white or black. There are integers to the left of the rows and to the top of the columns, encrypting the corresponding row or column. The number of integers represents how many groups of black squares there are in corresponding row or column, and the integers themselves represents the number of consecutive black squares in corresponding group (you can find more detailed explanation in Wikipedia [https://en.wikipedia.org/wiki/Japanese_crossword](https://en.wikipedia.org/wiki/Japanese_crossword)). Adaltik decided that the general case of japanese crossword is too complicated and drew a row consisting of *n* squares (e.g. japanese crossword sized 1<=×<=*n*), which he wants to encrypt in the same way as in japanese crossword. Help Adaltik find the numbers encrypting the row he drew.
The first line of the input contains a single integer *n* (1<=≤<=*n*<=≤<=100) — the length of the row. The second line of the input contains a single string consisting of *n* characters 'B' or 'W', ('B' corresponds to black square, 'W' — to white square in the row that Adaltik drew).
The first line should contain a single integer *k* — the number of integers encrypting the row, e.g. the number of groups of black squares in the row. The second line should contain *k* integers, encrypting the row, e.g. corresponding to sizes of groups of consecutive black squares in the order from left to right.
[ "3\nBBW\n", "5\nBWBWB\n", "4\nWWWW\n", "4\nBBBB\n", "13\nWBBBBWWBWBBBW\n" ]
[ "1\n2 ", "3\n1 1 1 ", "0\n", "1\n4 ", "3\n4 1 3 " ]
The last sample case correspond to the picture in the statement.
500
[ { "input": "3\nBBW", "output": "1\n2 " }, { "input": "5\nBWBWB", "output": "3\n1 1 1 " }, { "input": "4\nWWWW", "output": "0" }, { "input": "4\nBBBB", "output": "1\n4 " }, { "input": "13\nWBBBBWWBWBBBW", "output": "3\n4 1 3 " }, { "input": "1\nB", "output": "1\n1 " }, { "input": "2\nBB", "output": "1\n2 " }, { "input": "100\nWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWB", "output": "50\n1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 " }, { "input": "1\nW", "output": "0" }, { "input": "2\nWW", "output": "0" }, { "input": "2\nWB", "output": "1\n1 " }, { "input": "2\nBW", "output": "1\n1 " }, { "input": "3\nBBB", "output": "1\n3 " }, { "input": "3\nBWB", "output": "2\n1 1 " }, { "input": "3\nWBB", "output": "1\n2 " }, { "input": "3\nWWB", "output": "1\n1 " }, { "input": "3\nWBW", "output": "1\n1 " }, { "input": "3\nBWW", "output": "1\n1 " }, { "input": "3\nWWW", "output": "0" }, { "input": "100\nBBBWWWWWWBBWWBBWWWBBWBBBBBBBBBBBWBBBWBBWWWBBWWBBBWBWWBBBWWBBBWBBBBBWWWBWWBBWWWWWWBWBBWWBWWWBWBWWWWWB", "output": "21\n3 2 2 2 11 3 2 2 3 1 3 3 5 1 2 1 2 1 1 1 1 " }, { "input": "5\nBBBWB", "output": "2\n3 1 " }, { "input": "5\nBWWWB", "output": "2\n1 1 " }, { "input": "5\nWWWWB", "output": "1\n1 " }, { "input": "5\nBWWWW", "output": "1\n1 " }, { "input": "5\nBBBWW", "output": "1\n3 " }, { "input": "5\nWWBBB", "output": "1\n3 " }, { "input": "10\nBBBBBWWBBB", "output": "2\n5 3 " }, { "input": "10\nBBBBWBBWBB", "output": "3\n4 2 2 " }, { "input": "20\nBBBBBWWBWBBWBWWBWBBB", "output": "6\n5 1 2 1 1 3 " }, { "input": "20\nBBBWWWWBBWWWBWBWWBBB", "output": "5\n3 2 1 1 3 " }, { "input": "20\nBBBBBBBBWBBBWBWBWBBB", "output": "5\n8 3 1 1 3 " }, { "input": "20\nBBBWBWBWWWBBWWWWBWBB", "output": "6\n3 1 1 2 1 2 " }, { "input": "40\nBBBBBBWWWWBWBWWWBWWWWWWWWWWWBBBBBBBBBBBB", "output": "5\n6 1 1 1 12 " }, { "input": "40\nBBBBBWBWWWBBWWWBWBWWBBBBWWWWBWBWBBBBBBBB", "output": "9\n5 1 2 1 1 4 1 1 8 " }, { "input": "50\nBBBBBBBBBBBWWWWBWBWWWWBBBBBBBBWWWWWWWBWWWWBWBBBBBB", "output": "7\n11 1 1 8 1 1 6 " }, { "input": "50\nWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW", "output": "0" }, { "input": "50\nBBBBBWWWWWBWWWBWWWWWBWWWBWWWWWWBBWBBWWWWBWWWWWWWBW", "output": "9\n5 1 1 1 1 2 2 1 1 " }, { "input": "50\nWWWWBWWBWWWWWWWWWWWWWWWWWWWWWWWWWBWBWBWWWWWWWBBBBB", "output": "6\n1 1 1 1 1 5 " }, { "input": "50\nBBBBBWBWBWWBWBWWWWWWBWBWBWWWWWWWWWWWWWBWBWWWWBWWWB", "output": "12\n5 1 1 1 1 1 1 1 1 1 1 1 " }, { "input": "50\nBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB", "output": "1\n50 " }, { "input": "100\nBBBBBBBBBBBWBWWWWBWWBBWBBWWWWWWWWWWBWBWWBWWWWWWWWWWWBBBWWBBWWWWWBWBWWWWBWWWWWWWWWWWBWWWWWBBBBBBBBBBB", "output": "15\n11 1 1 2 2 1 1 1 3 2 1 1 1 1 11 " }, { "input": "100\nBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB", "output": "1\n100 " }, { "input": "100\nBBBBBBBBBBBBBBBBBBBBWBWBWWWWWBWWWWWWWWWWWWWWBBWWWBWWWWBWWBWWWWWWBWWWWWWWWWWWWWBWBBBBBBBBBBBBBBBBBBBB", "output": "11\n20 1 1 1 2 1 1 1 1 1 20 " }, { "input": "100\nBBBBWWWWWWWWWWWWWWWWWWWWWWWWWBWBWWWWWBWBWWWWWWBBWWWWWWWWWWWWBWWWWBWWWWWWWWWWWWBWWWWWWWBWWWWWWWBBBBBB", "output": "11\n4 1 1 1 1 2 1 1 1 1 6 " }, { "input": "5\nBWBWB", "output": "3\n1 1 1 " }, { "input": "10\nWWBWWWBWBB", "output": "3\n1 1 2 " }, { "input": "50\nBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB", "output": "1\n50 " }, { "input": "50\nBBBBBBBBBBBBBBBBBWWBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB", "output": "2\n17 31 " }, { "input": "100\nBBBBBBBBBBBBBBBBBBBBBBBBWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB", "output": "2\n24 42 " }, { "input": "90\nWWBWWBWBBWBBWWBWBWBBBWBWBBBWBWBWBWBWBWBWBWBBBBBWBBWWWWBWBBWBWWBBBWBWBWWBWBWBWBWWWWWWBWBBBB", "output": "30\n1 1 2 2 1 1 3 1 3 1 1 1 1 1 1 1 5 2 1 2 1 3 1 1 1 1 1 1 1 4 " }, { "input": "100\nBWWWBWBWBBBBBWBWWBWBWWWBWBWBWWBBWWBBBWBBBWWBWBWWBBBBWBWBBBWBWBBWWWWWWBWWBBBBWBWBWWBWBWWWBWBWWBWBWWWB", "output": "31\n1 1 1 5 1 1 1 1 1 1 2 3 3 1 1 4 1 3 1 2 1 4 1 1 1 1 1 1 1 1 1 " }, { "input": "90\nWBWBBBBBBWWWBBWWBWWWBBWWBWWWBWBBWBWBBWWWWBWBWBBWBBWBWWWBBWBBWWWWBWBBWWWBBBWBBWBWBBBBWWBWWB", "output": "25\n1 6 2 1 2 1 1 2 1 2 1 1 2 2 1 2 2 1 2 3 2 1 4 1 1 " }, { "input": "80\nBBWWBBBWBBWWWWBBWBWBBWWWWWBWBBWWBWBWBWBWBWWBWWBWWWBWBBWBBWBBWBBBWWBBBBBBBWBBBWBB", "output": "23\n2 3 2 2 1 2 1 2 1 1 1 1 1 1 1 1 2 2 2 3 7 3 2 " }, { "input": "65\nWWWWBWWWBBBBBWWWWWWBBBWWBBBBWWWWWWWWBBBWWWWBWBWWBBWWWWBWWWBBWBBBB", "output": "11\n1 5 3 4 3 1 1 2 1 2 4 " } ]
1,573,047,970
2,147,483,647
Python 3
OK
TESTS
54
124
0
n=int(input()) l=[] s=input() q=s[0] if q=='B': l.append(1) for i in range(1,len(s)): if s[i]!=q: if q=='W':l.append(1) q=s[i] elif s[i]=='B':l[-1]+=1 print(len(l)) if len(l)!=0:print(*l,sep=' ')
Title: One-dimensional Japanese Crossword Time Limit: None seconds Memory Limit: None megabytes Problem Description: Recently Adaltik discovered japanese crosswords. Japanese crossword is a picture, represented as a table sized *a*<=×<=*b* squares, and each square is colored white or black. There are integers to the left of the rows and to the top of the columns, encrypting the corresponding row or column. The number of integers represents how many groups of black squares there are in corresponding row or column, and the integers themselves represents the number of consecutive black squares in corresponding group (you can find more detailed explanation in Wikipedia [https://en.wikipedia.org/wiki/Japanese_crossword](https://en.wikipedia.org/wiki/Japanese_crossword)). Adaltik decided that the general case of japanese crossword is too complicated and drew a row consisting of *n* squares (e.g. japanese crossword sized 1<=×<=*n*), which he wants to encrypt in the same way as in japanese crossword. Help Adaltik find the numbers encrypting the row he drew. Input Specification: The first line of the input contains a single integer *n* (1<=≤<=*n*<=≤<=100) — the length of the row. The second line of the input contains a single string consisting of *n* characters 'B' or 'W', ('B' corresponds to black square, 'W' — to white square in the row that Adaltik drew). Output Specification: The first line should contain a single integer *k* — the number of integers encrypting the row, e.g. the number of groups of black squares in the row. The second line should contain *k* integers, encrypting the row, e.g. corresponding to sizes of groups of consecutive black squares in the order from left to right. Demo Input: ['3\nBBW\n', '5\nBWBWB\n', '4\nWWWW\n', '4\nBBBB\n', '13\nWBBBBWWBWBBBW\n'] Demo Output: ['1\n2 ', '3\n1 1 1 ', '0\n', '1\n4 ', '3\n4 1 3 '] Note: The last sample case correspond to the picture in the statement.
```python n=int(input()) l=[] s=input() q=s[0] if q=='B': l.append(1) for i in range(1,len(s)): if s[i]!=q: if q=='W':l.append(1) q=s[i] elif s[i]=='B':l[-1]+=1 print(len(l)) if len(l)!=0:print(*l,sep=' ') ```
3
342
A
Xenia and Divisors
PROGRAMMING
1,200
[ "greedy", "implementation" ]
null
null
Xenia the mathematician has a sequence consisting of *n* (*n* is divisible by 3) positive integers, each of them is at most 7. She wants to split the sequence into groups of three so that for each group of three *a*,<=*b*,<=*c* the following conditions held: - *a*<=&lt;<=*b*<=&lt;<=*c*; - *a* divides *b*, *b* divides *c*. Naturally, Xenia wants each element of the sequence to belong to exactly one group of three. Thus, if the required partition exists, then it has groups of three. Help Xenia, find the required partition or else say that it doesn't exist.
The first line contains integer *n* (3<=≤<=*n*<=≤<=99999) — the number of elements in the sequence. The next line contains *n* positive integers, each of them is at most 7. It is guaranteed that *n* is divisible by 3.
If the required partition exists, print groups of three. Print each group as values of the elements it contains. You should print values in increasing order. Separate the groups and integers in groups by whitespaces. If there are multiple solutions, you can print any of them. If there is no solution, print -1.
[ "6\n1 1 1 2 2 2\n", "6\n2 2 1 1 4 6\n" ]
[ "-1\n", "1 2 4\n1 2 6\n" ]
none
500
[ { "input": "6\n1 1 1 2 2 2", "output": "-1" }, { "input": "6\n2 2 1 1 4 6", "output": "1 2 4\n1 2 6" }, { "input": "3\n1 2 3", "output": "-1" }, { "input": "3\n7 5 7", "output": "-1" }, { "input": "3\n1 3 4", "output": "-1" }, { "input": "3\n1 1 1", "output": "-1" }, { "input": "9\n1 3 6 6 3 1 3 1 6", "output": "1 3 6\n1 3 6\n1 3 6" }, { "input": "6\n1 2 4 1 3 5", "output": "-1" }, { "input": "3\n1 3 7", "output": "-1" }, { "input": "3\n1 1 1", "output": "-1" }, { "input": "9\n1 2 4 1 2 4 1 3 6", "output": "1 2 4\n1 2 4\n1 3 6" }, { "input": "12\n3 6 1 1 3 6 1 1 2 6 2 6", "output": "1 3 6\n1 3 6\n1 2 6\n1 2 6" }, { "input": "9\n1 1 1 4 4 4 6 2 2", "output": "-1" }, { "input": "9\n1 2 4 6 3 1 3 1 5", "output": "-1" }, { "input": "15\n2 1 2 1 3 6 1 2 1 6 1 3 4 6 4", "output": "1 2 4\n1 2 4\n1 3 6\n1 3 6\n1 2 6" }, { "input": "3\n2 3 6", "output": "-1" }, { "input": "3\n2 4 6", "output": "-1" }, { "input": "3\n2 5 6", "output": "-1" }, { "input": "3\n2 4 7", "output": "-1" }, { "input": "6\n1 2 3 4 5 6", "output": "-1" }, { "input": "3\n7 7 7", "output": "-1" }, { "input": "6\n1 2 4 7 7 7", "output": "-1" }, { "input": "6\n1 1 2 6 6 6", "output": "-1" }, { "input": "9\n1 1 1 3 3 2 4 4 6", "output": "-1" }, { "input": "6\n1 2 4 5 5 5", "output": "-1" }, { "input": "15\n1 1 1 1 1 2 2 2 2 4 4 6 6 6 6", "output": "-1" }, { "input": "6\n1 1 5 5 7 7", "output": "-1" }, { "input": "9\n1 1 1 2 3 4 5 6 7", "output": "-1" }, { "input": "6\n1 1 4 4 7 7", "output": "-1" }, { "input": "24\n1 1 1 1 1 1 1 1 1 2 2 2 3 3 3 3 3 3 4 4 4 6 6 6", "output": "-1" }, { "input": "3\n1 7 6", "output": "-1" }, { "input": "6\n1 1 2 4 7 7", "output": "-1" }, { "input": "9\n1 1 1 7 7 7 7 7 7", "output": "-1" }, { "input": "9\n1 1 1 2 3 4 6 5 5", "output": "-1" } ]
1,610,442,977
2,147,483,647
PyPy 3
OK
TESTS
45
202
9,625,600
S = sorted M = lambda : map(int,input().split()) n = int(input()) x = list(M()) a, b, c, d, e = x.count(1), x.count(2), x.count(3), x.count(4), x.count(6) if d>b or d+e!=a or b+c!=a or a*3!=n: print(-1) else: for i in range(a): print(1, 2 if i < b else 3, 4 if i < d else 6)
Title: Xenia and Divisors Time Limit: None seconds Memory Limit: None megabytes Problem Description: Xenia the mathematician has a sequence consisting of *n* (*n* is divisible by 3) positive integers, each of them is at most 7. She wants to split the sequence into groups of three so that for each group of three *a*,<=*b*,<=*c* the following conditions held: - *a*<=&lt;<=*b*<=&lt;<=*c*; - *a* divides *b*, *b* divides *c*. Naturally, Xenia wants each element of the sequence to belong to exactly one group of three. Thus, if the required partition exists, then it has groups of three. Help Xenia, find the required partition or else say that it doesn't exist. Input Specification: The first line contains integer *n* (3<=≤<=*n*<=≤<=99999) — the number of elements in the sequence. The next line contains *n* positive integers, each of them is at most 7. It is guaranteed that *n* is divisible by 3. Output Specification: If the required partition exists, print groups of three. Print each group as values of the elements it contains. You should print values in increasing order. Separate the groups and integers in groups by whitespaces. If there are multiple solutions, you can print any of them. If there is no solution, print -1. Demo Input: ['6\n1 1 1 2 2 2\n', '6\n2 2 1 1 4 6\n'] Demo Output: ['-1\n', '1 2 4\n1 2 6\n'] Note: none
```python S = sorted M = lambda : map(int,input().split()) n = int(input()) x = list(M()) a, b, c, d, e = x.count(1), x.count(2), x.count(3), x.count(4), x.count(6) if d>b or d+e!=a or b+c!=a or a*3!=n: print(-1) else: for i in range(a): print(1, 2 if i < b else 3, 4 if i < d else 6) ```
3
818
A
Diplomas and Certificates
PROGRAMMING
800
[ "implementation", "math" ]
null
null
There are *n* students who have taken part in an olympiad. Now it's time to award the students. Some of them will receive diplomas, some wiil get certificates, and others won't receive anything. Students with diplomas and certificates are called winners. But there are some rules of counting the number of diplomas and certificates. The number of certificates must be exactly *k* times greater than the number of diplomas. The number of winners must not be greater than half of the number of all students (i.e. not be greater than half of *n*). It's possible that there are no winners. You have to identify the maximum possible number of winners, according to these rules. Also for this case you have to calculate the number of students with diplomas, the number of students with certificates and the number of students who are not winners.
The first (and the only) line of input contains two integers *n* and *k* (1<=≤<=*n*,<=*k*<=≤<=1012), where *n* is the number of students and *k* is the ratio between the number of certificates and the number of diplomas.
Output three numbers: the number of students with diplomas, the number of students with certificates and the number of students who are not winners in case when the number of winners is maximum possible. It's possible that there are no winners.
[ "18 2\n", "9 10\n", "1000000000000 5\n", "1000000000000 499999999999\n" ]
[ "3 6 9\n", "0 0 9\n", "83333333333 416666666665 500000000002\n", "1 499999999999 500000000000\n" ]
none
0
[ { "input": "18 2", "output": "3 6 9" }, { "input": "9 10", "output": "0 0 9" }, { "input": "1000000000000 5", "output": "83333333333 416666666665 500000000002" }, { "input": "1000000000000 499999999999", "output": "1 499999999999 500000000000" }, { "input": "1 1", "output": "0 0 1" }, { "input": "5 3", "output": "0 0 5" }, { "input": "42 6", "output": "3 18 21" }, { "input": "1000000000000 1000", "output": "499500499 499500499000 500000000501" }, { "input": "999999999999 999999", "output": "499999 499998500001 500000999999" }, { "input": "732577309725 132613", "output": "2762066 366285858458 366288689201" }, { "input": "152326362626 15", "output": "4760198832 71402982480 76163181314" }, { "input": "2 1", "output": "0 0 2" }, { "input": "1000000000000 500000000000", "output": "0 0 1000000000000" }, { "input": "100000000000 50000000011", "output": "0 0 100000000000" }, { "input": "1000000000000 32416187567", "output": "15 486242813505 513757186480" }, { "input": "1000000000000 7777777777", "output": "64 497777777728 502222222208" }, { "input": "1000000000000 77777777777", "output": "6 466666666662 533333333332" }, { "input": "100000000000 578485652", "output": "86 49749766072 50250233842" }, { "input": "999999999999 10000000000", "output": "49 490000000000 509999999950" }, { "input": "7 2", "output": "1 2 4" }, { "input": "420506530901 752346673804", "output": "0 0 420506530901" }, { "input": "960375521135 321688347872", "output": "1 321688347872 638687173262" }, { "input": "1000000000000 1000000000000", "output": "0 0 1000000000000" }, { "input": "99999999999 15253636363", "output": "3 45760909089 54239090907" }, { "input": "19 2", "output": "3 6 10" }, { "input": "999999999999 1000000000000", "output": "0 0 999999999999" }, { "input": "1000000000000 5915587276", "output": "84 496909331184 503090668732" }, { "input": "1000000000000 1000000006", "output": "499 499000002994 500999996507" }, { "input": "549755813888 134217728", "output": "2047 274743689216 275012122625" }, { "input": "99999999999 3333333", "output": "14999 49996661667 50003323333" }, { "input": "9 1", "output": "2 2 5" }, { "input": "1000000000000 250000000001", "output": "1 250000000001 749999999998" }, { "input": "5 1", "output": "1 1 3" }, { "input": "3107038133 596040207", "output": "2 1192080414 1914957717" }, { "input": "1000000000000 73786977", "output": "6776 499980556152 500019437072" }, { "input": "1000000000000 73786976", "output": "6776 499980549376 500019443848" }, { "input": "1000000000000 25000000000", "output": "19 475000000000 524999999981" }, { "input": "216929598879 768233755932", "output": "0 0 216929598879" }, { "input": "1000000000000 250000000000", "output": "1 250000000000 749999999999" }, { "input": "1000000000000 100000000001", "output": "4 400000000004 599999999992" }, { "input": "100000000000 100000000001", "output": "0 0 100000000000" }, { "input": "900000000000 100281800001", "output": "4 401127200004 498872799992" }, { "input": "906028900004 109123020071", "output": "4 436492080284 469536819716" }, { "input": "1000000000000 1", "output": "250000000000 250000000000 500000000000" } ]
1,629,133,508
2,147,483,647
Python 3
OK
TESTS
44
62
6,758,400
n, k = [int(x) for x in input().split()] h = n >> 1 w = h // (k + 1) c = k * w l = n - w - c print(w, k * w, l)
Title: Diplomas and Certificates Time Limit: None seconds Memory Limit: None megabytes Problem Description: There are *n* students who have taken part in an olympiad. Now it's time to award the students. Some of them will receive diplomas, some wiil get certificates, and others won't receive anything. Students with diplomas and certificates are called winners. But there are some rules of counting the number of diplomas and certificates. The number of certificates must be exactly *k* times greater than the number of diplomas. The number of winners must not be greater than half of the number of all students (i.e. not be greater than half of *n*). It's possible that there are no winners. You have to identify the maximum possible number of winners, according to these rules. Also for this case you have to calculate the number of students with diplomas, the number of students with certificates and the number of students who are not winners. Input Specification: The first (and the only) line of input contains two integers *n* and *k* (1<=≤<=*n*,<=*k*<=≤<=1012), where *n* is the number of students and *k* is the ratio between the number of certificates and the number of diplomas. Output Specification: Output three numbers: the number of students with diplomas, the number of students with certificates and the number of students who are not winners in case when the number of winners is maximum possible. It's possible that there are no winners. Demo Input: ['18 2\n', '9 10\n', '1000000000000 5\n', '1000000000000 499999999999\n'] Demo Output: ['3 6 9\n', '0 0 9\n', '83333333333 416666666665 500000000002\n', '1 499999999999 500000000000\n'] Note: none
```python n, k = [int(x) for x in input().split()] h = n >> 1 w = h // (k + 1) c = k * w l = n - w - c print(w, k * w, l) ```
3
104
A
Blackjack
PROGRAMMING
800
[ "implementation" ]
A. Blackjack
2
256
One rainy gloomy evening when all modules hid in the nearby cafes to drink hot energetic cocktails, the Hexadecimal virus decided to fly over the Mainframe to look for a Great Idea. And she has found one! Why not make her own Codeforces, with blackjack and other really cool stuff? Many people will surely be willing to visit this splendid shrine of high culture. In Mainframe a standard pack of 52 cards is used to play blackjack. The pack contains cards of 13 values: 2, 3, 4, 5, 6, 7, 8, 9, 10, jacks, queens, kings and aces. Each value also exists in one of four suits: hearts, diamonds, clubs and spades. Also, each card earns some value in points assigned to it: cards with value from two to ten earn from 2 to 10 points, correspondingly. An ace can either earn 1 or 11, whatever the player wishes. The picture cards (king, queen and jack) earn 10 points. The number of points a card earns does not depend on the suit. The rules of the game are very simple. The player gets two cards, if the sum of points of those cards equals *n*, then the player wins, otherwise the player loses. The player has already got the first card, it's the queen of spades. To evaluate chances for victory, you should determine how many ways there are to get the second card so that the sum of points exactly equals *n*.
The only line contains *n* (1<=≤<=*n*<=≤<=25) — the required sum of points.
Print the numbers of ways to get the second card in the required way if the first card is the queen of spades.
[ "12\n", "20\n", "10\n" ]
[ "4", "15", "0" ]
In the first sample only four two's of different suits can earn the required sum of points. In the second sample we can use all tens, jacks, queens and kings; overall it's 15 cards, as the queen of spades (as any other card) is only present once in the pack of cards and it's already in use. In the third sample there is no card, that would add a zero to the current ten points.
500
[ { "input": "12", "output": "4" }, { "input": "20", "output": "15" }, { "input": "10", "output": "0" }, { "input": "11", "output": "4" }, { "input": "15", "output": "4" }, { "input": "18", "output": "4" }, { "input": "25", "output": "0" }, { "input": "22", "output": "0" }, { "input": "1", "output": "0" }, { "input": "2", "output": "0" }, { "input": "3", "output": "0" }, { "input": "4", "output": "0" }, { "input": "5", "output": "0" }, { "input": "6", "output": "0" }, { "input": "7", "output": "0" }, { "input": "8", "output": "0" }, { "input": "9", "output": "0" }, { "input": "13", "output": "4" }, { "input": "14", "output": "4" }, { "input": "16", "output": "4" }, { "input": "17", "output": "4" }, { "input": "19", "output": "4" }, { "input": "21", "output": "4" }, { "input": "23", "output": "0" }, { "input": "24", "output": "0" } ]
1,670,423,561
2,147,483,647
Python 3
OK
TESTS
25
124
0
n = int(input()) if n <= 10 or n > 21: print(0) else: req = n - 10 if req == 10: print(15) else: print(4)
Title: Blackjack Time Limit: 2 seconds Memory Limit: 256 megabytes Problem Description: One rainy gloomy evening when all modules hid in the nearby cafes to drink hot energetic cocktails, the Hexadecimal virus decided to fly over the Mainframe to look for a Great Idea. And she has found one! Why not make her own Codeforces, with blackjack and other really cool stuff? Many people will surely be willing to visit this splendid shrine of high culture. In Mainframe a standard pack of 52 cards is used to play blackjack. The pack contains cards of 13 values: 2, 3, 4, 5, 6, 7, 8, 9, 10, jacks, queens, kings and aces. Each value also exists in one of four suits: hearts, diamonds, clubs and spades. Also, each card earns some value in points assigned to it: cards with value from two to ten earn from 2 to 10 points, correspondingly. An ace can either earn 1 or 11, whatever the player wishes. The picture cards (king, queen and jack) earn 10 points. The number of points a card earns does not depend on the suit. The rules of the game are very simple. The player gets two cards, if the sum of points of those cards equals *n*, then the player wins, otherwise the player loses. The player has already got the first card, it's the queen of spades. To evaluate chances for victory, you should determine how many ways there are to get the second card so that the sum of points exactly equals *n*. Input Specification: The only line contains *n* (1<=≤<=*n*<=≤<=25) — the required sum of points. Output Specification: Print the numbers of ways to get the second card in the required way if the first card is the queen of spades. Demo Input: ['12\n', '20\n', '10\n'] Demo Output: ['4', '15', '0'] Note: In the first sample only four two's of different suits can earn the required sum of points. In the second sample we can use all tens, jacks, queens and kings; overall it's 15 cards, as the queen of spades (as any other card) is only present once in the pack of cards and it's already in use. In the third sample there is no card, that would add a zero to the current ten points.
```python n = int(input()) if n <= 10 or n > 21: print(0) else: req = n - 10 if req == 10: print(15) else: print(4) ```
3.969
34
A
Reconnaissance 2
PROGRAMMING
800
[ "implementation" ]
A. Reconnaissance 2
2
256
*n* soldiers stand in a circle. For each soldier his height *a**i* is known. A reconnaissance unit can be made of such two neighbouring soldiers, whose heights difference is minimal, i.e. |*a**i*<=-<=*a**j*| is minimal. So each of them will be less noticeable with the other. Output any pair of soldiers that can form a reconnaissance unit.
The first line contains integer *n* (2<=≤<=*n*<=≤<=100) — amount of soldiers. Then follow the heights of the soldiers in their order in the circle — *n* space-separated integers *a*1,<=*a*2,<=...,<=*a**n* (1<=≤<=*a**i*<=≤<=1000). The soldier heights are given in clockwise or counterclockwise direction.
Output two integers — indexes of neighbouring soldiers, who should form a reconnaissance unit. If there are many optimum solutions, output any of them. Remember, that the soldiers stand in a circle.
[ "5\n10 12 13 15 10\n", "4\n10 20 30 40\n" ]
[ "5 1\n", "1 2\n" ]
none
500
[ { "input": "5\n10 12 13 15 10", "output": "5 1" }, { "input": "4\n10 20 30 40", "output": "1 2" }, { "input": "6\n744 359 230 586 944 442", "output": "2 3" }, { "input": "5\n826 747 849 687 437", "output": "1 2" }, { "input": "5\n999 999 993 969 999", "output": "1 2" }, { "input": "5\n4 24 6 1 15", "output": "3 4" }, { "input": "2\n511 32", "output": "1 2" }, { "input": "3\n907 452 355", "output": "2 3" }, { "input": "4\n303 872 764 401", "output": "4 1" }, { "input": "10\n684 698 429 694 956 812 594 170 937 764", "output": "1 2" }, { "input": "20\n646 840 437 946 640 564 936 917 487 752 844 734 468 969 674 646 728 642 514 695", "output": "7 8" }, { "input": "30\n996 999 998 984 989 1000 996 993 1000 983 992 999 999 1000 979 992 987 1000 996 1000 1000 989 981 996 995 999 999 989 999 1000", "output": "12 13" }, { "input": "50\n93 27 28 4 5 78 59 24 19 134 31 128 118 36 90 32 32 1 44 32 33 13 31 10 12 25 38 50 25 12 4 22 28 53 48 83 4 25 57 31 71 24 8 7 28 86 23 80 101 58", "output": "16 17" }, { "input": "88\n1000 1000 1000 1000 1000 998 998 1000 1000 1000 1000 999 999 1000 1000 1000 999 1000 997 999 997 1000 999 998 1000 999 1000 1000 1000 999 1000 999 999 1000 1000 999 1000 999 1000 1000 998 1000 1000 1000 998 998 1000 1000 999 1000 1000 1000 1000 1000 1000 1000 998 1000 1000 1000 999 1000 1000 999 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 998 1000 1000 1000 998 1000 1000 998 1000 999 1000 1000 1000 1000", "output": "1 2" }, { "input": "99\n4 4 21 6 5 3 13 2 6 1 3 4 1 3 1 9 11 1 6 17 4 5 20 4 1 9 5 11 3 4 14 1 3 3 1 4 3 5 27 1 1 2 10 7 11 4 19 7 11 6 11 13 3 1 10 7 2 1 16 1 9 4 29 13 2 12 14 2 21 1 9 8 26 12 12 5 2 14 7 8 8 8 9 4 12 2 6 6 7 16 8 14 2 10 20 15 3 7 4", "output": "1 2" }, { "input": "100\n713 572 318 890 577 657 646 146 373 783 392 229 455 871 20 593 573 336 26 381 280 916 907 732 820 713 111 840 570 446 184 711 481 399 788 647 492 15 40 530 549 506 719 782 126 20 778 996 712 761 9 74 812 418 488 175 103 585 900 3 604 521 109 513 145 708 990 361 682 827 791 22 596 780 596 385 450 643 158 496 876 975 319 783 654 895 891 361 397 81 682 899 347 623 809 557 435 279 513 438", "output": "86 87" }, { "input": "100\n31 75 86 68 111 27 22 22 26 30 54 163 107 75 160 122 14 23 17 26 27 20 43 58 59 71 21 148 9 32 43 91 133 286 132 70 90 156 84 14 77 93 23 18 13 72 18 131 33 28 72 175 30 86 249 20 14 208 28 57 63 199 6 10 24 30 62 267 43 479 60 28 138 1 45 3 19 47 7 166 116 117 50 140 28 14 95 85 93 43 61 15 2 70 10 51 7 95 9 25", "output": "7 8" }, { "input": "100\n896 898 967 979 973 709 961 968 806 967 896 967 826 975 936 903 986 856 851 931 852 971 786 837 949 978 686 936 952 909 965 749 908 916 943 973 983 975 939 886 964 928 960 976 907 788 994 773 949 871 947 980 945 985 726 981 887 943 907 990 931 874 840 867 948 951 961 904 888 901 976 967 994 921 828 970 972 722 755 970 860 855 914 869 714 899 969 978 898 862 642 939 904 936 819 934 884 983 955 964", "output": "1 2" }, { "input": "100\n994 927 872 970 815 986 952 996 965 1000 877 986 978 999 950 990 936 997 993 960 921 860 895 869 943 998 983 968 973 953 999 990 995 871 853 979 973 963 953 938 997 989 993 964 960 973 946 975 1000 962 920 746 989 957 904 965 920 979 966 961 1000 993 975 952 846 971 991 979 985 969 984 973 956 1000 952 778 983 974 956 927 995 997 980 997 1000 970 960 970 988 983 947 904 935 972 1000 863 992 996 932 967", "output": "81 82" }, { "input": "100\n48 108 63 21 27 8 49 21 75 8 24 42 149 18 8 28 21 18 25 35 59 70 59 33 40 1 67 34 120 82 4 115 72 87 3 15 15 63 37 12 40 27 83 14 38 20 14 58 93 10 31 3 39 6 197 77 54 16 31 146 9 49 14 8 77 82 5 11 80 116 8 61 50 24 7 103 29 11 3 3 1 12 46 24 21 131 39 29 36 2 107 40 16 99 31 41 29 48 17 17", "output": "36 37" } ]
1,594,971,768
2,147,483,647
Python 3
OK
TESTS
20
186
6,963,200
n=int(input()) ar=list(map(int,input().split())) di={} for i in range(1,n): if(abs(ar[i-1]-ar[i]) not in di): l=[] l.append(i) l.append(i+1) di[abs(ar[i-1]-ar[i])]=l di[abs(ar[-1]-ar[0])]=[n,1] #print(di) ans=min(di.keys()) print(" ".join(map(str,di[ans])))
Title: Reconnaissance 2 Time Limit: 2 seconds Memory Limit: 256 megabytes Problem Description: *n* soldiers stand in a circle. For each soldier his height *a**i* is known. A reconnaissance unit can be made of such two neighbouring soldiers, whose heights difference is minimal, i.e. |*a**i*<=-<=*a**j*| is minimal. So each of them will be less noticeable with the other. Output any pair of soldiers that can form a reconnaissance unit. Input Specification: The first line contains integer *n* (2<=≤<=*n*<=≤<=100) — amount of soldiers. Then follow the heights of the soldiers in their order in the circle — *n* space-separated integers *a*1,<=*a*2,<=...,<=*a**n* (1<=≤<=*a**i*<=≤<=1000). The soldier heights are given in clockwise or counterclockwise direction. Output Specification: Output two integers — indexes of neighbouring soldiers, who should form a reconnaissance unit. If there are many optimum solutions, output any of them. Remember, that the soldiers stand in a circle. Demo Input: ['5\n10 12 13 15 10\n', '4\n10 20 30 40\n'] Demo Output: ['5 1\n', '1 2\n'] Note: none
```python n=int(input()) ar=list(map(int,input().split())) di={} for i in range(1,n): if(abs(ar[i-1]-ar[i]) not in di): l=[] l.append(i) l.append(i+1) di[abs(ar[i-1]-ar[i])]=l di[abs(ar[-1]-ar[0])]=[n,1] #print(di) ans=min(di.keys()) print(" ".join(map(str,di[ans]))) ```
3.94053
898
A
Rounding
PROGRAMMING
800
[ "implementation", "math" ]
null
null
Vasya has a non-negative integer *n*. He wants to round it to nearest integer, which ends up with 0. If *n* already ends up with 0, Vasya considers it already rounded. For example, if *n*<==<=4722 answer is 4720. If *n*<==<=5 Vasya can round it to 0 or to 10. Both ways are correct. For given *n* find out to which integer will Vasya round it.
The first line contains single integer *n* (0<=≤<=*n*<=≤<=109) — number that Vasya has.
Print result of rounding *n*. Pay attention that in some cases answer isn't unique. In that case print any correct answer.
[ "5\n", "113\n", "1000000000\n", "5432359\n" ]
[ "0\n", "110\n", "1000000000\n", "5432360\n" ]
In the first example *n* = 5. Nearest integers, that ends up with zero are 0 and 10. Any of these answers is correct, so you can print 0 or 10.
500
[ { "input": "5", "output": "0" }, { "input": "113", "output": "110" }, { "input": "1000000000", "output": "1000000000" }, { "input": "5432359", "output": "5432360" }, { "input": "999999994", "output": "999999990" }, { "input": "10", "output": "10" }, { "input": "9", "output": "10" }, { "input": "1", "output": "0" }, { "input": "0", "output": "0" }, { "input": "3", "output": "0" }, { "input": "4", "output": "0" }, { "input": "6", "output": "10" }, { "input": "7", "output": "10" }, { "input": "8", "output": "10" }, { "input": "19", "output": "20" }, { "input": "100", "output": "100" }, { "input": "997", "output": "1000" }, { "input": "9994", "output": "9990" }, { "input": "10002", "output": "10000" }, { "input": "100000", "output": "100000" }, { "input": "99999", "output": "100000" }, { "input": "999999999", "output": "1000000000" }, { "input": "999999998", "output": "1000000000" }, { "input": "999999995", "output": "999999990" }, { "input": "999999990", "output": "999999990" }, { "input": "1000000", "output": "1000000" }, { "input": "1000010", "output": "1000010" }, { "input": "10000010", "output": "10000010" }, { "input": "100000011", "output": "100000010" }, { "input": "400000003", "output": "400000000" }, { "input": "234234", "output": "234230" }, { "input": "675621", "output": "675620" }, { "input": "43532", "output": "43530" }, { "input": "4576453", "output": "4576450" }, { "input": "65754674", "output": "65754670" }, { "input": "3245526", "output": "3245530" }, { "input": "123445", "output": "123440" }, { "input": "234217", "output": "234220" }, { "input": "23451218", "output": "23451220" }, { "input": "1231239", "output": "1231240" }, { "input": "1923140", "output": "1923140" }, { "input": "307910310", "output": "307910310" }, { "input": "780961030", "output": "780961030" }, { "input": "103509421", "output": "103509420" }, { "input": "576560141", "output": "576560140" }, { "input": "48851642", "output": "48851640" }, { "input": "226935072", "output": "226935070" }, { "input": "844450763", "output": "844450760" }, { "input": "22534183", "output": "22534180" }, { "input": "640049874", "output": "640049870" }, { "input": "818133304", "output": "818133300" }, { "input": "730616285", "output": "730616280" }, { "input": "613732415", "output": "613732410" }, { "input": "380991216", "output": "380991220" }, { "input": "559074636", "output": "559074640" }, { "input": "176590327", "output": "176590330" }, { "input": "354673757", "output": "354673760" }, { "input": "267156738", "output": "267156740" }, { "input": "150272868", "output": "150272870" }, { "input": "62755859", "output": "62755860" }, { "input": "945871979", "output": "945871980" }, { "input": "46", "output": "50" }, { "input": "999", "output": "1000" }, { "input": "1397", "output": "1400" } ]
1,592,755,329
2,147,483,647
Python 3
OK
TESTS
64
109
0
n=int(input()) p=int(n%10) if(p>=5): print(n+(10-p)) else: print(n-p)
Title: Rounding Time Limit: None seconds Memory Limit: None megabytes Problem Description: Vasya has a non-negative integer *n*. He wants to round it to nearest integer, which ends up with 0. If *n* already ends up with 0, Vasya considers it already rounded. For example, if *n*<==<=4722 answer is 4720. If *n*<==<=5 Vasya can round it to 0 or to 10. Both ways are correct. For given *n* find out to which integer will Vasya round it. Input Specification: The first line contains single integer *n* (0<=≤<=*n*<=≤<=109) — number that Vasya has. Output Specification: Print result of rounding *n*. Pay attention that in some cases answer isn't unique. In that case print any correct answer. Demo Input: ['5\n', '113\n', '1000000000\n', '5432359\n'] Demo Output: ['0\n', '110\n', '1000000000\n', '5432360\n'] Note: In the first example *n* = 5. Nearest integers, that ends up with zero are 0 and 10. Any of these answers is correct, so you can print 0 or 10.
```python n=int(input()) p=int(n%10) if(p>=5): print(n+(10-p)) else: print(n-p) ```
3
129
A
Cookies
PROGRAMMING
900
[ "implementation" ]
null
null
Olga came to visit the twins Anna and Maria and saw that they have many cookies. The cookies are distributed into bags. As there are many cookies, Olga decided that it's no big deal if she steals a bag. However, she doesn't want the sisters to quarrel because of nothing when they divide the cookies. That's why Olga wants to steal a bag with cookies so that the number of cookies in the remaining bags was even, that is, so that Anna and Maria could evenly divide it into two (even 0 remaining cookies will do, just as any other even number). How many ways there are to steal exactly one cookie bag so that the total number of cookies in the remaining bags was even?
The first line contains the only integer *n* (1<=≤<=*n*<=≤<=100) — the number of cookie bags Anna and Maria have. The second line contains *n* integers *a**i* (1<=≤<=*a**i*<=≤<=100) — the number of cookies in the *i*-th bag.
Print in the only line the only number — the sought number of ways. If there are no such ways print 0.
[ "1\n1\n", "10\n1 2 2 3 4 4 4 2 2 2\n", "11\n2 2 2 2 2 2 2 2 2 2 99\n" ]
[ "1\n", "8\n", "1\n" ]
In the first sample Olga should take the only bag so that the twins ended up with the even number of cookies. In the second sample Olga can take any of five bags with two cookies or any of three bags with four cookies — 5 + 3 = 8 ways in total. In the third sample, no matter which bag with two cookies Olga chooses, the twins are left with 2 * 9 + 99 = 117 cookies. Thus, Olga has only one option: to take the bag with 99 cookies.
500
[ { "input": "1\n1", "output": "1" }, { "input": "10\n1 2 2 3 4 4 4 2 2 2", "output": "8" }, { "input": "11\n2 2 2 2 2 2 2 2 2 2 99", "output": "1" }, { "input": "2\n1 1", "output": "0" }, { "input": "2\n2 2", "output": "2" }, { "input": "2\n1 2", "output": "1" }, { "input": "7\n7 7 7 7 7 7 7", "output": "7" }, { "input": "8\n1 2 3 4 5 6 7 8", "output": "4" }, { "input": "100\n1 1 1 1 1 2 2 2 2 2 1 1 1 1 1 2 2 2 2 2 1 1 1 1 1 2 2 2 2 2 1 1 1 1 1 2 2 2 2 2 1 1 1 1 1 2 2 2 2 2 1 1 1 1 1 2 2 2 2 2 1 1 1 1 1 2 2 2 2 2 1 1 1 1 1 2 2 2 2 2 1 1 1 1 1 2 2 2 2 2 1 1 1 1 1 2 2 2 2 2", "output": "50" }, { "input": "99\n99 100 99 100 99 100 99 100 99 100 99 100 99 100 99 100 99 100 99 100 99 100 99 100 99 100 99 100 99 100 99 100 99 100 99 100 99 100 99 100 99 100 99 100 99 100 99 100 99 100 99 100 99 100 99 100 99 100 99 100 99 100 99 100 99 100 99 100 99 100 99 100 99 100 99 100 99 100 99 100 99 100 99 100 99 100 99 100 99 100 99 100 99 100 99 100 99 100 99", "output": "49" }, { "input": "82\n43 44 96 33 23 42 33 66 53 87 8 90 43 91 40 88 51 18 48 62 59 10 22 20 54 6 13 63 2 56 31 52 98 42 54 32 26 77 9 24 33 91 16 30 39 34 78 82 73 90 12 15 67 76 30 18 44 86 84 98 65 54 100 79 28 34 40 56 11 43 72 35 86 59 89 40 30 33 7 19 44 15", "output": "50" }, { "input": "17\n50 14 17 77 74 74 38 76 41 27 45 29 66 98 38 73 38", "output": "7" }, { "input": "94\n81 19 90 99 26 11 86 44 78 36 80 59 99 90 78 72 71 20 94 56 42 40 71 84 10 85 10 70 52 27 39 55 90 16 48 25 7 79 99 100 38 10 99 56 3 4 78 9 16 57 14 40 52 54 57 70 30 86 56 84 97 60 59 69 49 66 23 92 90 46 86 73 53 47 1 83 14 20 24 66 13 45 41 14 86 75 55 88 48 95 82 24 47 87", "output": "39" }, { "input": "88\n64 95 12 90 40 65 98 45 52 54 79 7 81 25 98 19 68 82 41 53 35 50 5 22 32 21 8 39 8 6 72 27 81 30 12 79 21 42 60 2 66 87 46 93 62 78 52 71 76 32 78 94 86 85 55 15 34 76 41 20 32 26 94 81 89 45 74 49 11 40 40 39 49 46 80 85 90 23 80 40 86 58 70 26 48 93 23 53", "output": "37" }, { "input": "84\n95 9 43 43 13 84 60 90 1 8 97 99 54 34 59 83 33 15 51 26 40 12 66 65 19 30 29 78 92 60 25 13 19 84 71 73 12 24 54 49 16 41 11 40 57 59 34 40 39 9 71 83 1 77 79 53 94 47 78 55 77 85 29 52 80 90 53 77 97 97 27 79 28 23 83 25 26 22 49 86 63 56 3 32", "output": "51" }, { "input": "47\n61 97 76 94 91 22 2 68 62 73 90 47 16 79 44 71 98 68 43 6 53 52 40 27 68 67 43 96 14 91 60 61 96 24 97 13 32 65 85 96 81 77 34 18 23 14 80", "output": "21" }, { "input": "69\n71 1 78 74 58 89 30 6 100 90 22 61 11 59 14 74 27 25 78 61 45 19 25 33 37 4 52 43 53 38 9 100 56 67 69 38 76 91 63 60 93 52 28 61 9 98 8 14 57 63 89 64 98 51 36 66 36 86 13 82 50 91 52 64 86 78 78 83 81", "output": "37" }, { "input": "52\n38 78 36 75 19 3 56 1 39 97 24 79 84 16 93 55 96 64 12 24 1 86 80 29 12 32 36 36 73 39 76 65 53 98 30 20 28 8 86 43 70 22 75 69 62 65 81 25 53 40 71 59", "output": "28" }, { "input": "74\n81 31 67 97 26 75 69 81 11 13 13 74 77 88 52 20 52 64 66 75 72 28 41 54 26 75 41 91 75 15 18 36 13 83 63 61 14 48 53 63 19 67 35 48 23 65 73 100 44 55 92 88 99 17 73 25 83 7 31 89 12 80 98 39 42 75 14 29 81 35 77 87 33 94", "output": "47" }, { "input": "44\n46 56 31 31 37 71 94 2 14 100 45 72 36 72 80 3 38 54 42 98 50 32 31 42 62 31 45 50 95 100 18 17 64 22 18 25 52 56 70 57 43 40 81 28", "output": "15" }, { "input": "22\n28 57 40 74 51 4 45 84 99 12 95 14 92 60 47 81 84 51 31 91 59 42", "output": "11" }, { "input": "59\n73 45 94 76 41 49 65 13 74 66 36 25 47 75 40 23 92 72 11 32 32 8 81 26 68 56 41 8 76 47 96 55 70 11 84 14 83 18 70 22 30 39 28 100 48 11 92 45 78 69 86 1 54 90 98 91 13 17 35", "output": "33" }, { "input": "63\n20 18 44 94 68 57 16 43 74 55 68 24 21 95 76 84 50 50 47 86 86 12 58 55 28 72 86 18 34 45 81 88 3 72 41 9 60 90 81 93 12 6 9 6 2 41 1 7 9 29 81 14 64 80 20 36 67 54 7 5 35 81 22", "output": "37" }, { "input": "28\n49 84 48 19 44 91 11 82 96 95 88 90 71 82 87 25 31 23 18 13 98 45 26 65 35 12 31 14", "output": "15" }, { "input": "61\n34 18 28 64 28 45 9 77 77 20 63 92 79 16 16 100 86 2 91 91 57 15 31 95 10 88 84 5 82 83 53 98 59 17 97 80 76 80 81 3 91 81 87 93 61 46 10 49 6 22 21 75 63 89 21 81 30 19 67 38 77", "output": "35" }, { "input": "90\n41 90 43 1 28 75 90 50 3 70 76 64 81 63 25 69 83 82 29 91 59 66 21 61 7 55 72 49 38 69 72 20 64 58 30 81 61 29 96 14 39 5 100 20 29 98 75 29 44 78 97 45 26 77 73 59 22 99 41 6 3 96 71 20 9 18 96 18 90 62 34 78 54 5 41 6 73 33 2 54 26 21 18 6 45 57 43 73 95 75", "output": "42" }, { "input": "45\n93 69 4 27 20 14 71 48 79 3 32 26 49 30 57 88 13 56 49 61 37 32 47 41 41 70 45 68 82 18 8 6 25 20 15 13 71 99 28 6 52 34 19 59 26", "output": "23" }, { "input": "33\n29 95 48 49 91 10 83 71 47 25 66 36 51 12 34 10 54 74 41 96 89 26 89 1 42 33 1 62 9 32 49 65 78", "output": "15" }, { "input": "34\n98 24 42 36 41 82 28 58 89 34 77 70 76 44 74 54 66 100 13 79 4 88 21 1 11 45 91 29 87 100 29 54 82 78", "output": "13" }, { "input": "29\n91 84 26 84 9 63 52 9 65 56 90 2 36 7 67 33 91 14 65 38 53 36 81 83 85 14 33 95 51", "output": "17" }, { "input": "100\n2 88 92 82 87 100 78 28 84 43 78 32 43 33 97 19 15 52 29 84 57 72 54 13 99 28 82 79 40 70 34 92 91 53 9 88 27 43 14 92 72 37 26 37 20 95 19 34 49 64 33 37 34 27 80 79 9 54 99 68 25 4 68 73 46 66 24 78 3 87 26 52 50 84 4 95 23 83 39 58 86 36 33 16 98 2 84 19 53 12 69 60 10 11 78 17 79 92 77 59", "output": "45" }, { "input": "100\n2 95 45 73 9 54 20 97 57 82 88 26 18 71 25 27 75 54 31 11 58 85 69 75 72 91 76 5 25 80 45 49 4 73 8 81 81 38 5 12 53 77 7 96 90 35 28 80 73 94 19 69 96 17 94 49 69 9 32 19 5 12 46 29 26 40 59 59 6 95 82 50 72 2 45 69 12 5 72 29 39 72 23 96 81 28 28 56 68 58 37 41 30 1 90 84 15 24 96 43", "output": "53" }, { "input": "100\n27 72 35 91 13 10 35 45 24 55 83 84 63 96 29 79 34 67 63 92 48 83 18 77 28 27 49 66 29 88 55 15 6 58 14 67 94 36 77 7 7 64 61 52 71 18 36 99 76 6 50 67 16 13 41 7 89 73 61 51 78 22 78 32 76 100 3 31 89 71 63 53 15 85 77 54 89 33 68 74 3 23 57 5 43 89 75 35 9 86 90 11 31 46 48 37 74 17 77 8", "output": "40" }, { "input": "100\n69 98 69 88 11 49 55 8 25 91 17 81 47 26 15 73 96 71 18 42 42 61 48 14 92 78 35 72 4 27 62 75 83 79 17 16 46 80 96 90 82 54 37 69 85 21 67 70 96 10 46 63 21 59 56 92 54 88 77 30 75 45 44 29 86 100 51 11 65 69 66 56 82 63 27 1 51 51 13 10 3 55 26 85 34 16 87 72 13 100 81 71 90 95 86 50 83 55 55 54", "output": "53" }, { "input": "100\n34 35 99 64 2 66 78 93 20 48 12 79 19 10 87 7 42 92 60 79 5 2 24 89 57 48 63 92 74 4 16 51 7 12 90 48 87 17 18 73 51 58 97 97 25 38 15 97 96 73 67 91 6 75 14 13 87 79 75 3 15 55 35 95 71 45 10 13 20 37 82 26 2 22 13 83 97 84 39 79 43 100 54 59 98 8 61 34 7 65 75 44 24 77 73 88 34 95 44 77", "output": "55" }, { "input": "100\n15 86 3 1 51 26 74 85 37 87 64 58 10 6 57 26 30 47 85 65 24 72 50 40 12 35 91 47 91 60 47 87 95 34 80 91 26 3 36 39 14 86 28 70 51 44 28 21 72 79 57 61 16 71 100 94 57 67 36 74 24 21 89 85 25 2 97 67 76 53 76 80 97 64 35 13 8 32 21 52 62 61 67 14 74 73 66 44 55 76 24 3 43 42 99 61 36 80 38 66", "output": "52" }, { "input": "100\n45 16 54 54 80 94 74 93 75 85 58 95 79 30 81 2 84 4 57 23 92 64 78 1 50 36 13 27 56 54 10 77 87 1 5 38 85 74 94 82 30 45 72 83 82 30 81 82 82 3 69 82 7 92 39 60 94 42 41 5 3 17 67 21 79 44 79 96 28 3 53 68 79 89 63 83 1 44 4 31 84 15 73 77 19 66 54 6 73 1 67 24 91 11 86 45 96 82 20 89", "output": "51" }, { "input": "100\n84 23 50 32 90 71 92 43 58 70 6 82 7 55 85 19 70 89 12 26 29 56 74 30 2 27 4 39 63 67 91 81 11 33 75 10 82 88 39 43 43 80 68 35 55 67 53 62 73 65 86 74 43 51 14 48 42 92 83 57 22 33 24 99 5 27 78 96 7 28 11 15 8 38 85 67 5 92 24 96 57 59 14 95 91 4 9 18 45 33 74 83 64 85 14 51 51 94 29 2", "output": "53" }, { "input": "100\n77 56 56 45 73 55 32 37 39 50 30 95 79 21 44 34 51 43 86 91 39 30 85 15 35 93 100 14 57 31 80 79 38 40 88 4 91 54 7 95 76 26 62 84 17 33 67 47 6 82 69 51 17 2 59 24 11 12 31 90 12 11 55 38 72 49 30 50 42 46 5 97 9 9 30 45 86 23 19 82 40 42 5 40 35 98 35 32 60 60 5 28 84 35 21 49 68 53 68 23", "output": "48" }, { "input": "100\n78 38 79 61 45 86 83 83 86 90 74 69 2 84 73 39 2 5 20 71 24 80 54 89 58 34 77 40 39 62 2 47 28 53 97 75 88 98 94 96 33 71 44 90 47 36 19 89 87 98 90 87 5 85 34 79 82 3 42 88 89 63 35 7 89 30 40 48 12 41 56 76 83 60 80 80 39 56 77 4 72 96 30 55 57 51 7 19 11 1 66 1 91 87 11 62 95 85 79 25", "output": "48" }, { "input": "100\n5 34 23 20 76 75 19 51 17 82 60 13 83 6 65 16 20 43 66 54 87 10 87 73 50 24 16 98 33 28 80 52 54 82 26 92 14 13 84 92 94 29 61 21 60 20 48 94 24 20 75 70 58 27 68 45 86 89 29 8 67 38 83 48 18 100 11 22 46 84 52 97 70 19 50 75 3 7 52 53 72 41 18 31 1 38 49 53 11 64 99 76 9 87 48 12 100 32 44 71", "output": "58" }, { "input": "100\n76 89 68 78 24 72 73 95 98 72 58 15 2 5 56 32 9 65 50 70 94 31 29 54 89 52 31 93 43 56 26 35 72 95 51 55 78 70 11 92 17 5 54 94 81 31 78 95 73 91 95 37 59 9 53 48 65 55 84 8 45 97 64 37 96 34 36 53 66 17 72 48 99 23 27 18 92 84 44 73 60 78 53 29 68 99 19 39 61 40 69 6 77 12 47 29 15 4 8 45", "output": "53" }, { "input": "100\n82 40 31 53 8 50 85 93 3 84 54 17 96 59 51 42 18 19 35 84 79 31 17 46 54 82 72 49 35 73 26 89 61 73 3 50 12 29 25 77 88 21 58 24 22 89 96 54 82 29 96 56 77 16 1 68 90 93 20 23 57 22 31 18 92 90 51 14 50 72 31 54 12 50 66 62 2 34 17 45 68 50 87 97 23 71 1 72 17 82 42 15 20 78 4 49 66 59 10 17", "output": "54" }, { "input": "100\n32 82 82 24 39 53 48 5 29 24 9 37 91 37 91 95 1 97 84 52 12 56 93 47 22 20 14 17 40 22 79 34 24 2 69 30 69 29 3 89 21 46 60 92 39 29 18 24 49 18 40 22 60 13 77 50 39 64 50 70 99 8 66 31 90 38 20 54 7 21 5 56 41 68 69 20 54 89 69 62 9 53 43 89 81 97 15 2 52 78 89 65 16 61 59 42 56 25 32 52", "output": "49" }, { "input": "100\n72 54 23 24 97 14 99 87 15 25 7 23 17 87 72 31 71 87 34 82 51 77 74 85 62 38 24 7 84 48 98 21 29 71 70 84 25 58 67 92 18 44 32 9 81 15 53 29 63 18 86 16 7 31 38 99 70 32 89 16 23 11 66 96 69 82 97 59 6 9 49 80 85 19 6 9 52 51 85 74 53 46 73 55 31 63 78 61 34 80 77 65 87 77 92 52 89 8 52 31", "output": "44" }, { "input": "100\n56 88 8 19 7 15 11 54 35 50 19 57 63 72 51 43 50 19 57 90 40 100 8 92 11 96 30 32 59 65 93 47 62 3 50 41 30 50 72 83 61 46 83 60 20 46 33 1 5 18 83 22 34 16 41 95 63 63 7 59 55 95 91 29 64 60 64 81 45 45 10 9 88 37 69 85 21 82 41 76 42 34 47 78 51 83 65 100 13 22 59 76 63 1 26 86 36 94 99 74", "output": "46" }, { "input": "100\n27 89 67 60 62 80 43 50 28 88 72 5 94 11 63 91 18 78 99 3 71 26 12 97 74 62 23 24 22 3 100 72 98 7 94 32 12 75 61 88 42 48 10 14 45 9 48 56 73 76 70 70 79 90 35 39 96 37 81 11 19 65 99 39 23 79 34 61 35 74 90 37 73 23 46 21 94 84 73 58 11 89 13 9 10 85 42 78 73 32 53 39 49 90 43 5 28 31 97 75", "output": "53" }, { "input": "100\n33 24 97 96 1 14 99 51 13 65 67 20 46 88 42 44 20 49 5 89 98 83 15 40 74 83 58 3 10 79 34 2 69 28 37 100 55 52 14 8 44 94 97 89 6 42 11 28 30 33 55 56 20 57 52 25 75 1 87 42 62 41 37 12 54 85 95 80 42 36 94 96 28 76 54 36 4 17 26 24 62 15 17 79 84 36 92 78 74 91 96 77 54 92 81 91 62 98 37 37", "output": "43" }, { "input": "100\n86 24 61 15 11 85 1 31 47 36 23 36 59 34 3 27 16 29 82 28 58 52 52 66 71 61 98 39 60 20 67 41 67 90 73 29 92 17 70 95 58 98 58 32 21 73 46 56 87 72 80 75 40 27 94 31 59 92 93 37 14 99 96 21 97 23 81 91 52 52 96 94 92 28 38 29 52 16 57 27 17 24 91 21 79 55 96 98 95 94 23 78 79 12 77 35 32 75 100 82", "output": "51" }, { "input": "100\n88 85 41 37 69 21 7 69 36 5 92 26 64 75 22 46 67 20 70 22 62 66 38 24 47 49 68 30 90 31 67 86 86 82 9 51 43 45 48 42 73 44 31 94 45 60 54 66 20 87 11 94 34 32 87 66 56 28 75 39 37 90 72 93 55 72 31 42 30 71 87 61 4 12 12 81 23 61 56 98 71 32 30 33 96 63 92 16 8 78 47 91 47 54 49 3 81 82 41 5", "output": "47" }, { "input": "1\n2", "output": "1" }, { "input": "5\n1 1 3 2 2", "output": "3" } ]
1,554,707,975
2,147,483,647
PyPy 3
OK
TESTS
52
280
0
n = int(input()) s = list(map(int,input().split())) num = 0 for i in range(n): if i==0: m = sum(s[1:]) elif i==n-1: m = sum(s[:n-1]) else: m = sum(s[:i])+sum(s[i+1:]) if m%2 == 0: num += 1 print(num)
Title: Cookies Time Limit: None seconds Memory Limit: None megabytes Problem Description: Olga came to visit the twins Anna and Maria and saw that they have many cookies. The cookies are distributed into bags. As there are many cookies, Olga decided that it's no big deal if she steals a bag. However, she doesn't want the sisters to quarrel because of nothing when they divide the cookies. That's why Olga wants to steal a bag with cookies so that the number of cookies in the remaining bags was even, that is, so that Anna and Maria could evenly divide it into two (even 0 remaining cookies will do, just as any other even number). How many ways there are to steal exactly one cookie bag so that the total number of cookies in the remaining bags was even? Input Specification: The first line contains the only integer *n* (1<=≤<=*n*<=≤<=100) — the number of cookie bags Anna and Maria have. The second line contains *n* integers *a**i* (1<=≤<=*a**i*<=≤<=100) — the number of cookies in the *i*-th bag. Output Specification: Print in the only line the only number — the sought number of ways. If there are no such ways print 0. Demo Input: ['1\n1\n', '10\n1 2 2 3 4 4 4 2 2 2\n', '11\n2 2 2 2 2 2 2 2 2 2 99\n'] Demo Output: ['1\n', '8\n', '1\n'] Note: In the first sample Olga should take the only bag so that the twins ended up with the even number of cookies. In the second sample Olga can take any of five bags with two cookies or any of three bags with four cookies — 5 + 3 = 8 ways in total. In the third sample, no matter which bag with two cookies Olga chooses, the twins are left with 2 * 9 + 99 = 117 cookies. Thus, Olga has only one option: to take the bag with 99 cookies.
```python n = int(input()) s = list(map(int,input().split())) num = 0 for i in range(n): if i==0: m = sum(s[1:]) elif i==n-1: m = sum(s[:n-1]) else: m = sum(s[:i])+sum(s[i+1:]) if m%2 == 0: num += 1 print(num) ```
3
538
B
Quasi Binary
PROGRAMMING
1,400
[ "constructive algorithms", "dp", "greedy", "implementation" ]
null
null
A number is called quasibinary if its decimal representation contains only digits 0 or 1. For example, numbers 0, 1, 101, 110011 — are quasibinary and numbers 2, 12, 900 are not. You are given a positive integer *n*. Represent it as a sum of minimum number of quasibinary numbers.
The first line contains a single integer *n* (1<=≤<=*n*<=≤<=106).
In the first line print a single integer *k* — the minimum number of numbers in the representation of number *n* as a sum of quasibinary numbers. In the second line print *k* numbers — the elements of the sum. All these numbers should be quasibinary according to the definition above, their sum should equal *n*. Do not have to print the leading zeroes in the numbers. The order of numbers doesn't matter. If there are multiple possible representations, you are allowed to print any of them.
[ "9\n", "32\n" ]
[ "9\n1 1 1 1 1 1 1 1 1 \n", "3\n10 11 11 \n" ]
none
1,000
[ { "input": "9", "output": "9\n1 1 1 1 1 1 1 1 1 " }, { "input": "32", "output": "3\n10 11 11 " }, { "input": "1", "output": "1\n1 " }, { "input": "415", "output": "5\n1 101 101 101 111 " }, { "input": "10011", "output": "1\n10011 " }, { "input": "10201", "output": "2\n100 10101 " }, { "input": "314159", "output": "9\n1 1 1 1 11 1011 101011 101011 111111 " }, { "input": "999999", "output": "9\n111111 111111 111111 111111 111111 111111 111111 111111 111111 " }, { "input": "2", "output": "2\n1 1 " }, { "input": "10", "output": "1\n10 " }, { "input": "21", "output": "2\n10 11 " }, { "input": "98", "output": "9\n10 11 11 11 11 11 11 11 11 " }, { "input": "102030", "output": "3\n10 1010 101010 " }, { "input": "909090", "output": "9\n101010 101010 101010 101010 101010 101010 101010 101010 101010 " }, { "input": "909823", "output": "9\n101000 101100 101100 101100 101100 101100 101101 101111 101111 " }, { "input": "1000000", "output": "1\n1000000 " }, { "input": "111111", "output": "1\n111111 " }, { "input": "123456", "output": "6\n1 11 111 1111 11111 111111 " }, { "input": "987654", "output": "9\n100000 110000 111000 111100 111110 111111 111111 111111 111111 " }, { "input": "908172", "output": "9\n100000 101000 101010 101010 101010 101010 101010 101011 101111 " }, { "input": "8", "output": "8\n1 1 1 1 1 1 1 1 " }, { "input": "100009", "output": "9\n1 1 1 1 1 1 1 1 100001 " }, { "input": "900000", "output": "9\n100000 100000 100000 100000 100000 100000 100000 100000 100000 " }, { "input": "1435", "output": "5\n1 101 111 111 1111 " }, { "input": "1453", "output": "5\n10 110 111 111 1111 " } ]
1,546,412,429
2,147,483,647
Python 3
OK
TESTS
25
109
0
s = input() mas = [] res=0 for i,x in enumerate(s): x=int(x) for j,y in enumerate(mas): if x==0: mas[j]+='0' else: mas[j]+='1' x-=1 for i in range(x): res+=1 mas.append('1') print(res) print(*mas)
Title: Quasi Binary Time Limit: None seconds Memory Limit: None megabytes Problem Description: A number is called quasibinary if its decimal representation contains only digits 0 or 1. For example, numbers 0, 1, 101, 110011 — are quasibinary and numbers 2, 12, 900 are not. You are given a positive integer *n*. Represent it as a sum of minimum number of quasibinary numbers. Input Specification: The first line contains a single integer *n* (1<=≤<=*n*<=≤<=106). Output Specification: In the first line print a single integer *k* — the minimum number of numbers in the representation of number *n* as a sum of quasibinary numbers. In the second line print *k* numbers — the elements of the sum. All these numbers should be quasibinary according to the definition above, their sum should equal *n*. Do not have to print the leading zeroes in the numbers. The order of numbers doesn't matter. If there are multiple possible representations, you are allowed to print any of them. Demo Input: ['9\n', '32\n'] Demo Output: ['9\n1 1 1 1 1 1 1 1 1 \n', '3\n10 11 11 \n'] Note: none
```python s = input() mas = [] res=0 for i,x in enumerate(s): x=int(x) for j,y in enumerate(mas): if x==0: mas[j]+='0' else: mas[j]+='1' x-=1 for i in range(x): res+=1 mas.append('1') print(res) print(*mas) ```
3
615
A
Bulbs
PROGRAMMING
800
[ "implementation" ]
null
null
Vasya wants to turn on Christmas lights consisting of *m* bulbs. Initially, all bulbs are turned off. There are *n* buttons, each of them is connected to some set of bulbs. Vasya can press any of these buttons. When the button is pressed, it turns on all the bulbs it's connected to. Can Vasya light up all the bulbs? If Vasya presses the button such that some bulbs connected to it are already turned on, they do not change their state, i.e. remain turned on.
The first line of the input contains integers *n* and *m* (1<=≤<=*n*,<=*m*<=≤<=100) — the number of buttons and the number of bulbs respectively. Each of the next *n* lines contains *x**i* (0<=≤<=*x**i*<=≤<=*m*) — the number of bulbs that are turned on by the *i*-th button, and then *x**i* numbers *y**ij* (1<=≤<=*y**ij*<=≤<=*m*) — the numbers of these bulbs.
If it's possible to turn on all *m* bulbs print "YES", otherwise print "NO".
[ "3 4\n2 1 4\n3 1 3 1\n1 2\n", "3 3\n1 1\n1 2\n1 1\n" ]
[ "YES\n", "NO\n" ]
In the first sample you can press each button once and turn on all the bulbs. In the 2 sample it is impossible to turn on the 3-rd lamp.
500
[ { "input": "3 4\n2 1 4\n3 1 3 1\n1 2", "output": "YES" }, { "input": "3 3\n1 1\n1 2\n1 1", "output": "NO" }, { "input": "3 4\n1 1\n1 2\n1 3", "output": "NO" }, { "input": "1 5\n5 1 2 3 4 5", "output": "YES" }, { "input": "1 5\n5 4 4 1 2 3", "output": "NO" }, { "input": "1 5\n5 1 1 1 1 5", "output": "NO" }, { "input": "2 5\n4 3 1 4 2\n4 2 3 4 5", "output": "YES" }, { "input": "5 7\n2 6 7\n5 1 1 1 1 1\n3 6 5 4\n0\n4 4 3 2 1", "output": "YES" }, { "input": "100 100\n0\n0\n0\n1 53\n0\n0\n1 34\n1 54\n0\n1 14\n0\n1 33\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n1 82\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n1 34\n0\n0\n1 26\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n1 34\n0\n0\n0\n0\n0\n1 3\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n1 40\n0\n0\n0\n1 26\n0\n0\n0\n0\n0\n1 97\n0\n1 5\n0\n0\n0\n0\n0", "output": "NO" }, { "input": "100 100\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0", "output": "NO" }, { "input": "5 6\n3 1 2 6\n3 1 2 6\n1 1\n2 3 4\n3 1 5 6", "output": "YES" }, { "input": "5 2\n1 1\n1 1\n1 1\n1 1\n1 1", "output": "NO" }, { "input": "1 4\n3 1 2 3", "output": "NO" }, { "input": "1 4\n3 2 3 4", "output": "NO" }, { "input": "2 4\n3 2 3 4\n1 1", "output": "YES" }, { "input": "2 4\n3 1 2 3\n1 4", "output": "YES" }, { "input": "5 1\n0\n0\n0\n0\n0", "output": "NO" }, { "input": "1 1\n0", "output": "NO" }, { "input": "1 10\n10 1 2 3 4 5 6 7 8 9 10", "output": "YES" }, { "input": "1 1\n1 1", "output": "YES" }, { "input": "1 100\n99 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99", "output": "NO" }, { "input": "1 3\n3 1 2 1", "output": "NO" }, { "input": "1 100\n100 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100", "output": "YES" } ]
1,634,622,232
2,147,483,647
Python 3
OK
TESTS
45
46
0
n,m=map(int,input().split()) bub=[0]*m for i in range(n): turn_on=list(map(int,input().split())) turn_number=turn_on[0] for j in turn_on[1::]: bub[j-1]=1 print('YES' if bub==[1]*m else 'NO')
Title: Bulbs Time Limit: None seconds Memory Limit: None megabytes Problem Description: Vasya wants to turn on Christmas lights consisting of *m* bulbs. Initially, all bulbs are turned off. There are *n* buttons, each of them is connected to some set of bulbs. Vasya can press any of these buttons. When the button is pressed, it turns on all the bulbs it's connected to. Can Vasya light up all the bulbs? If Vasya presses the button such that some bulbs connected to it are already turned on, they do not change their state, i.e. remain turned on. Input Specification: The first line of the input contains integers *n* and *m* (1<=≤<=*n*,<=*m*<=≤<=100) — the number of buttons and the number of bulbs respectively. Each of the next *n* lines contains *x**i* (0<=≤<=*x**i*<=≤<=*m*) — the number of bulbs that are turned on by the *i*-th button, and then *x**i* numbers *y**ij* (1<=≤<=*y**ij*<=≤<=*m*) — the numbers of these bulbs. Output Specification: If it's possible to turn on all *m* bulbs print "YES", otherwise print "NO". Demo Input: ['3 4\n2 1 4\n3 1 3 1\n1 2\n', '3 3\n1 1\n1 2\n1 1\n'] Demo Output: ['YES\n', 'NO\n'] Note: In the first sample you can press each button once and turn on all the bulbs. In the 2 sample it is impossible to turn on the 3-rd lamp.
```python n,m=map(int,input().split()) bub=[0]*m for i in range(n): turn_on=list(map(int,input().split())) turn_number=turn_on[0] for j in turn_on[1::]: bub[j-1]=1 print('YES' if bub==[1]*m else 'NO') ```
3
0
none
none
none
0
[ "none" ]
null
null
There is a rectangular grid of *n* rows of *m* initially-white cells each. Arkady performed a certain number (possibly zero) of operations on it. In the *i*-th operation, a non-empty subset of rows *R**i* and a non-empty subset of columns *C**i* are chosen. For each row *r* in *R**i* and each column *c* in *C**i*, the intersection of row *r* and column *c* is coloured black. There's another constraint: a row or a column can only be chosen at most once among all operations. In other words, it means that no pair of (*i*,<=*j*) (*i*<=&lt;<=*j*) exists such that or , where denotes intersection of sets, and denotes the empty set. You are to determine whether a valid sequence of operations exists that produces a given final grid.
The first line contains two space-separated integers *n* and *m* (1<=≤<=*n*,<=*m*<=≤<=50) — the number of rows and columns of the grid, respectively. Each of the following *n* lines contains a string of *m* characters, each being either '.' (denoting a white cell) or '#' (denoting a black cell), representing the desired setup.
If the given grid can be achieved by any valid sequence of operations, output "Yes"; otherwise output "No" (both without quotes). You can print each character in any case (upper or lower).
[ "5 8\n.#.#..#.\n.....#..\n.#.#..#.\n#.#....#\n.....#..\n", "5 5\n..#..\n..#..\n#####\n..#..\n..#..\n", "5 9\n........#\n#........\n..##.#...\n.......#.\n....#.#.#\n" ]
[ "Yes\n", "No\n", "No\n" ]
For the first example, the desired setup can be produced by 3 operations, as is shown below. For the second example, the desired setup cannot be produced, since in order to colour the center row, the third row and all columns must be selected in one operation, but after that no column can be selected again, hence it won't be possible to colour the other cells in the center column.
0
[ { "input": "5 8\n.#.#..#.\n.....#..\n.#.#..#.\n#.#....#\n.....#..", "output": "Yes" }, { "input": "5 5\n..#..\n..#..\n#####\n..#..\n..#..", "output": "No" }, { "input": "5 9\n........#\n#........\n..##.#...\n.......#.\n....#.#.#", "output": "No" }, { "input": "1 1\n#", "output": "Yes" }, { "input": "2 1\n.\n#", "output": "Yes" }, { "input": "2 5\n.####\n#..##", "output": "No" }, { "input": "5 2\n##\n##\n..\n##\n..", "output": "Yes" }, { "input": "5 2\n#.\n##\n##\n#.\n..", "output": "No" }, { "input": "4 10\n###..#..##\n...##..#..\n.##..#..#.\n.........#", "output": "No" }, { "input": "4 10\n..#......#\n.....##...\n#.........\n.#.......#", "output": "No" }, { "input": "10 15\n.......#.......\n.....#.........\n....#..........\n....#..........\n.....#.........\n.....#.........\n#.............#\n...#..#........\n...............\n.............#.", "output": "Yes" }, { "input": "50 1\n.\n.\n#\n.\n#\n.\n#\n.\n.\n#\n#\n#\n.\n#\n#\n#\n#\n.\n.\n.\n.\n.\n.\n.\n.\n.\n#\n#\n#\n#\n.\n.\n.\n.\n.\n#\n.\n.\n.\n#\n#\n.\n.\n#\n#\n.\n.\n#\n#\n.", "output": "Yes" }, { "input": "2 50\n...#.##.###...#.#..##....##..........#.#..#.#####.\n...#.##.###...#.#..##....##..........#.#..#.#####.", "output": "Yes" }, { "input": "50 2\n..\n..\n#.\n..\n.#\n..\n..\n..\n.#\n..\n..\n.#\n##\n..\n..\n..\n.#\n..\n..\n.#\n..\n..\n.#\n..\n..\n.#\n..\n.#\n..\n.#\n..\n.#\n.#\n.#\n..\n..\n..\n.#\n.#\n.#\n..\n..\n.#\n.#\n..\n..\n..\n..\n..\n..", "output": "No" }, { "input": "1 1\n.", "output": "Yes" }, { "input": "2 3\n#.#\n###", "output": "No" }, { "input": "2 3\n#.#\n##.", "output": "No" }, { "input": "4 4\n###.\n##.#\n#.##\n.###", "output": "No" }, { "input": "3 3\n.##\n#.#\n##.", "output": "No" }, { "input": "2 2\n##\n#.", "output": "No" } ]
1,521,907,612
1,912
PyPy 3
OK
TESTS
50
124
21,504,000
import re n, m = map(int, input().split()) rows = [input() for _ in range(n)] cols = set() while (rows): r = rows.pop() # print("ROW: ", r) if (r.find('#') >= 0): # at least one # in line # Check if not in columns c = set([occ.start() for occ in re.finditer('#', r)]) if c & cols: # reusing column print("No") break cols |= c rows = [o for o in rows if o != r] # print(" remaining: ", cols, rows) else: print("Yes")
Title: none Time Limit: None seconds Memory Limit: None megabytes Problem Description: There is a rectangular grid of *n* rows of *m* initially-white cells each. Arkady performed a certain number (possibly zero) of operations on it. In the *i*-th operation, a non-empty subset of rows *R**i* and a non-empty subset of columns *C**i* are chosen. For each row *r* in *R**i* and each column *c* in *C**i*, the intersection of row *r* and column *c* is coloured black. There's another constraint: a row or a column can only be chosen at most once among all operations. In other words, it means that no pair of (*i*,<=*j*) (*i*<=&lt;<=*j*) exists such that or , where denotes intersection of sets, and denotes the empty set. You are to determine whether a valid sequence of operations exists that produces a given final grid. Input Specification: The first line contains two space-separated integers *n* and *m* (1<=≤<=*n*,<=*m*<=≤<=50) — the number of rows and columns of the grid, respectively. Each of the following *n* lines contains a string of *m* characters, each being either '.' (denoting a white cell) or '#' (denoting a black cell), representing the desired setup. Output Specification: If the given grid can be achieved by any valid sequence of operations, output "Yes"; otherwise output "No" (both without quotes). You can print each character in any case (upper or lower). Demo Input: ['5 8\n.#.#..#.\n.....#..\n.#.#..#.\n#.#....#\n.....#..\n', '5 5\n..#..\n..#..\n#####\n..#..\n..#..\n', '5 9\n........#\n#........\n..##.#...\n.......#.\n....#.#.#\n'] Demo Output: ['Yes\n', 'No\n', 'No\n'] Note: For the first example, the desired setup can be produced by 3 operations, as is shown below. For the second example, the desired setup cannot be produced, since in order to colour the center row, the third row and all columns must be selected in one operation, but after that no column can be selected again, hence it won't be possible to colour the other cells in the center column.
```python import re n, m = map(int, input().split()) rows = [input() for _ in range(n)] cols = set() while (rows): r = rows.pop() # print("ROW: ", r) if (r.find('#') >= 0): # at least one # in line # Check if not in columns c = set([occ.start() for occ in re.finditer('#', r)]) if c & cols: # reusing column print("No") break cols |= c rows = [o for o in rows if o != r] # print(" remaining: ", cols, rows) else: print("Yes") ```
3
432
A
Choosing Teams
PROGRAMMING
800
[ "greedy", "implementation", "sortings" ]
null
null
The Saratov State University Olympiad Programmers Training Center (SSU OPTC) has *n* students. For each student you know the number of times he/she has participated in the ACM ICPC world programming championship. According to the ACM ICPC rules, each person can participate in the world championship at most 5 times. The head of the SSU OPTC is recently gathering teams to participate in the world championship. Each team must consist of exactly three people, at that, any person cannot be a member of two or more teams. What maximum number of teams can the head make if he wants each team to participate in the world championship with the same members at least *k* times?
The first line contains two integers, *n* and *k* (1<=≤<=*n*<=≤<=2000; 1<=≤<=*k*<=≤<=5). The next line contains *n* integers: *y*1,<=*y*2,<=...,<=*y**n* (0<=≤<=*y**i*<=≤<=5), where *y**i* shows the number of times the *i*-th person participated in the ACM ICPC world championship.
Print a single number — the answer to the problem.
[ "5 2\n0 4 5 1 0\n", "6 4\n0 1 2 3 4 5\n", "6 5\n0 0 0 0 0 0\n" ]
[ "1\n", "0\n", "2\n" ]
In the first sample only one team could be made: the first, the fourth and the fifth participants. In the second sample no teams could be created. In the third sample two teams could be created. Any partition into two teams fits.
500
[ { "input": "5 2\n0 4 5 1 0", "output": "1" }, { "input": "6 4\n0 1 2 3 4 5", "output": "0" }, { "input": "6 5\n0 0 0 0 0 0", "output": "2" }, { "input": "3 4\n0 1 0", "output": "1" }, { "input": "3 4\n0 2 0", "output": "0" }, { "input": "6 5\n0 0 0 0 0 0", "output": "2" }, { "input": "12 2\n0 1 2 3 4 0 1 2 3 4 0 1", "output": "3" }, { "input": "15 2\n0 1 2 3 4 0 1 2 3 4 0 1 2 3 4", "output": "4" }, { "input": "13 1\n5 0 5 0 1 5 0 4 1 1 1 4 1", "output": "3" }, { "input": "20 1\n5 0 4 2 2 3 2 1 2 4 1 3 5 5 5 4 4 1 3 0", "output": "5" }, { "input": "20 2\n1 4 5 1 3 4 0 5 0 3 3 0 4 0 0 1 4 2 0 4", "output": "4" }, { "input": "20 2\n1 4 5 1 3 4 0 5 0 3 3 0 4 0 0 1 4 2 0 4", "output": "4" }, { "input": "20 2\n1 4 5 1 3 4 0 5 0 3 3 0 4 0 0 1 4 2 0 4", "output": "4" }, { "input": "20 2\n1 4 5 1 3 4 0 5 0 3 3 0 4 0 0 1 4 2 0 4", "output": "4" }, { "input": "6 3\n4 4 4 4 4 4", "output": "0" }, { "input": "1 4\n1", "output": "0" }, { "input": "1 1\n0", "output": "0" }, { "input": "2 3\n0 0", "output": "0" } ]
1,690,802,023
2,147,483,647
Python 3
OK
TESTS
35
46
307,200
from collections import Counter n,k=map(int,input().split()) a=Counter(map(int,input().split())) print(sum(a[i] for i in range (6-k))//3)
Title: Choosing Teams Time Limit: None seconds Memory Limit: None megabytes Problem Description: The Saratov State University Olympiad Programmers Training Center (SSU OPTC) has *n* students. For each student you know the number of times he/she has participated in the ACM ICPC world programming championship. According to the ACM ICPC rules, each person can participate in the world championship at most 5 times. The head of the SSU OPTC is recently gathering teams to participate in the world championship. Each team must consist of exactly three people, at that, any person cannot be a member of two or more teams. What maximum number of teams can the head make if he wants each team to participate in the world championship with the same members at least *k* times? Input Specification: The first line contains two integers, *n* and *k* (1<=≤<=*n*<=≤<=2000; 1<=≤<=*k*<=≤<=5). The next line contains *n* integers: *y*1,<=*y*2,<=...,<=*y**n* (0<=≤<=*y**i*<=≤<=5), where *y**i* shows the number of times the *i*-th person participated in the ACM ICPC world championship. Output Specification: Print a single number — the answer to the problem. Demo Input: ['5 2\n0 4 5 1 0\n', '6 4\n0 1 2 3 4 5\n', '6 5\n0 0 0 0 0 0\n'] Demo Output: ['1\n', '0\n', '2\n'] Note: In the first sample only one team could be made: the first, the fourth and the fifth participants. In the second sample no teams could be created. In the third sample two teams could be created. Any partition into two teams fits.
```python from collections import Counter n,k=map(int,input().split()) a=Counter(map(int,input().split())) print(sum(a[i] for i in range (6-k))//3) ```
3
290
B
QR code
PROGRAMMING
1,500
[ "*special", "implementation" ]
null
null
The input contains two integers *a*1,<=*a*2 (0<=≤<=*a**i*<=≤<=32), separated by a single space.
Output a single integer.
[ "1 1\n", "3 7\n", "13 10\n" ]
[ "0\n", "0\n", "1\n" ]
none
0
[ { "input": "1 1", "output": "0" }, { "input": "3 7", "output": "0" }, { "input": "13 10", "output": "1" }, { "input": "6 12", "output": "1" }, { "input": "14 14", "output": "0" }, { "input": "19 14", "output": "0" }, { "input": "21 18", "output": "1" }, { "input": "29 18", "output": "0" }, { "input": "0 24", "output": "0" }, { "input": "16 24", "output": "1" }, { "input": "20 28", "output": "1" }, { "input": "23 30", "output": "0" }, { "input": "23 7", "output": "1" }, { "input": "27 13", "output": "1" }, { "input": "0 13", "output": "0" }, { "input": "12 14", "output": "1" }, { "input": "21 18", "output": "1" }, { "input": "25 20", "output": "0" }, { "input": "29 24", "output": "1" }, { "input": "2 24", "output": "0" }, { "input": "14 28", "output": "0" }, { "input": "23 30", "output": "0" }, { "input": "17 32", "output": "0" }, { "input": "25 5", "output": "0" }, { "input": "29 5", "output": "0" }, { "input": "0 5", "output": "1" }, { "input": "16 11", "output": "1" }, { "input": "19 11", "output": "0" }, { "input": "27 15", "output": "1" }, { "input": "31 15", "output": "0" }, { "input": "0 0", "output": "1" }, { "input": "32 0", "output": "1" }, { "input": "0 32", "output": "1" }, { "input": "32 32", "output": "1" }, { "input": "0 31", "output": "1" }, { "input": "1 31", "output": "0" } ]
1,667,831,607
2,147,483,647
PyPy 3-64
OK
TESTS
36
92
0
x,y=map(int,input().split()) s='111111101010101111100101001111111100000100000000001010110001000001101110100110110000011010001011101101110101011001001111101001011101101110101100011000111100101011101100000101010101011010000101000001111111101010101010101010101111111000000001111101111100111100000000100010111100100001011110111111001110111001111111100100001000101100011100111010000101000111010001010011110000110001111110101100000011111111111111111000111001001011000111000010111010011010011010100100101010100010110010110101010000010101100000101010001111101000000000000010100011001101000111101011010101001001111101111000101010001110101101111111000100100001110001000000010011000100110000011010000010001101101001101110010010011011000011101011010001000111101010100110111010100110011101001101000001110110001010010101111000101111111000001000111011100001010110111110000000000001110010110100010100010110111111101000101111000110101011010100000100111010101111100100011011101110101001010000101000111111000101110100011010010010111111011010101110100100011011110110101110000100000100110011001111100111100000111111101101000101001101110010001' print(s[32*x+x+y])
Title: QR code Time Limit: None seconds Memory Limit: None megabytes Problem Description: Input Specification: The input contains two integers *a*1,<=*a*2 (0<=≤<=*a**i*<=≤<=32), separated by a single space. Output Specification: Output a single integer. Demo Input: ['1 1\n', '3 7\n', '13 10\n'] Demo Output: ['0\n', '0\n', '1\n'] Note: none
```python x,y=map(int,input().split()) s='111111101010101111100101001111111100000100000000001010110001000001101110100110110000011010001011101101110101011001001111101001011101101110101100011000111100101011101100000101010101011010000101000001111111101010101010101010101111111000000001111101111100111100000000100010111100100001011110111111001110111001111111100100001000101100011100111010000101000111010001010011110000110001111110101100000011111111111111111000111001001011000111000010111010011010011010100100101010100010110010110101010000010101100000101010001111101000000000000010100011001101000111101011010101001001111101111000101010001110101101111111000100100001110001000000010011000100110000011010000010001101101001101110010010011011000011101011010001000111101010100110111010100110011101001101000001110110001010010101111000101111111000001000111011100001010110111110000000000001110010110100010100010110111111101000101111000110101011010100000100111010101111100100011011101110101001010000101000111111000101110100011010010010111111011010101110100100011011110110101110000100000100110011001111100111100000111111101101000101001101110010001' print(s[32*x+x+y]) ```
3
43
A
Football
PROGRAMMING
1,000
[ "strings" ]
A. Football
2
256
One day Vasya decided to have a look at the results of Berland 1910 Football Championship’s finals. Unfortunately he didn't find the overall score of the match; however, he got hold of a profound description of the match's process. On the whole there are *n* lines in that description each of which described one goal. Every goal was marked with the name of the team that had scored it. Help Vasya, learn the name of the team that won the finals. It is guaranteed that the match did not end in a tie.
The first line contains an integer *n* (1<=≤<=*n*<=≤<=100) — the number of lines in the description. Then follow *n* lines — for each goal the names of the teams that scored it. The names are non-empty lines consisting of uppercase Latin letters whose lengths do not exceed 10 symbols. It is guaranteed that the match did not end in a tie and the description contains no more than two different teams.
Print the name of the winning team. We remind you that in football the team that scores more goals is considered the winner.
[ "1\nABC\n", "5\nA\nABA\nABA\nA\nA\n" ]
[ "ABC\n", "A\n" ]
none
500
[ { "input": "1\nABC", "output": "ABC" }, { "input": "5\nA\nABA\nABA\nA\nA", "output": "A" }, { "input": "2\nXTSJEP\nXTSJEP", "output": "XTSJEP" }, { "input": "3\nXZYDJAEDZ\nXZYDJAEDZ\nXZYDJAEDZ", "output": "XZYDJAEDZ" }, { "input": "3\nQCCYXL\nQCCYXL\nAXGLFQDD", "output": "QCCYXL" }, { "input": "3\nAZID\nEERWBC\nEERWBC", "output": "EERWBC" }, { "input": "3\nHNCGYL\nHNCGYL\nHNCGYL", "output": "HNCGYL" }, { "input": "4\nZZWZTG\nZZWZTG\nZZWZTG\nZZWZTG", "output": "ZZWZTG" }, { "input": "4\nA\nA\nKUDLJMXCSE\nA", "output": "A" }, { "input": "5\nPHBTW\nPHBTW\nPHBTW\nPHBTW\nPHBTW", "output": "PHBTW" }, { "input": "5\nPKUZYTFYWN\nPKUZYTFYWN\nSTC\nPKUZYTFYWN\nPKUZYTFYWN", "output": "PKUZYTFYWN" }, { "input": "5\nHH\nHH\nNTQWPA\nNTQWPA\nHH", "output": "HH" }, { "input": "10\nW\nW\nW\nW\nW\nD\nW\nD\nD\nW", "output": "W" }, { "input": "19\nXBCP\nTGACNIH\nXBCP\nXBCP\nXBCP\nXBCP\nXBCP\nTGACNIH\nXBCP\nXBCP\nXBCP\nXBCP\nXBCP\nTGACNIH\nXBCP\nXBCP\nTGACNIH\nTGACNIH\nXBCP", "output": "XBCP" }, { "input": "33\nOWQWCKLLF\nOWQWCKLLF\nOWQWCKLLF\nPYPAS\nPYPAS\nPYPAS\nOWQWCKLLF\nPYPAS\nOWQWCKLLF\nPYPAS\nPYPAS\nOWQWCKLLF\nOWQWCKLLF\nOWQWCKLLF\nPYPAS\nOWQWCKLLF\nPYPAS\nPYPAS\nPYPAS\nPYPAS\nOWQWCKLLF\nPYPAS\nPYPAS\nOWQWCKLLF\nOWQWCKLLF\nPYPAS\nOWQWCKLLF\nOWQWCKLLF\nPYPAS\nPYPAS\nOWQWCKLLF\nPYPAS\nPYPAS", "output": "PYPAS" }, { "input": "51\nNC\nNC\nNC\nNC\nNC\nNC\nNC\nNC\nNC\nNC\nNC\nNC\nNC\nNC\nNC\nNC\nNC\nNC\nNC\nNC\nNC\nNC\nNC\nNC\nNC\nNC\nNC\nNC\nNC\nNC\nNC\nNC\nNC\nNC\nNC\nNC\nNC\nNC\nNC\nNC\nNC\nNC\nNC\nNC\nNC\nNC\nNC\nNC\nNC\nNC\nNC", "output": "NC" }, { "input": "89\nH\nVOCI\nVOCI\nH\nVOCI\nH\nH\nVOCI\nVOCI\nVOCI\nH\nH\nH\nVOCI\nVOCI\nVOCI\nH\nVOCI\nVOCI\nH\nVOCI\nVOCI\nVOCI\nH\nVOCI\nH\nVOCI\nH\nVOCI\nH\nVOCI\nVOCI\nH\nVOCI\nVOCI\nVOCI\nVOCI\nVOCI\nVOCI\nH\nVOCI\nVOCI\nVOCI\nVOCI\nH\nVOCI\nH\nH\nVOCI\nH\nVOCI\nH\nVOCI\nVOCI\nVOCI\nVOCI\nVOCI\nVOCI\nVOCI\nH\nH\nVOCI\nH\nH\nVOCI\nH\nVOCI\nH\nVOCI\nVOCI\nH\nVOCI\nVOCI\nVOCI\nVOCI\nVOCI\nVOCI\nVOCI\nH\nH\nH\nH\nH\nVOCI\nH\nVOCI\nH\nVOCI\nVOCI", "output": "VOCI" }, { "input": "100\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nM\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA\nHA", "output": "HA" }, { "input": "100\nG\nG\nS\nS\nG\nG\nS\nS\nG\nS\nS\nS\nG\nS\nG\nG\nS\nG\nS\nS\nG\nS\nS\nS\nS\nS\nG\nS\nG\nS\nS\nG\nG\nG\nS\nS\nS\nS\nG\nS\nS\nG\nG\nG\nG\nG\nS\nG\nG\nS\nS\nS\nS\nS\nG\nG\nS\nG\nG\nG\nG\nG\nS\nS\nG\nS\nS\nS\nS\nG\nS\nS\nG\nS\nG\nG\nG\nG\nG\nG\nG\nG\nG\nG\nG\nS\nS\nG\nS\nS\nS\nS\nG\nG\nG\nS\nG\nG\nG\nS", "output": "G" }, { "input": "100\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nOBH\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL\nWL", "output": "WL" } ]
1,593,334,360
2,147,483,647
Python 3
OK
TESTS
34
218
6,656,000
n = int(input()) d = dict() for i in range(n): s = input() if s not in d: d[s] = 1 else : d[s] += 1 m = 0 p = '' for i in d: if d[i] > m: m = d[i] p = i print(p)
Title: Football Time Limit: 2 seconds Memory Limit: 256 megabytes Problem Description: One day Vasya decided to have a look at the results of Berland 1910 Football Championship’s finals. Unfortunately he didn't find the overall score of the match; however, he got hold of a profound description of the match's process. On the whole there are *n* lines in that description each of which described one goal. Every goal was marked with the name of the team that had scored it. Help Vasya, learn the name of the team that won the finals. It is guaranteed that the match did not end in a tie. Input Specification: The first line contains an integer *n* (1<=≤<=*n*<=≤<=100) — the number of lines in the description. Then follow *n* lines — for each goal the names of the teams that scored it. The names are non-empty lines consisting of uppercase Latin letters whose lengths do not exceed 10 symbols. It is guaranteed that the match did not end in a tie and the description contains no more than two different teams. Output Specification: Print the name of the winning team. We remind you that in football the team that scores more goals is considered the winner. Demo Input: ['1\nABC\n', '5\nA\nABA\nABA\nA\nA\n'] Demo Output: ['ABC\n', 'A\n'] Note: none
```python n = int(input()) d = dict() for i in range(n): s = input() if s not in d: d[s] = 1 else : d[s] += 1 m = 0 p = '' for i in d: if d[i] > m: m = d[i] p = i print(p) ```
3.933102
877
A
Alex and broken contest
PROGRAMMING
1,100
[ "implementation", "strings" ]
null
null
One day Alex was creating a contest about his friends, but accidentally deleted it. Fortunately, all the problems were saved, but now he needs to find them among other problems. But there are too many problems, to do it manually. Alex asks you to write a program, which will determine if a problem is from this contest by its name. It is known, that problem is from this contest if and only if its name contains one of Alex's friends' name exactly once. His friends' names are "Danil", "Olya", "Slava", "Ann" and "Nikita". Names are case sensitive.
The only line contains string from lowercase and uppercase letters and "_" symbols of length, not more than 100 — the name of the problem.
Print "YES", if problem is from this contest, and "NO" otherwise.
[ "Alex_and_broken_contest\n", "NikitaAndString\n", "Danil_and_Olya\n" ]
[ "NO", "YES", "NO" ]
none
500
[ { "input": "Alex_and_broken_contest", "output": "NO" }, { "input": "NikitaAndString", "output": "YES" }, { "input": "Danil_and_Olya", "output": "NO" }, { "input": "Slava____and_the_game", "output": "YES" }, { "input": "Olya_and_energy_drinks", "output": "YES" }, { "input": "Danil_and_part_time_job", "output": "YES" }, { "input": "Ann_and_books", "output": "YES" }, { "input": "Olya", "output": "YES" }, { "input": "Nikita", "output": "YES" }, { "input": "Slava", "output": "YES" }, { "input": "Vanya", "output": "NO" }, { "input": "I_dont_know_what_to_write_here", "output": "NO" }, { "input": "danil_and_work", "output": "NO" }, { "input": "Ann", "output": "YES" }, { "input": "Batman_Nananananananan_Batman", "output": "NO" }, { "input": "Olya_Nikita_Ann_Slava_Danil", "output": "NO" }, { "input": "its_me_Mario", "output": "NO" }, { "input": "A", "output": "NO" }, { "input": "Wake_up_Neo", "output": "NO" }, { "input": "Hardest_problem_ever", "output": "NO" }, { "input": "Nikita_Nikita", "output": "NO" }, { "input": "____________________________________________________________________________________________________", "output": "NO" }, { "input": "Nikitb", "output": "NO" }, { "input": "Unn", "output": "NO" }, { "input": "oLya_adn_smth", "output": "NO" }, { "input": "FloorISLava", "output": "NO" }, { "input": "ann", "output": "NO" }, { "input": "aa", "output": "NO" }, { "input": "AAnnnnn", "output": "YES" }, { "input": "AnnAnn", "output": "NO" }, { "input": "Annn", "output": "YES" }, { "input": "Dilzhan", "output": "NO" }, { "input": "Danilaaa", "output": "YES" }, { "input": "AndAnn", "output": "YES" }, { "input": "OlyaAnnAnn", "output": "NO" }, { "input": "DanilDanilOlya", "output": "NO" }, { "input": "DDanil", "output": "YES" }, { "input": "AnnAnnDanil", "output": "NO" }, { "input": "And_Danil", "output": "YES" }, { "input": "abcddddDanil", "output": "YES" }, { "input": "DanilOlyaOlya", "output": "NO" }, { "input": "Nikitaaa", "output": "YES" }, { "input": "aaabbba", "output": "NO" }, { "input": "Ann_Ann_Danil", "output": "NO" }, { "input": "Danil_Danil_Nikita", "output": "NO" }, { "input": "AlexaaaaaaBBBBBOlyaDDDDD", "output": "YES" }, { "input": "IloveDaniland", "output": "YES" }, { "input": "AnAnn", "output": "YES" }, { "input": "Danil_Danil_Olya", "output": "NO" }, { "input": "DanilDanilSlava", "output": "NO" }, { "input": "DanilDanil", "output": "NO" }, { "input": "OlyOlya", "output": "YES" }, { "input": "NikitaNikitb", "output": "YES" }, { "input": "ababaca", "output": "NO" }, { "input": "AnnNikitaNikitaNikitaNikita__good_luck", "output": "NO" } ]
1,517,851,532
2,147,483,647
Python 3
OK
TESTS
55
62
5,632,000
def main(): s = input() S = len(s) ct = 0 for f in ['Danil', 'Olya', 'Slava', 'Ann', 'Nikita']: F = len(f) for i in range(S-F+1): t = s[i:i+F] if f == t: ct += 1 if ct == 1: return 'YES' return 'NO' if __name__ == '__main__': print(main())
Title: Alex and broken contest Time Limit: None seconds Memory Limit: None megabytes Problem Description: One day Alex was creating a contest about his friends, but accidentally deleted it. Fortunately, all the problems were saved, but now he needs to find them among other problems. But there are too many problems, to do it manually. Alex asks you to write a program, which will determine if a problem is from this contest by its name. It is known, that problem is from this contest if and only if its name contains one of Alex's friends' name exactly once. His friends' names are "Danil", "Olya", "Slava", "Ann" and "Nikita". Names are case sensitive. Input Specification: The only line contains string from lowercase and uppercase letters and "_" symbols of length, not more than 100 — the name of the problem. Output Specification: Print "YES", if problem is from this contest, and "NO" otherwise. Demo Input: ['Alex_and_broken_contest\n', 'NikitaAndString\n', 'Danil_and_Olya\n'] Demo Output: ['NO', 'YES', 'NO'] Note: none
```python def main(): s = input() S = len(s) ct = 0 for f in ['Danil', 'Olya', 'Slava', 'Ann', 'Nikita']: F = len(f) for i in range(S-F+1): t = s[i:i+F] if f == t: ct += 1 if ct == 1: return 'YES' return 'NO' if __name__ == '__main__': print(main()) ```
3
676
A
Nicholas and Permutation
PROGRAMMING
800
[ "constructive algorithms", "implementation" ]
null
null
Nicholas has an array *a* that contains *n* distinct integers from 1 to *n*. In other words, Nicholas has a permutation of size *n*. Nicholas want the minimum element (integer 1) and the maximum element (integer *n*) to be as far as possible from each other. He wants to perform exactly one swap in order to maximize the distance between the minimum and the maximum elements. The distance between two elements is considered to be equal to the absolute difference between their positions.
The first line of the input contains a single integer *n* (2<=≤<=*n*<=≤<=100) — the size of the permutation. The second line of the input contains *n* distinct integers *a*1,<=*a*2,<=...,<=*a**n* (1<=≤<=*a**i*<=≤<=*n*), where *a**i* is equal to the element at the *i*-th position.
Print a single integer — the maximum possible distance between the minimum and the maximum elements Nicholas can achieve by performing exactly one swap.
[ "5\n4 5 1 3 2\n", "7\n1 6 5 3 4 7 2\n", "6\n6 5 4 3 2 1\n" ]
[ "3\n", "6\n", "5\n" ]
In the first sample, one may obtain the optimal answer by swapping elements 1 and 2. In the second sample, the minimum and the maximum elements will be located in the opposite ends of the array if we swap 7 and 2. In the third sample, the distance between the minimum and the maximum elements is already maximum possible, so we just perform some unnecessary swap, for example, one can swap 5 and 2.
500
[ { "input": "5\n4 5 1 3 2", "output": "3" }, { "input": "7\n1 6 5 3 4 7 2", "output": "6" }, { "input": "6\n6 5 4 3 2 1", "output": "5" }, { "input": "2\n1 2", "output": "1" }, { "input": "2\n2 1", "output": "1" }, { "input": "3\n2 3 1", "output": "2" }, { "input": "4\n4 1 3 2", "output": "3" }, { "input": "5\n1 4 5 2 3", "output": "4" }, { "input": "6\n4 6 3 5 2 1", "output": "5" }, { "input": "7\n1 5 3 6 2 4 7", "output": "6" }, { "input": "100\n76 70 67 54 40 1 48 63 64 36 42 90 99 27 47 17 93 7 13 84 16 57 74 5 83 61 19 56 52 92 38 91 82 79 34 66 71 28 37 98 35 94 77 53 73 10 26 80 15 32 8 81 3 95 44 46 72 6 33 11 21 85 4 30 24 51 49 96 87 55 14 31 12 60 45 9 29 22 58 18 88 2 50 59 20 86 23 41 100 39 62 68 69 97 78 43 25 89 65 75", "output": "94" }, { "input": "8\n4 5 3 8 6 7 1 2", "output": "6" }, { "input": "9\n6 8 5 3 4 7 9 2 1", "output": "8" }, { "input": "10\n8 7 10 1 2 3 4 6 5 9", "output": "7" }, { "input": "11\n5 4 6 9 10 11 7 3 1 2 8", "output": "8" }, { "input": "12\n3 6 7 8 9 10 12 5 4 2 11 1", "output": "11" }, { "input": "13\n8 4 3 7 5 11 9 1 10 2 13 12 6", "output": "10" }, { "input": "14\n6 10 13 9 7 1 12 14 3 2 5 4 11 8", "output": "8" }, { "input": "15\n3 14 13 12 7 2 4 11 15 1 8 6 5 10 9", "output": "9" }, { "input": "16\n11 6 9 8 7 14 12 13 10 15 2 5 3 1 4 16", "output": "15" }, { "input": "17\n13 12 5 3 9 16 8 14 2 4 10 1 6 11 7 15 17", "output": "16" }, { "input": "18\n8 6 14 17 9 11 15 13 5 3 18 1 2 7 12 16 4 10", "output": "11" }, { "input": "19\n12 19 3 11 15 6 18 14 5 10 2 13 9 7 4 8 17 16 1", "output": "18" }, { "input": "20\n15 17 10 20 7 2 16 9 13 6 18 5 19 8 11 14 4 12 3 1", "output": "19" }, { "input": "21\n1 9 14 18 13 12 11 20 16 2 4 19 15 7 6 17 8 5 3 10 21", "output": "20" }, { "input": "22\n8 3 17 4 16 21 14 11 10 15 6 18 13 12 22 20 5 2 9 7 19 1", "output": "21" }, { "input": "23\n1 23 11 20 9 3 12 4 7 17 5 15 2 10 18 16 8 22 14 13 19 21 6", "output": "22" }, { "input": "24\n2 10 23 22 20 19 18 16 11 12 15 17 21 8 24 13 1 5 6 7 14 3 9 4", "output": "16" }, { "input": "25\n12 13 22 17 1 18 14 5 21 2 10 4 3 23 11 6 20 8 24 16 15 19 9 7 25", "output": "24" }, { "input": "26\n6 21 20 16 26 17 11 2 24 4 1 12 14 8 25 7 15 10 22 5 13 18 9 23 19 3", "output": "21" }, { "input": "27\n20 14 18 10 5 3 9 4 24 22 21 27 17 15 26 2 23 7 12 11 6 8 19 25 16 13 1", "output": "26" }, { "input": "28\n28 13 16 6 1 12 4 27 22 7 18 3 21 26 25 11 5 10 20 24 19 15 14 8 23 17 9 2", "output": "27" }, { "input": "29\n21 11 10 25 2 5 9 16 29 8 17 4 15 13 6 22 7 24 19 12 18 20 1 3 23 28 27 14 26", "output": "22" }, { "input": "30\n6 19 14 22 26 17 27 8 25 3 24 30 4 18 23 16 9 13 29 20 15 2 5 11 28 12 1 10 21 7", "output": "26" }, { "input": "31\n29 13 26 27 9 28 2 16 30 21 12 11 3 31 23 6 22 20 1 5 14 24 19 18 8 4 10 17 15 25 7", "output": "18" }, { "input": "32\n15 32 11 3 18 23 19 14 5 8 6 21 13 24 25 4 16 9 27 20 17 31 2 22 7 12 30 1 26 10 29 28", "output": "30" }, { "input": "33\n22 13 10 33 8 25 15 14 21 28 27 19 26 24 1 12 5 11 32 20 30 31 18 4 6 23 7 29 16 2 17 9 3", "output": "29" }, { "input": "34\n34 30 7 16 6 1 10 23 29 13 15 25 32 26 18 11 28 3 14 21 19 5 31 33 4 17 8 9 24 20 27 22 2 12", "output": "33" }, { "input": "35\n24 33 20 8 34 11 31 25 2 4 18 13 9 35 16 30 23 32 17 1 14 22 19 21 28 26 3 15 5 12 27 29 10 6 7", "output": "21" }, { "input": "36\n1 32 27 35 22 7 34 15 18 36 31 28 13 2 10 21 20 17 16 4 3 24 19 29 11 12 25 5 33 26 14 6 9 23 30 8", "output": "35" }, { "input": "37\n24 1 12 23 11 6 30 15 4 21 13 20 25 17 5 8 36 19 32 26 14 9 7 18 10 29 37 35 16 2 22 34 3 27 31 33 28", "output": "35" }, { "input": "38\n9 35 37 28 36 21 10 25 19 4 26 5 22 7 27 18 6 14 15 24 1 17 11 34 20 8 2 16 3 23 32 31 13 12 38 33 30 29", "output": "34" }, { "input": "39\n16 28 4 33 26 36 25 23 22 30 27 7 12 34 17 6 3 38 10 24 13 31 29 39 14 32 9 20 35 11 18 21 8 2 15 37 5 19 1", "output": "38" }, { "input": "40\n35 39 28 11 9 31 36 8 5 32 26 19 38 33 2 22 23 25 6 37 12 7 3 10 17 24 20 16 27 4 34 15 40 14 18 13 29 21 30 1", "output": "39" }, { "input": "41\n24 18 7 23 3 15 1 17 25 5 30 10 34 36 2 14 9 21 41 40 20 28 33 35 12 22 11 8 19 16 31 27 26 32 29 4 13 38 37 39 6", "output": "34" }, { "input": "42\n42 15 24 26 4 34 19 29 38 32 31 33 14 41 21 3 11 39 25 6 5 20 23 10 16 36 18 28 27 1 7 40 22 30 9 2 37 17 8 12 13 35", "output": "41" }, { "input": "43\n43 24 20 13 22 29 28 4 30 3 32 40 31 8 7 9 35 27 18 5 42 6 17 19 23 12 41 21 16 37 33 34 2 14 36 38 25 10 15 39 26 11 1", "output": "42" }, { "input": "44\n4 38 6 40 29 3 44 2 30 35 25 36 34 10 11 31 21 7 14 23 37 19 27 18 5 22 1 16 17 9 39 13 15 32 43 8 41 26 42 12 24 33 20 28", "output": "37" }, { "input": "45\n45 29 24 2 31 5 34 41 26 44 33 43 15 3 4 11 21 37 27 12 14 39 23 42 16 6 13 19 8 38 20 9 25 22 40 17 32 35 18 10 28 7 30 36 1", "output": "44" }, { "input": "46\n29 3 12 33 45 40 19 17 25 27 28 1 16 23 24 46 31 8 44 15 5 32 22 11 4 36 34 10 35 26 21 7 14 2 18 9 20 41 6 43 42 37 38 13 39 30", "output": "34" }, { "input": "47\n7 3 8 12 24 16 29 10 28 38 1 20 37 40 21 5 15 6 45 23 36 44 25 43 41 4 11 42 18 35 32 31 39 33 27 30 22 34 14 13 17 47 19 9 46 26 2", "output": "41" }, { "input": "48\n29 26 14 18 34 33 13 39 32 1 37 20 35 19 28 48 30 23 46 27 5 22 24 38 12 15 8 36 43 45 16 47 6 9 31 40 44 17 2 41 11 42 25 4 21 3 10 7", "output": "38" }, { "input": "49\n16 7 42 32 11 35 15 8 23 41 6 20 47 24 9 45 49 2 37 48 25 28 5 18 3 19 12 4 22 33 13 14 10 36 44 17 40 38 30 26 1 43 29 46 21 34 27 39 31", "output": "40" }, { "input": "50\n31 45 3 34 13 43 32 4 42 9 7 8 24 14 35 6 19 46 44 17 18 1 25 20 27 41 2 16 12 10 11 47 38 21 28 49 30 15 50 36 29 26 22 39 48 5 23 37 33 40", "output": "38" }, { "input": "51\n47 29 2 11 43 44 27 1 39 14 25 30 33 21 38 45 34 51 16 50 42 31 41 46 15 48 13 19 6 37 35 7 22 28 20 4 17 10 5 8 24 40 9 36 18 49 12 26 23 3 32", "output": "43" }, { "input": "52\n16 45 23 7 15 19 43 20 4 32 35 36 9 50 5 26 38 46 13 33 12 2 48 37 41 31 10 28 8 42 3 21 11 1 17 27 34 30 44 40 6 51 49 47 25 22 18 24 52 29 14 39", "output": "48" }, { "input": "53\n53 30 50 22 51 31 32 38 12 7 39 43 1 23 6 8 24 52 2 21 34 13 3 35 5 15 19 11 47 18 9 20 29 4 36 45 27 41 25 48 16 46 44 17 10 14 42 26 40 28 33 37 49", "output": "52" }, { "input": "54\n6 39 17 3 45 52 16 21 23 48 42 36 13 37 46 10 43 27 49 7 38 32 31 30 15 25 2 29 8 51 54 19 41 44 24 34 22 5 20 14 12 1 33 40 4 26 9 35 18 28 47 50 11 53", "output": "41" }, { "input": "55\n26 15 31 21 32 43 34 51 7 12 5 44 17 54 18 25 48 47 20 3 41 24 45 2 11 22 29 39 37 53 35 28 36 9 50 10 30 38 19 13 4 8 27 1 42 6 49 23 55 40 33 16 46 14 52", "output": "48" }, { "input": "56\n6 20 38 46 10 11 40 19 5 1 47 33 4 18 32 36 37 45 56 49 48 52 12 26 31 14 2 9 24 3 16 51 41 43 23 17 34 7 29 50 55 25 39 44 22 27 54 8 28 35 30 42 13 53 21 15", "output": "46" }, { "input": "57\n39 28 53 36 3 6 12 56 55 20 50 19 43 42 18 40 24 52 38 17 33 23 22 41 14 7 26 44 45 16 35 1 8 47 31 5 30 51 32 4 37 25 13 34 54 21 46 10 15 11 2 27 29 48 49 9 57", "output": "56" }, { "input": "58\n1 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"87" }, { "input": "100\n28 30 77 4 81 67 31 25 66 56 88 73 83 51 57 34 21 90 38 76 22 99 53 70 91 3 64 54 6 94 8 5 97 80 50 45 61 40 16 95 36 98 9 2 17 44 72 55 18 58 47 12 87 24 7 32 14 23 65 41 63 48 62 39 92 27 43 19 46 13 42 52 96 84 26 69 100 79 93 49 35 60 71 59 68 15 10 29 20 1 78 33 75 86 11 85 74 82 89 37", "output": "89" }, { "input": "100\n100 97 35 55 45 3 46 98 77 64 94 85 73 43 49 79 72 9 70 62 80 88 29 58 61 20 89 83 66 86 82 15 6 87 42 96 90 75 63 38 81 40 5 23 4 18 41 19 99 60 8 12 76 51 39 93 53 26 21 50 47 28 13 30 68 59 34 54 24 56 31 27 65 16 32 10 36 52 44 91 22 14 33 25 7 78 67 17 57 37 92 11 2 69 84 95 74 71 48 1", "output": "99" }, { "input": "100\n83 96 73 70 30 25 7 77 58 89 76 85 49 82 45 51 14 62 50 9 31 32 16 15 97 64 4 37 20 93 24 10 80 71 100 39 75 72 78 74 8 29 53 86 79 48 3 68 90 99 56 87 63 94 36 1 40 65 6 44 43 84 17 52 34 95 38 47 60 57 98 59 33 41 46 81 23 27 19 2 54 91 55 35 26 12 92 18 28 66 69 21 5 67 13 11 22 88 61 42", "output": "65" }, { 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25 77 68 79 32 45 20 28 61 60 38 86 33 10 100 15 53 75 78 39 67 13 66 34 96 4 63 23 73 29 31 35 71 55 16 14 72 56 94 97 17 93 47 84 57 8 21 51 54 85 26 76 49 81 2 92 62 44 91 87 11 24 95 69 5 7 99 6 65 48 70 12 41 18 74 27 42 3 80 30 50 98 58 37 82 89 83 36 40 52 19 9 88 46 43 1 90 64", "output": "97" }, { "input": "100\n12 1 76 78 97 82 59 80 48 8 91 51 54 74 16 10 89 99 83 63 93 90 55 25 30 33 29 6 9 65 92 79 44 39 15 58 37 46 32 19 27 3 75 49 62 71 98 42 69 50 26 81 96 5 7 61 60 21 20 36 18 34 40 4 47 85 64 38 22 84 2 68 11 56 31 66 17 14 95 43 53 35 23 52 70 13 72 45 41 77 73 87 88 94 28 86 24 67 100 57", "output": "98" }, { "input": "100\n66 100 53 88 7 73 54 41 31 42 8 46 65 90 78 14 94 30 79 39 89 5 83 50 38 61 37 86 22 95 60 98 34 57 91 10 75 25 15 43 23 17 96 35 93 48 87 47 56 13 19 9 82 62 67 80 11 55 99 70 18 26 58 85 12 44 16 45 4 49 20 71 92 24 81 2 76 32 6 21 84 36 52 97 59 63 40 51 27 64 68 3 77 72 28 33 29 1 74 69", "output": "98" }, { "input": "100\n56 64 1 95 72 39 9 49 87 29 94 7 32 6 30 48 50 25 31 78 90 45 60 44 80 68 17 20 73 15 75 98 83 13 71 22 36 26 96 88 35 3 85 54 16 41 92 99 69 86 93 33 43 62 77 46 47 37 12 10 18 40 27 4 63 55 28 59 23 34 61 53 76 42 51 91 21 70 8 58 38 19 5 66 84 11 52 24 81 82 79 67 97 65 57 74 2 89 100 14", "output": "98" }, { "input": "3\n1 2 3", "output": "2" }, { "input": "3\n1 3 2", "output": "2" }, { "input": "3\n2 1 3", "output": "2" }, { "input": "3\n2 3 1", "output": "2" }, { "input": "3\n3 1 2", "output": "2" }, { "input": "3\n3 2 1", "output": "2" }, { "input": "4\n1 2 3 4", "output": "3" }, { "input": "4\n1 2 4 3", "output": "3" }, { "input": "4\n1 3 2 4", "output": "3" }, { "input": "4\n1 3 4 2", "output": "3" }, { "input": "4\n1 4 2 3", "output": "3" }, { "input": "4\n1 4 3 2", "output": "3" }, { "input": "4\n2 1 3 4", "output": "3" }, { "input": "4\n2 1 4 3", "output": "2" }, { "input": "4\n2 4 1 3", "output": "2" }, { "input": "4\n2 4 3 1", "output": "3" }, { "input": "4\n3 1 2 4", "output": "3" }, { "input": "4\n3 1 4 2", "output": "2" }, { "input": "4\n3 2 1 4", "output": "3" }, { "input": "4\n3 2 4 1", "output": "3" }, { "input": "4\n3 4 1 2", "output": "2" }, { "input": "4\n3 4 2 1", "output": "3" }, { "input": "4\n4 1 2 3", "output": "3" }, { "input": "4\n4 1 3 2", "output": "3" }, { "input": "4\n4 2 1 3", "output": "3" }, { "input": "4\n4 2 3 1", "output": "3" }, { "input": "4\n4 3 1 2", "output": "3" }, { "input": "4\n4 3 2 1", "output": "3" }, { "input": "8\n2 5 6 4 8 3 1 7", "output": "6" }, { "input": "5\n2 3 1 5 4", "output": "3" }, { "input": "6\n2 5 3 6 4 1", "output": "5" }, { "input": "6\n5 4 2 6 1 3", "output": "4" }, { "input": "6\n4 2 3 1 6 5", "output": "4" }, { "input": "6\n5 4 2 1 6 3", "output": "4" }, { "input": "9\n7 2 3 4 5 6 1 9 8", "output": "7" }, { "input": "6\n3 2 1 4 6 5", "output": "4" }, { "input": "6\n2 3 4 1 6 5", "output": "4" }, { "input": "10\n5 2 3 4 1 6 7 8 10 9", "output": "8" }, { "input": "6\n5 2 3 1 6 4", "output": "4" }, { "input": "10\n2 9 3 4 1 10 5 6 7 8", "output": "5" }, { "input": "10\n2 3 4 5 6 7 1 8 10 9", "output": "8" }, { "input": "8\n2 3 4 5 1 6 8 7", "output": "6" }, { "input": "6\n2 1 3 4 5 6", "output": "5" } ]
1,638,311,900
2,147,483,647
PyPy 3
OK
TESTS
159
77
0
n = int(input()) a = [int(c) for c in input().split()] id_mn = a.index(min(a)) id_mx = a.index(max(a)) print(max(id_mn,id_mx,n-id_mn-1,n-id_mx-1))
Title: Nicholas and Permutation Time Limit: None seconds Memory Limit: None megabytes Problem Description: Nicholas has an array *a* that contains *n* distinct integers from 1 to *n*. In other words, Nicholas has a permutation of size *n*. Nicholas want the minimum element (integer 1) and the maximum element (integer *n*) to be as far as possible from each other. He wants to perform exactly one swap in order to maximize the distance between the minimum and the maximum elements. The distance between two elements is considered to be equal to the absolute difference between their positions. Input Specification: The first line of the input contains a single integer *n* (2<=≤<=*n*<=≤<=100) — the size of the permutation. The second line of the input contains *n* distinct integers *a*1,<=*a*2,<=...,<=*a**n* (1<=≤<=*a**i*<=≤<=*n*), where *a**i* is equal to the element at the *i*-th position. Output Specification: Print a single integer — the maximum possible distance between the minimum and the maximum elements Nicholas can achieve by performing exactly one swap. Demo Input: ['5\n4 5 1 3 2\n', '7\n1 6 5 3 4 7 2\n', '6\n6 5 4 3 2 1\n'] Demo Output: ['3\n', '6\n', '5\n'] Note: In the first sample, one may obtain the optimal answer by swapping elements 1 and 2. In the second sample, the minimum and the maximum elements will be located in the opposite ends of the array if we swap 7 and 2. In the third sample, the distance between the minimum and the maximum elements is already maximum possible, so we just perform some unnecessary swap, for example, one can swap 5 and 2.
```python n = int(input()) a = [int(c) for c in input().split()] id_mn = a.index(min(a)) id_mx = a.index(max(a)) print(max(id_mn,id_mx,n-id_mn-1,n-id_mx-1)) ```
3
837
A
Text Volume
PROGRAMMING
800
[ "implementation" ]
null
null
You are given a text of single-space separated words, consisting of small and capital Latin letters. Volume of the word is number of capital letters in the word. Volume of the text is maximum volume of all words in the text. Calculate the volume of the given text.
The first line contains one integer number *n* (1<=≤<=*n*<=≤<=200) — length of the text. The second line contains text of single-space separated words *s*1,<=*s*2,<=...,<=*s**i*, consisting only of small and capital Latin letters.
Print one integer number — volume of text.
[ "7\nNonZERO\n", "24\nthis is zero answer text\n", "24\nHarbour Space University\n" ]
[ "5\n", "0\n", "1\n" ]
In the first example there is only one word, there are 5 capital letters in it. In the second example all of the words contain 0 capital letters.
0
[ { "input": "7\nNonZERO", "output": "5" }, { "input": "24\nthis is zero answer text", "output": "0" }, { "input": "24\nHarbour Space University", "output": "1" }, { "input": "2\nWM", "output": "2" }, { "input": "200\nLBmJKQLCKUgtTxMoDsEerwvLOXsxASSydOqWyULsRcjMYDWdDCgaDvBfATIWPVSXlbcCLHPYahhxMEYUiaxoCebghJqvmRnaNHYTKLeOiaLDnATPZAOgSNfBzaxLymTGjfzvTegbXsAthTxyDTcmBUkqyGlVGZhoazQzVSoKbTFcCRvYsgSCwjGMxBfWEwMHuagTBxkz", "output": "105" }, { "input": "199\no A r v H e J q k J k v w Q F p O R y R Z o a K R L Z E H t X y X N y y p b x B m r R S q i A x V S u i c L y M n N X c C W Z m S j e w C w T r I S X T D F l w o k f t X u n W w p Z r A k I Y E h s g", "output": "1" }, { "input": "200\nhCyIdivIiISmmYIsCLbpKcTyHaOgTUQEwnQACXnrLdHAVFLtvliTEMlzBVzTesQbhXmcqvwPDeojglBMIjOXANfyQxCSjOJyO SIqOTnRzVzseGIDDYNtrwIusScWSuEhPyEmgQIVEzXofRptjeMzzhtUQxJgcUWILUhEaaRmYRBVsjoqgmyPIKwSajdlNPccOOtWrez", "output": "50" }, { "input": "1\ne", "output": "0" }, { "input": "1\nA", "output": "1" }, { "input": "200\nABCDEFGHIJ ABCDEFGHIJ ABCDEFGHIJ ABCDEFGHIJ ABCDEFGHIJ ABCDEFGHIJ ABCDEFGHIJ ABCDEFGHIJ ABCDEFGHIJ ABCDEFGHIJ KLMNOPRSTU KLMNOPRSTU KLMNOPRSTU VWXYZABCDE KLMNOPRSTU KLMNOPRSTU KLMNOPRSTU KLMNOPRSTU KZ", "output": "10" }, { "input": "200\nAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA", "output": "200" }, { "input": "200\nffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", "output": "0" }, { "input": "24\nHarbour Space UniversitY", "output": "2" }, { "input": "5\naA AA", "output": "2" }, { "input": "10\nas AS ASDA", "output": "4" }, { "input": "10\nas AS ASDZ", "output": "4" }, { "input": "3\na A", "output": "1" }, { "input": "24\nHarbour space UniversitY", "output": "2" }, { "input": "10\nas AS ASAa", "output": "3" }, { "input": "15\naAb ABCDFGRHTJS", "output": "11" }, { "input": "53\nsdfAZEZR AZE dfdf dsdRFGSDF ZZDZSD dfsd ERBGF dsfsdfR", "output": "6" }, { "input": "10\nABC ABc AB", "output": "3" }, { "input": "10\nA c de CDE", "output": "3" }, { "input": "4\nA AB", "output": "2" }, { "input": "18\nHARbour Space UNIV", "output": "4" }, { "input": "13\na b c d e f A", "output": "1" }, { "input": "6\nA B CA", "output": "2" }, { "input": "4\naa A", "output": "1" }, { "input": "3\nA a", "output": "1" } ]
1,501,859,564
164
Python 3
OK
TESTS
29
62
4,608,000
input() a = input().split() ans = -1 for s in a: cur = 0 for c in s: if ord('A') <= ord(c) <= ord('Z'): cur += 1 ans = max(ans, cur) print(ans)
Title: Text Volume Time Limit: None seconds Memory Limit: None megabytes Problem Description: You are given a text of single-space separated words, consisting of small and capital Latin letters. Volume of the word is number of capital letters in the word. Volume of the text is maximum volume of all words in the text. Calculate the volume of the given text. Input Specification: The first line contains one integer number *n* (1<=≤<=*n*<=≤<=200) — length of the text. The second line contains text of single-space separated words *s*1,<=*s*2,<=...,<=*s**i*, consisting only of small and capital Latin letters. Output Specification: Print one integer number — volume of text. Demo Input: ['7\nNonZERO\n', '24\nthis is zero answer text\n', '24\nHarbour Space University\n'] Demo Output: ['5\n', '0\n', '1\n'] Note: In the first example there is only one word, there are 5 capital letters in it. In the second example all of the words contain 0 capital letters.
```python input() a = input().split() ans = -1 for s in a: cur = 0 for c in s: if ord('A') <= ord(c) <= ord('Z'): cur += 1 ans = max(ans, cur) print(ans) ```
3
994
A
Fingerprints
PROGRAMMING
800
[ "implementation" ]
null
null
You are locked in a room with a door that has a keypad with 10 keys corresponding to digits from 0 to 9. To escape from the room, you need to enter a correct code. You also have a sequence of digits. Some keys on the keypad have fingerprints. You believe the correct code is the longest not necessarily contiguous subsequence of the sequence you have that only contains digits with fingerprints on the corresponding keys. Find such code.
The first line contains two integers $n$ and $m$ ($1 \le n, m \le 10$) representing the number of digits in the sequence you have and the number of keys on the keypad that have fingerprints. The next line contains $n$ distinct space-separated integers $x_1, x_2, \ldots, x_n$ ($0 \le x_i \le 9$) representing the sequence. The next line contains $m$ distinct space-separated integers $y_1, y_2, \ldots, y_m$ ($0 \le y_i \le 9$) — the keys with fingerprints.
In a single line print a space-separated sequence of integers representing the code. If the resulting sequence is empty, both printing nothing and printing a single line break is acceptable.
[ "7 3\n3 5 7 1 6 2 8\n1 2 7\n", "4 4\n3 4 1 0\n0 1 7 9\n" ]
[ "7 1 2\n", "1 0\n" ]
In the first example, the only digits with fingerprints are $1$, $2$ and $7$. All three of them appear in the sequence you know, $7$ first, then $1$ and then $2$. Therefore the output is 7 1 2. Note that the order is important, and shall be the same as the order in the original sequence. In the second example digits $0$, $1$, $7$ and $9$ have fingerprints, however only $0$ and $1$ appear in the original sequence. $1$ appears earlier, so the output is 1 0. Again, the order is important.
500
[ { "input": "7 3\n3 5 7 1 6 2 8\n1 2 7", "output": "7 1 2" }, { "input": "4 4\n3 4 1 0\n0 1 7 9", "output": "1 0" }, { "input": "9 4\n9 8 7 6 5 4 3 2 1\n2 4 6 8", "output": "8 6 4 2" }, { "input": "10 5\n3 7 1 2 4 6 9 0 5 8\n4 3 0 7 9", "output": "3 7 4 9 0" }, { "input": "10 10\n1 2 3 4 5 6 7 8 9 0\n4 5 6 7 1 2 3 0 9 8", "output": "1 2 3 4 5 6 7 8 9 0" }, { "input": "1 1\n4\n4", "output": "4" }, { "input": "3 7\n6 3 4\n4 9 0 1 7 8 6", "output": "6 4" }, { "input": "10 1\n9 0 8 1 7 4 6 5 2 3\n0", "output": "0" }, { "input": "5 10\n6 0 3 8 1\n3 1 0 5 4 7 2 8 9 6", "output": "6 0 3 8 1" }, { "input": "8 2\n7 2 9 6 1 0 3 4\n6 3", "output": "6 3" }, { "input": "5 4\n7 0 1 4 9\n0 9 5 3", "output": "0 9" }, { "input": "10 1\n9 6 2 0 1 8 3 4 7 5\n6", "output": "6" }, { "input": "10 2\n7 1 0 2 4 6 5 9 3 8\n3 2", "output": "2 3" }, { "input": "5 9\n3 7 9 2 4\n3 8 4 5 9 6 1 0 2", "output": "3 9 2 4" }, { "input": "10 6\n7 1 2 3 8 0 6 4 5 9\n1 5 8 2 3 6", "output": "1 2 3 8 6 5" }, { "input": "8 2\n7 4 8 9 2 5 6 1\n6 4", "output": "4 6" }, { "input": "10 2\n1 0 3 5 8 9 4 7 6 2\n0 3", "output": "0 3" }, { "input": "7 6\n9 2 8 6 1 3 7\n4 2 0 3 1 8", "output": "2 8 1 3" }, { "input": "1 6\n3\n6 8 2 4 5 3", "output": "3" }, { "input": "1 8\n0\n9 2 4 8 1 5 0 7", "output": "0" }, { "input": "6 9\n7 3 9 4 1 0\n9 1 5 8 0 6 2 7 4", "output": "7 9 4 1 0" }, { "input": "10 2\n4 9 6 8 3 0 1 5 7 2\n0 1", "output": "0 1" }, { "input": "10 5\n5 2 8 0 9 7 6 1 4 3\n9 6 4 1 2", "output": "2 9 6 1 4" }, { "input": "6 3\n8 3 9 2 7 6\n5 4 3", "output": "3" }, { "input": "4 10\n8 3 9 6\n4 9 6 2 7 0 8 1 3 5", "output": "8 3 9 6" }, { "input": "1 2\n1\n1 0", "output": "1" }, { "input": "3 6\n1 2 3\n4 5 6 1 2 3", "output": "1 2 3" }, { "input": "1 2\n2\n1 2", "output": "2" }, { "input": "1 10\n9\n0 1 2 3 4 5 6 7 8 9", "output": "9" } ]
1,586,390,103
2,147,483,647
Python 3
OK
TESTS
31
109
307,200
info = [int(i) for i in input().split()] numbers = [int(i) for i in input().split()] kWp = [int(i) for i in input().split()] code = list() for i in range(info[0]): for k in range(info[1]): if numbers[i] == kWp[k]: code.append(kWp[k]) for i in range(len(code)): print(str(code[i]))
Title: Fingerprints Time Limit: None seconds Memory Limit: None megabytes Problem Description: You are locked in a room with a door that has a keypad with 10 keys corresponding to digits from 0 to 9. To escape from the room, you need to enter a correct code. You also have a sequence of digits. Some keys on the keypad have fingerprints. You believe the correct code is the longest not necessarily contiguous subsequence of the sequence you have that only contains digits with fingerprints on the corresponding keys. Find such code. Input Specification: The first line contains two integers $n$ and $m$ ($1 \le n, m \le 10$) representing the number of digits in the sequence you have and the number of keys on the keypad that have fingerprints. The next line contains $n$ distinct space-separated integers $x_1, x_2, \ldots, x_n$ ($0 \le x_i \le 9$) representing the sequence. The next line contains $m$ distinct space-separated integers $y_1, y_2, \ldots, y_m$ ($0 \le y_i \le 9$) — the keys with fingerprints. Output Specification: In a single line print a space-separated sequence of integers representing the code. If the resulting sequence is empty, both printing nothing and printing a single line break is acceptable. Demo Input: ['7 3\n3 5 7 1 6 2 8\n1 2 7\n', '4 4\n3 4 1 0\n0 1 7 9\n'] Demo Output: ['7 1 2\n', '1 0\n'] Note: In the first example, the only digits with fingerprints are $1$, $2$ and $7$. All three of them appear in the sequence you know, $7$ first, then $1$ and then $2$. Therefore the output is 7 1 2. Note that the order is important, and shall be the same as the order in the original sequence. In the second example digits $0$, $1$, $7$ and $9$ have fingerprints, however only $0$ and $1$ appear in the original sequence. $1$ appears earlier, so the output is 1 0. Again, the order is important.
```python info = [int(i) for i in input().split()] numbers = [int(i) for i in input().split()] kWp = [int(i) for i in input().split()] code = list() for i in range(info[0]): for k in range(info[1]): if numbers[i] == kWp[k]: code.append(kWp[k]) for i in range(len(code)): print(str(code[i])) ```
3
877
A
Alex and broken contest
PROGRAMMING
1,100
[ "implementation", "strings" ]
null
null
One day Alex was creating a contest about his friends, but accidentally deleted it. Fortunately, all the problems were saved, but now he needs to find them among other problems. But there are too many problems, to do it manually. Alex asks you to write a program, which will determine if a problem is from this contest by its name. It is known, that problem is from this contest if and only if its name contains one of Alex's friends' name exactly once. His friends' names are "Danil", "Olya", "Slava", "Ann" and "Nikita". Names are case sensitive.
The only line contains string from lowercase and uppercase letters and "_" symbols of length, not more than 100 — the name of the problem.
Print "YES", if problem is from this contest, and "NO" otherwise.
[ "Alex_and_broken_contest\n", "NikitaAndString\n", "Danil_and_Olya\n" ]
[ "NO", "YES", "NO" ]
none
500
[ { "input": "Alex_and_broken_contest", "output": "NO" }, { "input": "NikitaAndString", "output": "YES" }, { "input": "Danil_and_Olya", "output": "NO" }, { "input": "Slava____and_the_game", "output": "YES" }, { "input": "Olya_and_energy_drinks", "output": "YES" }, { "input": "Danil_and_part_time_job", "output": "YES" }, { "input": "Ann_and_books", "output": "YES" }, { "input": "Olya", "output": "YES" }, { "input": "Nikita", "output": "YES" }, { "input": "Slava", "output": "YES" }, { "input": "Vanya", "output": "NO" }, { "input": "I_dont_know_what_to_write_here", "output": "NO" }, { "input": "danil_and_work", "output": "NO" }, { "input": "Ann", "output": "YES" }, { "input": "Batman_Nananananananan_Batman", "output": "NO" }, { "input": "Olya_Nikita_Ann_Slava_Danil", "output": "NO" }, { "input": "its_me_Mario", "output": "NO" }, { "input": "A", "output": "NO" }, { "input": "Wake_up_Neo", "output": "NO" }, { "input": "Hardest_problem_ever", "output": "NO" }, { "input": "Nikita_Nikita", "output": "NO" }, { "input": "____________________________________________________________________________________________________", "output": "NO" }, { "input": "Nikitb", "output": "NO" }, { "input": "Unn", "output": "NO" }, { "input": "oLya_adn_smth", "output": "NO" }, { "input": "FloorISLava", "output": "NO" }, { "input": "ann", "output": "NO" }, { "input": "aa", "output": "NO" }, { "input": "AAnnnnn", "output": "YES" }, { "input": "AnnAnn", "output": "NO" }, { "input": "Annn", "output": "YES" }, { "input": "Dilzhan", "output": "NO" }, { "input": "Danilaaa", "output": "YES" }, { "input": "AndAnn", "output": "YES" }, { "input": "OlyaAnnAnn", "output": "NO" }, { "input": "DanilDanilOlya", "output": "NO" }, { "input": "DDanil", "output": "YES" }, { "input": "AnnAnnDanil", "output": "NO" }, { "input": "And_Danil", "output": "YES" }, { "input": "abcddddDanil", "output": "YES" }, { "input": "DanilOlyaOlya", "output": "NO" }, { "input": "Nikitaaa", "output": "YES" }, { "input": "aaabbba", "output": "NO" }, { "input": "Ann_Ann_Danil", "output": "NO" }, { "input": "Danil_Danil_Nikita", "output": "NO" }, { "input": "AlexaaaaaaBBBBBOlyaDDDDD", "output": "YES" }, { "input": "IloveDaniland", "output": "YES" }, { "input": "AnAnn", "output": "YES" }, { "input": "Danil_Danil_Olya", "output": "NO" }, { "input": "DanilDanilSlava", "output": "NO" }, { "input": "DanilDanil", "output": "NO" }, { "input": "OlyOlya", "output": "YES" }, { "input": "NikitaNikitb", "output": "YES" }, { "input": "ababaca", "output": "NO" }, { "input": "AnnNikitaNikitaNikitaNikita__good_luck", "output": "NO" } ]
1,540,975,832
2,147,483,647
Python 3
OK
TESTS
55
109
0
d = 'Danil' o = 'Olya' s = 'Slava' a = 'Ann' n = 'Nikita' st = input() m = st.count(d) + st.count(o) + st.count(s) + st.count(a) + st.count(n) if m == 1: print('YES') else: print('NO')
Title: Alex and broken contest Time Limit: None seconds Memory Limit: None megabytes Problem Description: One day Alex was creating a contest about his friends, but accidentally deleted it. Fortunately, all the problems were saved, but now he needs to find them among other problems. But there are too many problems, to do it manually. Alex asks you to write a program, which will determine if a problem is from this contest by its name. It is known, that problem is from this contest if and only if its name contains one of Alex's friends' name exactly once. His friends' names are "Danil", "Olya", "Slava", "Ann" and "Nikita". Names are case sensitive. Input Specification: The only line contains string from lowercase and uppercase letters and "_" symbols of length, not more than 100 — the name of the problem. Output Specification: Print "YES", if problem is from this contest, and "NO" otherwise. Demo Input: ['Alex_and_broken_contest\n', 'NikitaAndString\n', 'Danil_and_Olya\n'] Demo Output: ['NO', 'YES', 'NO'] Note: none
```python d = 'Danil' o = 'Olya' s = 'Slava' a = 'Ann' n = 'Nikita' st = input() m = st.count(d) + st.count(o) + st.count(s) + st.count(a) + st.count(n) if m == 1: print('YES') else: print('NO') ```
3
794
A
Bank Robbery
PROGRAMMING
800
[ "brute force", "implementation" ]
null
null
A robber has attempted to rob a bank but failed to complete his task. However, he had managed to open all the safes. Oleg the bank client loves money (who doesn't), and decides to take advantage of this failed robbery and steal some money from the safes. There are many safes arranged in a line, where the *i*-th safe from the left is called safe *i*. There are *n* banknotes left in all the safes in total. The *i*-th banknote is in safe *x**i*. Oleg is now at safe *a*. There are two security guards, one of which guards the safe *b* such that *b*<=&lt;<=*a*, i.e. the first guard is to the left of Oleg. The other guard guards the safe *c* so that *c*<=&gt;<=*a*, i.e. he is to the right of Oleg. The two guards are very lazy, so they do not move. In every second, Oleg can either take all the banknotes from the current safe or move to any of the neighboring safes. However, he cannot visit any safe that is guarded by security guards at any time, becaues he might be charged for stealing. Determine the maximum amount of banknotes Oleg can gather.
The first line of input contains three space-separated integers, *a*, *b* and *c* (1<=≤<=*b*<=&lt;<=*a*<=&lt;<=*c*<=≤<=109), denoting the positions of Oleg, the first security guard and the second security guard, respectively. The next line of input contains a single integer *n* (1<=≤<=*n*<=≤<=105), denoting the number of banknotes. The next line of input contains *n* space-separated integers *x*1,<=*x*2,<=...,<=*x**n* (1<=≤<=*x**i*<=≤<=109), denoting that the *i*-th banknote is located in the *x**i*-th safe. Note that *x**i* are not guaranteed to be distinct.
Output a single integer: the maximum number of banknotes Oleg can take.
[ "5 3 7\n8\n4 7 5 5 3 6 2 8\n", "6 5 7\n5\n1 5 7 92 3\n" ]
[ "4\n", "0\n" ]
In the first example Oleg can take the banknotes in positions 4, 5, 6 (note that there are 2 banknotes at position 5). Oleg can't take the banknotes in safes 7 and 8 because he can't run into the second security guard. Similarly, Oleg cannot take the banknotes at positions 3 and 2 because he can't run into the first security guard. Thus, he can take a maximum of 4 banknotes. For the second sample, Oleg can't take any banknotes without bumping into any of the security guards.
500
[ { "input": "5 3 7\n8\n4 7 5 5 3 6 2 8", "output": "4" }, { "input": "6 5 7\n5\n1 5 7 92 3", "output": "0" }, { "input": "3 2 4\n1\n3", "output": "1" }, { "input": "5 3 8\n12\n8 3 4 5 7 6 8 3 5 4 7 6", "output": "8" }, { "input": "7 3 10\n5\n3 3 3 3 3", "output": "0" }, { "input": "3 2 5\n4\n1 3 4 5", "output": "2" }, { "input": "3 2 4\n1\n1", "output": "0" }, { "input": "6 4 8\n1\n4", "output": "0" }, { "input": "2 1 3\n1\n3", "output": "0" } ]
1,494,668,869
769
Python 3
OK
TESTS
46
109
8,704,000
a, b, c = map(int, input().split()) n = int(input()) k = list(map(int, input().split())) s = 0 for i in k: if b < i < c: s += 1 print(s)
Title: Bank Robbery Time Limit: None seconds Memory Limit: None megabytes Problem Description: A robber has attempted to rob a bank but failed to complete his task. However, he had managed to open all the safes. Oleg the bank client loves money (who doesn't), and decides to take advantage of this failed robbery and steal some money from the safes. There are many safes arranged in a line, where the *i*-th safe from the left is called safe *i*. There are *n* banknotes left in all the safes in total. The *i*-th banknote is in safe *x**i*. Oleg is now at safe *a*. There are two security guards, one of which guards the safe *b* such that *b*<=&lt;<=*a*, i.e. the first guard is to the left of Oleg. The other guard guards the safe *c* so that *c*<=&gt;<=*a*, i.e. he is to the right of Oleg. The two guards are very lazy, so they do not move. In every second, Oleg can either take all the banknotes from the current safe or move to any of the neighboring safes. However, he cannot visit any safe that is guarded by security guards at any time, becaues he might be charged for stealing. Determine the maximum amount of banknotes Oleg can gather. Input Specification: The first line of input contains three space-separated integers, *a*, *b* and *c* (1<=≤<=*b*<=&lt;<=*a*<=&lt;<=*c*<=≤<=109), denoting the positions of Oleg, the first security guard and the second security guard, respectively. The next line of input contains a single integer *n* (1<=≤<=*n*<=≤<=105), denoting the number of banknotes. The next line of input contains *n* space-separated integers *x*1,<=*x*2,<=...,<=*x**n* (1<=≤<=*x**i*<=≤<=109), denoting that the *i*-th banknote is located in the *x**i*-th safe. Note that *x**i* are not guaranteed to be distinct. Output Specification: Output a single integer: the maximum number of banknotes Oleg can take. Demo Input: ['5 3 7\n8\n4 7 5 5 3 6 2 8\n', '6 5 7\n5\n1 5 7 92 3\n'] Demo Output: ['4\n', '0\n'] Note: In the first example Oleg can take the banknotes in positions 4, 5, 6 (note that there are 2 banknotes at position 5). Oleg can't take the banknotes in safes 7 and 8 because he can't run into the second security guard. Similarly, Oleg cannot take the banknotes at positions 3 and 2 because he can't run into the first security guard. Thus, he can take a maximum of 4 banknotes. For the second sample, Oleg can't take any banknotes without bumping into any of the security guards.
```python a, b, c = map(int, input().split()) n = int(input()) k = list(map(int, input().split())) s = 0 for i in k: if b < i < c: s += 1 print(s) ```
3
381
A
Sereja and Dima
PROGRAMMING
800
[ "greedy", "implementation", "two pointers" ]
null
null
Sereja and Dima play a game. The rules of the game are very simple. The players have *n* cards in a row. Each card contains a number, all numbers on the cards are distinct. The players take turns, Sereja moves first. During his turn a player can take one card: either the leftmost card in a row, or the rightmost one. The game ends when there is no more cards. The player who has the maximum sum of numbers on his cards by the end of the game, wins. Sereja and Dima are being greedy. Each of them chooses the card with the larger number during his move. Inna is a friend of Sereja and Dima. She knows which strategy the guys are using, so she wants to determine the final score, given the initial state of the game. Help her.
The first line contains integer *n* (1<=≤<=*n*<=≤<=1000) — the number of cards on the table. The second line contains space-separated numbers on the cards from left to right. The numbers on the cards are distinct integers from 1 to 1000.
On a single line, print two integers. The first number is the number of Sereja's points at the end of the game, the second number is the number of Dima's points at the end of the game.
[ "4\n4 1 2 10\n", "7\n1 2 3 4 5 6 7\n" ]
[ "12 5\n", "16 12\n" ]
In the first sample Sereja will take cards with numbers 10 and 2, so Sereja's sum is 12. Dima will take cards with numbers 4 and 1, so Dima's sum is 5.
500
[ { "input": "4\n4 1 2 10", "output": "12 5" }, { "input": "7\n1 2 3 4 5 6 7", "output": "16 12" }, { "input": "42\n15 29 37 22 16 5 26 31 6 32 19 3 45 36 33 14 25 20 48 7 42 11 24 28 9 18 8 21 47 17 38 40 44 4 35 1 43 39 41 27 12 13", "output": "613 418" }, { "input": "43\n32 1 15 48 38 26 25 14 20 44 11 30 3 42 49 19 18 46 5 45 10 23 34 9 29 41 2 52 6 17 35 4 50 22 33 51 7 28 47 13 39 37 24", "output": "644 500" }, { "input": "1\n3", "output": "3 0" }, { "input": "45\n553 40 94 225 415 471 126 190 647 394 515 303 189 159 308 6 139 132 326 78 455 75 85 295 135 613 360 614 351 228 578 259 258 591 444 29 33 463 561 174 368 183 140 168 646", "output": "6848 6568" }, { "input": "44\n849 373 112 307 479 608 856 769 526 82 168 143 573 762 115 501 688 36 214 450 396 496 236 309 287 786 397 43 811 141 745 846 350 270 276 677 420 459 403 722 267 54 394 727", "output": "9562 9561" }, { "input": "35\n10 15 18 1 28 16 2 33 6 22 23 4 9 25 35 8 7 26 3 20 30 14 31 19 27 32 11 5 29 24 21 34 13 17 12", "output": "315 315" }, { "input": "17\n580 376 191 496 73 44 520 357 483 149 81 178 514 300 216 598 304", "output": "3238 2222" }, { "input": "30\n334 443 223 424 168 549 189 303 429 559 516 220 459 134 344 346 316 446 209 148 487 526 69 286 102 366 518 280 392 325", "output": "5246 4864" }, { "input": "95\n122 29 188 265 292 287 183 225 222 187 155 256 64 148 173 278 218 136 290 17 31 130 2 87 57 283 255 280 68 166 174 142 102 39 116 206 288 154 26 78 296 172 184 232 77 91 277 8 249 186 94 93 207 251 257 195 101 299 193 124 293 65 58 35 24 302 220 189 252 125 27 284 247 182 141 103 198 97 234 83 281 216 85 180 267 236 109 143 149 239 79 300 191 244 71", "output": "8147 7807" }, { "input": "1\n1", "output": "1 0" } ]
1,689,784,557
2,147,483,647
Python 3
OK
TESTS
34
46
0
n=int(input()) a=list(map(int,input().split())) x,y=0,0 for i in range(n): k=max(a[0],a[-1]) if i%2==0: x+=k else: y+=k a.remove(k) print(x,y)
Title: Sereja and Dima Time Limit: None seconds Memory Limit: None megabytes Problem Description: Sereja and Dima play a game. The rules of the game are very simple. The players have *n* cards in a row. Each card contains a number, all numbers on the cards are distinct. The players take turns, Sereja moves first. During his turn a player can take one card: either the leftmost card in a row, or the rightmost one. The game ends when there is no more cards. The player who has the maximum sum of numbers on his cards by the end of the game, wins. Sereja and Dima are being greedy. Each of them chooses the card with the larger number during his move. Inna is a friend of Sereja and Dima. She knows which strategy the guys are using, so she wants to determine the final score, given the initial state of the game. Help her. Input Specification: The first line contains integer *n* (1<=≤<=*n*<=≤<=1000) — the number of cards on the table. The second line contains space-separated numbers on the cards from left to right. The numbers on the cards are distinct integers from 1 to 1000. Output Specification: On a single line, print two integers. The first number is the number of Sereja's points at the end of the game, the second number is the number of Dima's points at the end of the game. Demo Input: ['4\n4 1 2 10\n', '7\n1 2 3 4 5 6 7\n'] Demo Output: ['12 5\n', '16 12\n'] Note: In the first sample Sereja will take cards with numbers 10 and 2, so Sereja's sum is 12. Dima will take cards with numbers 4 and 1, so Dima's sum is 5.
```python n=int(input()) a=list(map(int,input().split())) x,y=0,0 for i in range(n): k=max(a[0],a[-1]) if i%2==0: x+=k else: y+=k a.remove(k) print(x,y) ```
3
390
A
Inna and Alarm Clock
PROGRAMMING
0
[ "implementation" ]
null
null
Inna loves sleeping very much, so she needs *n* alarm clocks in total to wake up. Let's suppose that Inna's room is a 100<=×<=100 square with the lower left corner at point (0,<=0) and with the upper right corner at point (100,<=100). Then the alarm clocks are points with integer coordinates in this square. The morning has come. All *n* alarm clocks in Inna's room are ringing, so Inna wants to turn them off. For that Inna has come up with an amusing game: - First Inna chooses a type of segments that she will use throughout the game. The segments can be either vertical or horizontal. - Then Inna makes multiple moves. In a single move, Inna can paint a segment of any length on the plane, she chooses its type at the beginning of the game (either vertical or horizontal), then all alarm clocks that are on this segment switch off. The game ends when all the alarm clocks are switched off. Inna is very sleepy, so she wants to get through the alarm clocks as soon as possible. Help her, find the minimum number of moves in the game that she needs to turn off all the alarm clocks!
The first line of the input contains integer *n* (1<=≤<=*n*<=≤<=105) — the number of the alarm clocks. The next *n* lines describe the clocks: the *i*-th line contains two integers *x**i*, *y**i* — the coordinates of the *i*-th alarm clock (0<=≤<=*x**i*,<=*y**i*<=≤<=100). Note that a single point in the room can contain any number of alarm clocks and the alarm clocks can lie on the sides of the square that represents the room.
In a single line print a single integer — the minimum number of segments Inna will have to draw if she acts optimally.
[ "4\n0 0\n0 1\n0 2\n1 0\n", "4\n0 0\n0 1\n1 0\n1 1\n", "4\n1 1\n1 2\n2 3\n3 3\n" ]
[ "2\n", "2\n", "3\n" ]
In the first sample, Inna first chooses type "vertical segments", and then she makes segments with ends at : (0, 0), (0, 2); and, for example, (1, 0), (1, 1). If she paints horizontal segments, she will need at least 3 segments. In the third sample it is important to note that Inna doesn't have the right to change the type of the segments during the game. That's why she will need 3 horizontal or 3 vertical segments to end the game.
500
[ { "input": "4\n0 0\n0 1\n0 2\n1 0", "output": "2" }, { "input": "4\n0 0\n0 1\n1 0\n1 1", "output": "2" }, { "input": "4\n1 1\n1 2\n2 3\n3 3", "output": "3" }, { "input": "1\n0 0", "output": "1" }, { "input": "42\n28 87\n26 16\n59 90\n47 61\n28 83\n36 30\n67 10\n6 95\n9 49\n86 94\n52 24\n74 9\n86 24\n28 51\n25 99\n40 98\n57 33\n18 96\n43 36\n3 79\n4 86\n38 61\n25 61\n6 100\n58 81\n28 19\n64 4\n3 40\n2 56\n41 49\n97 100\n86 34\n42 36\n44 40\n14 85\n21 60\n76 99\n64 47\n69 13\n49 37\n97 37\n3 70", "output": "31" }, { "input": "21\n54 85\n69 37\n42 87\n53 18\n28 22\n13 3\n62 97\n38 91\n67 19\n100 79\n29 18\n48 40\n68 84\n44 20\n37 34\n73 53\n21 5\n20 73\n24 94\n23 52\n7 55", "output": "20" }, { "input": "19\n1 1\n1 2\n1 3\n1 4\n1 5\n1 6\n1 7\n1 8\n1 9\n1 10\n1 11\n1 12\n1 13\n1 14\n1 15\n1 16\n1 17\n1 18\n1 19", "output": "1" }, { "input": "12\n1 1\n1 3\n1 5\n2 1\n2 2\n2 4\n3 1\n3 3\n3 5\n4 1\n4 2\n4 3", "output": "4" } ]
1,544,063,287
2,147,483,647
Python 3
OK
TESTS
19
343
7,884,800
n = int(input()) a = [] b = [] for _ in range(n): xy = list(map(str,input().split())) a.append(xy[0]) b.append(xy[1]) aa = list(set(a)) bb = list(set(b)) if(len(aa) > len(bb)): print(len(bb)) else: print(len(aa))
Title: Inna and Alarm Clock Time Limit: None seconds Memory Limit: None megabytes Problem Description: Inna loves sleeping very much, so she needs *n* alarm clocks in total to wake up. Let's suppose that Inna's room is a 100<=×<=100 square with the lower left corner at point (0,<=0) and with the upper right corner at point (100,<=100). Then the alarm clocks are points with integer coordinates in this square. The morning has come. All *n* alarm clocks in Inna's room are ringing, so Inna wants to turn them off. For that Inna has come up with an amusing game: - First Inna chooses a type of segments that she will use throughout the game. The segments can be either vertical or horizontal. - Then Inna makes multiple moves. In a single move, Inna can paint a segment of any length on the plane, she chooses its type at the beginning of the game (either vertical or horizontal), then all alarm clocks that are on this segment switch off. The game ends when all the alarm clocks are switched off. Inna is very sleepy, so she wants to get through the alarm clocks as soon as possible. Help her, find the minimum number of moves in the game that she needs to turn off all the alarm clocks! Input Specification: The first line of the input contains integer *n* (1<=≤<=*n*<=≤<=105) — the number of the alarm clocks. The next *n* lines describe the clocks: the *i*-th line contains two integers *x**i*, *y**i* — the coordinates of the *i*-th alarm clock (0<=≤<=*x**i*,<=*y**i*<=≤<=100). Note that a single point in the room can contain any number of alarm clocks and the alarm clocks can lie on the sides of the square that represents the room. Output Specification: In a single line print a single integer — the minimum number of segments Inna will have to draw if she acts optimally. Demo Input: ['4\n0 0\n0 1\n0 2\n1 0\n', '4\n0 0\n0 1\n1 0\n1 1\n', '4\n1 1\n1 2\n2 3\n3 3\n'] Demo Output: ['2\n', '2\n', '3\n'] Note: In the first sample, Inna first chooses type "vertical segments", and then she makes segments with ends at : (0, 0), (0, 2); and, for example, (1, 0), (1, 1). If she paints horizontal segments, she will need at least 3 segments. In the third sample it is important to note that Inna doesn't have the right to change the type of the segments during the game. That's why she will need 3 horizontal or 3 vertical segments to end the game.
```python n = int(input()) a = [] b = [] for _ in range(n): xy = list(map(str,input().split())) a.append(xy[0]) b.append(xy[1]) aa = list(set(a)) bb = list(set(b)) if(len(aa) > len(bb)): print(len(bb)) else: print(len(aa)) ```
3
234
A
Lefthanders and Righthanders
PROGRAMMING
1,200
[ "implementation" ]
null
null
One fine October day a mathematics teacher Vasily Petrov went to a class and saw there *n* pupils who sat at the desks, two people at each desk. Vasily quickly realized that number *n* is even. Like all true mathematicians, Vasily has all students numbered from 1 to *n*. But Vasily Petrov did not like the way the children were seated at the desks. According to him, the students whose numbers differ by 1, can not sit together, as they talk to each other all the time, distract others and misbehave. On the other hand, if a righthanded student sits at the left end of the desk and a lefthanded student sits at the right end of the desk, they hit elbows all the time and distract each other. In other cases, the students who sit at the same desk, do not interfere with each other. Vasily knows very well which students are lefthanders and which ones are righthanders, and he asks you to come up with any order that meets these two uncomplicated conditions (students do not talk to each other and do not bump their elbows). It is guaranteed that the input is such that at least one way to seat the students always exists.
The first input line contains a single even integer *n* (4<=≤<=*n*<=≤<=100) — the number of students in the class. The second line contains exactly *n* capital English letters "L" and "R". If the *i*-th letter at the second line equals "L", then the student number *i* is a lefthander, otherwise he is a righthander.
Print integer pairs, one pair per line. In the *i*-th line print the numbers of students that will sit at the *i*-th desk. The first number in the pair stands for the student who is sitting to the left, and the second number stands for the student who is sitting to the right. Separate the numbers in the pairs by spaces. If there are multiple solutions, print any of them.
[ "6\nLLRLLL\n", "4\nRRLL\n" ]
[ "1 4\n2 5\n6 3\n", "3 1\n4 2\n" ]
none
0
[ { "input": "6\nLLRLLL", "output": "1 4\n2 5\n6 3" }, { "input": "4\nRRLL", "output": "3 1\n4 2" }, { "input": "4\nLLRR", "output": "1 3\n2 4" }, { "input": "6\nRLLRRL", "output": "1 4\n2 5\n3 6" }, { "input": "8\nLRLRLLLR", "output": "1 5\n6 2\n3 7\n4 8" }, { "input": "10\nRLLRLRRRLL", "output": "1 6\n2 7\n3 8\n9 4\n5 10" }, { "input": "12\nLRRRRRLRRRRL", "output": "1 7\n2 8\n3 9\n4 10\n5 11\n12 6" }, { "input": "14\nRLLRLLLLRLLLRL", "output": "8 1\n2 9\n3 10\n11 4\n5 12\n6 13\n7 14" }, { "input": "16\nLLLRRRLRRLLRRLLL", "output": "1 9\n2 10\n3 11\n4 12\n5 13\n14 6\n7 15\n16 8" }, { "input": "18\nRRRLLLLRRRLRLRLLRL", "output": "1 10\n11 2\n3 12\n4 13\n5 14\n6 15\n7 16\n8 17\n18 9" }, { "input": "20\nRLRLLRLRRLLRRRRRRLRL", "output": "11 1\n2 12\n3 13\n4 14\n5 15\n6 16\n7 17\n18 8\n9 19\n10 20" }, { "input": "22\nRLLLRLLLRRLRRRLRLLLLLL", "output": "1 12\n2 13\n3 14\n4 15\n5 16\n6 17\n7 18\n8 19\n20 9\n21 10\n11 22" }, { "input": "24\nLRRRLRLLRLRRRRLLLLRRLRLR", "output": "1 13\n2 14\n15 3\n16 4\n5 17\n18 6\n7 19\n8 20\n21 9\n10 22\n23 11\n12 24" }, { "input": "26\nRLRRLLRRLLRLRRLLRLLRRLRLRR", "output": "1 14\n2 15\n16 3\n4 17\n5 18\n6 19\n7 20\n8 21\n9 22\n10 23\n24 11\n12 25\n13 26" }, { "input": "28\nLLLRRRRRLRRLRRRLRLRLRRLRLRRL", "output": "1 15\n2 16\n3 17\n18 4\n5 19\n20 6\n7 21\n8 22\n9 23\n10 24\n25 11\n12 26\n13 27\n28 14" }, { "input": "30\nLRLLRLRRLLRLRLLRRRRRLRLRLRLLLL", "output": "1 16\n2 17\n3 18\n4 19\n5 20\n6 21\n7 22\n23 8\n9 24\n10 25\n11 26\n12 27\n28 13\n14 29\n15 30" }, { "input": "32\nRLRLLRRLLRRLRLLRLRLRLLRLRRRLLRRR", "output": "17 1\n2 18\n19 3\n4 20\n5 21\n22 6\n7 23\n8 24\n9 25\n10 26\n11 27\n12 28\n29 13\n14 30\n15 31\n16 32" }, { "input": "34\nLRRLRLRLLRRRRLLRLRRLRRLRLRRLRRRLLR", "output": "1 18\n2 19\n20 3\n4 21\n5 22\n6 23\n7 24\n8 25\n9 26\n10 27\n28 11\n12 29\n13 30\n14 31\n15 32\n33 16\n17 34" }, { "input": "36\nRRLLLRRRLLLRRLLLRRLLRLLRLRLLRLRLRLLL", "output": "19 1\n20 2\n3 21\n4 22\n5 23\n6 24\n25 7\n8 26\n9 27\n10 28\n11 29\n30 12\n13 31\n14 32\n15 33\n16 34\n35 17\n36 18" }, { "input": "38\nLLRRRLLRRRLRRLRLRRLRRLRLRLLRRRRLLLLRLL", "output": "1 20\n2 21\n22 3\n4 23\n24 5\n6 25\n7 26\n27 8\n9 28\n10 29\n11 30\n12 31\n32 13\n14 33\n34 15\n16 35\n17 36\n37 18\n19 38" }, { "input": "40\nLRRRRRLRLLRRRLLRRLRLLRLRRLRRLLLRRLRRRLLL", "output": "1 21\n2 22\n23 3\n4 24\n5 25\n26 6\n7 27\n8 28\n9 29\n10 30\n31 11\n12 32\n13 33\n14 34\n15 35\n16 36\n17 37\n18 38\n39 19\n20 40" }, { "input": "42\nRLRRLLLLLLLRRRLRLLLRRRLRLLLRLRLRLLLRLRLRRR", "output": "1 22\n2 23\n3 24\n25 4\n5 26\n6 27\n7 28\n8 29\n9 30\n10 31\n11 32\n33 12\n34 13\n35 14\n15 36\n37 16\n17 38\n18 39\n19 40\n20 41\n21 42" }, { "input": "44\nLLLLRRLLRRLLRRLRLLRRRLRLRLLRLRLRRLLRLRRLLLRR", "output": "1 23\n2 24\n3 25\n4 26\n27 5\n6 28\n7 29\n8 30\n31 9\n10 32\n11 33\n12 34\n35 13\n14 36\n15 37\n16 38\n17 39\n18 40\n41 19\n42 20\n21 43\n22 44" }, { "input": "46\nRRRLLLLRRLRLRRRRRLRLLRLRRLRLLLLLLLLRRLRLRLRLLL", "output": "1 24\n2 25\n26 3\n4 27\n5 28\n6 29\n7 30\n31 8\n32 9\n10 33\n34 11\n12 35\n13 36\n14 37\n38 15\n16 39\n40 17\n18 41\n42 19\n20 43\n21 44\n45 22\n23 46" }, { "input": "48\nLLLLRRLRRRRLRRRLRLLLLLRRLLRLLRLLRRLRRLLRLRLRRRRL", "output": "1 25\n2 26\n3 27\n4 28\n29 5\n6 30\n7 31\n32 8\n9 33\n10 34\n35 11\n12 36\n13 37\n38 14\n39 15\n16 40\n41 17\n18 42\n19 43\n20 44\n21 45\n22 46\n23 47\n48 24" }, { "input": "50\nRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR", "output": "1 26\n2 27\n3 28\n4 29\n5 30\n6 31\n7 32\n8 33\n9 34\n10 35\n11 36\n12 37\n13 38\n14 39\n15 40\n16 41\n17 42\n18 43\n19 44\n20 45\n21 46\n22 47\n23 48\n24 49\n25 50" }, { "input": "52\nLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL", "output": "1 27\n2 28\n3 29\n4 30\n5 31\n6 32\n7 33\n8 34\n9 35\n10 36\n11 37\n12 38\n13 39\n14 40\n15 41\n16 42\n17 43\n18 44\n19 45\n20 46\n21 47\n22 48\n23 49\n24 50\n25 51\n26 52" }, { "input": "54\nRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR", "output": "1 28\n2 29\n3 30\n4 31\n5 32\n6 33\n7 34\n8 35\n9 36\n10 37\n11 38\n12 39\n13 40\n14 41\n15 42\n16 43\n17 44\n18 45\n19 46\n20 47\n21 48\n22 49\n23 50\n24 51\n25 52\n26 53\n27 54" }, { "input": "56\nLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL", "output": "1 29\n2 30\n3 31\n4 32\n5 33\n6 34\n7 35\n8 36\n9 37\n10 38\n11 39\n12 40\n13 41\n14 42\n15 43\n16 44\n17 45\n18 46\n19 47\n20 48\n21 49\n22 50\n23 51\n24 52\n25 53\n26 54\n27 55\n28 56" }, { "input": "58\nRRRLLLRLLLLRRLRRRLLRLLRLRLLRLRRRRLLLLLLRLRRLRLRRRLRLRRLRRL", "output": "1 30\n2 31\n3 32\n4 33\n5 34\n6 35\n36 7\n8 37\n9 38\n10 39\n11 40\n41 12\n13 42\n14 43\n44 15\n16 45\n46 17\n18 47\n19 48\n20 49\n21 50\n22 51\n52 23\n24 53\n25 54\n26 55\n27 56\n28 57\n29 58" }, { "input": "60\nRLLLLRRLLRRRLLLLRRRRRLRRRLRRRLLLRLLLRLRRRLRLLLRLLRRLLRRRRRLL", "output": "31 1\n2 32\n3 33\n4 34\n5 35\n36 6\n7 37\n8 38\n9 39\n10 40\n11 41\n42 12\n13 43\n14 44\n15 45\n16 46\n17 47\n48 18\n49 19\n20 50\n21 51\n22 52\n53 23\n24 54\n25 55\n26 56\n27 57\n28 58\n59 29\n30 60" }, { "input": "62\nLRRLRLRLLLLRRLLLLRRRLRLLLLRRRLLLLLLRRRLLLLRRLRRLRLLLLLLLLRRLRR", "output": "1 32\n33 2\n34 3\n4 35\n5 36\n6 37\n7 38\n8 39\n9 40\n10 41\n11 42\n12 43\n13 44\n14 45\n15 46\n16 47\n17 48\n18 49\n50 19\n51 20\n21 52\n53 22\n23 54\n24 55\n25 56\n26 57\n27 58\n28 59\n60 29\n30 61\n31 62" }, { "input": "64\nRLLLLRRRLRLLRRRRLRLLLRRRLLLRRRLLRLLRLRLRRRLLRRRRLRLRRRLLLLRRLLLL", "output": "1 33\n2 34\n3 35\n4 36\n5 37\n6 38\n39 7\n8 40\n9 41\n10 42\n11 43\n12 44\n13 45\n14 46\n15 47\n16 48\n17 49\n18 50\n19 51\n20 52\n21 53\n22 54\n55 23\n56 24\n25 57\n26 58\n27 59\n28 60\n61 29\n62 30\n31 63\n32 64" }, { "input": "66\nLLRRRLLRLRLLRRRRRRRLLLLRRLLLLLLRLLLRLLLLLLRRRLRRLLRRRRRLRLLRLLLLRR", "output": "1 34\n2 35\n3 36\n37 4\n38 5\n6 39\n7 40\n41 8\n9 42\n10 43\n11 44\n12 45\n46 13\n14 47\n15 48\n49 16\n50 17\n18 51\n19 52\n20 53\n21 54\n22 55\n23 56\n24 57\n58 25\n26 59\n27 60\n28 61\n29 62\n30 63\n31 64\n32 65\n33 66" }, { "input": "68\nRRLRLRLLRLRLRRRRRRLRRRLLLLRLLRLRLRLRRRRLRLRLLRRRRLRRLLRLRRLLRLRRLRRL", "output": "35 1\n2 36\n3 37\n4 38\n5 39\n40 6\n7 41\n8 42\n9 43\n10 44\n45 11\n12 46\n13 47\n14 48\n15 49\n50 16\n17 51\n18 52\n19 53\n54 20\n21 55\n56 22\n23 57\n24 58\n25 59\n26 60\n27 61\n28 62\n29 63\n30 64\n31 65\n32 66\n33 67\n68 34" }, { "input": "70\nRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR", "output": "1 36\n2 37\n3 38\n4 39\n5 40\n6 41\n7 42\n8 43\n9 44\n10 45\n11 46\n12 47\n13 48\n14 49\n15 50\n16 51\n17 52\n18 53\n19 54\n20 55\n21 56\n22 57\n23 58\n24 59\n25 60\n26 61\n27 62\n28 63\n29 64\n30 65\n31 66\n32 67\n33 68\n34 69\n35 70" }, { "input": "72\nRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR", "output": "1 37\n2 38\n3 39\n4 40\n5 41\n6 42\n7 43\n8 44\n9 45\n10 46\n11 47\n12 48\n13 49\n14 50\n15 51\n16 52\n17 53\n18 54\n19 55\n20 56\n21 57\n22 58\n23 59\n24 60\n25 61\n26 62\n27 63\n28 64\n29 65\n30 66\n31 67\n32 68\n33 69\n34 70\n35 71\n36 72" }, { "input": "74\nRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR", "output": "1 38\n2 39\n3 40\n4 41\n5 42\n6 43\n7 44\n8 45\n9 46\n10 47\n11 48\n12 49\n13 50\n14 51\n15 52\n16 53\n17 54\n18 55\n19 56\n20 57\n21 58\n22 59\n23 60\n24 61\n25 62\n26 63\n27 64\n28 65\n29 66\n30 67\n31 68\n32 69\n33 70\n34 71\n35 72\n36 73\n37 74" }, { "input": "76\nRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR", "output": "1 39\n2 40\n3 41\n4 42\n5 43\n6 44\n7 45\n8 46\n9 47\n10 48\n11 49\n12 50\n13 51\n14 52\n15 53\n16 54\n17 55\n18 56\n19 57\n20 58\n21 59\n22 60\n23 61\n24 62\n25 63\n26 64\n27 65\n28 66\n29 67\n30 68\n31 69\n32 70\n33 71\n34 72\n35 73\n36 74\n37 75\n38 76" }, { "input": "78\nRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR", "output": "1 40\n2 41\n3 42\n4 43\n5 44\n6 45\n7 46\n8 47\n9 48\n10 49\n11 50\n12 51\n13 52\n14 53\n15 54\n16 55\n17 56\n18 57\n19 58\n20 59\n21 60\n22 61\n23 62\n24 63\n25 64\n26 65\n27 66\n28 67\n29 68\n30 69\n31 70\n32 71\n33 72\n34 73\n35 74\n36 75\n37 76\n38 77\n39 78" }, { "input": "80\nLRLRRRRLRRRRLLLLRLLRLRLLRRLRLLLRRLLLLRLLLRLRLLRRRLRRRLRLRRRRRLRLLRLLRRLLLRLRRRLL", "output": "1 41\n2 42\n3 43\n4 44\n45 5\n46 6\n7 47\n8 48\n9 49\n50 10\n11 51\n12 52\n13 53\n14 54\n15 55\n16 56\n17 57\n18 58\n19 59\n20 60\n21 61\n62 22\n23 63\n24 64\n65 25\n26 66\n27 67\n68 28\n29 69\n30 70\n31 71\n72 32\n73 33\n34 74\n35 75\n36 76\n37 77\n38 78\n39 79\n40 80" }, { "input": "82\nRLRRLLRLRLRLLLRLLLRRLLRRLRRRRLLRLLLLRRRRRLLLRRRLLLLRLRRLRRRLRLLLLRRRLRLRLLLRLLLLLR", "output": "42 1\n2 43\n44 3\n4 45\n5 46\n6 47\n48 7\n8 49\n50 9\n10 51\n11 52\n12 53\n13 54\n14 55\n56 15\n16 57\n17 58\n18 59\n60 19\n20 61\n21 62\n22 63\n64 23\n65 24\n25 66\n26 67\n27 68\n69 28\n29 70\n30 71\n31 72\n73 32\n33 74\n34 75\n35 76\n36 77\n78 37\n79 38\n80 39\n81 40\n41 82" }, { "input": "84\nLRLRRRRRRLLLRLRLLLLLRRLRLRLRRRLLRLLLRLRLLLRRRLRLRRLRLRLLLLLLLLRRRRRRLLLRRLRLRLLLRLRR", "output": "1 43\n2 44\n3 45\n46 4\n5 47\n48 6\n7 49\n8 50\n51 9\n10 52\n11 53\n12 54\n55 13\n14 56\n57 15\n16 58\n17 59\n18 60\n19 61\n20 62\n21 63\n22 64\n23 65\n24 66\n25 67\n26 68\n27 69\n70 28\n71 29\n30 72\n31 73\n32 74\n33 75\n34 76\n35 77\n36 78\n79 37\n38 80\n39 81\n40 82\n41 83\n42 84" }, { "input": "86\nRRRLLLRLLRLLRLRLRLLLRLRLRRLLRLLLRLLLLLLRRRLRLLRLLLRRRLRLLLLRLLRLRRLLRLLLRRRLLRLRLLRLLR", "output": "1 44\n45 2\n46 3\n4 47\n5 48\n6 49\n50 7\n8 51\n9 52\n10 53\n11 54\n12 55\n56 13\n14 57\n58 15\n16 59\n17 60\n18 61\n19 62\n20 63\n64 21\n22 65\n23 66\n24 67\n68 25\n26 69\n27 70\n28 71\n72 29\n30 73\n31 74\n32 75\n76 33\n34 77\n35 78\n36 79\n37 80\n38 81\n39 82\n40 83\n84 41\n85 42\n43 86" }, { "input": "88\nLLRLRLRLLLLRRRRRRLRRLLLLLRRLRRLLLLLRLRLRLLLLLRLRLRRLRLRRLRLLRRLRLLLRLLLLRRLLRRLRLRLRRLRR", "output": "1 45\n2 46\n47 3\n4 48\n49 5\n6 50\n7 51\n8 52\n9 53\n10 54\n11 55\n12 56\n57 13\n14 58\n59 15\n60 16\n17 61\n18 62\n63 19\n20 64\n21 65\n22 66\n23 67\n24 68\n25 69\n70 26\n71 27\n28 72\n29 73\n30 74\n31 75\n32 76\n33 77\n34 78\n35 79\n36 80\n37 81\n38 82\n39 83\n40 84\n41 85\n42 86\n43 87\n44 88" }, { "input": "90\nLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL", "output": "1 46\n2 47\n3 48\n4 49\n5 50\n6 51\n7 52\n8 53\n9 54\n10 55\n11 56\n12 57\n13 58\n14 59\n15 60\n16 61\n17 62\n18 63\n19 64\n20 65\n21 66\n22 67\n23 68\n24 69\n25 70\n26 71\n27 72\n28 73\n29 74\n30 75\n31 76\n32 77\n33 78\n34 79\n35 80\n36 81\n37 82\n38 83\n39 84\n40 85\n41 86\n42 87\n43 88\n44 89\n45 90" }, { "input": "92\nLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL", "output": "1 47\n2 48\n3 49\n4 50\n5 51\n6 52\n7 53\n8 54\n9 55\n10 56\n11 57\n12 58\n13 59\n14 60\n15 61\n16 62\n17 63\n18 64\n19 65\n20 66\n21 67\n22 68\n23 69\n24 70\n25 71\n26 72\n27 73\n28 74\n29 75\n30 76\n31 77\n32 78\n33 79\n34 80\n35 81\n36 82\n37 83\n38 84\n39 85\n40 86\n41 87\n42 88\n43 89\n44 90\n45 91\n46 92" }, { "input": "94\nLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL", "output": "1 48\n2 49\n3 50\n4 51\n5 52\n6 53\n7 54\n8 55\n9 56\n10 57\n11 58\n12 59\n13 60\n14 61\n15 62\n16 63\n17 64\n18 65\n19 66\n20 67\n21 68\n22 69\n23 70\n24 71\n25 72\n26 73\n27 74\n28 75\n29 76\n30 77\n31 78\n32 79\n33 80\n34 81\n35 82\n36 83\n37 84\n38 85\n39 86\n40 87\n41 88\n42 89\n43 90\n44 91\n45 92\n46 93\n47 94" }, { "input": "96\nLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL", "output": "1 49\n2 50\n3 51\n4 52\n5 53\n6 54\n7 55\n8 56\n9 57\n10 58\n11 59\n12 60\n13 61\n14 62\n15 63\n16 64\n17 65\n18 66\n19 67\n20 68\n21 69\n22 70\n23 71\n24 72\n25 73\n26 74\n27 75\n28 76\n29 77\n30 78\n31 79\n32 80\n33 81\n34 82\n35 83\n36 84\n37 85\n38 86\n39 87\n40 88\n41 89\n42 90\n43 91\n44 92\n45 93\n46 94\n47 95\n48 96" }, { "input": "98\nLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL", "output": "1 50\n2 51\n3 52\n4 53\n5 54\n6 55\n7 56\n8 57\n9 58\n10 59\n11 60\n12 61\n13 62\n14 63\n15 64\n16 65\n17 66\n18 67\n19 68\n20 69\n21 70\n22 71\n23 72\n24 73\n25 74\n26 75\n27 76\n28 77\n29 78\n30 79\n31 80\n32 81\n33 82\n34 83\n35 84\n36 85\n37 86\n38 87\n39 88\n40 89\n41 90\n42 91\n43 92\n44 93\n45 94\n46 95\n47 96\n48 97\n49 98" }, { "input": "100\nRLRRRRLLLLRRRRLRRRRRRRRLRLRRLLRRRRRRRRLRRRRLLLLRRRRLRRLRLRRRLLRRLRRLLLRLRRLLLLLLRLRLRLRRLRLRLRRRLLLR", "output": "1 51\n2 52\n3 53\n4 54\n55 5\n6 56\n7 57\n8 58\n9 59\n10 60\n61 11\n62 12\n13 63\n14 64\n15 65\n16 66\n17 67\n68 18\n69 19\n70 20\n21 71\n72 22\n23 73\n24 74\n75 25\n26 76\n77 27\n78 28\n29 79\n30 80\n31 81\n82 32\n33 83\n84 34\n35 85\n86 36\n37 87\n38 88\n39 89\n40 90\n91 41\n42 92\n93 43\n44 94\n45 95\n46 96\n47 97\n98 48\n99 49\n50 100" }, { "input": "100\nLRLLLLRLLLLRRRRRLRRRRLRRLRRLRLLRRLRRRRLLRRRLLLRLLLRRRRLLRLRLRRLRLLRRLLRRLRRLRRRRRLRRLRLRLRLLLLLLLLRL", "output": "1 51\n2 52\n3 53\n4 54\n5 55\n6 56\n7 57\n8 58\n9 59\n10 60\n11 61\n12 62\n63 13\n14 64\n65 15\n66 16\n17 67\n18 68\n69 19\n70 20\n21 71\n22 72\n73 23\n24 74\n25 75\n76 26\n27 77\n28 78\n29 79\n30 80\n31 81\n82 32\n33 83\n34 84\n85 35\n36 86\n87 37\n38 88\n39 89\n40 90\n91 41\n92 42\n93 43\n44 94\n45 95\n46 96\n97 47\n48 98\n49 99\n50 100" }, { "input": "100\nLLLRRLLRLRLLLRLLLRLRLLRRRLRRLLLRLRLRRLLRLRRRLLLRRLLRLLRRLLRRRRRLRLRRLRLRRLRLRRLLRLRLLRLLLRLLRLLLLRLL", "output": "1 51\n2 52\n3 53\n54 4\n5 55\n6 56\n7 57\n58 8\n9 59\n10 60\n11 61\n12 62\n13 63\n64 14\n15 65\n16 66\n17 67\n18 68\n19 69\n20 70\n21 71\n22 72\n23 73\n74 24\n25 75\n26 76\n27 77\n28 78\n29 79\n30 80\n31 81\n82 32\n33 83\n84 34\n35 85\n36 86\n87 37\n38 88\n39 89\n40 90\n41 91\n92 42\n43 93\n94 44\n45 95\n46 96\n47 97\n48 98\n99 49\n50 100" }, { "input": "100\nRLLLLRRLLLLRRRRLLRLRRRLLLRLLRLLLLLRRLLLLLLRRLRRRRRLRLLRLRRRLLLRLRLRLLLRRRLLLLLRRRRRLRRLLLLRLLLRRLLLL", "output": "51 1\n2 52\n3 53\n4 54\n5 55\n56 6\n7 57\n8 58\n9 59\n10 60\n11 61\n62 12\n13 63\n64 14\n15 65\n16 66\n17 67\n68 18\n19 69\n70 20\n21 71\n22 72\n23 73\n24 74\n25 75\n76 26\n27 77\n28 78\n29 79\n30 80\n31 81\n32 82\n33 83\n34 84\n35 85\n36 86\n37 87\n38 88\n39 89\n40 90\n41 91\n42 92\n93 43\n94 44\n45 95\n46 96\n97 47\n98 48\n99 49\n100 50" }, { "input": "100\nRLRRLRLRRLRLLRLLRRRLRRLLLLLRLRLRRRRRRRLLRRRLLRLRLLLRRRLLRRRLLRLRLLLLRRLRLLRLLRLLLLRRLRLRRLRLLLLRLRRR", "output": "51 1\n2 52\n3 53\n4 54\n5 55\n56 6\n7 57\n8 58\n9 59\n10 60\n61 11\n12 62\n13 63\n14 64\n15 65\n16 66\n67 17\n68 18\n19 69\n20 70\n71 21\n22 72\n23 73\n24 74\n25 75\n26 76\n27 77\n28 78\n29 79\n80 30\n31 81\n82 32\n33 83\n34 84\n85 35\n36 86\n87 37\n38 88\n39 89\n40 90\n41 91\n92 42\n93 43\n44 94\n45 95\n46 96\n47 97\n48 98\n49 99\n50 100" }, { "input": "100\nLRRLRLRRRRRRLRRLRRLLLLLLRRLLRRLLRLLLLLLRRRLLRLRRRLLRLLRRLRRRLLRLRLLRRLRRRLLLRRRRLLRRRLLLRRRRRLLLLLLR", "output": "1 51\n2 52\n53 3\n4 54\n5 55\n6 56\n57 7\n8 58\n9 59\n10 60\n61 11\n62 12\n13 63\n64 14\n15 65\n16 66\n67 17\n18 68\n19 69\n20 70\n21 71\n22 72\n23 73\n24 74\n75 25\n76 26\n27 77\n28 78\n29 79\n30 80\n31 81\n32 82\n33 83\n34 84\n35 85\n36 86\n37 87\n38 88\n39 89\n40 90\n41 91\n42 92\n43 93\n44 94\n95 45\n46 96\n97 47\n98 48\n99 49\n50 100" }, { "input": "100\nRRLRRLRLRLRRRRLLRRLLRLRRLLRRRLLRLRRLRLRRLLLRRLLRRRRRRLLLRRRLLRRLLLLLLRLLLLLLRLLLRRRLRLLRRRRRLLRLLRRR", "output": "1 51\n2 52\n3 53\n54 4\n55 5\n6 56\n7 57\n8 58\n9 59\n10 60\n61 11\n12 62\n13 63\n64 14\n15 65\n16 66\n67 17\n68 18\n19 69\n20 70\n71 21\n22 72\n73 23\n74 24\n25 75\n26 76\n27 77\n78 28\n79 29\n30 80\n31 81\n32 82\n33 83\n84 34\n35 85\n36 86\n87 37\n38 88\n39 89\n40 90\n41 91\n42 92\n43 93\n94 44\n45 95\n46 96\n47 97\n48 98\n49 99\n50 100" }, { "input": "100\nRRLLLRLRRLRLLRRLRRRLLRRRLRRLLLLLLLLLRRRLLRLRRLRRLRRLRRLRLLLLRLLRRRLLLLRLRRRLLRRRRLRRLLRRRRLRRRLRLLLR", "output": "1 51\n52 2\n3 53\n4 54\n5 55\n6 56\n7 57\n58 8\n59 9\n10 60\n11 61\n12 62\n13 63\n14 64\n15 65\n16 66\n67 17\n68 18\n69 19\n20 70\n21 71\n72 22\n23 73\n24 74\n25 75\n76 26\n77 27\n28 78\n29 79\n30 80\n31 81\n32 82\n33 83\n34 84\n35 85\n36 86\n37 87\n38 88\n39 89\n40 90\n41 91\n42 92\n43 93\n44 94\n95 45\n46 96\n97 47\n98 48\n49 99\n50 100" }, { "input": "100\nLLLLLRRLRRRRRRRLLRRRRRLRRLRLRLLRLRRLLLRRRRLLRRLRLLRLLLRLRLLRRRRRRRRRLRLLLRLRLLLLLRLRRRRLRLLRLRLRLRRL", "output": "1 51\n2 52\n3 53\n4 54\n5 55\n56 6\n7 57\n8 58\n59 9\n10 60\n11 61\n12 62\n13 63\n14 64\n15 65\n16 66\n17 67\n18 68\n69 19\n20 70\n71 21\n72 22\n23 73\n24 74\n75 25\n26 76\n77 27\n28 78\n79 29\n30 80\n31 81\n32 82\n33 83\n34 84\n35 85\n36 86\n37 87\n38 88\n39 89\n90 40\n91 41\n42 92\n43 93\n44 94\n95 45\n46 96\n47 97\n48 98\n49 99\n50 100" }, { "input": "100\nLLRRRLLLRLLLLRLRLRLRRRLLLRRRLRLLRLLLRRRRRLRRLRRLRRRLRRLRRLLLRLRLLRRRRLRLRRRRRLRRLRLLRRRRLLLRRRRRLLLL", "output": "1 51\n2 52\n3 53\n4 54\n55 5\n6 56\n7 57\n8 58\n59 9\n10 60\n11 61\n12 62\n13 63\n64 14\n15 65\n16 66\n17 67\n18 68\n19 69\n70 20\n21 71\n72 22\n23 73\n24 74\n25 75\n26 76\n27 77\n78 28\n29 79\n30 80\n31 81\n32 82\n83 33\n34 84\n35 85\n36 86\n37 87\n38 88\n89 39\n90 40\n91 41\n42 92\n43 93\n44 94\n45 95\n46 96\n97 47\n48 98\n99 49\n100 50" } ]
1,648,645,941
2,147,483,647
Python 3
OK
TESTS
60
46
0
def solve() : s='' for i in range(n//2): if st[i]=='R' and st[n//2+i]=='L': s+=f'{n//2+i+1} {i+1}\n' else: s+=f'{i+1} {n//2+i+1}\n' s.strip() with open('output.txt','w') as f : f.write(s) return from sys import stdin input = stdin.readline with open('input.txt','r') as f : args=f.readlines() n=int(args[0]) st=args[1].strip() print(solve()) ''' t=int(input()) for i in range(t) : print(solve()) n=int(input()) x=input().strip() n,m= [int(x) for x in input().split()] n=int(input()) arr=[int(x) for x in input().split()] n,m= [int(x) for x in input().split()] arr=[] for i in range(n): arr.append([int(x) for x in input().split()]) n,m= [int(x) for x in input().split()] arr=[] for i in range(n): arr.append([x for x in input().strip()]) n=int(input()) arr=[] for i in range(n): arr.append([int(x) for x in input().split()]) '''
Title: Lefthanders and Righthanders Time Limit: None seconds Memory Limit: None megabytes Problem Description: One fine October day a mathematics teacher Vasily Petrov went to a class and saw there *n* pupils who sat at the desks, two people at each desk. Vasily quickly realized that number *n* is even. Like all true mathematicians, Vasily has all students numbered from 1 to *n*. But Vasily Petrov did not like the way the children were seated at the desks. According to him, the students whose numbers differ by 1, can not sit together, as they talk to each other all the time, distract others and misbehave. On the other hand, if a righthanded student sits at the left end of the desk and a lefthanded student sits at the right end of the desk, they hit elbows all the time and distract each other. In other cases, the students who sit at the same desk, do not interfere with each other. Vasily knows very well which students are lefthanders and which ones are righthanders, and he asks you to come up with any order that meets these two uncomplicated conditions (students do not talk to each other and do not bump their elbows). It is guaranteed that the input is such that at least one way to seat the students always exists. Input Specification: The first input line contains a single even integer *n* (4<=≤<=*n*<=≤<=100) — the number of students in the class. The second line contains exactly *n* capital English letters "L" and "R". If the *i*-th letter at the second line equals "L", then the student number *i* is a lefthander, otherwise he is a righthander. Output Specification: Print integer pairs, one pair per line. In the *i*-th line print the numbers of students that will sit at the *i*-th desk. The first number in the pair stands for the student who is sitting to the left, and the second number stands for the student who is sitting to the right. Separate the numbers in the pairs by spaces. If there are multiple solutions, print any of them. Demo Input: ['6\nLLRLLL\n', '4\nRRLL\n'] Demo Output: ['1 4\n2 5\n6 3\n', '3 1\n4 2\n'] Note: none
```python def solve() : s='' for i in range(n//2): if st[i]=='R' and st[n//2+i]=='L': s+=f'{n//2+i+1} {i+1}\n' else: s+=f'{i+1} {n//2+i+1}\n' s.strip() with open('output.txt','w') as f : f.write(s) return from sys import stdin input = stdin.readline with open('input.txt','r') as f : args=f.readlines() n=int(args[0]) st=args[1].strip() print(solve()) ''' t=int(input()) for i in range(t) : print(solve()) n=int(input()) x=input().strip() n,m= [int(x) for x in input().split()] n=int(input()) arr=[int(x) for x in input().split()] n,m= [int(x) for x in input().split()] arr=[] for i in range(n): arr.append([int(x) for x in input().split()]) n,m= [int(x) for x in input().split()] arr=[] for i in range(n): arr.append([x for x in input().strip()]) n=int(input()) arr=[] for i in range(n): arr.append([int(x) for x in input().split()]) ''' ```
3
381
A
Sereja and Dima
PROGRAMMING
800
[ "greedy", "implementation", "two pointers" ]
null
null
Sereja and Dima play a game. The rules of the game are very simple. The players have *n* cards in a row. Each card contains a number, all numbers on the cards are distinct. The players take turns, Sereja moves first. During his turn a player can take one card: either the leftmost card in a row, or the rightmost one. The game ends when there is no more cards. The player who has the maximum sum of numbers on his cards by the end of the game, wins. Sereja and Dima are being greedy. Each of them chooses the card with the larger number during his move. Inna is a friend of Sereja and Dima. She knows which strategy the guys are using, so she wants to determine the final score, given the initial state of the game. Help her.
The first line contains integer *n* (1<=≤<=*n*<=≤<=1000) — the number of cards on the table. The second line contains space-separated numbers on the cards from left to right. The numbers on the cards are distinct integers from 1 to 1000.
On a single line, print two integers. The first number is the number of Sereja's points at the end of the game, the second number is the number of Dima's points at the end of the game.
[ "4\n4 1 2 10\n", "7\n1 2 3 4 5 6 7\n" ]
[ "12 5\n", "16 12\n" ]
In the first sample Sereja will take cards with numbers 10 and 2, so Sereja's sum is 12. Dima will take cards with numbers 4 and 1, so Dima's sum is 5.
500
[ { "input": "4\n4 1 2 10", "output": "12 5" }, { "input": "7\n1 2 3 4 5 6 7", "output": "16 12" }, { "input": "42\n15 29 37 22 16 5 26 31 6 32 19 3 45 36 33 14 25 20 48 7 42 11 24 28 9 18 8 21 47 17 38 40 44 4 35 1 43 39 41 27 12 13", "output": "613 418" }, { "input": "43\n32 1 15 48 38 26 25 14 20 44 11 30 3 42 49 19 18 46 5 45 10 23 34 9 29 41 2 52 6 17 35 4 50 22 33 51 7 28 47 13 39 37 24", "output": "644 500" }, { "input": "1\n3", "output": "3 0" }, { "input": "45\n553 40 94 225 415 471 126 190 647 394 515 303 189 159 308 6 139 132 326 78 455 75 85 295 135 613 360 614 351 228 578 259 258 591 444 29 33 463 561 174 368 183 140 168 646", "output": "6848 6568" }, { "input": "44\n849 373 112 307 479 608 856 769 526 82 168 143 573 762 115 501 688 36 214 450 396 496 236 309 287 786 397 43 811 141 745 846 350 270 276 677 420 459 403 722 267 54 394 727", "output": "9562 9561" }, { "input": "35\n10 15 18 1 28 16 2 33 6 22 23 4 9 25 35 8 7 26 3 20 30 14 31 19 27 32 11 5 29 24 21 34 13 17 12", "output": "315 315" }, { "input": "17\n580 376 191 496 73 44 520 357 483 149 81 178 514 300 216 598 304", "output": "3238 2222" }, { "input": "30\n334 443 223 424 168 549 189 303 429 559 516 220 459 134 344 346 316 446 209 148 487 526 69 286 102 366 518 280 392 325", "output": "5246 4864" }, { "input": "95\n122 29 188 265 292 287 183 225 222 187 155 256 64 148 173 278 218 136 290 17 31 130 2 87 57 283 255 280 68 166 174 142 102 39 116 206 288 154 26 78 296 172 184 232 77 91 277 8 249 186 94 93 207 251 257 195 101 299 193 124 293 65 58 35 24 302 220 189 252 125 27 284 247 182 141 103 198 97 234 83 281 216 85 180 267 236 109 143 149 239 79 300 191 244 71", "output": "8147 7807" }, { "input": "1\n1", "output": "1 0" } ]
1,681,477,235
2,147,483,647
Python 3
OK
TESTS
34
61
0
def seanddi(): n=int(input()) a=[int(i) for i in input().split()] l=0 r=n-1 s=s1=s2=0 while l<=r: if s%2==0: if a[r]<a[l]: s1+=a[l] l+=1 else: s1+=a[r] r-=1 else: if a[r]<a[l]: s2+=a[l] l+=1 else: s2+=a[r] r-=1 s+=1 print(s1,s2) seanddi()
Title: Sereja and Dima Time Limit: None seconds Memory Limit: None megabytes Problem Description: Sereja and Dima play a game. The rules of the game are very simple. The players have *n* cards in a row. Each card contains a number, all numbers on the cards are distinct. The players take turns, Sereja moves first. During his turn a player can take one card: either the leftmost card in a row, or the rightmost one. The game ends when there is no more cards. The player who has the maximum sum of numbers on his cards by the end of the game, wins. Sereja and Dima are being greedy. Each of them chooses the card with the larger number during his move. Inna is a friend of Sereja and Dima. She knows which strategy the guys are using, so she wants to determine the final score, given the initial state of the game. Help her. Input Specification: The first line contains integer *n* (1<=≤<=*n*<=≤<=1000) — the number of cards on the table. The second line contains space-separated numbers on the cards from left to right. The numbers on the cards are distinct integers from 1 to 1000. Output Specification: On a single line, print two integers. The first number is the number of Sereja's points at the end of the game, the second number is the number of Dima's points at the end of the game. Demo Input: ['4\n4 1 2 10\n', '7\n1 2 3 4 5 6 7\n'] Demo Output: ['12 5\n', '16 12\n'] Note: In the first sample Sereja will take cards with numbers 10 and 2, so Sereja's sum is 12. Dima will take cards with numbers 4 and 1, so Dima's sum is 5.
```python def seanddi(): n=int(input()) a=[int(i) for i in input().split()] l=0 r=n-1 s=s1=s2=0 while l<=r: if s%2==0: if a[r]<a[l]: s1+=a[l] l+=1 else: s1+=a[r] r-=1 else: if a[r]<a[l]: s2+=a[l] l+=1 else: s2+=a[r] r-=1 s+=1 print(s1,s2) seanddi() ```
3
787
B
Not Afraid
PROGRAMMING
1,300
[ "greedy", "implementation", "math" ]
null
null
Since the giant heads have appeared in the sky all humanity is in danger, so all Ricks and Mortys from all parallel universes are gathering in groups to find a solution to get rid of them. There are *n* parallel universes participating in this event (*n* Ricks and *n* Mortys). I. e. each of *n* universes has one Rick and one Morty. They're gathering in *m* groups. Each person can be in many groups and a group can contain an arbitrary number of members. Ricks and Mortys have registered online in these groups. So, a person can have joined a group more than once (developer of this website hadn't considered this possibility). Summer from universe #1 knows that in each parallel universe (including hers) exactly one of Rick and Morty from that universe is a traitor and is loyal, but no one knows which one. She knows that we are doomed if there's a group such that every member in that group is a traitor (they will plan and destroy the world). Summer knows that if there's a possibility that world ends (there's a group where all members are traitors) she should immediately cancel this event. So she wants to know if she should cancel the event. You have to tell her yes if and only if there's at least one scenario (among all 2*n* possible scenarios, 2 possible scenarios for who a traitor in each universe) such that in that scenario the world will end.
The first line of input contains two integers *n* and *m* (1<=≤<=*n*,<=*m*<=≤<=104) — number of universes and number of groups respectively. The next *m* lines contain the information about the groups. *i*-th of them first contains an integer *k* (number of times someone joined *i*-th group, *k*<=&gt;<=0) followed by *k* integers *v**i*,<=1,<=*v**i*,<=2,<=...,<=*v**i*,<=*k*. If *v**i*,<=*j* is negative, it means that Rick from universe number <=-<=*v**i*,<=*j* has joined this group and otherwise it means that Morty from universe number *v**i*,<=*j* has joined it. Sum of *k* for all groups does not exceed 104.
In a single line print the answer to Summer's question. Print "YES" if she should cancel the event and "NO" otherwise.
[ "4 2\n1 -3\n4 -2 3 2 -3\n", "5 2\n5 3 -2 1 -1 5\n3 -5 2 5\n", "7 2\n3 -1 6 7\n7 -5 4 2 4 7 -3 4\n" ]
[ "YES\n", "NO\n", "YES\n" ]
In the first sample testcase, 1st group only contains the Rick from universe number 3, so in case he's a traitor, then all members of this group are traitors and so Summer should cancel the event.
1,000
[ { "input": "4 2\n1 -3\n4 -2 3 2 -3", "output": "YES" }, { "input": "5 2\n5 3 -2 1 -1 5\n3 -5 2 5", "output": "NO" }, { "input": "7 2\n3 -1 6 7\n7 -5 4 2 4 7 -3 4", "output": "YES" }, { "input": "2 1\n2 -2 2", "output": "NO" }, { "input": "7 7\n1 -2\n1 6\n2 7 -6\n2 -6 4\n2 -4 -6\n3 -5 7 -5\n1 -6", "output": "YES" }, { "input": "100 50\n2 62 -62\n2 19 -19\n2 38 -38\n2 -84 84\n2 -16 16\n2 67 -67\n2 41 -41\n2 -32 32\n2 32 -32\n2 -62 62\n2 89 -89\n2 -84 84\n2 96 -96\n2 -11 11\n2 59 -59\n2 -13 13\n2 -70 70\n2 -3 3\n2 -41 41\n2 -74 74\n2 47 -47\n2 87 -87\n2 17 -17\n2 20 -20\n2 -14 14\n2 -67 67\n2 -95 95\n2 -15 15\n2 -49 49\n2 75 -75\n2 -11 11\n2 -35 35\n2 -10 10\n2 -70 70\n2 -82 82\n2 33 -33\n2 14 -14\n2 -23 23\n2 83 -83\n2 21 -21\n2 86 -86\n2 -51 51\n2 -21 21\n2 -83 83\n2 94 -94\n2 -8 8\n2 75 -75\n2 69 -69\n2 -18 18\n2 42 -42", "output": "NO" }, { "input": "1 1\n1 1", "output": "YES" }, { "input": "1 1\n2 1 -1", "output": "NO" }, { "input": "1 50\n2 1 -1\n2 -1 1\n2 1 -1\n2 1 -1\n2 1 -1\n2 1 -1\n2 -1 1\n2 1 -1\n2 -1 1\n2 1 -1\n2 1 -1\n2 -1 1\n2 -1 1\n2 1 -1\n2 -1 1\n2 1 -1\n2 1 -1\n2 -1 1\n2 -1 1\n2 1 -1\n2 -1 1\n2 1 -1\n2 -1 1\n2 -1 1\n2 1 -1\n2 -1 1\n2 -1 1\n2 -1 1\n2 -1 1\n2 -1 1\n2 1 -1\n2 -1 1\n2 -1 1\n2 1 -1\n2 1 -1\n2 -1 1\n2 1 -1\n2 -1 1\n2 -1 1\n2 1 -1\n2 -1 1\n2 -1 1\n2 1 -1\n2 -1 1\n2 1 -1\n2 1 -1\n2 1 -1\n2 -1 1\n2 -1 1\n2 -1 1", "output": "NO" }, { "input": "10000 1\n2 -6748 6748", "output": "NO" }, { "input": "10000 1\n1 2550", "output": "YES" }, { "input": "10000 1\n10 5365 -2216 -866 -7450 -6342 4329 -777 -4329 5225 -2884", "output": "NO" }, { "input": "3 1\n3 1 1 2", "output": "YES" }, { "input": "5 1\n2 -1 -1", "output": "YES" }, { "input": "4 1\n3 1 1 -1", "output": "NO" }, { "input": "4 1\n4 3 3 3 3", "output": "YES" }, { "input": "1 1\n2 1 1", "output": "YES" }, { "input": "2 1\n2 2 2", "output": "YES" }, { "input": "4 2\n2 1 -1\n1 1", "output": "YES" }, { "input": "7 2\n3 -1 1 7\n7 -5 4 2 4 7 -3 4", "output": "YES" }, { "input": "4 1\n1 -1", "output": "YES" }, { "input": "10 1\n2 4 4", "output": "YES" }, { "input": "1 2\n2 1 -1\n2 -1 -1", "output": "YES" }, { "input": "10000 1\n2 -3 -3", "output": "YES" }, { "input": "1 2\n2 1 1\n2 -1 -1", "output": "YES" }, { "input": "5 1\n2 1 1", "output": "YES" }, { "input": "3 1\n2 3 3", "output": "YES" }, { "input": "4 1\n2 1 1", "output": "YES" }, { "input": "4 2\n3 -1 1 2\n3 -2 4 3", "output": "YES" } ]
1,490,283,691
2,191
Python 3
OK
TESTS
65
78
6,348,800
import sys n, m = map(int, input().split()) a = [] for _ in range(m): a.append(set(map(int, input().split()[1:]))) for i in a: for j in i: if -j in i: break else: print("YES") sys.exit() print("NO")
Title: Not Afraid Time Limit: None seconds Memory Limit: None megabytes Problem Description: Since the giant heads have appeared in the sky all humanity is in danger, so all Ricks and Mortys from all parallel universes are gathering in groups to find a solution to get rid of them. There are *n* parallel universes participating in this event (*n* Ricks and *n* Mortys). I. e. each of *n* universes has one Rick and one Morty. They're gathering in *m* groups. Each person can be in many groups and a group can contain an arbitrary number of members. Ricks and Mortys have registered online in these groups. So, a person can have joined a group more than once (developer of this website hadn't considered this possibility). Summer from universe #1 knows that in each parallel universe (including hers) exactly one of Rick and Morty from that universe is a traitor and is loyal, but no one knows which one. She knows that we are doomed if there's a group such that every member in that group is a traitor (they will plan and destroy the world). Summer knows that if there's a possibility that world ends (there's a group where all members are traitors) she should immediately cancel this event. So she wants to know if she should cancel the event. You have to tell her yes if and only if there's at least one scenario (among all 2*n* possible scenarios, 2 possible scenarios for who a traitor in each universe) such that in that scenario the world will end. Input Specification: The first line of input contains two integers *n* and *m* (1<=≤<=*n*,<=*m*<=≤<=104) — number of universes and number of groups respectively. The next *m* lines contain the information about the groups. *i*-th of them first contains an integer *k* (number of times someone joined *i*-th group, *k*<=&gt;<=0) followed by *k* integers *v**i*,<=1,<=*v**i*,<=2,<=...,<=*v**i*,<=*k*. If *v**i*,<=*j* is negative, it means that Rick from universe number <=-<=*v**i*,<=*j* has joined this group and otherwise it means that Morty from universe number *v**i*,<=*j* has joined it. Sum of *k* for all groups does not exceed 104. Output Specification: In a single line print the answer to Summer's question. Print "YES" if she should cancel the event and "NO" otherwise. Demo Input: ['4 2\n1 -3\n4 -2 3 2 -3\n', '5 2\n5 3 -2 1 -1 5\n3 -5 2 5\n', '7 2\n3 -1 6 7\n7 -5 4 2 4 7 -3 4\n'] Demo Output: ['YES\n', 'NO\n', 'YES\n'] Note: In the first sample testcase, 1st group only contains the Rick from universe number 3, so in case he's a traitor, then all members of this group are traitors and so Summer should cancel the event.
```python import sys n, m = map(int, input().split()) a = [] for _ in range(m): a.append(set(map(int, input().split()[1:]))) for i in a: for j in i: if -j in i: break else: print("YES") sys.exit() print("NO") ```
3
221
A
Little Elephant and Function
PROGRAMMING
1,000
[ "implementation", "math" ]
null
null
The Little Elephant enjoys recursive functions. This time he enjoys the sorting function. Let *a* is a permutation of an integers from 1 to *n*, inclusive, and *a**i* denotes the *i*-th element of the permutation. The Little Elephant's recursive function *f*(*x*), that sorts the first *x* permutation's elements, works as follows: - If *x*<==<=1, exit the function. - Otherwise, call *f*(*x*<=-<=1), and then make *swap*(*a**x*<=-<=1,<=*a**x*) (swap the *x*-th and (*x*<=-<=1)-th elements of *a*). The Little Elephant's teacher believes that this function does not work correctly. But that-be do not get an F, the Little Elephant wants to show the performance of its function. Help him, find a permutation of numbers from 1 to *n*, such that after performing the Little Elephant's function (that is call *f*(*n*)), the permutation will be sorted in ascending order.
A single line contains integer *n* (1<=≤<=*n*<=≤<=1000) — the size of permutation.
In a single line print *n* distinct integers from 1 to *n* — the required permutation. Numbers in a line should be separated by spaces. It is guaranteed that the answer exists.
[ "1\n", "2\n" ]
[ "1 ", "2 1 " ]
none
500
[ { "input": "1", "output": "1 " }, { "input": "2", "output": "2 1 " }, { "input": "3", "output": "3 1 2 " }, { "input": "4", "output": "4 1 2 3 " }, { "input": "5", "output": "5 1 2 3 4 " }, { "input": "6", "output": "6 1 2 3 4 5 " }, { "input": "7", "output": "7 1 2 3 4 5 6 " }, { "input": "1000", "output": "1000 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 15..." }, { "input": "999", "output": "999 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154..." }, { "input": "998", "output": "998 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154..." }, { "input": "997", "output": "997 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154..." }, { "input": "900", "output": "900 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154..." }, { "input": "101", "output": "101 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 " }, { "input": "3", "output": "3 1 2 " }, { "input": "67", "output": "67 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 " }, { "input": "779", "output": "779 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154..." }, { "input": "195", "output": "195 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154..." }, { "input": "907", "output": "907 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154..." }, { "input": "971", "output": "971 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154..." }, { "input": "683", "output": "683 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154..." }, { "input": "99", "output": "99 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 " }, { "input": "811", "output": "811 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154..." }, { "input": "875", "output": "875 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154..." }, { "input": "291", "output": "291 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154..." }, { "input": "3", "output": "3 1 2 " }, { "input": "419", "output": "419 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154..." }, { "input": "779", "output": "779 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154..." }, { "input": "195", "output": "195 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154..." }, { "input": "907", "output": "907 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154..." }, { "input": "21", "output": "21 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 " }, { "input": "22", "output": "22 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 " }, { "input": "23", "output": "23 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 " }, { "input": "24", "output": "24 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 " }, { "input": "25", "output": "25 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 " } ]
1,684,932,218
2,147,483,647
Python 3
OK
TESTS
34
92
0
""" Logic: 1. function keeps calling itself till 1, then swaps from 1 to n 2. so max element should be 1st element, then rest should be in ascending order """ n = int(input()) lst = [str(i) for i in range(1, n)] print(str(n), " ".join(lst))
Title: Little Elephant and Function Time Limit: None seconds Memory Limit: None megabytes Problem Description: The Little Elephant enjoys recursive functions. This time he enjoys the sorting function. Let *a* is a permutation of an integers from 1 to *n*, inclusive, and *a**i* denotes the *i*-th element of the permutation. The Little Elephant's recursive function *f*(*x*), that sorts the first *x* permutation's elements, works as follows: - If *x*<==<=1, exit the function. - Otherwise, call *f*(*x*<=-<=1), and then make *swap*(*a**x*<=-<=1,<=*a**x*) (swap the *x*-th and (*x*<=-<=1)-th elements of *a*). The Little Elephant's teacher believes that this function does not work correctly. But that-be do not get an F, the Little Elephant wants to show the performance of its function. Help him, find a permutation of numbers from 1 to *n*, such that after performing the Little Elephant's function (that is call *f*(*n*)), the permutation will be sorted in ascending order. Input Specification: A single line contains integer *n* (1<=≤<=*n*<=≤<=1000) — the size of permutation. Output Specification: In a single line print *n* distinct integers from 1 to *n* — the required permutation. Numbers in a line should be separated by spaces. It is guaranteed that the answer exists. Demo Input: ['1\n', '2\n'] Demo Output: ['1 ', '2 1 '] Note: none
```python """ Logic: 1. function keeps calling itself till 1, then swaps from 1 to n 2. so max element should be 1st element, then rest should be in ascending order """ n = int(input()) lst = [str(i) for i in range(1, n)] print(str(n), " ".join(lst)) ```
3
61
A
Ultra-Fast Mathematician
PROGRAMMING
800
[ "implementation" ]
A. Ultra-Fast Mathematician
2
256
Shapur was an extremely gifted student. He was great at everything including Combinatorics, Algebra, Number Theory, Geometry, Calculus, etc. He was not only smart but extraordinarily fast! He could manage to sum 1018 numbers in a single second. One day in 230 AD Shapur was trying to find out if any one can possibly do calculations faster than him. As a result he made a very great contest and asked every one to come and take part. In his contest he gave the contestants many different pairs of numbers. Each number is made from digits 0 or 1. The contestants should write a new number corresponding to the given pair of numbers. The rule is simple: The *i*-th digit of the answer is 1 if and only if the *i*-th digit of the two given numbers differ. In the other case the *i*-th digit of the answer is 0. Shapur made many numbers and first tried his own speed. He saw that he can perform these operations on numbers of length ∞ (length of a number is number of digits in it) in a glance! He always gives correct answers so he expects the contestants to give correct answers, too. He is a good fellow so he won't give anyone very big numbers and he always gives one person numbers of same length. Now you are going to take part in Shapur's contest. See if you are faster and more accurate.
There are two lines in each input. Each of them contains a single number. It is guaranteed that the numbers are made from 0 and 1 only and that their length is same. The numbers may start with 0. The length of each number doesn't exceed 100.
Write one line — the corresponding answer. Do not omit the leading 0s.
[ "1010100\n0100101\n", "000\n111\n", "1110\n1010\n", "01110\n01100\n" ]
[ "1110001\n", "111\n", "0100\n", "00010\n" ]
none
500
[ { "input": "1010100\n0100101", "output": "1110001" }, { "input": "000\n111", "output": "111" }, { "input": "1110\n1010", "output": "0100" }, { "input": "01110\n01100", "output": "00010" }, { "input": "011101\n000001", "output": "011100" }, { "input": "10\n01", "output": "11" }, { "input": "00111111\n11011101", "output": "11100010" }, { "input": "011001100\n101001010", "output": "110000110" }, { "input": "1100100001\n0110101100", "output": "1010001101" }, { "input": "00011101010\n10010100101", "output": "10001001111" }, { "input": "100000101101\n111010100011", "output": "011010001110" }, { "input": "1000001111010\n1101100110001", "output": "0101101001011" }, { "input": "01011111010111\n10001110111010", "output": "11010001101101" }, { "input": "110010000111100\n001100101011010", "output": "111110101100110" }, { "input": "0010010111110000\n0000000011010110", "output": "0010010100100110" }, { "input": "00111110111110000\n01111100001100000", "output": "01000010110010000" }, { "input": "101010101111010001\n001001111101111101", "output": "100011010010101100" }, { "input": "0110010101111100000\n0011000101000000110", "output": "0101010000111100110" }, { "input": "11110100011101010111\n00001000011011000000", "output": "11111100000110010111" }, { "input": "101010101111101101001\n111010010010000011111", "output": "010000111101101110110" }, { "input": "0000111111100011000010\n1110110110110000001010", "output": "1110001001010011001000" }, { "input": "10010010101000110111000\n00101110100110111000111", "output": "10111100001110001111111" }, { "input": "010010010010111100000111\n100100111111100011001110", "output": "110110101101011111001001" }, { "input": "0101110100100111011010010\n0101100011010111001010001", "output": "0000010111110000010000011" }, { "input": "10010010100011110111111011\n10000110101100000001000100", "output": "00010100001111110110111111" }, { "input": "000001111000000100001000000\n011100111101111001110110001", "output": "011101000101111101111110001" }, { "input": "0011110010001001011001011100\n0000101101000011101011001010", "output": "0011011111001010110010010110" }, { "input": "11111000000000010011001101111\n11101110011001010100010000000", "output": "00010110011001000111011101111" }, { "input": "011001110000110100001100101100\n001010000011110000001000101001", "output": "010011110011000100000100000101" }, { "input": "1011111010001100011010110101111\n1011001110010000000101100010101", "output": "0000110100011100011111010111010" }, { "input": "10111000100001000001010110000001\n10111000001100101011011001011000", "output": "00000000101101101010001111011001" }, { "input": "000001010000100001000000011011100\n111111111001010100100001100000111", "output": "111110101001110101100001111011011" }, { "input": "1101000000000010011011101100000110\n1110000001100010011010000011011110", "output": "0011000001100000000001101111011000" }, { "input": "01011011000010100001100100011110001\n01011010111000001010010100001110000", "output": "00000001111010101011110000010000001" }, { "input": "000011111000011001000110111100000100\n011011000110000111101011100111000111", "output": "011000111110011110101101011011000011" }, { "input": "1001000010101110001000000011111110010\n0010001011010111000011101001010110000", "output": "1011001001111001001011101010101000010" }, { "input": "00011101011001100101111111000000010101\n10010011011011001011111000000011101011", "output": "10001110000010101110000111000011111110" }, { "input": "111011100110001001101111110010111001010\n111111101101111001110010000101101000100", "output": "000100001011110000011101110111010001110" }, { "input": "1111001001101000001000000010010101001010\n0010111100111110001011000010111110111001", "output": "1101110101010110000011000000101011110011" }, { "input": "00100101111000000101011111110010100011010\n11101110001010010101001000111110101010100", "output": "11001011110010010000010111001100001001110" }, { "input": "101011001110110100101001000111010101101111\n100111100110101011010100111100111111010110", "output": "001100101000011111111101111011101010111001" }, { "input": "1111100001100101000111101001001010011100001\n1000110011000011110010001011001110001000001", "output": "0111010010100110110101100010000100010100000" }, { "input": "01100111011111010101000001101110000001110101\n10011001011111110000000101011001001101101100", "output": "11111110000000100101000100110111001100011001" }, { "input": "110010100111000100100101100000011100000011001\n011001111011100110000110111001110110100111011", "output": "101011011100100010100011011001101010100100010" }, { "input": "0001100111111011010110100100111000000111000110\n1100101011000000000001010010010111001100110001", "output": "1101001100111011010111110110101111001011110111" }, { "input": "00000101110110110001110010100001110100000100000\n10010000110011110001101000111111101010011010001", "output": "10010101000101000000011010011110011110011110001" }, { "input": "110000100101011100100011001111110011111110010001\n101011111001011100110110111101110011010110101100", "output": "011011011100000000010101110010000000101000111101" }, { "input": "0101111101011111010101011101000011101100000000111\n0000101010110110001110101011011110111001010100100", "output": "0101010111101001011011110110011101010101010100011" }, { "input": "11000100010101110011101000011111001010110111111100\n00001111000111001011111110000010101110111001000011", "output": "11001011010010111000010110011101100100001110111111" }, { "input": "101000001101111101101111111000001110110010101101010\n010011100111100001100000010001100101000000111011011", "output": "111011101010011100001111101001101011110010010110001" }, { "input": "0011111110010001010100010110111000110011001101010100\n0111000000100010101010000100101000000100101000111001", "output": "0100111110110011111110010010010000110111100101101101" }, { "input": "11101010000110000011011010000001111101000111011111100\n10110011110001010100010110010010101001010111100100100", "output": "01011001110111010111001100010011010100010000111011000" }, { "input": "011000100001000001101000010110100110011110100111111011\n111011001000001001110011001111011110111110110011011111", "output": "100011101001001000011011011001111000100000010100100100" }, { "input": "0111010110010100000110111011010110100000000111110110000\n1011100100010001101100000100111111101001110010000100110", "output": "1100110010000101101010111111101001001001110101110010110" }, { "input": "10101000100111000111010001011011011011110100110101100011\n11101111000000001100100011111000100100000110011001101110", "output": "01000111100111001011110010100011111111110010101100001101" }, { "input": "000000111001010001000000110001001011100010011101010011011\n110001101000010010000101000100001111101001100100001010010", "output": "110001010001000011000101110101000100001011111001011001001" }, { "input": "0101011100111010000111110010101101111111000000111100011100\n1011111110000010101110111001000011100000100111111111000111", "output": "1110100010111000101001001011101110011111100111000011011011" }, { "input": "11001000001100100111100111100100101011000101001111001001101\n10111110100010000011010100110100100011101001100000001110110", "output": "01110110101110100100110011010000001000101100101111000111011" }, { "input": "010111011011101000000110000110100110001110100001110110111011\n101011110011101011101101011111010100100001100111100100111011", "output": "111100101000000011101011011001110010101111000110010010000000" }, { "input": "1001011110110110000100011001010110000100011010010111010101110\n1101111100001000010111110011010101111010010100000001000010111", "output": "0100100010111110010011101010000011111110001110010110010111001" }, { "input": "10000010101111100111110101111000010100110111101101111111111010\n10110110101100101010011001011010100110111011101100011001100111", "output": "00110100000011001101101100100010110010001100000001100110011101" }, { "input": "011111010011111000001010101001101001000010100010111110010100001\n011111001011000011111001000001111001010110001010111101000010011", "output": "000000011000111011110011101000010000010100101000000011010110010" }, { "input": "1111000000110001011101000100100100001111011100001111001100011111\n1101100110000101100001100000001001011011111011010101000101001010", "output": "0010100110110100111100100100101101010100100111011010001001010101" }, { "input": "01100000101010010011001110100110110010000110010011011001100100011\n10110110010110111100100111000111000110010000000101101110000010111", "output": "11010110111100101111101001100001110100010110010110110111100110100" }, { "input": "001111111010000100001100001010011001111110011110010111110001100111\n110000101001011000100010101100100110000111100000001101001110010111", "output": "111111010011011100101110100110111111111001111110011010111111110000" }, { "input": "1011101011101101011110101101011101011000010011100101010101000100110\n0001000001001111010111100100111101100000000001110001000110000000110", "output": "1010101010100010001001001001100000111000010010010100010011000100000" }, { "input": "01000001011001010011011100010000100100110101111011011011110000001110\n01011110000110011011000000000011000111100001010000000011111001110000", "output": "00011111011111001000011100010011100011010100101011011000001001111110" }, { "input": "110101010100110101000001111110110100010010000100111110010100110011100\n111010010111111011100110101011001011001110110111110100000110110100111", "output": "001111000011001110100111010101111111011100110011001010010010000111011" }, { "input": "1001101011000001011111100110010010000011010001001111011100010100110001\n1111100111110101001111010001010000011001001001010110001111000000100101", "output": "0110001100110100010000110111000010011010011000011001010011010100010100" }, { "input": "00000111110010110001110110001010010101000111011001111111100110011110010\n00010111110100000100110101000010010001100001100011100000001100010100010", "output": "00010000000110110101000011001000000100100110111010011111101010001010000" }, { "input": "100101011100101101000011010001011001101110101110001100010001010111001110\n100001111100101011011111110000001111000111001011111110000010101110111001", "output": "000100100000000110011100100001010110101001100101110010010011111001110111" }, { "input": "1101100001000111001101001011101000111000011110000001001101101001111011010\n0101011101010100011011010110101000010010110010011110101100000110110001000", "output": "1000111100010011010110011101000000101010101100011111100001101111001010010" }, { "input": "01101101010011110101100001110101111011100010000010001101111000011110111111\n00101111001101001100111010000101110000100101101111100111101110010100011011", "output": "01000010011110111001011011110000001011000111101101101010010110001010100100" }, { "input": "101100101100011001101111110110110010100110110010100001110010110011001101011\n000001011010101011110011111101001110000111000010001101000010010000010001101", "output": "101101110110110010011100001011111100100001110000101100110000100011011100110" }, { "input": "0010001011001010001100000010010011110110011000100000000100110000101111001110\n1100110100111000110100001110111001011101001100001010100001010011100110110001", "output": "1110111111110010111000001100101010101011010100101010100101100011001001111111" }, { "input": "00101101010000000101011001101011001100010001100000101011101110000001111001000\n10010110010111000000101101000011101011001010000011011101101011010000000011111", "output": "10111011000111000101110100101000100111011011100011110110000101010001111010111" }, { "input": "111100000100100000101001100001001111001010001000001000000111010000010101101011\n001000100010100101111011111011010110101100001111011000010011011011100010010110", "output": 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"1100111110011001000111101001001011000110011010111111100010111111001100111111011101100111101011\n1100000011001000110100110111000001011001010111101000010010100011000001100100111101101000010110", "output": "0000111101010001110011011110001010011111001101010111110000011100001101011011100000001111111101" }, { "input": "00011000100100110111100101100100000000010011110111110010101110110011100001010111010011110100101\n00011011111011111011100101100111100101001110010111000010000111000100100100000001110101111011011", "output": "00000011011111001100000000000011100101011101100000110000101001110111000101010110100110001111110" }, { "input": "000101011001001100000111100010110101111011110101111101000110001101011010111110110011100100000001\n011000101010011111011000111000100000000011011000000001111110001000001111101010110000011100001111", "output": "011101110011010011011111011010010101111000101101111100111000000101010101010100000011111000001110" }, { "input": "1000101001011010000100100100010010011101011001110101111011101111111110010101001101010001010101001\n0110110010011100011111011111110111000000010001110100001010111110101011010011111011111110000110000", "output": "1110011011000110011011111011100101011101001000000001110001010001010101000110110110101111010011001" }, { "input": "01111010010101100111110111111011011010100001011101010000111100101101101110111011001100101011100111\n00001100110110100001111011000010001001001100000010111101000001111011100000010111010010000011000010", "output": "01110110100011000110001100111001010011101101011111101101111101010110001110101100011110101000100101" }, { "input": "111101011101111000001011001101111010110111001101110100100011111011011101001101010101011010111000110\n101111100101101101001100110011000001111010011101110111110110101110011011110011111100001001110101101", "output": "010010111000010101000111111110111011001101010000000011010101010101000110111110101001010011001101011" }, { "input": "1010000011010110011101001101110001110010000111011101110010110110111111001001110100101100010101010001\n0111101000111100101100000101111010100100001000011101010100110011100011010011010101000100101011100011", "output": "1101101011101010110001001000001011010110001111000000100110000101011100011010100001101000111110110010" }, { "input": "0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001\n1111111010111111101011111110101111111010111111101011111110101111111010111111101011111110101111111010", "output": "1111111010111111101011111110101111111010111111101011111110101111111010111111101011111110101111111011" }, { "input": "0\n0", "output": "0" }, { "input": "0\n1", "output": "1" } ]
1,592,992,856
2,147,483,647
Python 3
OK
TESTS
102
124
6,758,400
a=input() b=input() n=len(a) a=int(a,2) b=int(b,2) r=bin(a^b)[2:] print('0'*(n-len(r))+str(r))
Title: Ultra-Fast Mathematician Time Limit: 2 seconds Memory Limit: 256 megabytes Problem Description: Shapur was an extremely gifted student. He was great at everything including Combinatorics, Algebra, Number Theory, Geometry, Calculus, etc. He was not only smart but extraordinarily fast! He could manage to sum 1018 numbers in a single second. One day in 230 AD Shapur was trying to find out if any one can possibly do calculations faster than him. As a result he made a very great contest and asked every one to come and take part. In his contest he gave the contestants many different pairs of numbers. Each number is made from digits 0 or 1. The contestants should write a new number corresponding to the given pair of numbers. The rule is simple: The *i*-th digit of the answer is 1 if and only if the *i*-th digit of the two given numbers differ. In the other case the *i*-th digit of the answer is 0. Shapur made many numbers and first tried his own speed. He saw that he can perform these operations on numbers of length ∞ (length of a number is number of digits in it) in a glance! He always gives correct answers so he expects the contestants to give correct answers, too. He is a good fellow so he won't give anyone very big numbers and he always gives one person numbers of same length. Now you are going to take part in Shapur's contest. See if you are faster and more accurate. Input Specification: There are two lines in each input. Each of them contains a single number. It is guaranteed that the numbers are made from 0 and 1 only and that their length is same. The numbers may start with 0. The length of each number doesn't exceed 100. Output Specification: Write one line — the corresponding answer. Do not omit the leading 0s. Demo Input: ['1010100\n0100101\n', '000\n111\n', '1110\n1010\n', '01110\n01100\n'] Demo Output: ['1110001\n', '111\n', '0100\n', '00010\n'] Note: none
```python a=input() b=input() n=len(a) a=int(a,2) b=int(b,2) r=bin(a^b)[2:] print('0'*(n-len(r))+str(r)) ```
3.956411
474
B
Worms
PROGRAMMING
1,200
[ "binary search", "implementation" ]
null
null
It is lunch time for Mole. His friend, Marmot, prepared him a nice game for lunch. Marmot brought Mole *n* ordered piles of worms such that *i*-th pile contains *a**i* worms. He labeled all these worms with consecutive integers: worms in first pile are labeled with numbers 1 to *a*1, worms in second pile are labeled with numbers *a*1<=+<=1 to *a*1<=+<=*a*2 and so on. See the example for a better understanding. Mole can't eat all the worms (Marmot brought a lot) and, as we all know, Mole is blind, so Marmot tells him the labels of the best juicy worms. Marmot will only give Mole a worm if Mole says correctly in which pile this worm is contained. Poor Mole asks for your help. For all juicy worms said by Marmot, tell Mole the correct answers.
The first line contains a single integer *n* (1<=≤<=*n*<=≤<=105), the number of piles. The second line contains *n* integers *a*1,<=*a*2,<=...,<=*a**n* (1<=≤<=*a**i*<=≤<=103, *a*1<=+<=*a*2<=+<=...<=+<=*a**n*<=≤<=106), where *a**i* is the number of worms in the *i*-th pile. The third line contains single integer *m* (1<=≤<=*m*<=≤<=105), the number of juicy worms said by Marmot. The fourth line contains *m* integers *q*1,<=*q*2,<=...,<=*q**m* (1<=≤<=*q**i*<=≤<=*a*1<=+<=*a*2<=+<=...<=+<=*a**n*), the labels of the juicy worms.
Print *m* lines to the standard output. The *i*-th line should contain an integer, representing the number of the pile where the worm labeled with the number *q**i* is.
[ "5\n2 7 3 4 9\n3\n1 25 11\n" ]
[ "1\n5\n3\n" ]
For the sample input: - The worms with labels from [1, 2] are in the first pile. - The worms with labels from [3, 9] are in the second pile. - The worms with labels from [10, 12] are in the third pile. - The worms with labels from [13, 16] are in the fourth pile. - The worms with labels from [17, 25] are in the fifth pile.
1,000
[ { "input": "5\n2 7 3 4 9\n3\n1 25 11", "output": "1\n5\n3" } ]
1,672,990,901
2,147,483,647
Python 3
OK
TESTS
38
327
10,444,800
import bisect n = int(input()) a = list(map(int,input().split())) m = int(input()) q = list(map(int,input().split())) l = [a[0]] masha = [] s = 0 for i in range(1,n): l.append(l[-1]+a[i]) for i in range(m): s = bisect.bisect_left(l, q[i]) masha.append(s+1) print(*masha,sep='\n')
Title: Worms Time Limit: None seconds Memory Limit: None megabytes Problem Description: It is lunch time for Mole. His friend, Marmot, prepared him a nice game for lunch. Marmot brought Mole *n* ordered piles of worms such that *i*-th pile contains *a**i* worms. He labeled all these worms with consecutive integers: worms in first pile are labeled with numbers 1 to *a*1, worms in second pile are labeled with numbers *a*1<=+<=1 to *a*1<=+<=*a*2 and so on. See the example for a better understanding. Mole can't eat all the worms (Marmot brought a lot) and, as we all know, Mole is blind, so Marmot tells him the labels of the best juicy worms. Marmot will only give Mole a worm if Mole says correctly in which pile this worm is contained. Poor Mole asks for your help. For all juicy worms said by Marmot, tell Mole the correct answers. Input Specification: The first line contains a single integer *n* (1<=≤<=*n*<=≤<=105), the number of piles. The second line contains *n* integers *a*1,<=*a*2,<=...,<=*a**n* (1<=≤<=*a**i*<=≤<=103, *a*1<=+<=*a*2<=+<=...<=+<=*a**n*<=≤<=106), where *a**i* is the number of worms in the *i*-th pile. The third line contains single integer *m* (1<=≤<=*m*<=≤<=105), the number of juicy worms said by Marmot. The fourth line contains *m* integers *q*1,<=*q*2,<=...,<=*q**m* (1<=≤<=*q**i*<=≤<=*a*1<=+<=*a*2<=+<=...<=+<=*a**n*), the labels of the juicy worms. Output Specification: Print *m* lines to the standard output. The *i*-th line should contain an integer, representing the number of the pile where the worm labeled with the number *q**i* is. Demo Input: ['5\n2 7 3 4 9\n3\n1 25 11\n'] Demo Output: ['1\n5\n3\n'] Note: For the sample input: - The worms with labels from [1, 2] are in the first pile. - The worms with labels from [3, 9] are in the second pile. - The worms with labels from [10, 12] are in the third pile. - The worms with labels from [13, 16] are in the fourth pile. - The worms with labels from [17, 25] are in the fifth pile.
```python import bisect n = int(input()) a = list(map(int,input().split())) m = int(input()) q = list(map(int,input().split())) l = [a[0]] masha = [] s = 0 for i in range(1,n): l.append(l[-1]+a[i]) for i in range(m): s = bisect.bisect_left(l, q[i]) masha.append(s+1) print(*masha,sep='\n') ```
3
0
none
none
none
0
[ "none" ]
null
null
For a given positive integer *n* denote its *k*-rounding as the minimum positive integer *x*, such that *x* ends with *k* or more zeros in base 10 and is divisible by *n*. For example, 4-rounding of 375 is 375·80<==<=30000. 30000 is the minimum integer such that it ends with 4 or more zeros and is divisible by 375. Write a program that will perform the *k*-rounding of *n*.
The only line contains two integers *n* and *k* (1<=≤<=*n*<=≤<=109, 0<=≤<=*k*<=≤<=8).
Print the *k*-rounding of *n*.
[ "375 4\n", "10000 1\n", "38101 0\n", "123456789 8\n" ]
[ "30000\n", "10000\n", "38101\n", "12345678900000000\n" ]
none
0
[ { "input": "375 4", "output": "30000" }, { "input": "10000 1", "output": "10000" }, { "input": "38101 0", "output": "38101" }, { "input": "123456789 8", "output": "12345678900000000" }, { "input": "1 0", "output": "1" }, { "input": "2 0", "output": "2" }, { "input": "100 0", "output": "100" }, { "input": "1000000000 0", "output": "1000000000" }, { "input": "160 2", "output": "800" }, { "input": "3 0", "output": "3" }, { "input": "10 0", "output": "10" }, { "input": "1 1", "output": "10" }, { "input": "2 1", "output": "10" }, { "input": "3 1", "output": "30" }, { "input": "4 1", "output": "20" }, { "input": "5 1", "output": "10" }, { "input": "6 1", "output": "30" }, { "input": "7 1", "output": "70" }, { "input": "8 1", "output": "40" }, { "input": "9 1", "output": "90" }, { "input": "10 1", "output": "10" }, { "input": "11 1", "output": "110" }, { "input": "12 1", "output": "60" }, { "input": "16 2", "output": "400" }, { "input": "2 2", "output": "100" }, { "input": "1 2", "output": "100" }, { "input": "5 2", "output": "100" }, { "input": "15 2", "output": "300" }, { "input": "36 2", "output": "900" }, { "input": "1 8", "output": "100000000" }, { "input": "8 8", "output": "100000000" }, { "input": "96 8", "output": "300000000" }, { "input": "175 8", "output": "700000000" }, { "input": "9999995 8", "output": "199999900000000" }, { "input": "999999999 8", "output": "99999999900000000" }, { "input": "12345678 8", "output": "617283900000000" }, { "input": "78125 8", "output": "100000000" }, { "input": "390625 8", "output": "100000000" }, { "input": "1953125 8", "output": "500000000" }, { "input": "9765625 8", "output": "2500000000" }, { "input": "68359375 8", "output": "17500000000" }, { "input": "268435456 8", "output": "104857600000000" }, { "input": "125829120 8", "output": "9830400000000" }, { "input": "128000 8", "output": "400000000" }, { "input": "300000 8", "output": "300000000" }, { "input": "3711871 8", "output": "371187100000000" }, { "input": "55555 8", "output": "1111100000000" }, { "input": "222222222 8", "output": "11111111100000000" }, { "input": "479001600 8", "output": "7484400000000" }, { "input": "655360001 7", "output": "6553600010000000" }, { "input": "655360001 8", "output": "65536000100000000" }, { "input": "1000000000 1", "output": "1000000000" }, { "input": "1000000000 7", "output": "1000000000" }, { "input": "1000000000 8", "output": "1000000000" }, { "input": "100000000 8", "output": "100000000" }, { "input": "10000000 8", "output": "100000000" }, { "input": "1000000 8", "output": "100000000" }, { "input": "10000009 8", "output": "1000000900000000" }, { "input": "10000005 8", "output": "200000100000000" }, { "input": "10000002 8", "output": "500000100000000" }, { "input": "999999997 8", "output": "99999999700000000" }, { "input": "999999997 7", "output": "9999999970000000" }, { "input": "999999995 8", "output": "19999999900000000" }, { "input": "123 8", "output": "12300000000" }, { "input": "24 2", "output": "600" }, { "input": "16 4", "output": "10000" }, { "input": "123456787 8", "output": "12345678700000000" }, { "input": "100000000 8", "output": "100000000" }, { "input": "7 1", "output": "70" }, { "input": "101 1", "output": "1010" }, { "input": "50 2", "output": "100" }, { "input": "999999818 1", "output": "4999999090" }, { "input": "2 1", "output": "10" }, { "input": "123 1", "output": "1230" }, { "input": "16 1", "output": "80" }, { "input": "1 1", "output": "10" }, { "input": "1000000000 8", "output": "1000000000" }, { "input": "15304 6", "output": "1913000000" }, { "input": "3 8", "output": "300000000" }, { "input": "4 2", "output": "100" }, { "input": "100000 7", "output": "10000000" }, { "input": "5 8", "output": "100000000" }, { "input": "16724 6", "output": "4181000000" }, { "input": "999999999 1", "output": "9999999990" }, { "input": "999999990 8", "output": "9999999900000000" }, { "input": "999999999 8", "output": "99999999900000000" }, { "input": "100000 1", "output": "100000" }, { "input": "8 3", "output": "1000" }, { "input": "16768 6", "output": "262000000" }, { "input": "123456789 1", "output": "1234567890" }, { "input": "2 8", "output": "100000000" }, { "input": "999999937 8", "output": "99999993700000000" }, { "input": "5 1", "output": "10" }, { "input": "2000000 7", "output": "10000000" }, { "input": "1999998 2", "output": "99999900" }, { "input": "125 3", "output": "1000" } ]
1,505,653,941
441
Python 3
OK
TESTS
96
77
5,529,600
def getNumb(n): res1 = 0 while n % 5 == 0: res1 += 1 n /= 5 res2 = 0 while n % 2 == 0: res2 += 1 n /= 2 return (res1, res2) i, n = map(int, input().split()) a = getNumb(i) print(i * 5 ** (max(n - a[0], 0)) * 2 ** (max(n - a[1], 0)))
Title: none Time Limit: None seconds Memory Limit: None megabytes Problem Description: For a given positive integer *n* denote its *k*-rounding as the minimum positive integer *x*, such that *x* ends with *k* or more zeros in base 10 and is divisible by *n*. For example, 4-rounding of 375 is 375·80<==<=30000. 30000 is the minimum integer such that it ends with 4 or more zeros and is divisible by 375. Write a program that will perform the *k*-rounding of *n*. Input Specification: The only line contains two integers *n* and *k* (1<=≤<=*n*<=≤<=109, 0<=≤<=*k*<=≤<=8). Output Specification: Print the *k*-rounding of *n*. Demo Input: ['375 4\n', '10000 1\n', '38101 0\n', '123456789 8\n'] Demo Output: ['30000\n', '10000\n', '38101\n', '12345678900000000\n'] Note: none
```python def getNumb(n): res1 = 0 while n % 5 == 0: res1 += 1 n /= 5 res2 = 0 while n % 2 == 0: res2 += 1 n /= 2 return (res1, res2) i, n = map(int, input().split()) a = getNumb(i) print(i * 5 ** (max(n - a[0], 0)) * 2 ** (max(n - a[1], 0))) ```
3
71
A
Way Too Long Words
PROGRAMMING
800
[ "strings" ]
A. Way Too Long Words
1
256
Sometimes some words like "localization" or "internationalization" are so long that writing them many times in one text is quite tiresome. Let's consider a word too long, if its length is strictly more than 10 characters. All too long words should be replaced with a special abbreviation. This abbreviation is made like this: we write down the first and the last letter of a word and between them we write the number of letters between the first and the last letters. That number is in decimal system and doesn't contain any leading zeroes. Thus, "localization" will be spelt as "l10n", and "internationalization» will be spelt as "i18n". You are suggested to automatize the process of changing the words with abbreviations. At that all too long words should be replaced by the abbreviation and the words that are not too long should not undergo any changes.
The first line contains an integer *n* (1<=≤<=*n*<=≤<=100). Each of the following *n* lines contains one word. All the words consist of lowercase Latin letters and possess the lengths of from 1 to 100 characters.
Print *n* lines. The *i*-th line should contain the result of replacing of the *i*-th word from the input data.
[ "4\nword\nlocalization\ninternationalization\npneumonoultramicroscopicsilicovolcanoconiosis\n" ]
[ "word\nl10n\ni18n\np43s\n" ]
none
500
[ { "input": "4\nword\nlocalization\ninternationalization\npneumonoultramicroscopicsilicovolcanoconiosis", "output": "word\nl10n\ni18n\np43s" }, { "input": "5\nabcdefgh\nabcdefghi\nabcdefghij\nabcdefghijk\nabcdefghijklm", "output": "abcdefgh\nabcdefghi\nabcdefghij\na9k\na11m" }, { "input": "3\nnjfngnrurunrgunrunvurn\njfvnjfdnvjdbfvsbdubruvbubvkdb\nksdnvidnviudbvibd", "output": "n20n\nj27b\nk15d" }, { "input": "1\ntcyctkktcctrcyvbyiuhihhhgyvyvyvyvjvytchjckt", "output": "t41t" }, { "input": "24\nyou\nare\nregistered\nfor\npractice\nyou\ncan\nsolve\nproblems\nunofficially\nresults\ncan\nbe\nfound\nin\nthe\ncontest\nstatus\nand\nin\nthe\nbottom\nof\nstandings", "output": "you\nare\nregistered\nfor\npractice\nyou\ncan\nsolve\nproblems\nu10y\nresults\ncan\nbe\nfound\nin\nthe\ncontest\nstatus\nand\nin\nthe\nbottom\nof\nstandings" }, { "input": "1\na", "output": "a" }, { "input": "26\na\nb\nc\nd\ne\nf\ng\nh\ni\nj\nk\nl\nm\nn\no\np\nq\nr\ns\nt\nu\nv\nw\nx\ny\nz", "output": "a\nb\nc\nd\ne\nf\ng\nh\ni\nj\nk\nl\nm\nn\no\np\nq\nr\ns\nt\nu\nv\nw\nx\ny\nz" }, { "input": "1\nabcdefghijabcdefghijabcdefghijabcdefghijabcdefghijabcdefghijabcdefghijabcdefghijabcdefghijabcdefghij", "output": "a98j" }, { "input": "10\ngyartjdxxlcl\nfzsck\nuidwu\nxbymclornemdmtj\nilppyoapitawgje\ncibzc\ndrgbeu\nhezplmsdekhhbo\nfeuzlrimbqbytdu\nkgdco", "output": "g10l\nfzsck\nuidwu\nx13j\ni13e\ncibzc\ndrgbeu\nh12o\nf13u\nkgdco" }, { "input": "20\nlkpmx\nkovxmxorlgwaomlswjxlpnbvltfv\nhykasjxqyjrmybejnmeumzha\ntuevlumpqbbhbww\nqgqsphvrmupxxc\ntrissbaf\nqfgrlinkzvzqdryckaizutd\nzzqtoaxkvwoscyx\noswytrlnhpjvvnwookx\nlpuzqgec\ngyzqfwxggtvpjhzmzmdw\nrlxjgmvdftvrmvbdwudra\nvsntnjpepnvdaxiporggmglhagv\nxlvcqkqgcrbgtgglj\nlyxwxbiszyhlsrgzeedzprbmcpduvq\nyrmqqvrkqskqukzqrwukpsifgtdc\nxpuohcsjhhuhvr\nvvlfrlxpvqejngwrbfbpmqeirxlw\nsvmasocxdvadmaxtrpakysmeaympy\nyuflqboqfdt", "output": "lkpmx\nk26v\nh22a\nt13w\nq12c\ntrissbaf\nq21d\nz13x\no17x\nlpuzqgec\ng18w\nr19a\nv25v\nx15j\nl28q\ny26c\nx12r\nv26w\ns27y\ny9t" }, { "input": "100\nm\nz\ns\nv\nd\nr\nv\ny\ny\ne\np\nt\nc\na\nn\nm\np\ng\ni\nj\nc\na\nb\nq\ne\nn\nv\no\nk\nx\nf\ni\nl\na\nq\nr\nu\nb\ns\nl\nc\nl\ne\nv\nj\nm\nx\nb\na\nq\nb\na\nf\nj\nv\nm\nq\nc\nt\nt\nn\nx\no\ny\nr\nu\nh\nm\nj\np\nj\nq\nz\ns\nj\no\ng\nc\nm\nn\no\nm\nr\no\ns\nt\nh\nr\np\nk\nb\nz\ng\no\nc\nc\nz\nz\ng\nr", "output": "m\nz\ns\nv\nd\nr\nv\ny\ny\ne\np\nt\nc\na\nn\nm\np\ng\ni\nj\nc\na\nb\nq\ne\nn\nv\no\nk\nx\nf\ni\nl\na\nq\nr\nu\nb\ns\nl\nc\nl\ne\nv\nj\nm\nx\nb\na\nq\nb\na\nf\nj\nv\nm\nq\nc\nt\nt\nn\nx\no\ny\nr\nu\nh\nm\nj\np\nj\nq\nz\ns\nj\no\ng\nc\nm\nn\no\nm\nr\no\ns\nt\nh\nr\np\nk\nb\nz\ng\no\nc\nc\nz\nz\ng\nr" } ]
1,671,791,602
2,147,483,647
Python 3
OK
TESTS
20
46
0
a=int(input()) for i in range(a): x=str(input()) if(len(x)>10): print(x[0]+str(len(x)-2)+x[-1]) else: print(x)
Title: Way Too Long Words Time Limit: 1 seconds Memory Limit: 256 megabytes Problem Description: Sometimes some words like "localization" or "internationalization" are so long that writing them many times in one text is quite tiresome. Let's consider a word too long, if its length is strictly more than 10 characters. All too long words should be replaced with a special abbreviation. This abbreviation is made like this: we write down the first and the last letter of a word and between them we write the number of letters between the first and the last letters. That number is in decimal system and doesn't contain any leading zeroes. Thus, "localization" will be spelt as "l10n", and "internationalization» will be spelt as "i18n". You are suggested to automatize the process of changing the words with abbreviations. At that all too long words should be replaced by the abbreviation and the words that are not too long should not undergo any changes. Input Specification: The first line contains an integer *n* (1<=≤<=*n*<=≤<=100). Each of the following *n* lines contains one word. All the words consist of lowercase Latin letters and possess the lengths of from 1 to 100 characters. Output Specification: Print *n* lines. The *i*-th line should contain the result of replacing of the *i*-th word from the input data. Demo Input: ['4\nword\nlocalization\ninternationalization\npneumonoultramicroscopicsilicovolcanoconiosis\n'] Demo Output: ['word\nl10n\ni18n\np43s\n'] Note: none
```python a=int(input()) for i in range(a): x=str(input()) if(len(x)>10): print(x[0]+str(len(x)-2)+x[-1]) else: print(x) ```
3.977
133
A
HQ9+
PROGRAMMING
900
[ "implementation" ]
null
null
HQ9+ is a joke programming language which has only four one-character instructions: - "H" prints "Hello, World!",- "Q" prints the source code of the program itself,- "9" prints the lyrics of "99 Bottles of Beer" song, - "+" increments the value stored in the internal accumulator. Instructions "H" and "Q" are case-sensitive and must be uppercase. The characters of the program which are not instructions are ignored. You are given a program written in HQ9+. You have to figure out whether executing this program will produce any output.
The input will consist of a single line *p* which will give a program in HQ9+. String *p* will contain between 1 and 100 characters, inclusive. ASCII-code of each character of *p* will be between 33 (exclamation mark) and 126 (tilde), inclusive.
Output "YES", if executing the program will produce any output, and "NO" otherwise.
[ "Hi!\n", "Codeforces\n" ]
[ "YES\n", "NO\n" ]
In the first case the program contains only one instruction — "H", which prints "Hello, World!". In the second case none of the program characters are language instructions.
500
[ { "input": "Hi!", "output": "YES" }, { "input": "Codeforces", "output": "NO" }, { "input": "a+b=c", "output": "NO" }, { "input": "hq-lowercase", "output": "NO" }, { "input": "Q", "output": "YES" }, { "input": "9", "output": "YES" }, { "input": "H", "output": "YES" }, { "input": "+", "output": "NO" }, { "input": "~", "output": "NO" }, { "input": "dEHsbM'gS[\\brZ_dpjXw8f?L[4E\"s4Zc9*(,j:>p$}m7HD[_9nOWQ\\uvq2mHWR", "output": "YES" }, { "input": "tt6l=RHOfStm.;Qd$-}zDes*E,.F7qn5-b%HC", "output": "YES" }, { "input": "@F%K2=%RyL/", "output": "NO" }, { "input": "juq)k(FT.^G=G\\zcqnO\"uJIE1_]KFH9S=1c\"mJ;F9F)%>&.WOdp09+k`Yc6}\"6xw,Aos:M\\_^^:xBb[CcsHm?J", "output": "YES" }, { "input": "6G_\"Fq#<AWyHG=Rci1t%#Jc#x<Fpg'N@t%F=``YO7\\Zd;6PkMe<#91YgzTC)", "output": "YES" }, { "input": "Fvg_~wC>SO4lF}*c`Q;mII9E{4.QodbqN]C", "output": "YES" }, { "input": "p-UXsbd&f", "output": "NO" }, { "input": "<]D7NMA)yZe=`?RbP5lsa.l_Mg^V:\"-0x+$3c,q&L%18Ku<HcA\\s!^OQblk^x{35S'>yz8cKgVHWZ]kV0>_", "output": "YES" }, { "input": "f.20)8b+.R}Gy!DbHU3v(.(=Q^`z[_BaQ}eO=C1IK;b2GkD\\{\\Bf\"!#qh]", "output": "YES" }, { "input": "}do5RU<(w<q[\"-NR)IAH_HyiD{", "output": "YES" }, { "input": "Iy^.,Aw*,5+f;l@Q;jLK'G5H-r1Pfmx?ei~`CjMmUe{K:lS9cu4ay8rqRh-W?Gqv!e-j*U)!Mzn{E8B6%~aSZ~iQ_QwlC9_cX(o8", "output": "YES" }, { "input": "sKLje,:q>-D,;NvQ3,qN3-N&tPx0nL/,>Ca|z\"k2S{NF7btLa3_TyXG4XZ:`(t&\"'^M|@qObZxv", "output": "YES" }, { "input": "%z:c@1ZsQ@\\6U/NQ+M9R>,$bwG`U1+C\\18^:S},;kw!&4r|z`", "output": "YES" }, { "input": "OKBB5z7ud81[Tn@P\"nDUd,>@", "output": "NO" }, { "input": "y{0;neX]w0IenPvPx0iXp+X|IzLZZaRzBJ>q~LhMhD$x-^GDwl;,a'<bAqH8QrFwbK@oi?I'W.bZ]MlIQ/x(0YzbTH^l.)]0Bv", "output": "YES" }, { "input": "EL|xIP5_+Caon1hPpQ0[8+r@LX4;b?gMy>;/WH)pf@Ur*TiXu*e}b-*%acUA~A?>MDz#!\\Uh", "output": "YES" }, { "input": "UbkW=UVb>;z6)p@Phr;^Dn.|5O{_i||:Rv|KJ_ay~V(S&Jp", "output": "NO" }, { "input": "!3YPv@2JQ44@)R2O_4`GO", "output": "YES" }, { "input": "Kba/Q,SL~FMd)3hOWU'Jum{9\"$Ld4:GW}D]%tr@G{hpG:PV5-c'VIZ~m/6|3I?_4*1luKnOp`%p|0H{[|Y1A~4-ZdX,Rw2[\\", "output": "YES" }, { "input": "NRN*=v>;oU7[acMIJn*n^bWm!cm3#E7Efr>{g-8bl\"DN4~_=f?[T;~Fq#&)aXq%</GcTJD^e$@Extm[e\"C)q_L", "output": "NO" }, { "input": "y#<fv{_=$MP!{D%I\\1OqjaqKh[pqE$KvYL<9@*V'j8uH0/gQdA'G;&y4Cv6&", "output": "YES" }, { "input": "+SE_Pg<?7Fh,z&uITQut2a-mk8X8La`c2A}", "output": "YES" }, { "input": "Uh3>ER](J", "output": "NO" }, { "input": "!:!{~=9*\\P;Z6F?HC5GadFz)>k*=u|+\"Cm]ICTmB!`L{&oS/z6b~#Snbp/^\\Q>XWU-vY+/dP.7S=-#&whS@,", "output": "YES" }, { "input": "KimtYBZp+ISeO(uH;UldoE6eAcp|9u?SzGZd6j-e}[}u#e[Cx8.qgY]$2!", "output": "YES" }, { "input": "[:[SN-{r>[l+OggH3v3g{EPC*@YBATT@", "output": "YES" }, { "input": "'jdL(vX", "output": "NO" }, { "input": "Q;R+aay]cL?Zh*uG\"YcmO*@Dts*Gjp}D~M7Z96+<4?9I3aH~0qNdO(RmyRy=ci,s8qD_kwj;QHFzD|5,5", "output": "YES" }, { "input": "{Q@#<LU_v^qdh%gGxz*pu)Y\"]k-l-N30WAxvp2IE3:jD0Wi4H/xWPH&s", "output": "YES" }, { "input": "~@Gb(S&N$mBuBUMAky-z^{5VwLNTzYg|ZUZncL@ahS?K*As<$iNUARM3r43J'jJB)$ujfPAq\"G<S9flGyakZg!2Z.-NJ|2{F>]", "output": "YES" }, { "input": "Jp5Aa>aP6fZ!\\6%A}<S}j{O4`C6y$8|i3IW,WHy&\"ioE&7zP\"'xHAY;:x%@SnS]Mr{R|})gU", "output": "YES" }, { "input": "ZA#:U)$RI^sE\\vuAt]x\"2zipI!}YEu2<j$:H0_9/~eB?#->", "output": "YES" }, { "input": "&ppw0._:\\p-PuWM@l}%%=", "output": "NO" }, { "input": "P(^pix\"=oiEZu8?@d@J(I`Xp5TN^T3\\Z7P5\"ZrvZ{2Fwz3g-8`U!)(1$a<g+9Q|COhDoH;HwFY02Pa|ZGp$/WZBR=>6Jg!yr", "output": "YES" }, { "input": "`WfODc\\?#ax~1xu@[ao+o_rN|L7%v,p,nDv>3+6cy.]q3)+A6b!q*Hc+#.t4f~vhUa~$^q", "output": "YES" }, { "input": ",)TH9N}'6t2+0Yg?S#6/{_.,!)9d}h'wG|sY&'Ul4D0l0", "output": "YES" }, { "input": "VXB&r9Z)IlKOJ:??KDA", "output": "YES" }, { "input": "\")1cL>{o\\dcYJzu?CefyN^bGRviOH&P7rJS3PT4:0V3F)%\\}L=AJouYsj_>j2|7^1NWu*%NbOP>ngv-ls<;b-4Sd3Na0R", "output": "YES" }, { "input": "2Y}\\A)>row{~c[g>:'.|ZC8%UTQ/jcdhK%6O)QRC.kd@%y}LJYk=V{G5pQK/yKJ%{G3C", "output": "YES" }, { "input": "O.&=qt(`z(", "output": "NO" }, { "input": "_^r6fyIc/~~;>l%9?aVEi7-{=,[<aMiB'-scSg$$|\"jAzY0N>QkHHGBZj2c\"=fhRlWd5;5K|GgU?7h]!;wl@", "output": "YES" }, { "input": "+/`sAd&eB29E=Nu87${.u6GY@$^a$,}s^!p!F}B-z8<<wORb<S7;HM1a,gp", "output": "YES" }, { "input": "U_ilyOGMT+QiW/M8/D(1=6a7)_FA,h4`8", "output": "YES" }, { "input": "!0WKT:$O", "output": "NO" }, { "input": "1EE*I%EQz6$~pPu7|(r7nyPQt4uGU@]~H'4uII?b1_Wn)K?ZRHrr0z&Kr;}aO3<mN=3:{}QgPxI|Ncm4#)", "output": "YES" }, { "input": "[u3\"$+!:/.<Dp1M7tH}:zxjt],^kv}qP;y12\"`^'/u*h%AFmPJ>e1#Yly", "output": "YES" }, { "input": "'F!_]tB<A&UO+p?7liE>(x&RFgG2~\\(", "output": "NO" }, { "input": "Qv)X8", "output": "YES" }, { "input": "aGv7,J@&g1(}E3g6[LuDZwZl2<v7IwQA%\"R(?ouBD>_=y\"3Kf%^>vON<a^T\\G^ootgE@whWmZo=[ex|F", "output": "YES" }, { "input": "e{}2vQ+/r@p0}cLKNe4MCk", "output": "YES" }, { "input": "mzbmweyydiadtlcouegmdbyfwurpwbpuvhifnuapwyndmhtqvkgkbhtytszotwflegsjzzszfwtzfpnscguemwrczqxycivdqnkH", "output": "YES" }, { "input": "Qzbmweyydiadtlcouegmdbyfwurpwbpuvhifnuapwyndmhtqvkgkbhtytszotwflegsjzzszfwtzfpnscguemwrczqxycivdqnky", "output": "YES" }, { "input": "mzbmweyydiadtlcouegmdbyfwurpwb9uvhifnuapwyndmhtqvkgkbhtytszotwflegsjzzszfwtzfpnscguemwrczqxycivdqnky", "output": "YES" }, { "input": "1H1", "output": "YES" }, { "input": "+Q", "output": "YES" }, { "input": "1ab", "output": "NO" }, { "input": "!", "output": "NO" }, { "input": "0+", "output": "NO" }, { "input": "+H", "output": "YES" }, { "input": "cH", "output": "YES" }, { "input": "+8", "output": "NO" }, { "input": "8+", "output": "NO" }, { "input": "++++++++++++++++++++++++++", "output": "NO" }, { "input": "(+)", "output": "NO" }, { "input": "H+", "output": "YES" }, { "input": "a!", "output": "NO" }, { "input": "++++++++++++++", "output": "NO" }, { "input": "+++++++++++++++++++++++++++++++++++++++++++++++++++++++++", "output": "NO" }, { "input": "8", "output": "NO" }, { "input": "3", "output": "NO" }, { "input": "HQ9", "output": "YES" }, { "input": "+++H", "output": "YES" }, { "input": "++++++++++", "output": "NO" }, { "input": "HHHHHHH", "output": "YES" }, { "input": "abacabaH", "output": "YES" }, { "input": "+G", "output": "NO" } ]
1,692,068,867
2,147,483,647
Python 3
OK
TESTS
85
92
0
p = input() instructions = set("HQ9") for char in p: if char in instructions: print("YES") break else: print("NO")
Title: HQ9+ Time Limit: None seconds Memory Limit: None megabytes Problem Description: HQ9+ is a joke programming language which has only four one-character instructions: - "H" prints "Hello, World!",- "Q" prints the source code of the program itself,- "9" prints the lyrics of "99 Bottles of Beer" song, - "+" increments the value stored in the internal accumulator. Instructions "H" and "Q" are case-sensitive and must be uppercase. The characters of the program which are not instructions are ignored. You are given a program written in HQ9+. You have to figure out whether executing this program will produce any output. Input Specification: The input will consist of a single line *p* which will give a program in HQ9+. String *p* will contain between 1 and 100 characters, inclusive. ASCII-code of each character of *p* will be between 33 (exclamation mark) and 126 (tilde), inclusive. Output Specification: Output "YES", if executing the program will produce any output, and "NO" otherwise. Demo Input: ['Hi!\n', 'Codeforces\n'] Demo Output: ['YES\n', 'NO\n'] Note: In the first case the program contains only one instruction — "H", which prints "Hello, World!". In the second case none of the program characters are language instructions.
```python p = input() instructions = set("HQ9") for char in p: if char in instructions: print("YES") break else: print("NO") ```
3
835
A
Key races
PROGRAMMING
800
[ "math" ]
null
null
Two boys decided to compete in text typing on the site "Key races". During the competition, they have to type a text consisting of *s* characters. The first participant types one character in *v*1 milliseconds and has ping *t*1 milliseconds. The second participant types one character in *v*2 milliseconds and has ping *t*2 milliseconds. If connection ping (delay) is *t* milliseconds, the competition passes for a participant as follows: 1. Exactly after *t* milliseconds after the start of the competition the participant receives the text to be entered. 1. Right after that he starts to type it. 1. Exactly *t* milliseconds after he ends typing all the text, the site receives information about it. The winner is the participant whose information on the success comes earlier. If the information comes from both participants at the same time, it is considered that there is a draw. Given the length of the text and the information about participants, determine the result of the game.
The first line contains five integers *s*, *v*1, *v*2, *t*1, *t*2 (1<=≤<=*s*,<=*v*1,<=*v*2,<=*t*1,<=*t*2<=≤<=1000) — the number of characters in the text, the time of typing one character for the first participant, the time of typing one character for the the second participant, the ping of the first participant and the ping of the second participant.
If the first participant wins, print "First". If the second participant wins, print "Second". In case of a draw print "Friendship".
[ "5 1 2 1 2\n", "3 3 1 1 1\n", "4 5 3 1 5\n" ]
[ "First\n", "Second\n", "Friendship\n" ]
In the first example, information on the success of the first participant comes in 7 milliseconds, of the second participant — in 14 milliseconds. So, the first wins. In the second example, information on the success of the first participant comes in 11 milliseconds, of the second participant — in 5 milliseconds. So, the second wins. In the third example, information on the success of the first participant comes in 22 milliseconds, of the second participant — in 22 milliseconds. So, it is be a draw.
500
[ { "input": "5 1 2 1 2", "output": "First" }, { "input": "3 3 1 1 1", "output": "Second" }, { "input": "4 5 3 1 5", "output": "Friendship" }, { "input": "1000 1000 1000 1000 1000", "output": "Friendship" }, { "input": "1 1 1 1 1", "output": "Friendship" }, { "input": "8 8 1 1 1", "output": "Second" }, { "input": "15 14 32 65 28", "output": "First" }, { "input": "894 197 325 232 902", "output": "First" }, { "input": "1 2 8 8 5", "output": "Friendship" }, { "input": "37 261 207 1 1000", "output": "Friendship" }, { "input": "29 344 406 900 1", "output": "Friendship" }, { "input": "1 2 8 9 8", "output": "First" }, { "input": "2 9 8 8 9", "output": "Friendship" }, { "input": "213 480 811 134 745", "output": "First" }, { "input": "2 313 856 964 421", "output": "Friendship" }, { "input": "1 10 2 6 10", "output": "Friendship" }, { "input": "2 7 6 2 3", "output": "Friendship" }, { "input": "637 324 69 612 998", "output": "Second" }, { "input": "13 849 819 723 918", "output": "Friendship" }, { "input": "9 5 7 8 7", "output": "First" }, { "input": "6 5 7 10 4", "output": "Friendship" }, { "input": "61 464 623 89 548", "output": "First" }, { "input": "641 31 29 161 802", "output": "Friendship" }, { "input": "3 3 1 6 9", "output": "Friendship" }, { "input": "2 3 9 8 2", "output": "Friendship" }, { "input": "485 117 368 567 609", "output": "First" }, { "input": "4 202 512 995 375", "output": "Friendship" }, { "input": "424 41 41 909 909", "output": "Friendship" }, { "input": "884 913 263 641 265", "output": "Second" }, { "input": "12 462 8 311 327", "output": "Second" }, { "input": "436 306 266 493 580", "output": "Second" }, { "input": "69 1 2 1 2", "output": "First" } ]
1,586,874,822
2,147,483,647
Python 3
OK
TESTS
32
108
0
s,v1,v2,t1,t2=map(int,input().split()) if 2*t1+v1*s > 2*t2+v2*s: print("Second") elif 2*t1+v1*s < 2*t2+v2*s: print("First") else: print("Friendship")
Title: Key races Time Limit: None seconds Memory Limit: None megabytes Problem Description: Two boys decided to compete in text typing on the site "Key races". During the competition, they have to type a text consisting of *s* characters. The first participant types one character in *v*1 milliseconds and has ping *t*1 milliseconds. The second participant types one character in *v*2 milliseconds and has ping *t*2 milliseconds. If connection ping (delay) is *t* milliseconds, the competition passes for a participant as follows: 1. Exactly after *t* milliseconds after the start of the competition the participant receives the text to be entered. 1. Right after that he starts to type it. 1. Exactly *t* milliseconds after he ends typing all the text, the site receives information about it. The winner is the participant whose information on the success comes earlier. If the information comes from both participants at the same time, it is considered that there is a draw. Given the length of the text and the information about participants, determine the result of the game. Input Specification: The first line contains five integers *s*, *v*1, *v*2, *t*1, *t*2 (1<=≤<=*s*,<=*v*1,<=*v*2,<=*t*1,<=*t*2<=≤<=1000) — the number of characters in the text, the time of typing one character for the first participant, the time of typing one character for the the second participant, the ping of the first participant and the ping of the second participant. Output Specification: If the first participant wins, print "First". If the second participant wins, print "Second". In case of a draw print "Friendship". Demo Input: ['5 1 2 1 2\n', '3 3 1 1 1\n', '4 5 3 1 5\n'] Demo Output: ['First\n', 'Second\n', 'Friendship\n'] Note: In the first example, information on the success of the first participant comes in 7 milliseconds, of the second participant — in 14 milliseconds. So, the first wins. In the second example, information on the success of the first participant comes in 11 milliseconds, of the second participant — in 5 milliseconds. So, the second wins. In the third example, information on the success of the first participant comes in 22 milliseconds, of the second participant — in 22 milliseconds. So, it is be a draw.
```python s,v1,v2,t1,t2=map(int,input().split()) if 2*t1+v1*s > 2*t2+v2*s: print("Second") elif 2*t1+v1*s < 2*t2+v2*s: print("First") else: print("Friendship") ```
3
104
A
Blackjack
PROGRAMMING
800
[ "implementation" ]
A. Blackjack
2
256
One rainy gloomy evening when all modules hid in the nearby cafes to drink hot energetic cocktails, the Hexadecimal virus decided to fly over the Mainframe to look for a Great Idea. And she has found one! Why not make her own Codeforces, with blackjack and other really cool stuff? Many people will surely be willing to visit this splendid shrine of high culture. In Mainframe a standard pack of 52 cards is used to play blackjack. The pack contains cards of 13 values: 2, 3, 4, 5, 6, 7, 8, 9, 10, jacks, queens, kings and aces. Each value also exists in one of four suits: hearts, diamonds, clubs and spades. Also, each card earns some value in points assigned to it: cards with value from two to ten earn from 2 to 10 points, correspondingly. An ace can either earn 1 or 11, whatever the player wishes. The picture cards (king, queen and jack) earn 10 points. The number of points a card earns does not depend on the suit. The rules of the game are very simple. The player gets two cards, if the sum of points of those cards equals *n*, then the player wins, otherwise the player loses. The player has already got the first card, it's the queen of spades. To evaluate chances for victory, you should determine how many ways there are to get the second card so that the sum of points exactly equals *n*.
The only line contains *n* (1<=≤<=*n*<=≤<=25) — the required sum of points.
Print the numbers of ways to get the second card in the required way if the first card is the queen of spades.
[ "12\n", "20\n", "10\n" ]
[ "4", "15", "0" ]
In the first sample only four two's of different suits can earn the required sum of points. In the second sample we can use all tens, jacks, queens and kings; overall it's 15 cards, as the queen of spades (as any other card) is only present once in the pack of cards and it's already in use. In the third sample there is no card, that would add a zero to the current ten points.
500
[ { "input": "12", "output": "4" }, { "input": "20", "output": "15" }, { "input": "10", "output": "0" }, { "input": "11", "output": "4" }, { "input": "15", "output": "4" }, { "input": "18", "output": "4" }, { "input": "25", "output": "0" }, { "input": "22", "output": "0" }, { "input": "1", "output": "0" }, { "input": "2", "output": "0" }, { "input": "3", "output": "0" }, { "input": "4", "output": "0" }, { "input": "5", "output": "0" }, { "input": "6", "output": "0" }, { "input": "7", "output": "0" }, { "input": "8", "output": "0" }, { "input": "9", "output": "0" }, { "input": "13", "output": "4" }, { "input": "14", "output": "4" }, { "input": "16", "output": "4" }, { "input": "17", "output": "4" }, { "input": "19", "output": "4" }, { "input": "21", "output": "4" }, { "input": "23", "output": "0" }, { "input": "24", "output": "0" } ]
1,415,379,706
2,147,483,647
Python 3
OK
TESTS
25
124
0
import sys import math n = int(sys.stdin.readline()) if(n - 10 == 10): print(15) elif(n - 10 >= 1 and n - 10 <= 11): print(4) else: print(0)
Title: Blackjack Time Limit: 2 seconds Memory Limit: 256 megabytes Problem Description: One rainy gloomy evening when all modules hid in the nearby cafes to drink hot energetic cocktails, the Hexadecimal virus decided to fly over the Mainframe to look for a Great Idea. And she has found one! Why not make her own Codeforces, with blackjack and other really cool stuff? Many people will surely be willing to visit this splendid shrine of high culture. In Mainframe a standard pack of 52 cards is used to play blackjack. The pack contains cards of 13 values: 2, 3, 4, 5, 6, 7, 8, 9, 10, jacks, queens, kings and aces. Each value also exists in one of four suits: hearts, diamonds, clubs and spades. Also, each card earns some value in points assigned to it: cards with value from two to ten earn from 2 to 10 points, correspondingly. An ace can either earn 1 or 11, whatever the player wishes. The picture cards (king, queen and jack) earn 10 points. The number of points a card earns does not depend on the suit. The rules of the game are very simple. The player gets two cards, if the sum of points of those cards equals *n*, then the player wins, otherwise the player loses. The player has already got the first card, it's the queen of spades. To evaluate chances for victory, you should determine how many ways there are to get the second card so that the sum of points exactly equals *n*. Input Specification: The only line contains *n* (1<=≤<=*n*<=≤<=25) — the required sum of points. Output Specification: Print the numbers of ways to get the second card in the required way if the first card is the queen of spades. Demo Input: ['12\n', '20\n', '10\n'] Demo Output: ['4', '15', '0'] Note: In the first sample only four two's of different suits can earn the required sum of points. In the second sample we can use all tens, jacks, queens and kings; overall it's 15 cards, as the queen of spades (as any other card) is only present once in the pack of cards and it's already in use. In the third sample there is no card, that would add a zero to the current ten points.
```python import sys import math n = int(sys.stdin.readline()) if(n - 10 == 10): print(15) elif(n - 10 >= 1 and n - 10 <= 11): print(4) else: print(0) ```
3.969
988
A
Diverse Team
PROGRAMMING
800
[ "brute force", "implementation" ]
null
null
There are $n$ students in a school class, the rating of the $i$-th student on Codehorses is $a_i$. You have to form a team consisting of $k$ students ($1 \le k \le n$) such that the ratings of all team members are distinct. If it is impossible to form a suitable team, print "NO" (without quotes). Otherwise print "YES", and then print $k$ distinct numbers which should be the indices of students in the team you form. If there are multiple answers, print any of them.
The first line contains two integers $n$ and $k$ ($1 \le k \le n \le 100$) — the number of students and the size of the team you have to form. The second line contains $n$ integers $a_1, a_2, \dots, a_n$ ($1 \le a_i \le 100$), where $a_i$ is the rating of $i$-th student.
If it is impossible to form a suitable team, print "NO" (without quotes). Otherwise print "YES", and then print $k$ distinct integers from $1$ to $n$ which should be the indices of students in the team you form. All the ratings of the students in the team should be distinct. You may print the indices in any order. If there are multiple answers, print any of them. Assume that the students are numbered from $1$ to $n$.
[ "5 3\n15 13 15 15 12\n", "5 4\n15 13 15 15 12\n", "4 4\n20 10 40 30\n" ]
[ "YES\n1 2 5 \n", "NO\n", "YES\n1 2 3 4 \n" ]
All possible answers for the first example: - {1 2 5} - {2 3 5} - {2 4 5} Note that the order does not matter.
0
[ { "input": "5 3\n15 13 15 15 12", "output": "YES\n1 2 5 " }, { "input": "5 4\n15 13 15 15 12", "output": "NO" }, { "input": "4 4\n20 10 40 30", "output": "YES\n1 2 3 4 " }, { "input": "1 1\n1", "output": "YES\n1 " }, { "input": "100 53\n16 17 1 2 27 5 9 9 53 24 17 33 35 24 20 48 56 73 12 14 39 55 58 13 59 73 29 26 40 33 22 29 34 22 55 38 63 66 36 13 60 42 10 15 21 9 11 5 23 37 79 47 26 3 79 53 44 8 71 75 42 11 34 39 79 33 10 26 23 23 17 14 54 41 60 31 83 5 45 4 14 35 6 60 28 48 23 18 60 36 21 28 7 34 9 25 52 43 54 19", "output": "YES\n1 2 3 4 5 6 7 9 10 12 13 15 16 17 18 19 20 21 22 23 24 25 27 28 29 31 33 36 37 38 39 41 42 43 44 45 47 49 50 51 52 54 57 58 59 60 73 74 76 77 79 80 83 " }, { "input": "2 2\n100 100", "output": "NO" }, { "input": "2 2\n100 99", "output": "YES\n1 2 " }, { "input": "100 100\n63 100 75 32 53 24 73 98 76 15 70 48 8 81 88 58 95 78 27 92 14 16 72 43 46 39 66 38 64 42 59 9 22 51 4 6 10 94 28 99 68 80 35 50 45 20 47 7 30 26 49 91 77 19 96 57 65 1 11 13 31 12 82 87 93 34 62 3 21 79 56 41 89 18 44 23 74 86 2 33 69 36 61 67 25 83 5 84 90 37 40 29 97 60 52 55 54 71 17 85", "output": "YES\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 " }, { "input": "100 41\n54 16 42 3 45 6 9 72 100 13 24 57 35 5 89 13 97 27 43 9 73 89 48 16 48 55 18 15 55 28 30 6 18 41 100 61 9 42 35 54 57 25 73 15 42 54 49 5 72 48 30 55 4 43 94 5 60 92 93 23 89 75 53 92 74 93 89 28 69 6 3 49 15 28 49 57 54 55 30 57 69 18 89 6 25 23 93 74 30 13 87 53 6 42 4 54 60 30 4 35", "output": "NO" }, { "input": "100 2\n70 64 70 32 70 64 32 70 64 32 32 64 70 64 64 32 64 64 64 70 70 64 64 64 64 70 32 64 70 64 32 70 70 70 64 70 64 70 64 32 70 32 70 64 64 64 32 70 64 70 70 32 70 32 32 32 70 32 70 32 64 64 70 32 32 64 70 64 32 32 64 64 32 32 70 70 32 70 32 64 32 70 64 64 32 64 32 64 70 32 70 32 70 64 64 64 70 70 64 70", "output": "YES\n1 2 " } ]
1,652,665,782
2,147,483,647
PyPy 3-64
OK
TESTS
10
62
28,467,200
n,k = (map(int,input().split())) arr = list(map(int,input().split())) s = set(arr) if k>len(s) : print("NO") else : dif = [] ans="" i = 0 while len(dif)<k : while i<n : if arr[i] not in dif : dif.append(arr[i]) ans+=str(i+1)+" " break i+=1 print("YES") print(ans)
Title: Diverse Team Time Limit: None seconds Memory Limit: None megabytes Problem Description: There are $n$ students in a school class, the rating of the $i$-th student on Codehorses is $a_i$. You have to form a team consisting of $k$ students ($1 \le k \le n$) such that the ratings of all team members are distinct. If it is impossible to form a suitable team, print "NO" (without quotes). Otherwise print "YES", and then print $k$ distinct numbers which should be the indices of students in the team you form. If there are multiple answers, print any of them. Input Specification: The first line contains two integers $n$ and $k$ ($1 \le k \le n \le 100$) — the number of students and the size of the team you have to form. The second line contains $n$ integers $a_1, a_2, \dots, a_n$ ($1 \le a_i \le 100$), where $a_i$ is the rating of $i$-th student. Output Specification: If it is impossible to form a suitable team, print "NO" (without quotes). Otherwise print "YES", and then print $k$ distinct integers from $1$ to $n$ which should be the indices of students in the team you form. All the ratings of the students in the team should be distinct. You may print the indices in any order. If there are multiple answers, print any of them. Assume that the students are numbered from $1$ to $n$. Demo Input: ['5 3\n15 13 15 15 12\n', '5 4\n15 13 15 15 12\n', '4 4\n20 10 40 30\n'] Demo Output: ['YES\n1 2 5 \n', 'NO\n', 'YES\n1 2 3 4 \n'] Note: All possible answers for the first example: - {1 2 5} - {2 3 5} - {2 4 5} Note that the order does not matter.
```python n,k = (map(int,input().split())) arr = list(map(int,input().split())) s = set(arr) if k>len(s) : print("NO") else : dif = [] ans="" i = 0 while len(dif)<k : while i<n : if arr[i] not in dif : dif.append(arr[i]) ans+=str(i+1)+" " break i+=1 print("YES") print(ans) ```
3
230
A
Dragons
PROGRAMMING
1,000
[ "greedy", "sortings" ]
null
null
Kirito is stuck on a level of the MMORPG he is playing now. To move on in the game, he's got to defeat all *n* dragons that live on this level. Kirito and the dragons have strength, which is represented by an integer. In the duel between two opponents the duel's outcome is determined by their strength. Initially, Kirito's strength equals *s*. If Kirito starts duelling with the *i*-th (1<=≤<=*i*<=≤<=*n*) dragon and Kirito's strength is not greater than the dragon's strength *x**i*, then Kirito loses the duel and dies. But if Kirito's strength is greater than the dragon's strength, then he defeats the dragon and gets a bonus strength increase by *y**i*. Kirito can fight the dragons in any order. Determine whether he can move on to the next level of the game, that is, defeat all dragons without a single loss.
The first line contains two space-separated integers *s* and *n* (1<=≤<=*s*<=≤<=104, 1<=≤<=*n*<=≤<=103). Then *n* lines follow: the *i*-th line contains space-separated integers *x**i* and *y**i* (1<=≤<=*x**i*<=≤<=104, 0<=≤<=*y**i*<=≤<=104) — the *i*-th dragon's strength and the bonus for defeating it.
On a single line print "YES" (without the quotes), if Kirito can move on to the next level and print "NO" (without the quotes), if he can't.
[ "2 2\n1 99\n100 0\n", "10 1\n100 100\n" ]
[ "YES\n", "NO\n" ]
In the first sample Kirito's strength initially equals 2. As the first dragon's strength is less than 2, Kirito can fight it and defeat it. After that he gets the bonus and his strength increases to 2 + 99 = 101. Now he can defeat the second dragon and move on to the next level. In the second sample Kirito's strength is too small to defeat the only dragon and win.
500
[ { "input": "2 2\n1 99\n100 0", "output": "YES" }, { "input": "10 1\n100 100", "output": "NO" }, { "input": "123 2\n78 10\n130 0", "output": "YES" }, { "input": "999 2\n1010 10\n67 89", "output": "YES" }, { "input": "2 5\n5 1\n2 1\n3 1\n1 1\n4 1", "output": "YES" }, { "input": "2 2\n3 5\n1 2", "output": "YES" }, { "input": "1 2\n1 0\n1 0", "output": "NO" }, { "input": "5 10\n20 1\n4 3\n5 1\n100 1\n4 2\n101 1\n10 0\n10 2\n17 3\n12 84", "output": "YES" }, { "input": "2 2\n1 98\n100 0", "output": "NO" }, { "input": "2 2\n1 2\n3 5", "output": "YES" }, { "input": "5 3\n13 20\n3 10\n15 5", "output": "YES" }, { "input": "2 5\n1 1\n2 1\n3 1\n4 1\n5 1", "output": "YES" }, { "input": "3 3\n1 1\n1 2\n4 0", "output": "YES" }, { "input": "10 4\n20 1\n3 5\n2 4\n1 3", "output": "YES" }, { "input": "10 1\n1 1", "output": "YES" }, { "input": "4 1\n100 1000", "output": "NO" }, { "input": "5 1\n6 7", "output": "NO" }, { "input": "10 1\n10 10", "output": "NO" }, { "input": "6 2\n496 0\n28 8128", "output": "NO" }, { "input": "4 2\n2 1\n10 3", "output": "NO" }, { "input": "11 2\n22 0\n33 0", "output": "NO" }, { "input": "1 2\n100 1\n100 1", "output": "NO" }, { "input": "10 3\n12 0\n13 0\n14 0", "output": "NO" }, { "input": "50 3\n39 0\n38 0\n37 0", "output": "YES" }, { "input": "14 3\n1 5\n1 6\n1 7", "output": "YES" }, { "input": "1 3\n1 10\n1 11\n1 9", "output": "NO" }, { "input": "10 10\n2 10\n3 10\n4 10\n2 20\n3 20\n3 20\n100 50\n100 30\n150 30\n200 10", "output": "NO" }, { "input": "9983 34\n6626 5976\n4448 3568\n2794 2309\n3741 8806\n4754 129\n2780 9275\n5785 9243\n3915 6159\n2609 4331\n238 6756\n6987 3887\n3384 5711\n4349 5563\n1135 4483\n9151 1584\n1500 766\n1608 4440\n7768 5005\n7205 2360\n9088 2933\n3923 7814\n7538 9372\n7504 165\n5277 1636\n2061 4384\n7668 1422\n9582 2121\n5483 7967\n487 2944\n7432 5794\n8208 8970\n5747 3800\n4322 3920\n8261 9319", "output": "YES" }, { "input": "1 10\n8 8\n54 3\n1 8\n26 3\n16 1\n29 9\n38 10\n57 8\n48 6\n17 9", "output": "NO" }, { "input": "5 10\n7 0\n7 0\n10 0\n10 0\n7 2\n4 2\n9 0\n6 1\n7 0\n7 0", "output": "NO" }, { "input": "2 3\n1 1\n1 10\n17 2", "output": "NO" }, { "input": "100 5\n99 100\n199 1\n199 1\n199 1\n202 1", "output": "YES" }, { "input": "1 1\n10000 1", "output": "NO" } ]
1,699,473,791
2,147,483,647
Python 3
OK
TESTS
54
248
0
def bubbleSort(arr , bonus): n = len(arr) # Traverse through all array elements for i in range(n): # Last i elements are already in place for j in range(0, n-i-1): # traverse the array from 0 to n-i-1 # Swap if the element found is greater # than the next element if arr[j] > arr[j+1]: arr[j], arr[j+1] = arr[j+1], arr[j] bonus[j], bonus[j+1] = bonus[j+1], bonus[j] s,n=input().split() s,n=int(s),int(n) x=[] y=[] for i in range(n): a=input().split() x.append(int(a[0])) y.append(int(a[1])) win = 0 bubbleSort (x, y) for i in range(n): if s>x[i]: s += y[i] win+=1 else: print("NO") break if(win==n):print("YES")
Title: Dragons Time Limit: None seconds Memory Limit: None megabytes Problem Description: Kirito is stuck on a level of the MMORPG he is playing now. To move on in the game, he's got to defeat all *n* dragons that live on this level. Kirito and the dragons have strength, which is represented by an integer. In the duel between two opponents the duel's outcome is determined by their strength. Initially, Kirito's strength equals *s*. If Kirito starts duelling with the *i*-th (1<=≤<=*i*<=≤<=*n*) dragon and Kirito's strength is not greater than the dragon's strength *x**i*, then Kirito loses the duel and dies. But if Kirito's strength is greater than the dragon's strength, then he defeats the dragon and gets a bonus strength increase by *y**i*. Kirito can fight the dragons in any order. Determine whether he can move on to the next level of the game, that is, defeat all dragons without a single loss. Input Specification: The first line contains two space-separated integers *s* and *n* (1<=≤<=*s*<=≤<=104, 1<=≤<=*n*<=≤<=103). Then *n* lines follow: the *i*-th line contains space-separated integers *x**i* and *y**i* (1<=≤<=*x**i*<=≤<=104, 0<=≤<=*y**i*<=≤<=104) — the *i*-th dragon's strength and the bonus for defeating it. Output Specification: On a single line print "YES" (without the quotes), if Kirito can move on to the next level and print "NO" (without the quotes), if he can't. Demo Input: ['2 2\n1 99\n100 0\n', '10 1\n100 100\n'] Demo Output: ['YES\n', 'NO\n'] Note: In the first sample Kirito's strength initially equals 2. As the first dragon's strength is less than 2, Kirito can fight it and defeat it. After that he gets the bonus and his strength increases to 2 + 99 = 101. Now he can defeat the second dragon and move on to the next level. In the second sample Kirito's strength is too small to defeat the only dragon and win.
```python def bubbleSort(arr , bonus): n = len(arr) # Traverse through all array elements for i in range(n): # Last i elements are already in place for j in range(0, n-i-1): # traverse the array from 0 to n-i-1 # Swap if the element found is greater # than the next element if arr[j] > arr[j+1]: arr[j], arr[j+1] = arr[j+1], arr[j] bonus[j], bonus[j+1] = bonus[j+1], bonus[j] s,n=input().split() s,n=int(s),int(n) x=[] y=[] for i in range(n): a=input().split() x.append(int(a[0])) y.append(int(a[1])) win = 0 bubbleSort (x, y) for i in range(n): if s>x[i]: s += y[i] win+=1 else: print("NO") break if(win==n):print("YES") ```
3
825
C
Multi-judge Solving
PROGRAMMING
1,600
[ "greedy", "implementation" ]
null
null
Makes solves problems on Decoforces and lots of other different online judges. Each problem is denoted by its difficulty — a positive integer number. Difficulties are measured the same across all the judges (the problem with difficulty *d* on Decoforces is as hard as the problem with difficulty *d* on any other judge). Makes has chosen *n* problems to solve on Decoforces with difficulties *a*1,<=*a*2,<=...,<=*a**n*. He can solve these problems in arbitrary order. Though he can solve problem *i* with difficulty *a**i* only if he had already solved some problem with difficulty (no matter on what online judge was it). Before starting this chosen list of problems, Makes has already solved problems with maximum difficulty *k*. With given conditions it's easy to see that Makes sometimes can't solve all the chosen problems, no matter what order he chooses. So he wants to solve some problems on other judges to finish solving problems from his list. For every positive integer *y* there exist some problem with difficulty *y* on at least one judge besides Decoforces. Makes can solve problems on any judge at any time, it isn't necessary to do problems from the chosen list one right after another. Makes doesn't have too much free time, so he asked you to calculate the minimum number of problems he should solve on other judges in order to solve all the chosen problems from Decoforces.
The first line contains two integer numbers *n*, *k* (1<=≤<=*n*<=≤<=103, 1<=≤<=*k*<=≤<=109). The second line contains *n* space-separated integer numbers *a*1,<=*a*2,<=...,<=*a**n* (1<=≤<=*a**i*<=≤<=109).
Print minimum number of problems Makes should solve on other judges in order to solve all chosen problems on Decoforces.
[ "3 3\n2 1 9\n", "4 20\n10 3 6 3\n" ]
[ "1\n", "0\n" ]
In the first example Makes at first solves problems 1 and 2. Then in order to solve the problem with difficulty 9, he should solve problem with difficulty no less than 5. The only available are difficulties 5 and 6 on some other judge. Solving any of these will give Makes opportunity to solve problem 3. In the second example he can solve every problem right from the start.
0
[ { "input": "3 3\n2 1 9", "output": "1" }, { "input": "4 20\n10 3 6 3", "output": "0" }, { "input": "1 1000000000\n1", "output": "0" }, { "input": "1 1\n3", "output": "1" }, { "input": "50 100\n74 55 33 5 83 24 75 59 30 36 13 4 62 28 96 17 6 35 45 53 33 11 37 93 34 79 61 72 13 31 44 75 7 3 63 46 18 16 44 89 62 25 32 12 38 55 75 56 61 82", "output": "0" }, { "input": "100 10\n246 286 693 607 87 612 909 312 621 37 801 558 504 914 416 762 187 974 976 123 635 488 416 659 988 998 93 662 92 749 889 78 214 786 735 625 921 372 713 617 975 119 402 411 878 138 548 905 802 762 940 336 529 373 745 835 805 880 816 94 166 114 475 699 974 462 61 337 555 805 968 815 392 746 591 558 740 380 668 29 881 151 387 986 174 923 541 520 998 947 535 651 103 584 664 854 180 852 726 93", "output": "1" }, { "input": "2 1\n1 1000000000", "output": "29" }, { "input": "29 2\n1 3 7 15 31 63 127 255 511 1023 2047 4095 8191 16383 32767 65535 131071 262143 524287 1048575 2097151 4194303 8388607 16777215 33554431 67108863 134217727 268435455 536870911", "output": "27" }, { "input": "1 1\n1000000000", "output": "29" }, { "input": "7 6\n4 20 16 14 3 17 4", "output": "1" }, { "input": "2 1\n3 6", "output": "1" }, { "input": "1 1\n20", "output": "4" }, { "input": "5 2\n86 81 53 25 18", "output": "4" }, { "input": "4 1\n88 55 14 39", "output": "4" }, { "input": "3 1\n2 3 6", "output": "0" }, { "input": "3 2\n4 9 18", "output": "1" }, { "input": "5 3\n6 6 6 13 27", "output": "2" }, { "input": "5 1\n23 8 83 26 18", "output": "4" }, { "input": "3 1\n4 5 6", "output": "1" }, { "input": "3 1\n1 3 6", "output": "1" }, { "input": "1 1\n2", "output": "0" }, { "input": "3 2\n4 5 6", "output": "0" }, { "input": "5 1\n100 200 400 1000 2000", "output": "7" }, { "input": "2 1\n1 4", "output": "1" }, { "input": "4 1\n2 4 8 32", "output": "1" }, { "input": "2 10\n21 42", "output": "1" }, { "input": "3 3\n1 7 13", "output": "1" }, { "input": "3 1\n1 4 6", "output": "1" }, { "input": "2 2\n2 8", "output": "1" }, { "input": "1 1\n4", "output": "1" }, { "input": "2 2\n8 16", "output": "1" }, { "input": "3 1\n4 8 16", "output": "1" }, { "input": "3 1\n3 6 9", "output": "1" }, { "input": "2 1\n4 8", "output": "1" }, { "input": "2 2\n7 14", "output": "1" }, { "input": "1 4\n9", "output": "1" }, { "input": "5 3\n1024 4096 16384 65536 536870913", "output": "24" }, { "input": "2 5\n10 11", "output": "0" }, { "input": "2 2\n3 6", "output": "0" }, { "input": "2 2\n8 11", "output": "1" }, { "input": "3 19905705\n263637263 417905394 108361057", "output": "3" }, { "input": "4 25\n100 11 1 13", "output": "1" }, { "input": "10 295206008\n67980321 440051990 883040288 135744260 96431758 242465794 576630162 972797687 356406646 547451696", "output": "0" }, { "input": "4 2\n45 44 35 38", "output": "4" }, { "input": "1 2\n9", "output": "2" }, { "input": "3 6\n13 26 52", "output": "1" }, { "input": "9 30111088\n824713578 11195876 458715185 731769293 680826358 189542586 550198537 860586039 101083021", "output": "2" }, { "input": "3 72014068\n430005292 807436976 828082746", "output": "2" }, { "input": "3 165219745\n737649884 652879952 506420386", "output": "1" }, { "input": "2 60669400\n95037700 337255240", "output": "1" }, { "input": "4 28\n34 1 86 90", "output": "1" }, { "input": "2 1\n5 10", "output": "2" }, { "input": "2 1\n4 1000000000", "output": "28" }, { "input": "2 1\n2 3", "output": "0" }, { "input": "2 1\n3 5", "output": "1" }, { "input": "3 3\n1 5 20", "output": "1" }, { "input": "9 1\n1 2 4 9 15 32 64 128 1024", "output": "4" } ]
1,500,225,111
2,147,483,647
Python 3
OK
TESTS
61
62
4,915,200
n, k = map(int, input().split()) a = sorted(list(map(int, input().split()))) answer = 0 for elem in a: while 2 * k < elem: k *= 2 answer += 1 k = max(k, elem) print(answer)
Title: Multi-judge Solving Time Limit: None seconds Memory Limit: None megabytes Problem Description: Makes solves problems on Decoforces and lots of other different online judges. Each problem is denoted by its difficulty — a positive integer number. Difficulties are measured the same across all the judges (the problem with difficulty *d* on Decoforces is as hard as the problem with difficulty *d* on any other judge). Makes has chosen *n* problems to solve on Decoforces with difficulties *a*1,<=*a*2,<=...,<=*a**n*. He can solve these problems in arbitrary order. Though he can solve problem *i* with difficulty *a**i* only if he had already solved some problem with difficulty (no matter on what online judge was it). Before starting this chosen list of problems, Makes has already solved problems with maximum difficulty *k*. With given conditions it's easy to see that Makes sometimes can't solve all the chosen problems, no matter what order he chooses. So he wants to solve some problems on other judges to finish solving problems from his list. For every positive integer *y* there exist some problem with difficulty *y* on at least one judge besides Decoforces. Makes can solve problems on any judge at any time, it isn't necessary to do problems from the chosen list one right after another. Makes doesn't have too much free time, so he asked you to calculate the minimum number of problems he should solve on other judges in order to solve all the chosen problems from Decoforces. Input Specification: The first line contains two integer numbers *n*, *k* (1<=≤<=*n*<=≤<=103, 1<=≤<=*k*<=≤<=109). The second line contains *n* space-separated integer numbers *a*1,<=*a*2,<=...,<=*a**n* (1<=≤<=*a**i*<=≤<=109). Output Specification: Print minimum number of problems Makes should solve on other judges in order to solve all chosen problems on Decoforces. Demo Input: ['3 3\n2 1 9\n', '4 20\n10 3 6 3\n'] Demo Output: ['1\n', '0\n'] Note: In the first example Makes at first solves problems 1 and 2. Then in order to solve the problem with difficulty 9, he should solve problem with difficulty no less than 5. The only available are difficulties 5 and 6 on some other judge. Solving any of these will give Makes opportunity to solve problem 3. In the second example he can solve every problem right from the start.
```python n, k = map(int, input().split()) a = sorted(list(map(int, input().split()))) answer = 0 for elem in a: while 2 * k < elem: k *= 2 answer += 1 k = max(k, elem) print(answer) ```
3
58
A
Chat room
PROGRAMMING
1,000
[ "greedy", "strings" ]
A. Chat room
1
256
Vasya has recently learned to type and log on to the Internet. He immediately entered a chat room and decided to say hello to everybody. Vasya typed the word *s*. It is considered that Vasya managed to say hello if several letters can be deleted from the typed word so that it resulted in the word "hello". For example, if Vasya types the word "ahhellllloou", it will be considered that he said hello, and if he types "hlelo", it will be considered that Vasya got misunderstood and he didn't manage to say hello. Determine whether Vasya managed to say hello by the given word *s*.
The first and only line contains the word *s*, which Vasya typed. This word consisits of small Latin letters, its length is no less that 1 and no more than 100 letters.
If Vasya managed to say hello, print "YES", otherwise print "NO".
[ "ahhellllloou\n", "hlelo\n" ]
[ "YES\n", "NO\n" ]
none
500
[ { "input": "ahhellllloou", "output": "YES" }, { "input": "hlelo", "output": "NO" }, { "input": "helhcludoo", "output": "YES" }, { "input": "hehwelloho", "output": "YES" }, { "input": "pnnepelqomhhheollvlo", "output": "YES" }, { "input": "tymbzjyqhymedasloqbq", "output": "NO" }, { "input": "yehluhlkwo", "output": "NO" }, { "input": "hatlevhhalrohairnolsvocafgueelrqmlqlleello", "output": "YES" }, { "input": "hhhtehdbllnhwmbyhvelqqyoulretpbfokflhlhreeflxeftelziclrwllrpflflbdtotvlqgoaoqldlroovbfsq", "output": "YES" }, { "input": "rzlvihhghnelqtwlexmvdjjrliqllolhyewgozkuovaiezgcilelqapuoeglnwmnlftxxiigzczlouooi", "output": "YES" }, { "input": "pfhhwctyqdlkrwhebfqfelhyebwllhemtrmeblgrynmvyhioesqklclocxmlffuormljszllpoo", "output": "YES" }, { "input": "lqllcolohwflhfhlnaow", "output": "NO" }, { "input": "heheeellollvoo", "output": "YES" }, { "input": "hellooo", "output": "YES" }, { "input": "o", "output": "NO" }, { "input": "hhqhzeclohlehljlhtesllylrolmomvuhcxsobtsckogdv", "output": "YES" }, { "input": "yoegfuzhqsihygnhpnukluutocvvwuldiighpogsifealtgkfzqbwtmgghmythcxflebrkctlldlkzlagovwlstsghbouk", "output": "YES" }, { "input": "uatqtgbvrnywfacwursctpagasnhydvmlinrcnqrry", "output": "NO" }, { "input": "tndtbldbllnrwmbyhvqaqqyoudrstpbfokfoclnraefuxtftmgzicorwisrpfnfpbdtatvwqgyalqtdtrjqvbfsq", "output": "NO" }, { "input": "rzlvirhgemelnzdawzpaoqtxmqucnahvqnwldklrmjiiyageraijfivigvozgwngiulttxxgzczptusoi", "output": "YES" }, { "input": "kgyelmchocojsnaqdsyeqgnllytbqietpdlgknwwumqkxrexgdcnwoldicwzwofpmuesjuxzrasscvyuqwspm", "output": "YES" }, { "input": "pnyvrcotjvgynbeldnxieghfltmexttuxzyac", "output": "NO" }, { "input": "dtwhbqoumejligbenxvzhjlhosqojetcqsynlzyhfaevbdpekgbtjrbhlltbceobcok", "output": "YES" }, { "input": "crrfpfftjwhhikwzeedrlwzblckkteseofjuxjrktcjfsylmlsvogvrcxbxtffujqshslemnixoeezivksouefeqlhhokwbqjz", "output": "YES" }, { "input": "jhfbndhyzdvhbvhmhmefqllujdflwdpjbehedlsqfdsqlyelwjtyloxwsvasrbqosblzbowlqjmyeilcvotdlaouxhdpoeloaovb", "output": "YES" }, { "input": "hwlghueoemiqtjhhpashjsouyegdlvoyzeunlroypoprnhlyiwiuxrghekaylndhrhllllwhbebezoglydcvykllotrlaqtvmlla", "output": "YES" }, { "input": "wshiaunnqnqxodholbipwhhjmyeblhgpeleblklpzwhdunmpqkbuzloetmwwxmeltkrcomulxauzlwmlklldjodozxryghsnwgcz", "output": "YES" }, { "input": "shvksednttggehroewuiptvvxtrzgidravtnjwuqrlnnkxbplctzkckinpkgjopjfoxdbojtcvsuvablcbkrzajrlhgobkcxeqti", "output": "YES" }, { "input": "hyyhddqhxhekehkwfhlnlsihzefwchzerevcjtokefplholrbvxlltdlafjxrfhleglrvlolojoqaolagtbeyogxlbgfolllslli", "output": "YES" }, { "input": "iaagrdhhelxpdegueiulflquvlzidoprzkehthkldaytrjwhyhprwjxlltinxvuilxohqgjqcvkkdcuoliekcnlilwgqlnlzouoo", "output": "YES" }, { "input": "wfluaeseldgxyvxpwuhkptdmlflnlhktwxiabsvkolsquymrmhzczzoybvlilhmvsuunggvgxzgyyffk", "output": "NO" }, { "input": "loee", "output": "NO" }, { "input": "izdipwylefqmjbuoznfglgcfvedeouflkeehxbasaqmiooppfsqlhprospqgxvzrcpwlfdddngoqvpwvggsnvvxhmjoslwjudjlo", "output": "NO" }, { "input": "pplynflbjlseflaegzqpdxswgunhnlglqhycrbcwdfhclmcrwekkzsoosmfblljeenwfjyifcvxihhhbyhmhlkvtskeglaovjnsi", "output": "YES" }, { "input": "xqjqmenkodmlhzyzmmvofdngktygbbxbzpluzcohohmalkoeuwfikblltaaigv", "output": "NO" }, { "input": "hello", "output": "YES" }, { "input": "oohell", "output": "NO" }, { "input": "hell", "output": "NO" }, { "input": "eloellohoelo", "output": "NO" }, { "input": "helllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllo", "output": "YES" } ]
1,651,274,316
2,147,483,647
PyPy 3-64
OK
TESTS
40
77
0
s = input() pos = s.find('h') if pos != -1: pos = s.find('e',pos + 1) if pos != -1: pos = s.find('l',pos + 1) if pos != -1: pos = s.find('l',pos + 1) if pos != -1: pos = s.find('o',pos + 1) if pos != -1: print('YES') else : print('NO')
Title: Chat room Time Limit: 1 seconds Memory Limit: 256 megabytes Problem Description: Vasya has recently learned to type and log on to the Internet. He immediately entered a chat room and decided to say hello to everybody. Vasya typed the word *s*. It is considered that Vasya managed to say hello if several letters can be deleted from the typed word so that it resulted in the word "hello". For example, if Vasya types the word "ahhellllloou", it will be considered that he said hello, and if he types "hlelo", it will be considered that Vasya got misunderstood and he didn't manage to say hello. Determine whether Vasya managed to say hello by the given word *s*. Input Specification: The first and only line contains the word *s*, which Vasya typed. This word consisits of small Latin letters, its length is no less that 1 and no more than 100 letters. Output Specification: If Vasya managed to say hello, print "YES", otherwise print "NO". Demo Input: ['ahhellllloou\n', 'hlelo\n'] Demo Output: ['YES\n', 'NO\n'] Note: none
```python s = input() pos = s.find('h') if pos != -1: pos = s.find('e',pos + 1) if pos != -1: pos = s.find('l',pos + 1) if pos != -1: pos = s.find('l',pos + 1) if pos != -1: pos = s.find('o',pos + 1) if pos != -1: print('YES') else : print('NO') ```
3.9615
137
A
Postcards and photos
PROGRAMMING
900
[ "implementation" ]
null
null
Polycarpus has postcards and photos hung in a row on the wall. He decided to put them away to the closet and hang on the wall a famous painter's picture. Polycarpus does it like that: he goes from the left to the right and removes the objects consecutively. As Polycarpus doesn't want any mix-ups to happen, he will not carry in his hands objects of two different types. In other words, Polycarpus can't carry both postcards and photos simultaneously. Sometimes he goes to the closet and puts the objects there, thus leaving his hands free. Polycarpus must put all the postcards and photos to the closet. He cannot skip objects. What minimum number of times he should visit the closet if he cannot carry more than 5 items?
The only line of the input data contains a non-empty string consisting of letters "С" and "P" whose length does not exceed 100 characters. If the *i*-th character in the string is the letter "С", that means that the *i*-th object (the numbering goes from the left to the right) on Polycarpus' wall is a postcard. And if the *i*-th character is the letter "P", than the *i*-th object on the wall is a photo.
Print the only number — the minimum number of times Polycarpus has to visit the closet.
[ "CPCPCPC\n", "CCCCCCPPPPPP\n", "CCCCCCPPCPPPPPPPPPP\n", "CCCCCCCCCC\n" ]
[ "7\n", "4\n", "6\n", "2\n" ]
In the first sample Polycarpus needs to take one item to the closet 7 times. In the second sample Polycarpus can first take 3 postcards to the closet; then 3 more. He can take the 6 photos that are left in the similar way, going to the closet twice. In the third sample Polycarpus can visit the closet twice, both times carrying 3 postcards. Then he can take there 2 photos at once, then one postcard and finally, he can carry the last 10 photos if he visits the closet twice. In the fourth sample Polycarpus can visit the closet twice and take there all 10 postcards (5 items during each go).
500
[ { "input": "CPCPCPC", "output": "7" }, { "input": "CCCCCCPPPPPP", "output": "4" }, { "input": "CCCCCCPPCPPPPPPPPPP", "output": "6" }, { "input": "CCCCCCCCCC", "output": "2" }, { "input": "CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC", "output": "20" }, { "input": "CPCPCPCPCPCPCPCPCPCPCPCPCPCPCPCPCPCPCPCPCPCPCPCPCPCPCPCPCPCPCPCPCPCPCPCPCPCPCPCPCPCPCPCPCPCPCPCPCPCP", "output": "100" }, { "input": "CCCCCCPPPPPPCCCCCCPPPPPPCCCCCCPPPPPPCCCCCCPPPPPPCCCCCCPPPPPPCCCCCCPPPPPPCCCCCCPPPPPP", "output": "28" }, { "input": "P", "output": "1" }, { "input": "C", "output": "1" }, { "input": "PC", "output": "2" }, { "input": "PPPPP", "output": "1" }, { "input": "PPPP", "output": "1" }, { "input": "CCCCCCCCCC", "output": "2" }, { "input": "CP", "output": "2" }, { "input": "CPCCPCPPPC", "output": "7" }, { "input": "PPCPCCPCPPCCPPPPPPCP", "output": "12" }, { "input": "PCPCCPCPPCCPCPCCPPPPPCPCPCPCCC", "output": "20" }, { "input": "CCPPPPPCPCCPPPCCPPCPCCPCPPCPPCCCPPCPPPCC", "output": "21" }, { "input": "CPPCCCCCCPCCCCPCCPCPPPCPCCCCCCCPCCPPCCCPCCCCCPPCCC", "output": "23" }, { "input": "PPCCCCPPCCPPPCCCCPPPPPCPPPCPPPCCCPCCCPCPPPCPCCCPCCPPCCPPPPPC", "output": "26" }, { "input": "PPCPPCCCCCPCCCPCCPCCCCPPPCCCCPCPCCPCPCPCPPPPCCPPPPPPPCPCPPPCPCPCPCPPPC", "output": "39" }, { "input": "CCPCPPPPCPPPPCCCCPCCPCPCCPPCPCCCPPCCCCPCCCPCPCCPPPCPPPCPCPPPPPCPCCPCCPPCCCPCPPPC", "output": "43" }, { "input": "CCPPCPCPCPPCCCPCPPPCCCCCPCPPCCCPPCPCPPPPCPPCPPPPCCCPCCPCPPPCPCPPCCCPCCCCCCPCCCCPCCPPPPCCPP", "output": "47" }, { "input": "PPCPPPPCCCCPPPPCPPPPPPPPCPCPPCCPPPPPPPPCPPPPCCCCPPPPCPPCPCPPPCCPPCPPCCCPCPPCCCCCCPCPCPCPPCPCPCPPPCCC", "output": "49" }, { "input": "CCPCCCPPCPPCPCCCPCPPCPPCPPCCCCCCCPCPPCPCCPCCPCPCPCCCPCCCPPPCCPCCPPCCCCCPPPPCPCPPCPCPCCPCPPP", "output": "53" }, { "input": "PCPCPPPPCPCPPPCPPCCCPCPCPCPPCPPPPCCPPPCPPPCPPPPCCPPCCCPCCPCCCCPCCPCPPCPCCCPCPPCP", "output": "47" }, { "input": "PCCPPCCCPPCPPCC", "output": "8" }, { "input": "CCCPPPPPPCCCCPCCPCCCCCCPCCCPPPCPC", "output": "15" }, { "input": "CPPCCPPCCPPPCCCPPPPCPPPPPPPCCPCPCCPPPPCCCPPCCPCCPPCCCPCCPCPPPPCCPP", "output": "31" }, { "input": "CCCCCPPPCCPCPCCPPPPCPCCCPCPPCPCPPPPPCCPCPCPC", "output": "25" }, { "input": "PPPPPPPPPCPCP", "output": "6" }, { "input": "PPPCPCPCCCPPCPCCPPPPCCCPCCP", "output": "15" }, { "input": "PCPCCPCPPPPPPCPCCPCPCPCCPPPCPCPCPPCPPCCPCPCCCPCCCPPCPCPCCPCPPPPCCCCCCPPCCPCCCCCPCCCCPPPCPCCCCCPCPCP", "output": "59" }, { "input": "PCCPCPPCCCCCPCCCPCCCPPCCCCCPPPCCPPPPPPPPCPPPCCPPCPPCPCP", "output": "26" }, { "input": "CPCPCCPPPPCCPPCPPCPPCCCCCCPCCPPPCPPCPCCCCCCPCPCCCCCPCCCCCCPCCPPCCP", "output": "35" }, { "input": "PPCCCCCCPP", "output": "4" }, { "input": "CCCCCCCCCCCCPPCCCCPP", "output": "6" }, { "input": "PPPPPPPPPPPCCCCCCCCCCCCCCCCCCP", "output": "8" }, { "input": "PPPPPPPPPPPPPPPPPPPPPCCCCCCCCCCCPPPPCCCC", "output": "10" }, { "input": "PPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPCCCCCCCCCPPPC", "output": "12" }, { "input": "CCCCCCCCCPPPPPPPPPPPPPPPPPPPPCCCCCCCCCCCCCCCCCCCCCCCCPPPPPCC", "output": "13" }, { "input": "CCCCCCCCCCCCCCCCCCCCCCCCCPPPCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC", "output": "15" }, { "input": "CCCCCPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPCCCCCCCCCCCCCPPPPPPPCCPPP", "output": "18" }, { "input": "PPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPCCCCCCCCCCCCCCCCCCCCCCCCCCCPPPPPPPPPPPPPPPPPPP", "output": "19" }, { "input": "PPPPPPPPPPPPPPPPPPPPPPPCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCPPPPPCCCPPPPCCCCCPCC", "output": "23" } ]
1,611,302,578
2,147,483,647
Python 3
OK
TESTS
45
124
307,200
s=input() c=[] ans=0 for i in s: if len(c)==0: c.append(i) elif len(c)!=0 and i=="C" and c[-1]=="P": ans=ans+1 c=[] c.append(i) elif len(c)!=0 and i=="P" and c[-1]=="C": ans=ans+1 c=[] c.append(i) else: if len(c)==5: c=[] c.append(i) ans=ans+1 else: c.append(i) print(ans+1)
Title: Postcards and photos Time Limit: None seconds Memory Limit: None megabytes Problem Description: Polycarpus has postcards and photos hung in a row on the wall. He decided to put them away to the closet and hang on the wall a famous painter's picture. Polycarpus does it like that: he goes from the left to the right and removes the objects consecutively. As Polycarpus doesn't want any mix-ups to happen, he will not carry in his hands objects of two different types. In other words, Polycarpus can't carry both postcards and photos simultaneously. Sometimes he goes to the closet and puts the objects there, thus leaving his hands free. Polycarpus must put all the postcards and photos to the closet. He cannot skip objects. What minimum number of times he should visit the closet if he cannot carry more than 5 items? Input Specification: The only line of the input data contains a non-empty string consisting of letters "С" and "P" whose length does not exceed 100 characters. If the *i*-th character in the string is the letter "С", that means that the *i*-th object (the numbering goes from the left to the right) on Polycarpus' wall is a postcard. And if the *i*-th character is the letter "P", than the *i*-th object on the wall is a photo. Output Specification: Print the only number — the minimum number of times Polycarpus has to visit the closet. Demo Input: ['CPCPCPC\n', 'CCCCCCPPPPPP\n', 'CCCCCCPPCPPPPPPPPPP\n', 'CCCCCCCCCC\n'] Demo Output: ['7\n', '4\n', '6\n', '2\n'] Note: In the first sample Polycarpus needs to take one item to the closet 7 times. In the second sample Polycarpus can first take 3 postcards to the closet; then 3 more. He can take the 6 photos that are left in the similar way, going to the closet twice. In the third sample Polycarpus can visit the closet twice, both times carrying 3 postcards. Then he can take there 2 photos at once, then one postcard and finally, he can carry the last 10 photos if he visits the closet twice. In the fourth sample Polycarpus can visit the closet twice and take there all 10 postcards (5 items during each go).
```python s=input() c=[] ans=0 for i in s: if len(c)==0: c.append(i) elif len(c)!=0 and i=="C" and c[-1]=="P": ans=ans+1 c=[] c.append(i) elif len(c)!=0 and i=="P" and c[-1]=="C": ans=ans+1 c=[] c.append(i) else: if len(c)==5: c=[] c.append(i) ans=ans+1 else: c.append(i) print(ans+1) ```
3
0
none
none
none
0
[ "none" ]
null
null
A very brave explorer Petya once decided to explore Paris catacombs. Since Petya is not really experienced, his exploration is just walking through the catacombs. Catacombs consist of several rooms and bidirectional passages between some pairs of them. Some passages can connect a room to itself and since the passages are built on different depths they do not intersect each other. Every minute Petya arbitrary chooses a passage from the room he is currently in and then reaches the room on the other end of the passage in exactly one minute. When he enters a room at minute *i*, he makes a note in his logbook with number *t**i*: - If Petya has visited this room before, he writes down the minute he was in this room last time; - Otherwise, Petya writes down an arbitrary non-negative integer strictly less than current minute *i*. Initially, Petya was in one of the rooms at minute 0, he didn't write down number *t*0. At some point during his wandering Petya got tired, threw out his logbook and went home. Vasya found his logbook and now he is curious: what is the minimum possible number of rooms in Paris catacombs according to Petya's logbook?
The first line contains a single integer *n* (1<=≤<=*n*<=≤<=2·105) — then number of notes in Petya's logbook. The second line contains *n* non-negative integers *t*1,<=*t*2,<=...,<=*t**n* (0<=≤<=*t**i*<=&lt;<=*i*) — notes in the logbook.
In the only line print a single integer — the minimum possible number of rooms in Paris catacombs.
[ "2\n0 0\n", "5\n0 1 0 1 3\n" ]
[ "2\n", "3\n" ]
In the first sample, sequence of rooms Petya visited could be, for example 1 → 1 → 2, 1 → 2 → 1 or 1 → 2 → 3. The minimum possible number of rooms is 2. In the second sample, the sequence could be 1 → 2 → 3 → 1 → 2 → 1.
0
[ { "input": "2\n0 0", "output": "2" }, { "input": "5\n0 1 0 1 3", "output": "3" }, { "input": "7\n0 1 0 0 0 0 0", "output": "6" }, { "input": "100\n0 0 0 0 0 0 1 4 4 0 2 2 4 1 7 1 11 0 8 4 12 12 3 0 3 2 2 4 3 9 1 5 4 6 9 14 6 2 4 18 7 7 19 11 20 13 17 16 0 34 2 6 12 27 9 4 29 22 4 20 20 17 17 20 37 53 17 3 3 15 1 46 11 24 31 6 12 6 11 18 13 1 5 0 19 10 24 41 16 41 18 52 46 39 16 30 18 23 53 13", "output": "66" }, { "input": "100\n0 0 0 0 1 2 0 0 3 3 2 2 6 4 1 6 2 9 8 0 2 0 2 2 0 0 10 0 4 20 4 11 3 9 0 3 8 2 6 3 13 2 1 23 20 20 16 7 1 37 6 1 25 25 14 30 6 23 18 3 2 16 0 4 37 9 4 6 2 14 15 11 16 35 36 7 32 26 8 1 0 37 35 38 27 3 16 8 3 7 7 25 13 13 30 11 5 28 0 12", "output": "71" }, { "input": "1\n0", "output": "1" }, { "input": "14\n0 0 1 1 2 2 3 3 4 4 5 5 6 6", "output": "8" }, { "input": "2\n0 1", "output": "1" } ]
1,510,504,422
1,722
Python 3
OK
TESTS
31
234
20,480,000
n = int(input()) t = list(map(int, input().split())) r = {0:1} # time visited : room num m = 1 for time in range(1, n+1): x = t[time-1] # number written down if x in r: r[time] = r.pop(x) else: m += 1 r[time] = m print(m)
Title: none Time Limit: None seconds Memory Limit: None megabytes Problem Description: A very brave explorer Petya once decided to explore Paris catacombs. Since Petya is not really experienced, his exploration is just walking through the catacombs. Catacombs consist of several rooms and bidirectional passages between some pairs of them. Some passages can connect a room to itself and since the passages are built on different depths they do not intersect each other. Every minute Petya arbitrary chooses a passage from the room he is currently in and then reaches the room on the other end of the passage in exactly one minute. When he enters a room at minute *i*, he makes a note in his logbook with number *t**i*: - If Petya has visited this room before, he writes down the minute he was in this room last time; - Otherwise, Petya writes down an arbitrary non-negative integer strictly less than current minute *i*. Initially, Petya was in one of the rooms at minute 0, he didn't write down number *t*0. At some point during his wandering Petya got tired, threw out his logbook and went home. Vasya found his logbook and now he is curious: what is the minimum possible number of rooms in Paris catacombs according to Petya's logbook? Input Specification: The first line contains a single integer *n* (1<=≤<=*n*<=≤<=2·105) — then number of notes in Petya's logbook. The second line contains *n* non-negative integers *t*1,<=*t*2,<=...,<=*t**n* (0<=≤<=*t**i*<=&lt;<=*i*) — notes in the logbook. Output Specification: In the only line print a single integer — the minimum possible number of rooms in Paris catacombs. Demo Input: ['2\n0 0\n', '5\n0 1 0 1 3\n'] Demo Output: ['2\n', '3\n'] Note: In the first sample, sequence of rooms Petya visited could be, for example 1 → 1 → 2, 1 → 2 → 1 or 1 → 2 → 3. The minimum possible number of rooms is 2. In the second sample, the sequence could be 1 → 2 → 3 → 1 → 2 → 1.
```python n = int(input()) t = list(map(int, input().split())) r = {0:1} # time visited : room num m = 1 for time in range(1, n+1): x = t[time-1] # number written down if x in r: r[time] = r.pop(x) else: m += 1 r[time] = m print(m) ```
3
883
G
Orientation of Edges
PROGRAMMING
1,900
[ "dfs and similar", "graphs" ]
null
null
Vasya has a graph containing both directed (oriented) and undirected (non-oriented) edges. There can be multiple edges between a pair of vertices. Vasya has picked a vertex *s* from the graph. Now Vasya wants to create two separate plans: 1. to orient each undirected edge in one of two possible directions to maximize number of vertices reachable from vertex *s*; 1. to orient each undirected edge in one of two possible directions to minimize number of vertices reachable from vertex *s*. In each of two plans each undirected edge must become directed. For an edge chosen directions can differ in two plans. Help Vasya find the plans.
The first line contains three integers *n*, *m* and *s* (2<=≤<=*n*<=≤<=3·105, 1<=≤<=*m*<=≤<=3·105, 1<=≤<=*s*<=≤<=*n*) — number of vertices and edges in the graph, and the vertex Vasya has picked. The following *m* lines contain information about the graph edges. Each line contains three integers *t**i*, *u**i* and *v**i* (1<=≤<=*t**i*<=≤<=2, 1<=≤<=*u**i*,<=*v**i*<=≤<=*n*, *u**i*<=≠<=*v**i*) — edge type and vertices connected by the edge. If *t**i*<==<=1 then the edge is directed and goes from the vertex *u**i* to the vertex *v**i*. If *t**i*<==<=2 then the edge is undirected and it connects the vertices *u**i* and *v**i*. It is guaranteed that there is at least one undirected edge in the graph.
The first two lines should describe the plan which maximizes the number of reachable vertices. The lines three and four should describe the plan which minimizes the number of reachable vertices. A description of each plan should start with a line containing the number of reachable vertices. The second line of a plan should consist of *f* symbols '+' and '-', where *f* is the number of undirected edges in the initial graph. Print '+' as the *j*-th symbol of the string if the *j*-th undirected edge (*u*,<=*v*) from the input should be oriented from *u* to *v*. Print '-' to signify the opposite direction (from *v* to *u*). Consider undirected edges to be numbered in the same order they are given in the input. If there are multiple solutions, print any of them.
[ "2 2 1\n1 1 2\n2 2 1\n", "6 6 3\n2 2 6\n1 4 5\n2 3 4\n1 4 1\n1 3 1\n2 2 3\n" ]
[ "2\n-\n2\n+\n", "6\n++-\n2\n+-+\n" ]
none
0
[ { "input": "2 2 1\n1 1 2\n2 2 1", "output": "2\n-\n2\n+" }, { "input": "6 6 3\n2 2 6\n1 4 5\n2 3 4\n1 4 1\n1 3 1\n2 2 3", "output": "6\n++-\n2\n+-+" }, { "input": "5 5 5\n2 5 3\n1 2 3\n1 4 5\n2 5 2\n1 2 1", "output": "4\n++\n1\n--" }, { "input": "13 18 9\n2 3 10\n1 12 10\n1 11 4\n2 2 8\n1 5 1\n1 7 12\n1 5 13\n1 9 7\n1 10 11\n2 3 12\n1 9 2\n1 3 9\n1 8 12\n2 11 3\n1 3 1\n1 8 4\n2 9 11\n1 12 13", "output": "11\n++-++\n8\n+-+-+" }, { "input": "5 10 2\n2 2 4\n1 1 2\n2 2 3\n1 3 1\n1 4 1\n1 5 1\n1 3 4\n2 5 4\n1 5 2\n2 5 3", "output": "5\n++--\n1\n--++" }, { "input": "5 5 1\n2 5 3\n2 2 5\n1 2 1\n2 4 2\n1 1 5", "output": "5\n+--\n2\n-++" }, { "input": "5 10 3\n2 5 1\n2 1 3\n2 3 5\n2 1 4\n2 5 4\n2 2 5\n2 3 2\n2 2 1\n2 4 3\n2 4 2", "output": "5\n--+---+---\n1\n++-+++-+++" }, { "input": "10 10 9\n2 1 6\n2 7 8\n1 4 1\n2 5 10\n1 5 2\n1 6 7\n1 5 1\n2 9 8\n2 5 3\n2 3 8", "output": "9\n+-++--\n1\n+++-++" }, { "input": "10 20 5\n2 3 8\n2 10 2\n1 8 2\n1 7 3\n1 1 8\n1 8 5\n1 2 7\n1 3 9\n1 6 1\n2 10 8\n1 4 5\n1 6 8\n2 3 4\n1 6 5\n1 2 4\n1 2 3\n1 5 9\n2 4 9\n1 4 7\n1 6 2", "output": "8\n+----\n2\n+++++" }, { "input": "10 10 6\n2 1 4\n1 7 8\n1 6 4\n1 7 2\n1 6 2\n1 1 3\n1 9 7\n1 3 10\n1 9 6\n1 9 1", "output": "6\n-\n3\n+" }, { "input": "10 20 10\n2 7 3\n1 7 9\n1 3 6\n2 8 3\n2 9 2\n1 5 3\n2 9 8\n2 9 1\n1 5 9\n1 10 2\n1 6 7\n2 3 2\n2 8 1\n1 6 1\n2 4 6\n2 10 9\n2 5 7\n2 10 1\n1 2 7\n2 3 4", "output": "10\n---+----+-++\n4\n-++--+++++-+" }, { "input": "14 19 14\n2 5 7\n1 4 1\n2 9 8\n1 7 3\n2 14 2\n2 2 8\n2 6 7\n2 14 7\n1 7 8\n2 10 8\n2 11 10\n1 11 7\n2 3 13\n1 5 4\n1 14 8\n2 3 1\n2 6 1\n2 6 10\n2 8 1", "output": "13\n--+--+--+---+\n2\n++-++-++++++-" }, { "input": "300000 1 5345\n2 5345 23423", "output": "2\n+\n1\n-" }, { "input": "2 5 1\n1 1 2\n1 1 2\n1 1 2\n2 1 2\n1 1 2", "output": "2\n+\n2\n+" }, { "input": "2 5 2\n1 1 2\n1 1 2\n1 1 2\n2 1 2\n1 1 2", "output": "2\n-\n1\n+" }, { "input": "2 5 2\n2 1 2\n2 1 2\n2 1 2\n2 1 2\n2 1 2", "output": "2\n-----\n1\n+++++" }, { "input": "2 5 2\n1 1 2\n1 1 2\n1 2 1\n2 1 2\n1 2 1", "output": "2\n-\n2\n+" }, { "input": "2 5 1\n1 1 2\n1 1 2\n1 2 1\n2 1 2\n1 2 1", "output": "2\n+\n2\n+" }, { "input": "2 2 1\n2 1 2\n2 2 1", "output": "2\n+-\n1\n-+" }, { "input": "2 5 1\n2 1 2\n2 1 2\n2 1 2\n2 1 2\n2 1 2", "output": "2\n+++++\n1\n-----" } ]
1,596,468,389
2,147,483,647
PyPy 3
OK
TESTS
141
2,963
69,222,400
def put(): return map(int, input().split()) def dfs(x,flag=1): s,vis,ans = [x],[0]*n,['+']*m vis[x]= 1 while s: i = s.pop() for j,k in graph[i]: if vis[j]==0: if k*flag<0: ans[abs(k)-1]='-' elif k*flag>0: ans[abs(k)-1]='+' if flag==1 or k==0: s.append(j) vis[j]=1 return ''.join(ans), sum(vis) n,m,s = put() graph = [[] for i in range(n)] k=1 for _ in range(m): z,x,y = put() x,y = x-1,y-1 if z==1: graph[x].append((y, 0)) else: graph[x].append((y, k)) graph[y].append((x,-k)) k+=1 m = k-1 x,y = dfs(s-1, 1) print(y) print(x) x,y = dfs(s-1,-1) print(y) print(x)
Title: Orientation of Edges Time Limit: None seconds Memory Limit: None megabytes Problem Description: Vasya has a graph containing both directed (oriented) and undirected (non-oriented) edges. There can be multiple edges between a pair of vertices. Vasya has picked a vertex *s* from the graph. Now Vasya wants to create two separate plans: 1. to orient each undirected edge in one of two possible directions to maximize number of vertices reachable from vertex *s*; 1. to orient each undirected edge in one of two possible directions to minimize number of vertices reachable from vertex *s*. In each of two plans each undirected edge must become directed. For an edge chosen directions can differ in two plans. Help Vasya find the plans. Input Specification: The first line contains three integers *n*, *m* and *s* (2<=≤<=*n*<=≤<=3·105, 1<=≤<=*m*<=≤<=3·105, 1<=≤<=*s*<=≤<=*n*) — number of vertices and edges in the graph, and the vertex Vasya has picked. The following *m* lines contain information about the graph edges. Each line contains three integers *t**i*, *u**i* and *v**i* (1<=≤<=*t**i*<=≤<=2, 1<=≤<=*u**i*,<=*v**i*<=≤<=*n*, *u**i*<=≠<=*v**i*) — edge type and vertices connected by the edge. If *t**i*<==<=1 then the edge is directed and goes from the vertex *u**i* to the vertex *v**i*. If *t**i*<==<=2 then the edge is undirected and it connects the vertices *u**i* and *v**i*. It is guaranteed that there is at least one undirected edge in the graph. Output Specification: The first two lines should describe the plan which maximizes the number of reachable vertices. The lines three and four should describe the plan which minimizes the number of reachable vertices. A description of each plan should start with a line containing the number of reachable vertices. The second line of a plan should consist of *f* symbols '+' and '-', where *f* is the number of undirected edges in the initial graph. Print '+' as the *j*-th symbol of the string if the *j*-th undirected edge (*u*,<=*v*) from the input should be oriented from *u* to *v*. Print '-' to signify the opposite direction (from *v* to *u*). Consider undirected edges to be numbered in the same order they are given in the input. If there are multiple solutions, print any of them. Demo Input: ['2 2 1\n1 1 2\n2 2 1\n', '6 6 3\n2 2 6\n1 4 5\n2 3 4\n1 4 1\n1 3 1\n2 2 3\n'] Demo Output: ['2\n-\n2\n+\n', '6\n++-\n2\n+-+\n'] Note: none
```python def put(): return map(int, input().split()) def dfs(x,flag=1): s,vis,ans = [x],[0]*n,['+']*m vis[x]= 1 while s: i = s.pop() for j,k in graph[i]: if vis[j]==0: if k*flag<0: ans[abs(k)-1]='-' elif k*flag>0: ans[abs(k)-1]='+' if flag==1 or k==0: s.append(j) vis[j]=1 return ''.join(ans), sum(vis) n,m,s = put() graph = [[] for i in range(n)] k=1 for _ in range(m): z,x,y = put() x,y = x-1,y-1 if z==1: graph[x].append((y, 0)) else: graph[x].append((y, k)) graph[y].append((x,-k)) k+=1 m = k-1 x,y = dfs(s-1, 1) print(y) print(x) x,y = dfs(s-1,-1) print(y) print(x) ```
3
615
A
Bulbs
PROGRAMMING
800
[ "implementation" ]
null
null
Vasya wants to turn on Christmas lights consisting of *m* bulbs. Initially, all bulbs are turned off. There are *n* buttons, each of them is connected to some set of bulbs. Vasya can press any of these buttons. When the button is pressed, it turns on all the bulbs it's connected to. Can Vasya light up all the bulbs? If Vasya presses the button such that some bulbs connected to it are already turned on, they do not change their state, i.e. remain turned on.
The first line of the input contains integers *n* and *m* (1<=≤<=*n*,<=*m*<=≤<=100) — the number of buttons and the number of bulbs respectively. Each of the next *n* lines contains *x**i* (0<=≤<=*x**i*<=≤<=*m*) — the number of bulbs that are turned on by the *i*-th button, and then *x**i* numbers *y**ij* (1<=≤<=*y**ij*<=≤<=*m*) — the numbers of these bulbs.
If it's possible to turn on all *m* bulbs print "YES", otherwise print "NO".
[ "3 4\n2 1 4\n3 1 3 1\n1 2\n", "3 3\n1 1\n1 2\n1 1\n" ]
[ "YES\n", "NO\n" ]
In the first sample you can press each button once and turn on all the bulbs. In the 2 sample it is impossible to turn on the 3-rd lamp.
500
[ { "input": "3 4\n2 1 4\n3 1 3 1\n1 2", "output": "YES" }, { "input": "3 3\n1 1\n1 2\n1 1", "output": "NO" }, { "input": "3 4\n1 1\n1 2\n1 3", "output": "NO" }, { "input": "1 5\n5 1 2 3 4 5", "output": "YES" }, { "input": "1 5\n5 4 4 1 2 3", "output": "NO" }, { "input": "1 5\n5 1 1 1 1 5", "output": "NO" }, { "input": "2 5\n4 3 1 4 2\n4 2 3 4 5", "output": "YES" }, { "input": "5 7\n2 6 7\n5 1 1 1 1 1\n3 6 5 4\n0\n4 4 3 2 1", "output": "YES" }, { "input": "100 100\n0\n0\n0\n1 53\n0\n0\n1 34\n1 54\n0\n1 14\n0\n1 33\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n1 82\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n1 34\n0\n0\n1 26\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n1 34\n0\n0\n0\n0\n0\n1 3\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n1 40\n0\n0\n0\n1 26\n0\n0\n0\n0\n0\n1 97\n0\n1 5\n0\n0\n0\n0\n0", "output": "NO" }, { "input": "100 100\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0\n0", "output": "NO" }, { "input": "5 6\n3 1 2 6\n3 1 2 6\n1 1\n2 3 4\n3 1 5 6", "output": "YES" }, { "input": "5 2\n1 1\n1 1\n1 1\n1 1\n1 1", "output": "NO" }, { "input": "1 4\n3 1 2 3", "output": "NO" }, { "input": "1 4\n3 2 3 4", "output": "NO" }, { "input": "2 4\n3 2 3 4\n1 1", "output": "YES" }, { "input": "2 4\n3 1 2 3\n1 4", "output": "YES" }, { "input": "5 1\n0\n0\n0\n0\n0", "output": "NO" }, { "input": "1 1\n0", "output": "NO" }, { "input": "1 10\n10 1 2 3 4 5 6 7 8 9 10", "output": "YES" }, { "input": "1 1\n1 1", "output": "YES" }, { "input": "1 100\n99 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99", "output": "NO" }, { "input": "1 3\n3 1 2 1", "output": "NO" }, { "input": "1 100\n100 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100", "output": "YES" } ]
1,663,553,241
2,147,483,647
Python 3
OK
TESTS
45
46
0
n, m = (int(i) for i in input().split()) s = set(range(1, m + 1)) for _ in range(n): x, *y = (int(i) for i in input().split()) for i in y: s.discard(i) res = "NO" if s else "YES" print(res)
Title: Bulbs Time Limit: None seconds Memory Limit: None megabytes Problem Description: Vasya wants to turn on Christmas lights consisting of *m* bulbs. Initially, all bulbs are turned off. There are *n* buttons, each of them is connected to some set of bulbs. Vasya can press any of these buttons. When the button is pressed, it turns on all the bulbs it's connected to. Can Vasya light up all the bulbs? If Vasya presses the button such that some bulbs connected to it are already turned on, they do not change their state, i.e. remain turned on. Input Specification: The first line of the input contains integers *n* and *m* (1<=≤<=*n*,<=*m*<=≤<=100) — the number of buttons and the number of bulbs respectively. Each of the next *n* lines contains *x**i* (0<=≤<=*x**i*<=≤<=*m*) — the number of bulbs that are turned on by the *i*-th button, and then *x**i* numbers *y**ij* (1<=≤<=*y**ij*<=≤<=*m*) — the numbers of these bulbs. Output Specification: If it's possible to turn on all *m* bulbs print "YES", otherwise print "NO". Demo Input: ['3 4\n2 1 4\n3 1 3 1\n1 2\n', '3 3\n1 1\n1 2\n1 1\n'] Demo Output: ['YES\n', 'NO\n'] Note: In the first sample you can press each button once and turn on all the bulbs. In the 2 sample it is impossible to turn on the 3-rd lamp.
```python n, m = (int(i) for i in input().split()) s = set(range(1, m + 1)) for _ in range(n): x, *y = (int(i) for i in input().split()) for i in y: s.discard(i) res = "NO" if s else "YES" print(res) ```
3
282
A
Bit++
PROGRAMMING
800
[ "implementation" ]
null
null
The classic programming language of Bitland is Bit++. This language is so peculiar and complicated. The language is that peculiar as it has exactly one variable, called *x*. Also, there are two operations: - Operation ++ increases the value of variable *x* by 1. - Operation -- decreases the value of variable *x* by 1. A statement in language Bit++ is a sequence, consisting of exactly one operation and one variable *x*. The statement is written without spaces, that is, it can only contain characters "+", "-", "X". Executing a statement means applying the operation it contains. A programme in Bit++ is a sequence of statements, each of them needs to be executed. Executing a programme means executing all the statements it contains. You're given a programme in language Bit++. The initial value of *x* is 0. Execute the programme and find its final value (the value of the variable when this programme is executed).
The first line contains a single integer *n* (1<=≤<=*n*<=≤<=150) — the number of statements in the programme. Next *n* lines contain a statement each. Each statement contains exactly one operation (++ or --) and exactly one variable *x* (denoted as letter «X»). Thus, there are no empty statements. The operation and the variable can be written in any order.
Print a single integer — the final value of *x*.
[ "1\n++X\n", "2\nX++\n--X\n" ]
[ "1\n", "0\n" ]
none
500
[ { "input": "1\n++X", "output": "1" }, { "input": "2\nX++\n--X", "output": "0" }, { "input": "3\n++X\n++X\n++X", "output": "3" }, { "input": "2\n--X\n--X", "output": "-2" }, { "input": "5\n++X\n--X\n++X\n--X\n--X", "output": "-1" }, { "input": "28\nX--\n++X\nX++\nX++\nX++\n--X\n--X\nX++\nX--\n++X\nX++\n--X\nX--\nX++\nX--\n++X\n++X\nX++\nX++\nX++\nX++\n--X\n++X\n--X\n--X\n--X\n--X\nX++", "output": "4" }, { "input": "94\nX++\nX++\n++X\n++X\nX--\n--X\nX++\n--X\nX++\n++X\nX++\n++X\n--X\n--X\n++X\nX++\n--X\nX--\nX--\n--X\nX--\nX--\n--X\n++X\n--X\nX--\nX--\nX++\n++X\n--X\nX--\n++X\n--X\n--X\nX--\nX--\nX++\nX++\nX--\nX++\nX--\nX--\nX--\n--X\nX--\nX--\nX--\nX++\n++X\nX--\n++X\nX++\n--X\n--X\n--X\n--X\n++X\nX--\n--X\n--X\n++X\nX--\nX--\nX++\n++X\nX++\n++X\n--X\n--X\nX--\n++X\nX--\nX--\n++X\n++X\n++X\n++X\nX++\n++X\n--X\nX++\n--X\n--X\n++X\n--X\nX++\n++X\nX++\n--X\nX--\nX--\n--X\n++X\nX++", "output": "-10" }, { "input": "56\n--X\nX--\n--X\n--X\nX--\nX--\n--X\nX++\n++X\n--X\nX++\nX--\n--X\n++X\n--X\nX--\nX--\n++X\nX--\nX--\n--X\n++X\n--X\n++X\n--X\nX++\n++X\nX++\n--X\n++X\nX++\nX++\n--X\nX++\nX--\n--X\nX--\n--X\nX++\n++X\n--X\n++X\nX++\nX--\n--X\n--X\n++X\nX--\nX--\n--X\nX--\n--X\nX++\n--X\n++X\n--X", "output": "-14" }, { "input": "59\nX--\n--X\nX++\n++X\nX--\n--X\n--X\n++X\n++X\n++X\n++X\nX++\n++X\n++X\nX++\n--X\nX--\nX++\n++X\n--X\nX++\n--X\n++X\nX++\n--X\n--X\nX++\nX++\n--X\nX++\nX++\nX++\nX--\nX--\n--X\nX++\nX--\nX--\n++X\nX--\nX++\n--X\nX++\nX--\nX--\nX--\nX--\n++X\n--X\nX++\nX++\nX--\nX++\n++X\nX--\nX++\nX--\nX--\n++X", "output": "3" }, { "input": "87\n--X\n++X\n--X\nX++\n--X\nX--\n--X\n++X\nX--\n++X\n--X\n--X\nX++\n--X\nX--\nX++\n++X\n--X\n++X\n++X\n--X\n++X\n--X\nX--\n++X\n++X\nX--\nX++\nX++\n--X\n--X\n++X\nX--\n--X\n++X\n--X\nX++\n--X\n--X\nX--\n++X\n++X\n--X\nX--\nX--\nX--\nX--\nX--\nX++\n--X\n++X\n--X\nX++\n++X\nX++\n++X\n--X\nX++\n++X\nX--\n--X\nX++\n++X\nX++\nX++\n--X\n--X\n++X\n--X\nX++\nX++\n++X\nX++\nX++\nX++\nX++\n--X\n--X\n--X\n--X\n--X\n--X\n--X\nX--\n--X\n++X\n++X", "output": "-5" }, { "input": "101\nX++\nX++\nX++\n++X\n--X\nX--\nX++\nX--\nX--\n--X\n--X\n++X\nX++\n++X\n++X\nX--\n--X\n++X\nX++\nX--\n++X\n--X\n--X\n--X\n++X\n--X\n++X\nX++\nX++\n++X\n--X\nX++\nX--\nX++\n++X\n++X\nX--\nX--\nX--\nX++\nX++\nX--\nX--\nX++\n++X\n++X\n++X\n--X\n--X\n++X\nX--\nX--\n--X\n++X\nX--\n++X\nX++\n++X\nX--\nX--\n--X\n++X\n--X\n++X\n++X\n--X\nX++\n++X\nX--\n++X\nX--\n++X\nX++\nX--\n++X\nX++\n--X\nX++\nX++\n++X\n--X\n++X\n--X\nX++\n--X\nX--\n--X\n++X\n++X\n++X\n--X\nX--\nX--\nX--\nX--\n--X\n--X\n--X\n++X\n--X\n--X", "output": "1" }, { "input": "63\n--X\nX--\n++X\n--X\n++X\nX++\n--X\n--X\nX++\n--X\n--X\nX++\nX--\nX--\n--X\n++X\nX--\nX--\nX++\n++X\nX++\nX++\n--X\n--X\n++X\nX--\nX--\nX--\n++X\nX++\nX--\n--X\nX--\n++X\n++X\nX++\n++X\nX++\nX++\n--X\nX--\n++X\nX--\n--X\nX--\nX--\nX--\n++X\n++X\n++X\n++X\nX++\nX++\n++X\n--X\n--X\n++X\n++X\n++X\nX--\n++X\n++X\nX--", "output": "1" }, { "input": "45\n--X\n++X\nX--\n++X\n++X\nX++\n--X\n--X\n--X\n--X\n--X\n--X\n--X\nX++\n++X\nX--\n++X\n++X\nX--\nX++\nX--\n--X\nX--\n++X\n++X\n--X\n--X\nX--\nX--\n--X\n++X\nX--\n--X\n++X\n++X\n--X\n--X\nX--\n++X\n++X\nX++\nX++\n++X\n++X\nX++", "output": "-3" }, { "input": "21\n++X\nX++\n--X\nX--\nX++\n++X\n--X\nX--\nX++\nX--\nX--\nX--\nX++\n++X\nX++\n++X\n--X\nX--\n--X\nX++\n++X", "output": "1" }, { "input": "100\n--X\n++X\nX++\n++X\nX--\n++X\nX--\nX++\n--X\nX++\nX--\nX--\nX--\n++X\nX--\nX++\nX++\n++X\nX++\nX++\nX++\nX++\n++X\nX++\n++X\nX--\n--X\n++X\nX--\n--X\n++X\n++X\nX--\nX++\nX++\nX++\n++X\n--X\n++X\nX++\nX--\n++X\n++X\n--X\n++X\nX--\nX--\nX--\nX++\nX--\nX--\nX++\nX++\n--X\nX++\nX++\n--X\nX--\n--X\n++X\n--X\n++X\n++X\nX--\n--X\n++X\n++X\n--X\n--X\n++X\nX++\nX--\nX++\nX--\nX++\nX++\n--X\nX--\nX--\n++X\nX--\n--X\n--X\nX++\n--X\n--X\nX--\nX--\n++X\n++X\nX--\n++X\nX++\n--X\n++X\n++X\nX++\n--X\n--X\nX++", "output": "8" }, { "input": "17\nX++\nX++\n++X\n--X\n--X\n++X\n++X\n--X\nX--\nX++\nX--\n--X\n--X\nX--\n++X\nX--\nX++", "output": "-1" }, { "input": "77\n++X\nX++\n--X\nX--\n--X\n--X\nX--\nX++\nX--\nX++\nX--\n++X\n--X\n--X\n--X\n--X\n++X\nX--\nX++\nX--\n--X\nX--\n--X\nX--\n++X\n--X\n++X\n++X\nX++\nX++\nX--\n--X\nX--\nX--\nX++\n--X\n--X\n++X\nX--\nX--\n++X\nX++\nX--\n++X\n--X\nX++\nX--\n++X\n++X\n++X\nX--\nX--\nX--\n--X\n++X\n++X\n++X\nX++\n--X\n--X\n++X\n--X\nX--\nX++\n++X\nX++\n++X\nX--\nX++\nX++\n--X\nX++\nX++\nX++\n--X\nX++\nX--", "output": "-5" }, { "input": "21\nX--\n++X\n--X\nX--\n++X\nX--\n++X\nX--\n--X\n++X\nX++\n++X\nX++\n++X\nX--\n--X\nX++\nX++\nX--\n++X\nX--", "output": "1" }, { "input": "1\nX--", "output": "-1" } ]
1,698,072,447
2,147,483,647
Python 3
OK
TESTS
36
46
0
n = int(input()) operation_input = [list(map(str, input().split())) for i in range(n)] x = 0 operation_plus = [['++X'], ['X++']] operation_minus = [['--X'], ['X--']] for i in operation_input: if i in operation_plus: x += 1 if i in operation_minus: x -= 1 print(x)
Title: Bit++ Time Limit: None seconds Memory Limit: None megabytes Problem Description: The classic programming language of Bitland is Bit++. This language is so peculiar and complicated. The language is that peculiar as it has exactly one variable, called *x*. Also, there are two operations: - Operation ++ increases the value of variable *x* by 1. - Operation -- decreases the value of variable *x* by 1. A statement in language Bit++ is a sequence, consisting of exactly one operation and one variable *x*. The statement is written without spaces, that is, it can only contain characters "+", "-", "X". Executing a statement means applying the operation it contains. A programme in Bit++ is a sequence of statements, each of them needs to be executed. Executing a programme means executing all the statements it contains. You're given a programme in language Bit++. The initial value of *x* is 0. Execute the programme and find its final value (the value of the variable when this programme is executed). Input Specification: The first line contains a single integer *n* (1<=≤<=*n*<=≤<=150) — the number of statements in the programme. Next *n* lines contain a statement each. Each statement contains exactly one operation (++ or --) and exactly one variable *x* (denoted as letter «X»). Thus, there are no empty statements. The operation and the variable can be written in any order. Output Specification: Print a single integer — the final value of *x*. Demo Input: ['1\n++X\n', '2\nX++\n--X\n'] Demo Output: ['1\n', '0\n'] Note: none
```python n = int(input()) operation_input = [list(map(str, input().split())) for i in range(n)] x = 0 operation_plus = [['++X'], ['X++']] operation_minus = [['--X'], ['X--']] for i in operation_input: if i in operation_plus: x += 1 if i in operation_minus: x -= 1 print(x) ```
3
218
B
Airport
PROGRAMMING
1,100
[ "implementation" ]
null
null
Lolek and Bolek are about to travel abroad by plane. The local airport has a special "Choose Your Plane" offer. The offer's conditions are as follows: - it is up to a passenger to choose a plane to fly on; - if the chosen plane has *x* (*x*<=&gt;<=0) empty seats at the given moment, then the ticket for such a plane costs *x* zlotys (units of Polish currency). The only ticket office of the airport already has a queue of *n* passengers in front of it. Lolek and Bolek have not stood in the queue yet, but they are already wondering what is the maximum and the minimum number of zlotys the airport administration can earn if all *n* passengers buy tickets according to the conditions of this offer? The passengers buy tickets in turn, the first person in the queue goes first, then goes the second one, and so on up to *n*-th person.
The first line contains two integers *n* and *m* (1<=≤<=*n*,<=*m*<=≤<=1000) — the number of passengers in the queue and the number of planes in the airport, correspondingly. The next line contains *m* integers *a*1,<=*a*2,<=...,<=*a**m* (1<=≤<=*a**i*<=≤<=1000) — *a**i* stands for the number of empty seats in the *i*-th plane before the ticket office starts selling tickets. The numbers in the lines are separated by a space. It is guaranteed that there are at least *n* empty seats in total.
Print two integers — the maximum and the minimum number of zlotys that the airport administration can earn, correspondingly.
[ "4 3\n2 1 1\n", "4 3\n2 2 2\n" ]
[ "5 5\n", "7 6\n" ]
In the first test sample the number of passengers is equal to the number of empty seats, so regardless of the way the planes are chosen, the administration will earn the same sum. In the second sample the sum is maximized if the 1-st person in the queue buys a ticket to the 1-st plane, the 2-nd person — to the 2-nd plane, the 3-rd person — to the 3-rd plane, the 4-th person — to the 1-st plane. The sum is minimized if the 1-st person in the queue buys a ticket to the 1-st plane, the 2-nd person — to the 1-st plane, the 3-rd person — to the 2-nd plane, the 4-th person — to the 2-nd plane.
500
[ { "input": "4 3\n2 1 1", "output": "5 5" }, { "input": "4 3\n2 2 2", "output": "7 6" }, { "input": "10 5\n10 3 3 1 2", "output": "58 26" }, { "input": "10 1\n10", "output": "55 55" }, { "input": "10 1\n100", "output": "955 955" }, { "input": "10 2\n4 7", "output": "37 37" }, { "input": "40 10\n1 2 3 4 5 6 7 10 10 10", "output": "223 158" }, { "input": "1 1\n6", "output": "6 6" }, { "input": "1 2\n10 9", "output": "10 9" }, { "input": "2 1\n7", "output": "13 13" }, { "input": "2 2\n7 2", "output": "13 3" }, { "input": "3 2\n4 7", "output": "18 9" }, { "input": "3 3\n2 1 1", "output": "4 4" }, { "input": "3 3\n2 1 1", "output": "4 4" }, { "input": "10 10\n3 1 2 2 1 1 2 1 2 3", "output": "20 13" }, { "input": "10 2\n7 3", "output": "34 34" }, { "input": "10 1\n19", "output": "145 145" }, { "input": "100 3\n29 36 35", "output": "1731 1731" }, { "input": "100 5\n3 38 36 35 2", "output": "2019 1941" }, { "input": "510 132\n50 76 77 69 94 30 47 65 14 62 18 121 26 35 49 17 105 93 47 16 78 3 7 74 7 37 30 36 30 83 71 113 7 58 86 10 65 57 34 102 55 44 43 47 106 44 115 75 109 70 47 45 16 57 62 55 20 88 74 40 45 84 41 1 9 53 65 25 67 31 115 2 63 51 123 70 65 65 18 14 75 14 103 26 117 105 36 104 81 37 35 61 44 90 71 70 88 89 26 21 64 77 89 16 87 99 13 79 27 3 46 120 116 11 14 17 32 70 113 94 108 57 29 100 53 48 44 29 70 30 32 62", "output": "50279 5479" }, { "input": "510 123\n5 2 3 2 5 7 2 3 1 3 6 6 3 1 5 3 5 6 2 2 1 5 5 5 2 2 3 1 6 3 5 8 4 6 1 5 4 5 1 6 5 5 3 6 4 1 6 1 3 5 2 7 5 2 4 4 5 6 5 5 4 3 4 6 5 4 4 3 5 8 5 5 6 3 1 7 4 4 3 3 5 3 6 3 3 6 2 5 3 2 4 5 4 5 2 2 4 4 4 7 3 4 6 5 3 6 4 7 1 6 5 7 6 5 7 3 7 4 4 1 6 6 4", "output": "1501 1501" }, { "input": "610 33\n15 44 8 8 17 11 39 39 38 25 17 36 17 25 21 37 10 11 34 30 29 50 29 50 4 20 32 13 41 14 2 11 2", "output": "12204 8871" } ]
1,598,853,243
2,147,483,647
Python 3
OK
TESTS
33
966
6,963,200
#!/usr/bin/env python3 if __name__ == "__main__": n, m = map(int, input().split()) ais = list(map(int, input().split())) ris = sorted(ais, reverse=True) ais.sort() maxx = 0 minn = 0 for _ in range(n): maxx += ris[0] ris[0] -= 1 i = 0 while i < m - 1 and ris[i] < ris[i + 1]: ris[i], ris[i+1] = ris[i+1], ris[i] i += 1 i = 0 while n > 0: minn += ais[i] ais[i] -= 1 n -= 1 if ais[i] <= 0: i += 1 print(maxx, minn)
Title: Airport Time Limit: None seconds Memory Limit: None megabytes Problem Description: Lolek and Bolek are about to travel abroad by plane. The local airport has a special "Choose Your Plane" offer. The offer's conditions are as follows: - it is up to a passenger to choose a plane to fly on; - if the chosen plane has *x* (*x*<=&gt;<=0) empty seats at the given moment, then the ticket for such a plane costs *x* zlotys (units of Polish currency). The only ticket office of the airport already has a queue of *n* passengers in front of it. Lolek and Bolek have not stood in the queue yet, but they are already wondering what is the maximum and the minimum number of zlotys the airport administration can earn if all *n* passengers buy tickets according to the conditions of this offer? The passengers buy tickets in turn, the first person in the queue goes first, then goes the second one, and so on up to *n*-th person. Input Specification: The first line contains two integers *n* and *m* (1<=≤<=*n*,<=*m*<=≤<=1000) — the number of passengers in the queue and the number of planes in the airport, correspondingly. The next line contains *m* integers *a*1,<=*a*2,<=...,<=*a**m* (1<=≤<=*a**i*<=≤<=1000) — *a**i* stands for the number of empty seats in the *i*-th plane before the ticket office starts selling tickets. The numbers in the lines are separated by a space. It is guaranteed that there are at least *n* empty seats in total. Output Specification: Print two integers — the maximum and the minimum number of zlotys that the airport administration can earn, correspondingly. Demo Input: ['4 3\n2 1 1\n', '4 3\n2 2 2\n'] Demo Output: ['5 5\n', '7 6\n'] Note: In the first test sample the number of passengers is equal to the number of empty seats, so regardless of the way the planes are chosen, the administration will earn the same sum. In the second sample the sum is maximized if the 1-st person in the queue buys a ticket to the 1-st plane, the 2-nd person — to the 2-nd plane, the 3-rd person — to the 3-rd plane, the 4-th person — to the 1-st plane. The sum is minimized if the 1-st person in the queue buys a ticket to the 1-st plane, the 2-nd person — to the 1-st plane, the 3-rd person — to the 2-nd plane, the 4-th person — to the 2-nd plane.
```python #!/usr/bin/env python3 if __name__ == "__main__": n, m = map(int, input().split()) ais = list(map(int, input().split())) ris = sorted(ais, reverse=True) ais.sort() maxx = 0 minn = 0 for _ in range(n): maxx += ris[0] ris[0] -= 1 i = 0 while i < m - 1 and ris[i] < ris[i + 1]: ris[i], ris[i+1] = ris[i+1], ris[i] i += 1 i = 0 while n > 0: minn += ais[i] ais[i] -= 1 n -= 1 if ais[i] <= 0: i += 1 print(maxx, minn) ```
3