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Provide a correct Python 3 solution for this coding contest problem. There are N squares arranged in a row from left to right. The height of the i-th square from the left is H_i. For each square, you will perform either of the following operations once: * Decrease the height of the square by 1. * Do nothing. Dete...
instruction
0
78,913
8
157,826
"Correct Solution: ``` n=int(input()) h=list(map(int,input().split())) c=1 max_h=0 for i in h: if max_h>=i+2: c=0 max_h=max(max_h,i) print('Yes' if c==1 else 'No') ```
output
1
78,913
8
157,827
Provide a correct Python 3 solution for this coding contest problem. There are N squares arranged in a row from left to right. The height of the i-th square from the left is H_i. For each square, you will perform either of the following operations once: * Decrease the height of the square by 1. * Do nothing. Dete...
instruction
0
78,914
8
157,828
"Correct Solution: ``` N = int(input()) H = list(map(int,input().split())) for i in range(N-1,0,-1): if H[i] < H[i-1] : H[i-1] -= 1 if sorted(H) != H: print('No') else: print('Yes') ```
output
1
78,914
8
157,829
Provide a correct Python 3 solution for this coding contest problem. There are N squares arranged in a row from left to right. The height of the i-th square from the left is H_i. For each square, you will perform either of the following operations once: * Decrease the height of the square by 1. * Do nothing. Dete...
instruction
0
78,915
8
157,830
"Correct Solution: ``` n=int(input()) a=list(map(int, input().split())) ans='Yes' now=a[0]-1 for i in a: if now>i: ans='No' now=max(now, i-1) print(ans) ```
output
1
78,915
8
157,831
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. There are N squares arranged in a row from left to right. The height of the i-th square from the left is H_i. For each square, you will perform either of the following operations once: * Decre...
instruction
0
78,916
8
157,832
Yes
output
1
78,916
8
157,833
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. There are N squares arranged in a row from left to right. The height of the i-th square from the left is H_i. For each square, you will perform either of the following operations once: * Decre...
instruction
0
78,917
8
157,834
Yes
output
1
78,917
8
157,835
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. There are N squares arranged in a row from left to right. The height of the i-th square from the left is H_i. For each square, you will perform either of the following operations once: * Decre...
instruction
0
78,918
8
157,836
Yes
output
1
78,918
8
157,837
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. There are N squares arranged in a row from left to right. The height of the i-th square from the left is H_i. For each square, you will perform either of the following operations once: * Decre...
instruction
0
78,919
8
157,838
Yes
output
1
78,919
8
157,839
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. There are N squares arranged in a row from left to right. The height of the i-th square from the left is H_i. For each square, you will perform either of the following operations once: * Decre...
instruction
0
78,920
8
157,840
No
output
1
78,920
8
157,841
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. There are N squares arranged in a row from left to right. The height of the i-th square from the left is H_i. For each square, you will perform either of the following operations once: * Decre...
instruction
0
78,921
8
157,842
No
output
1
78,921
8
157,843
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. There are N squares arranged in a row from left to right. The height of the i-th square from the left is H_i. For each square, you will perform either of the following operations once: * Decre...
instruction
0
78,922
8
157,844
No
output
1
78,922
8
157,845
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. There are N squares arranged in a row from left to right. The height of the i-th square from the left is H_i. For each square, you will perform either of the following operations once: * Decre...
instruction
0
78,923
8
157,846
No
output
1
78,923
8
157,847
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Igor has fallen in love with Tanya. Now Igor wants to show his feelings and write a number on the fence opposite to Tanya's house. Igor thinks that the larger the number is, the more chance to w...
instruction
0
79,458
8
158,916
Yes
output
1
79,458
8
158,917
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Igor has fallen in love with Tanya. Now Igor wants to show his feelings and write a number on the fence opposite to Tanya's house. Igor thinks that the larger the number is, the more chance to w...
instruction
0
79,459
8
158,918
Yes
output
1
79,459
8
158,919
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Igor has fallen in love with Tanya. Now Igor wants to show his feelings and write a number on the fence opposite to Tanya's house. Igor thinks that the larger the number is, the more chance to w...
instruction
0
79,460
8
158,920
Yes
output
1
79,460
8
158,921
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Igor has fallen in love with Tanya. Now Igor wants to show his feelings and write a number on the fence opposite to Tanya's house. Igor thinks that the larger the number is, the more chance to w...
instruction
0
79,461
8
158,922
Yes
output
1
79,461
8
158,923
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Igor has fallen in love with Tanya. Now Igor wants to show his feelings and write a number on the fence opposite to Tanya's house. Igor thinks that the larger the number is, the more chance to w...
instruction
0
79,462
8
158,924
No
output
1
79,462
8
158,925
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Igor has fallen in love with Tanya. Now Igor wants to show his feelings and write a number on the fence opposite to Tanya's house. Igor thinks that the larger the number is, the more chance to w...
instruction
0
79,463
8
158,926
No
output
1
79,463
8
158,927
Provide a correct Python 3 solution for this coding contest problem. There is a data which provides heights (in meter) of mountains. The data is only for ten mountains. Write a program which prints heights of the top three mountains in descending order. Constraints 0 ≤ height of mountain (integer) ≤ 10,000 Input ...
instruction
0
79,822
8
159,644
"Correct Solution: ``` x = [] for i in range(10): x.append(int(input())) x.sort() for i in reversed(range(7,10)): print(x[i]) ```
output
1
79,822
8
159,645
Provide a correct Python 3 solution for this coding contest problem. There is a data which provides heights (in meter) of mountains. The data is only for ten mountains. Write a program which prints heights of the top three mountains in descending order. Constraints 0 ≤ height of mountain (integer) ≤ 10,000 Input ...
instruction
0
79,825
8
159,650
"Correct Solution: ``` num = [int(input()) for i in range(10)] num.sort(reverse=True) for i in range(3): print(num[i]) ```
output
1
79,825
8
159,651
Provide tags and a correct Python 3 solution for this coding contest problem. On Bertown's main street n trees are growing, the tree number i has the height of ai meters (1 ≤ i ≤ n). By the arrival of the President of Berland these trees were decided to be changed so that their heights formed a beautiful sequence. Thi...
instruction
0
80,422
8
160,844
Tags: brute force Correct Solution: ``` n = int(input()) x = [n] * 4 ** 9 a = list(map(int,input().split())) for i in range(n): x[a[i] - min(i,n - i - 1)] -= 1 print(min(x[1 : 7 ** 6])) ```
output
1
80,422
8
160,845
Provide tags and a correct Python 3 solution for this coding contest problem. On Bertown's main street n trees are growing, the tree number i has the height of ai meters (1 ≤ i ≤ n). By the arrival of the President of Berland these trees were decided to be changed so that their heights formed a beautiful sequence. Thi...
instruction
0
80,423
8
160,846
Tags: brute force Correct Solution: ``` read = lambda: map(int, input().split()) n = int(input()) a = list(read()) b = [0] * n for i in range(n // 2): b[i] = b[n - i - 1] = i + 1 if n % 2: b[n // 2] = n // 2 + 1 from collections import Counter c = Counter() for i in range(n): if a[i] >= b[i]: c[a[i] - b[i]] += ...
output
1
80,423
8
160,847
Provide tags and a correct Python 3 solution for this coding contest problem. On Bertown's main street n trees are growing, the tree number i has the height of ai meters (1 ≤ i ≤ n). By the arrival of the President of Berland these trees were decided to be changed so that their heights formed a beautiful sequence. Thi...
instruction
0
80,424
8
160,848
Tags: brute force Correct Solution: ``` n=int(input()) l=list(map(int,input().split())) if n==1: print(0) else: d={} if n%2==0: x=[i+1 for i in range(n//2)] i=x[-1] while i>=1: x.append(i) i=i-1 else: x=[i+1 for i in range(n//2)] x.append(n...
output
1
80,424
8
160,849
Provide tags and a correct Python 3 solution for this coding contest problem. On Bertown's main street n trees are growing, the tree number i has the height of ai meters (1 ≤ i ≤ n). By the arrival of the President of Berland these trees were decided to be changed so that their heights formed a beautiful sequence. Thi...
instruction
0
80,425
8
160,850
Tags: brute force Correct Solution: ``` n = int(input()) a = [0] * 100005 l = list(map(int, input().split())) for i in range(n): a[l[i] - min(i, n - i - 1)] += 1 print(n - max(a[1::])) ```
output
1
80,425
8
160,851
Provide tags and a correct Python 3 solution for this coding contest problem. On Bertown's main street n trees are growing, the tree number i has the height of ai meters (1 ≤ i ≤ n). By the arrival of the President of Berland these trees were decided to be changed so that their heights formed a beautiful sequence. Thi...
instruction
0
80,426
8
160,852
Tags: brute force Correct Solution: ``` import math n=int(input()) a= list(map(int, input().split())) x=[n]*100001 for i in range(n): x[a[i]-min(n-i-1,i)]-=1 print (min(x[1:])) ```
output
1
80,426
8
160,853
Provide tags and a correct Python 3 solution for this coding contest problem. On Bertown's main street n trees are growing, the tree number i has the height of ai meters (1 ≤ i ≤ n). By the arrival of the President of Berland these trees were decided to be changed so that their heights formed a beautiful sequence. Thi...
instruction
0
80,427
8
160,854
Tags: brute force Correct Solution: ``` n=int(input()) arr=[int(x) for x in input().split()] i=0;j=n-1 d=0 while i<j: arr[i]-=d arr[j]-=d d+=1 i+=1 j-=1 if i==j: arr[i]-=d dict={} for item in arr: if item not in dict: dict[item]=1 else: dict[item]+=1 m=0 for key,val in di...
output
1
80,427
8
160,855
Provide tags and a correct Python 3 solution for this coding contest problem. On Bertown's main street n trees are growing, the tree number i has the height of ai meters (1 ≤ i ≤ n). By the arrival of the President of Berland these trees were decided to be changed so that their heights formed a beautiful sequence. Thi...
instruction
0
80,428
8
160,856
Tags: brute force Correct Solution: ``` n=int(input()) l=list(map(int,input().split())) d=[n]*(100001) for i in range(n): d[l[i]-min(n-i-1,i)]-=1 print(min(d[1:])) ```
output
1
80,428
8
160,857
Provide tags and a correct Python 3 solution for this coding contest problem. On Bertown's main street n trees are growing, the tree number i has the height of ai meters (1 ≤ i ≤ n). By the arrival of the President of Berland these trees were decided to be changed so that their heights formed a beautiful sequence. Thi...
instruction
0
80,429
8
160,858
Tags: brute force Correct Solution: ``` n=int(input()); x=[n]*4**9; a=list(map(int,input().split())) for i in range(n): x[a[i]-min(i,n-i-1)]-=1 print(min(x[1:7**6])) ```
output
1
80,429
8
160,859
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. On Bertown's main street n trees are growing, the tree number i has the height of ai meters (1 ≤ i ≤ n). By the arrival of the President of Berland these trees were decided to be changed so that...
instruction
0
80,430
8
160,860
Yes
output
1
80,430
8
160,861
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. On Bertown's main street n trees are growing, the tree number i has the height of ai meters (1 ≤ i ≤ n). By the arrival of the President of Berland these trees were decided to be changed so that...
instruction
0
80,431
8
160,862
Yes
output
1
80,431
8
160,863
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. On Bertown's main street n trees are growing, the tree number i has the height of ai meters (1 ≤ i ≤ n). By the arrival of the President of Berland these trees were decided to be changed so that...
instruction
0
80,432
8
160,864
Yes
output
1
80,432
8
160,865
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. On Bertown's main street n trees are growing, the tree number i has the height of ai meters (1 ≤ i ≤ n). By the arrival of the President of Berland these trees were decided to be changed so that...
instruction
0
80,433
8
160,866
Yes
output
1
80,433
8
160,867
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. On Bertown's main street n trees are growing, the tree number i has the height of ai meters (1 ≤ i ≤ n). By the arrival of the President of Berland these trees were decided to be changed so that...
instruction
0
80,434
8
160,868
No
output
1
80,434
8
160,869
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. On Bertown's main street n trees are growing, the tree number i has the height of ai meters (1 ≤ i ≤ n). By the arrival of the President of Berland these trees were decided to be changed so that...
instruction
0
80,435
8
160,870
No
output
1
80,435
8
160,871
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. On Bertown's main street n trees are growing, the tree number i has the height of ai meters (1 ≤ i ≤ n). By the arrival of the President of Berland these trees were decided to be changed so that...
instruction
0
80,436
8
160,872
No
output
1
80,436
8
160,873
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. On Bertown's main street n trees are growing, the tree number i has the height of ai meters (1 ≤ i ≤ n). By the arrival of the President of Berland these trees were decided to be changed so that...
instruction
0
80,437
8
160,874
No
output
1
80,437
8
160,875
Provide tags and a correct Python 3 solution for this coding contest problem. Little penguin Polo loves his home village. The village has n houses, indexed by integers from 1 to n. Each house has a plaque containing an integer, the i-th house has a plaque containing integer pi (1 ≤ pi ≤ n). Little penguin Polo loves ...
instruction
0
81,093
8
162,186
Tags: combinatorics Correct Solution: ``` n,k=map(int,input().split()) M=10**9+7 print(k**~-k*pow(n-k,n-k,M)%M) ```
output
1
81,093
8
162,187
Provide tags and a correct Python 3 solution for this coding contest problem. Little penguin Polo loves his home village. The village has n houses, indexed by integers from 1 to n. Each house has a plaque containing an integer, the i-th house has a plaque containing integer pi (1 ≤ pi ≤ n). Little penguin Polo loves ...
instruction
0
81,094
8
162,188
Tags: combinatorics Correct Solution: ``` import sys,math,heapq,copy from collections import defaultdict,deque from bisect import bisect_left,bisect_right from functools import cmp_to_key from itertools import permutations,combinations,combinations_with_replacement # sys.setrecursionlimit(10**6) # sys.stdin=open('Input...
output
1
81,094
8
162,189
Provide tags and a correct Python 3 solution for this coding contest problem. Little penguin Polo loves his home village. The village has n houses, indexed by integers from 1 to n. Each house has a plaque containing an integer, the i-th house has a plaque containing integer pi (1 ≤ pi ≤ n). Little penguin Polo loves ...
instruction
0
81,096
8
162,192
Tags: combinatorics Correct Solution: ``` n, k = map(int, input().split()) m = 1000000007 print((pow(k, k - 1, m) * pow(n - k, n - k, m)) % m) ```
output
1
81,096
8
162,193
Provide tags and a correct Python 3 solution for this coding contest problem. Little penguin Polo loves his home village. The village has n houses, indexed by integers from 1 to n. Each house has a plaque containing an integer, the i-th house has a plaque containing integer pi (1 ≤ pi ≤ n). Little penguin Polo loves ...
instruction
0
81,097
8
162,194
Tags: combinatorics Correct Solution: ``` n, k = list(map(int, input().split())) MOD = int(1e9 + 7) lim = k total = list(range(lim)) ans = 0 def dfs(lst, reach, curr): reach[curr] = -2 nxt = lst[curr] if nxt == 0: reach[curr] = 1 return if reach[nxt] == -2: reach[curr] = 0 ...
output
1
81,097
8
162,195
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Little penguin Polo loves his home village. The village has n houses, indexed by integers from 1 to n. Each house has a plaque containing an integer, the i-th house has a plaque containing integ...
instruction
0
81,100
8
162,200
Yes
output
1
81,100
8
162,201
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Little penguin Polo loves his home village. The village has n houses, indexed by integers from 1 to n. Each house has a plaque containing an integer, the i-th house has a plaque containing integ...
instruction
0
81,101
8
162,202
Yes
output
1
81,101
8
162,203
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Little penguin Polo loves his home village. The village has n houses, indexed by integers from 1 to n. Each house has a plaque containing an integer, the i-th house has a plaque containing integ...
instruction
0
81,102
8
162,204
Yes
output
1
81,102
8
162,205
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Little penguin Polo loves his home village. The village has n houses, indexed by integers from 1 to n. Each house has a plaque containing an integer, the i-th house has a plaque containing integ...
instruction
0
81,103
8
162,206
Yes
output
1
81,103
8
162,207
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Little penguin Polo loves his home village. The village has n houses, indexed by integers from 1 to n. Each house has a plaque containing an integer, the i-th house has a plaque containing integ...
instruction
0
81,104
8
162,208
No
output
1
81,104
8
162,209
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Little penguin Polo loves his home village. The village has n houses, indexed by integers from 1 to n. Each house has a plaque containing an integer, the i-th house has a plaque containing integ...
instruction
0
81,105
8
162,210
No
output
1
81,105
8
162,211
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Little penguin Polo loves his home village. The village has n houses, indexed by integers from 1 to n. Each house has a plaque containing an integer, the i-th house has a plaque containing integ...
instruction
0
81,106
8
162,212
No
output
1
81,106
8
162,213
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Little penguin Polo loves his home village. The village has n houses, indexed by integers from 1 to n. Each house has a plaque containing an integer, the i-th house has a plaque containing integ...
instruction
0
81,107
8
162,214
No
output
1
81,107
8
162,215
Provide tags and a correct Python 3 solution for this coding contest problem. Dreamoon wants to climb up a stair of n steps. He can climb 1 or 2 steps at each move. Dreamoon wants the number of moves to be a multiple of an integer m. What is the minimal number of moves making him climb to the top of the stairs that ...
instruction
0
81,170
8
162,340
Tags: implementation, math Correct Solution: ``` import math a, b = list(map(int, input().split())) r = math.ceil(a/2) flag = 0 for i in range(r, a+1): if i % b == 0: flag = 1 break if flag == 1: print(i) else: print(-1) ```
output
1
81,170
8
162,341
Provide tags and a correct Python 3 solution for this coding contest problem. Dreamoon wants to climb up a stair of n steps. He can climb 1 or 2 steps at each move. Dreamoon wants the number of moves to be a multiple of an integer m. What is the minimal number of moves making him climb to the top of the stairs that ...
instruction
0
81,171
8
162,342
Tags: implementation, math Correct Solution: ``` """ x + 2y = n x + y : m x = n - 2y n - y : m """ import math n, m = map(int, input().split()) my_min = n for k in range(1, math.ceil(n / m)): y = n - m * k x = m * k - y if x >= 0 and y >= 0: if x + y < my_min: my_min = x + y if my_min ...
output
1
81,171
8
162,343
Provide tags and a correct Python 3 solution for this coding contest problem. Dreamoon wants to climb up a stair of n steps. He can climb 1 or 2 steps at each move. Dreamoon wants the number of moves to be a multiple of an integer m. What is the minimal number of moves making him climb to the top of the stairs that ...
instruction
0
81,172
8
162,344
Tags: implementation, math Correct Solution: ``` from math import ceil I = lambda :map(int,input().split()) n,m = I() if m > n: print(-1) exit() if m == n: print(m) exit() Move = range(ceil(n/2),n+1) for i in Move: if i%m==0: print(i) exit() print(-1) ```
output
1
81,172
8
162,345