message stringlengths 2 44.5k | message_type stringclasses 2
values | message_id int64 0 1 | conversation_id int64 42 109k | cluster float64 5 5 | __index_level_0__ int64 84 217k |
|---|---|---|---|---|---|
Provide tags and a correct Python 3 solution for this coding contest problem.
<image>
Input
The input contains two integers a1, a2 (0 ≤ ai ≤ 32), separated by a single space.
Output
Output a single integer.
Examples
Input
1 1
Output
0
Input
3 7
Output
0
Input
13 10
Output
1 | instruction | 0 | 32,820 | 5 | 65,640 |
Tags: *special, implementation
Correct Solution:
```
n1, n2 = map(int, input().split())
n2 = int(str(n2)[::-1])
print(n1+n2)
``` | output | 1 | 32,820 | 5 | 65,641 |
Provide tags and a correct Python 3 solution for this coding contest problem.
<image>
Input
The input contains two integers a1, a2 (0 ≤ ai ≤ 32), separated by a single space.
Output
Output a single integer.
Examples
Input
1 1
Output
0
Input
3 7
Output
0
Input
13 10
Output
1 | instruction | 0 | 32,821 | 5 | 65,642 |
Tags: *special, implementation
Correct Solution:
```
a, b = [x for x in input().split()]
print(int(a) + int(b[::-1]))
``` | output | 1 | 32,821 | 5 | 65,643 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
<image>
Input
The input contains two integers a1, a2 (0 ≤ ai ≤ 32), separated by a single space.
Output
Output a single integer.
Examples
Input
1 1
Output
0
Input
3 7
Output
0
Input
13 10
Output
1
Submitted Solution:
```
a =["111111101010101111100101001111111",
"100000100000000001010110001000001",
"101110100110110000011010001011101",
"101110101011001001111101001011101",
"101110101100011000111100101011101",
"100000101010101011010000101000001",
"111111101010101010101010101111111",
"000000001111101111100111100000000",
"100010111100100001011110111111001",
"110111001111111100100001000101100",
"011100111010000101000111010001010",
"011110000110001111110101100000011",
"111111111111111000111001001011000",
"111000010111010011010011010100100",
"101010100010110010110101010000010",
"101100000101010001111101000000000",
"000010100011001101000111101011010",
"101001001111101111000101010001110",
"101101111111000100100001110001000",
"000010011000100110000011010000010",
"001101101001101110010010011011000",
"011101011010001000111101010100110",
"111010100110011101001101000001110",
"110001010010101111000101111111000",
"001000111011100001010110111110000",
"000000001110010110100010100010110",
"111111101000101111000110101011010",
"100000100111010101111100100011011",
"101110101001010000101000111111000",
"101110100011010010010111111011010",
"101110100100011011110110101110000",
"100000100110011001111100111100000",
"111111101101000101001101110010001"]
c,b = list(map(int,input().split()))
print(a[c][b])
``` | instruction | 0 | 32,822 | 5 | 65,644 |
Yes | output | 1 | 32,822 | 5 | 65,645 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
<image>
Input
The input contains two integers a1, a2 (0 ≤ ai ≤ 32), separated by a single space.
Output
Output a single integer.
Examples
Input
1 1
Output
0
Input
3 7
Output
0
Input
13 10
Output
1
Submitted Solution:
```
a, b = input().split()
b = list(b)
b.reverse()
b = int("".join(b))
print(int(a) + b)
``` | instruction | 0 | 32,823 | 5 | 65,646 |
Yes | output | 1 | 32,823 | 5 | 65,647 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
<image>
Input
The input contains two integers a1, a2 (0 ≤ ai ≤ 32), separated by a single space.
Output
Output a single integer.
Examples
Input
1 1
Output
0
Input
3 7
Output
0
Input
13 10
Output
1
Submitted Solution:
```
n = input()
m = n.split()[1]
n = n.split()[0]
i, j = len(n), len(m)
k = max(i, j)
t = min(i, j)
s = 0
for i in range(k):
if i < t:
s += (int(n[-i - 1]) + int(m[i])) * 10 ** i
elif len(n) > len(m):
s += int(n[-i - 1]) * 10 ** i
else:
s += int(m[i]) * 10 ** i
print(s)
``` | instruction | 0 | 32,824 | 5 | 65,648 |
Yes | output | 1 | 32,824 | 5 | 65,649 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
<image>
Input
The input contains two integers a1, a2 (0 ≤ ai ≤ 32), separated by a single space.
Output
Output a single integer.
Examples
Input
1 1
Output
0
Input
3 7
Output
0
Input
13 10
Output
1
Submitted Solution:
```
n,m = input().split()
ln = len(n)
lm = len(m)
if(ln>lm):
m = m+"0"*(ln-lm)
else:
n = "0"*(lm-ln)+n
ans = ['0']*(len(n)+1)
y1 = 0
for i in range(len(n)):
x = str(int(m[i])+int(n[len(n)-i-1])+int(ans[len(n)-i]))
if(len(x)==1):
ans[len(n)-i]=x
else:
ans[len(n)-i]=x[1]
ans[len(n)-i-1]=str(int(x[0])+int(ans[len(n)-i-1]))
a = ''
for i in range(len(ans)):
a+=ans[i]
print(int(a))
``` | instruction | 0 | 32,825 | 5 | 65,650 |
Yes | output | 1 | 32,825 | 5 | 65,651 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
<image>
Input
The input contains two integers a1, a2 (0 ≤ ai ≤ 32), separated by a single space.
Output
Output a single integer.
Examples
Input
1 1
Output
0
Input
3 7
Output
0
Input
13 10
Output
1
Submitted Solution:
```
print (1)
``` | instruction | 0 | 32,826 | 5 | 65,652 |
No | output | 1 | 32,826 | 5 | 65,653 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
<image>
Input
The input contains two integers a1, a2 (0 ≤ ai ≤ 32), separated by a single space.
Output
Output a single integer.
Examples
Input
1 1
Output
0
Input
3 7
Output
0
Input
13 10
Output
1
Submitted Solution:
```
for x in range(100):
print(44+4*x)
``` | instruction | 0 | 32,827 | 5 | 65,654 |
No | output | 1 | 32,827 | 5 | 65,655 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
<image>
Input
The input contains two integers a1, a2 (0 ≤ ai ≤ 32), separated by a single space.
Output
Output a single integer.
Examples
Input
1 1
Output
0
Input
3 7
Output
0
Input
13 10
Output
1
Submitted Solution:
```
print("0")
``` | instruction | 0 | 32,828 | 5 | 65,656 |
No | output | 1 | 32,828 | 5 | 65,657 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
<image>
Input
The input contains two integers a1, a2 (0 ≤ ai ≤ 32), separated by a single space.
Output
Output a single integer.
Examples
Input
1 1
Output
0
Input
3 7
Output
0
Input
13 10
Output
1
Submitted Solution:
```
x,y = map(int, input().split())
dig0 = 0
y2 = 0
orig_y = y
if len(str(x)) < len(str(y)):
print(x * 10 ** abs(len(str(x)) - len(str(y))) + y)
else:
while y > 0:
dig = y % 10
y = y // 10
dig0 += dig
if dig0 > 0:
y2 = y2 * 10 + dig
else:
pass
print(x * 10 ** abs(len(str(x)) - len(str(orig_y))) + y2)
``` | instruction | 0 | 32,829 | 5 | 65,658 |
No | output | 1 | 32,829 | 5 | 65,659 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Levko loves tables that consist of n rows and n columns very much. He especially loves beautiful tables. A table is beautiful to Levko if the sum of elements in each row and column of the table equals k.
Unfortunately, he doesn't know any such table. Your task is to help him to find at least one of them.
Input
The single line contains two integers, n and k (1 ≤ n ≤ 100, 1 ≤ k ≤ 1000).
Output
Print any beautiful table. Levko doesn't like too big numbers, so all elements of the table mustn't exceed 1000 in their absolute value.
If there are multiple suitable tables, you are allowed to print any of them.
Examples
Input
2 4
Output
1 3
3 1
Input
4 7
Output
2 1 0 4
4 0 2 1
1 3 3 0
0 3 2 2
Note
In the first sample the sum in the first row is 1 + 3 = 4, in the second row — 3 + 1 = 4, in the first column — 1 + 3 = 4 and in the second column — 3 + 1 = 4. There are other beautiful tables for this sample.
In the second sample the sum of elements in each row and each column equals 7. Besides, there are other tables that meet the statement requirements.
Submitted Solution:
```
n, k = map(int, input().split())
mod = k % n
for i in range(n):
print(' '.join(map(str, [((k - mod) // n)] * (n - i - 1) + [((k - mod) // n + mod)] + [((k - mod) // n)] * i)))
``` | instruction | 0 | 32,869 | 5 | 65,738 |
Yes | output | 1 | 32,869 | 5 | 65,739 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Levko loves tables that consist of n rows and n columns very much. He especially loves beautiful tables. A table is beautiful to Levko if the sum of elements in each row and column of the table equals k.
Unfortunately, he doesn't know any such table. Your task is to help him to find at least one of them.
Input
The single line contains two integers, n and k (1 ≤ n ≤ 100, 1 ≤ k ≤ 1000).
Output
Print any beautiful table. Levko doesn't like too big numbers, so all elements of the table mustn't exceed 1000 in their absolute value.
If there are multiple suitable tables, you are allowed to print any of them.
Examples
Input
2 4
Output
1 3
3 1
Input
4 7
Output
2 1 0 4
4 0 2 1
1 3 3 0
0 3 2 2
Note
In the first sample the sum in the first row is 1 + 3 = 4, in the second row — 3 + 1 = 4, in the first column — 1 + 3 = 4 and in the second column — 3 + 1 = 4. There are other beautiful tables for this sample.
In the second sample the sum of elements in each row and each column equals 7. Besides, there are other tables that meet the statement requirements.
Submitted Solution:
```
n, k = map(int,input().split())
mat =[[0 for i in range(n)] for i in range(n)]
for i in range(n):
for j in range(n):
if(i==j):
mat[i][j] = k
for i in mat:
for j in i:
print(j, end=' ')
print()
``` | instruction | 0 | 32,870 | 5 | 65,740 |
Yes | output | 1 | 32,870 | 5 | 65,741 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Levko loves tables that consist of n rows and n columns very much. He especially loves beautiful tables. A table is beautiful to Levko if the sum of elements in each row and column of the table equals k.
Unfortunately, he doesn't know any such table. Your task is to help him to find at least one of them.
Input
The single line contains two integers, n and k (1 ≤ n ≤ 100, 1 ≤ k ≤ 1000).
Output
Print any beautiful table. Levko doesn't like too big numbers, so all elements of the table mustn't exceed 1000 in their absolute value.
If there are multiple suitable tables, you are allowed to print any of them.
Examples
Input
2 4
Output
1 3
3 1
Input
4 7
Output
2 1 0 4
4 0 2 1
1 3 3 0
0 3 2 2
Note
In the first sample the sum in the first row is 1 + 3 = 4, in the second row — 3 + 1 = 4, in the first column — 1 + 3 = 4 and in the second column — 3 + 1 = 4. There are other beautiful tables for this sample.
In the second sample the sum of elements in each row and each column equals 7. Besides, there are other tables that meet the statement requirements.
Submitted Solution:
```
import sys
# sys.stdin = open('input.txt','r')
n,k = map(int,input().split())
for i in range(n):
for j in range(n):
if i == j:
print(k,end=' ')
else:
print(0,end=' ')
print()
``` | instruction | 0 | 32,871 | 5 | 65,742 |
Yes | output | 1 | 32,871 | 5 | 65,743 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Levko loves tables that consist of n rows and n columns very much. He especially loves beautiful tables. A table is beautiful to Levko if the sum of elements in each row and column of the table equals k.
Unfortunately, he doesn't know any such table. Your task is to help him to find at least one of them.
Input
The single line contains two integers, n and k (1 ≤ n ≤ 100, 1 ≤ k ≤ 1000).
Output
Print any beautiful table. Levko doesn't like too big numbers, so all elements of the table mustn't exceed 1000 in their absolute value.
If there are multiple suitable tables, you are allowed to print any of them.
Examples
Input
2 4
Output
1 3
3 1
Input
4 7
Output
2 1 0 4
4 0 2 1
1 3 3 0
0 3 2 2
Note
In the first sample the sum in the first row is 1 + 3 = 4, in the second row — 3 + 1 = 4, in the first column — 1 + 3 = 4 and in the second column — 3 + 1 = 4. There are other beautiful tables for this sample.
In the second sample the sum of elements in each row and each column equals 7. Besides, there are other tables that meet the statement requirements.
Submitted Solution:
```
#import sys
#sys.stdin = open("input.in","r")
#sys.stdout = open("test.out","w")
a,b=map(int, input().split())
for i in range(a):
for j in range(a):
if i == j:
print(b, end=' ')
else:
print(0, end=' ')
print()
``` | instruction | 0 | 32,872 | 5 | 65,744 |
Yes | output | 1 | 32,872 | 5 | 65,745 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Levko loves tables that consist of n rows and n columns very much. He especially loves beautiful tables. A table is beautiful to Levko if the sum of elements in each row and column of the table equals k.
Unfortunately, he doesn't know any such table. Your task is to help him to find at least one of them.
Input
The single line contains two integers, n and k (1 ≤ n ≤ 100, 1 ≤ k ≤ 1000).
Output
Print any beautiful table. Levko doesn't like too big numbers, so all elements of the table mustn't exceed 1000 in their absolute value.
If there are multiple suitable tables, you are allowed to print any of them.
Examples
Input
2 4
Output
1 3
3 1
Input
4 7
Output
2 1 0 4
4 0 2 1
1 3 3 0
0 3 2 2
Note
In the first sample the sum in the first row is 1 + 3 = 4, in the second row — 3 + 1 = 4, in the first column — 1 + 3 = 4 and in the second column — 3 + 1 = 4. There are other beautiful tables for this sample.
In the second sample the sum of elements in each row and each column equals 7. Besides, there are other tables that meet the statement requirements.
Submitted Solution:
```
n, k = map(int, input().split())
a = []
for i in range(n-1):
a.append(n//k)
a.append(k-sum(a))
for i in range(n):
print(" ".join(map(str,a)))
``` | instruction | 0 | 32,873 | 5 | 65,746 |
No | output | 1 | 32,873 | 5 | 65,747 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Levko loves tables that consist of n rows and n columns very much. He especially loves beautiful tables. A table is beautiful to Levko if the sum of elements in each row and column of the table equals k.
Unfortunately, he doesn't know any such table. Your task is to help him to find at least one of them.
Input
The single line contains two integers, n and k (1 ≤ n ≤ 100, 1 ≤ k ≤ 1000).
Output
Print any beautiful table. Levko doesn't like too big numbers, so all elements of the table mustn't exceed 1000 in their absolute value.
If there are multiple suitable tables, you are allowed to print any of them.
Examples
Input
2 4
Output
1 3
3 1
Input
4 7
Output
2 1 0 4
4 0 2 1
1 3 3 0
0 3 2 2
Note
In the first sample the sum in the first row is 1 + 3 = 4, in the second row — 3 + 1 = 4, in the first column — 1 + 3 = 4 and in the second column — 3 + 1 = 4. There are other beautiful tables for this sample.
In the second sample the sum of elements in each row and each column equals 7. Besides, there are other tables that meet the statement requirements.
Submitted Solution:
```
x,y=map(int,input().split())
for i in range(x):
for j in range(x-1):
print(0,end=" ")
print(y,end="\n")
``` | instruction | 0 | 32,874 | 5 | 65,748 |
No | output | 1 | 32,874 | 5 | 65,749 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Levko loves tables that consist of n rows and n columns very much. He especially loves beautiful tables. A table is beautiful to Levko if the sum of elements in each row and column of the table equals k.
Unfortunately, he doesn't know any such table. Your task is to help him to find at least one of them.
Input
The single line contains two integers, n and k (1 ≤ n ≤ 100, 1 ≤ k ≤ 1000).
Output
Print any beautiful table. Levko doesn't like too big numbers, so all elements of the table mustn't exceed 1000 in their absolute value.
If there are multiple suitable tables, you are allowed to print any of them.
Examples
Input
2 4
Output
1 3
3 1
Input
4 7
Output
2 1 0 4
4 0 2 1
1 3 3 0
0 3 2 2
Note
In the first sample the sum in the first row is 1 + 3 = 4, in the second row — 3 + 1 = 4, in the first column — 1 + 3 = 4 and in the second column — 3 + 1 = 4. There are other beautiful tables for this sample.
In the second sample the sum of elements in each row and each column equals 7. Besides, there are other tables that meet the statement requirements.
Submitted Solution:
```
d,v = map(int,input().split())
list1 = [v]+[0]*(d-1)
ans = ''
for i in range(d):
for e in range(d):
ans += str(list1[e])
if e == d-1:
ans += '\n'
list1.insert(0,list1.pop())
print(ans)
``` | instruction | 0 | 32,875 | 5 | 65,750 |
No | output | 1 | 32,875 | 5 | 65,751 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Levko loves tables that consist of n rows and n columns very much. He especially loves beautiful tables. A table is beautiful to Levko if the sum of elements in each row and column of the table equals k.
Unfortunately, he doesn't know any such table. Your task is to help him to find at least one of them.
Input
The single line contains two integers, n and k (1 ≤ n ≤ 100, 1 ≤ k ≤ 1000).
Output
Print any beautiful table. Levko doesn't like too big numbers, so all elements of the table mustn't exceed 1000 in their absolute value.
If there are multiple suitable tables, you are allowed to print any of them.
Examples
Input
2 4
Output
1 3
3 1
Input
4 7
Output
2 1 0 4
4 0 2 1
1 3 3 0
0 3 2 2
Note
In the first sample the sum in the first row is 1 + 3 = 4, in the second row — 3 + 1 = 4, in the first column — 1 + 3 = 4 and in the second column — 3 + 1 = 4. There are other beautiful tables for this sample.
In the second sample the sum of elements in each row and each column equals 7. Besides, there are other tables that meet the statement requirements.
Submitted Solution:
```
n,k=list(map(int,input().split()))
p=[]
a=[0]*n
for i in range(0,n):
a[i]=k
p.append(a)
a[i]=1
for i in range(0,n):
w=""
for j in range(0,n):
w=w+str(p[i][j])+" "
print(w[:-1])
``` | instruction | 0 | 32,876 | 5 | 65,752 |
No | output | 1 | 32,876 | 5 | 65,753 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There is a polyline going through points (0, 0) – (x, x) – (2x, 0) – (3x, x) – (4x, 0) – ... - (2kx, 0) – (2kx + x, x) – ....
We know that the polyline passes through the point (a, b). Find minimum positive value x such that it is true or determine that there is no such x.
Input
Only one line containing two positive integers a and b (1 ≤ a, b ≤ 109).
Output
Output the only line containing the answer. Your answer will be considered correct if its relative or absolute error doesn't exceed 10 - 9. If there is no such x then output - 1 as the answer.
Examples
Input
3 1
Output
1.000000000000
Input
1 3
Output
-1
Input
4 1
Output
1.250000000000
Note
You can see following graphs for sample 1 and sample 3.
<image> <image>
Submitted Solution:
```
def get(x, y):
if x < 2 * y:
return float('inf')
p = int(x / y)
p -= p % 2
return x / p
x, y = map(int, input().split())
if y > x:
print(-1)
else:
x1 = x + y
x2 = x - y
ans1 = get(x1, y)
ans2 = get(x2, y)
ans = min(ans1, ans2)
if ans == float('inf'):
print(-1)
else:
print(ans)
``` | instruction | 0 | 32,964 | 5 | 65,928 |
Yes | output | 1 | 32,964 | 5 | 65,929 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There is a polyline going through points (0, 0) – (x, x) – (2x, 0) – (3x, x) – (4x, 0) – ... - (2kx, 0) – (2kx + x, x) – ....
We know that the polyline passes through the point (a, b). Find minimum positive value x such that it is true or determine that there is no such x.
Input
Only one line containing two positive integers a and b (1 ≤ a, b ≤ 109).
Output
Output the only line containing the answer. Your answer will be considered correct if its relative or absolute error doesn't exceed 10 - 9. If there is no such x then output - 1 as the answer.
Examples
Input
3 1
Output
1.000000000000
Input
1 3
Output
-1
Input
4 1
Output
1.250000000000
Note
You can see following graphs for sample 1 and sample 3.
<image> <image>
Submitted Solution:
```
a,b=map(int,input().split())
if(b>a):
print(-1)
elif(a==b):
print(a)
else:
d1=(a+b)/2
d2=(a-b)/2
d1=d1/(d1//b)
if(d2<b):
print(d1)
else:
d2=d2/(d2//b)
print(min(d1,d2))
``` | instruction | 0 | 32,965 | 5 | 65,930 |
Yes | output | 1 | 32,965 | 5 | 65,931 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There is a polyline going through points (0, 0) – (x, x) – (2x, 0) – (3x, x) – (4x, 0) – ... - (2kx, 0) – (2kx + x, x) – ....
We know that the polyline passes through the point (a, b). Find minimum positive value x such that it is true or determine that there is no such x.
Input
Only one line containing two positive integers a and b (1 ≤ a, b ≤ 109).
Output
Output the only line containing the answer. Your answer will be considered correct if its relative or absolute error doesn't exceed 10 - 9. If there is no such x then output - 1 as the answer.
Examples
Input
3 1
Output
1.000000000000
Input
1 3
Output
-1
Input
4 1
Output
1.250000000000
Note
You can see following graphs for sample 1 and sample 3.
<image> <image>
Submitted Solution:
```
from sys import stdout, stdin, setrecursionlimit
from bisect import insort,bisect_right,bisect_left
from io import BytesIO, IOBase
from collections import *
from itertools import *
from random import *
from string import *
from queue import *
from heapq import *
from math import *
from re import *
from os import *
####################################---fast-input-output----#########################################
class FastIO(IOBase):
newlines = 0
def __init__(self, file):
self._fd = file.fileno()
self.buffer = BytesIO()
self.writable = "x" in file.mode or "r" not in file.mode
self.write = self.buffer.write if self.writable else None
def read(self):
while True:
b = read(self._fd, max(fstat(self._fd).st_size, 8192))
if not b:
break
ptr = self.buffer.tell()
self.buffer.seek(0, 2), self.buffer.write(b), self.buffer.seek(ptr)
self.newlines = 0
return self.buffer.read()
def readline(self):
while self.newlines == 0:
b = read(self._fd, max(fstat(self._fd).st_size, 8192))
self.newlines = b.count(b"\n") + (not b)
ptr = self.buffer.tell()
self.buffer.seek(0, 2), self.buffer.write(b), self.buffer.seek(ptr)
self.newlines -= 1
return self.buffer.readline()
def flush(self):
if self.writable:
write(self._fd, self.buffer.getvalue())
self.buffer.truncate(0), self.buffer.seek(0)
class IOWrapper(IOBase):
def __init__(self, file):
self.buffer = FastIO(file)
self.flush = self.buffer.flush
self.writable = self.buffer.writable
self.write = lambda s: self.buffer.write(s.encode("ascii"))
self.read = lambda: self.buffer.read().decode("ascii")
self.readline = lambda: self.buffer.readline().decode("ascii")
stdin, stdout = IOWrapper(stdin), IOWrapper(stdout)
graph, mod, szzz = {}, 10**9 + 7, lambda: sorted(zzz())
def getStr(): return input()
def getInt(): return int(input())
def listStr(): return list(input())
def getStrs(): return input().split()
def isInt(s): return '0' <= s[0] <= '9'
def input(): return stdin.readline().strip()
def zzz(): return [int(i) for i in input().split()]
def output(answer, end='\n'): stdout.write(str(answer) + end)
def lcd(xnum1, xnum2): return (xnum1 * xnum2 // gcd(xnum1, xnum2))
dx = [-1, 1, 0, 0, 1, -1, 1, -1]
dy = [0, 0, 1, -1, 1, -1, -1, 1]
daysInMounth = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]
#################################################---Some Rule For Me To Follow---#################################
"""
--instants of Reading problem continuously try to understand them.
--If you Know some-one , Then you probably don't know him !
--Try & again try, maybe you're just one statement away!
"""
##################################################---START-CODING---###############################################
a,b=zzz()
if (a<b):print(-1)
else:print(((a+b)/2)/((a+b)//(2*b)))
``` | instruction | 0 | 32,966 | 5 | 65,932 |
Yes | output | 1 | 32,966 | 5 | 65,933 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There is a polyline going through points (0, 0) – (x, x) – (2x, 0) – (3x, x) – (4x, 0) – ... - (2kx, 0) – (2kx + x, x) – ....
We know that the polyline passes through the point (a, b). Find minimum positive value x such that it is true or determine that there is no such x.
Input
Only one line containing two positive integers a and b (1 ≤ a, b ≤ 109).
Output
Output the only line containing the answer. Your answer will be considered correct if its relative or absolute error doesn't exceed 10 - 9. If there is no such x then output - 1 as the answer.
Examples
Input
3 1
Output
1.000000000000
Input
1 3
Output
-1
Input
4 1
Output
1.250000000000
Note
You can see following graphs for sample 1 and sample 3.
<image> <image>
Submitted Solution:
```
#578A
from math import floor
[a,b] = list(map(float,input().split()))
if a < b:
print(-1)
elif a == b:
print(a)
else:
a1 = (a + b)/2
k1 = floor(a1/b)
x1 = a1/k1
a2 = (a - b)/2
k2 = floor(a2/b)
if k2 == 0:
x2 = a
else:
x2 = a2/k2
print(min(x1,x2))
``` | instruction | 0 | 32,967 | 5 | 65,934 |
Yes | output | 1 | 32,967 | 5 | 65,935 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There is a polyline going through points (0, 0) – (x, x) – (2x, 0) – (3x, x) – (4x, 0) – ... - (2kx, 0) – (2kx + x, x) – ....
We know that the polyline passes through the point (a, b). Find minimum positive value x such that it is true or determine that there is no such x.
Input
Only one line containing two positive integers a and b (1 ≤ a, b ≤ 109).
Output
Output the only line containing the answer. Your answer will be considered correct if its relative or absolute error doesn't exceed 10 - 9. If there is no such x then output - 1 as the answer.
Examples
Input
3 1
Output
1.000000000000
Input
1 3
Output
-1
Input
4 1
Output
1.250000000000
Note
You can see following graphs for sample 1 and sample 3.
<image> <image>
Submitted Solution:
```
x,y=[int(x) for x in input().split()]
if y>x:
print(-1)
else:
xmax = x+y
ymax = xmax/2
while 1:
if ymax<y:
print(ymax*2)
break
ymax/=2
``` | instruction | 0 | 32,969 | 5 | 65,938 |
No | output | 1 | 32,969 | 5 | 65,939 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There is a polyline going through points (0, 0) – (x, x) – (2x, 0) – (3x, x) – (4x, 0) – ... - (2kx, 0) – (2kx + x, x) – ....
We know that the polyline passes through the point (a, b). Find minimum positive value x such that it is true or determine that there is no such x.
Input
Only one line containing two positive integers a and b (1 ≤ a, b ≤ 109).
Output
Output the only line containing the answer. Your answer will be considered correct if its relative or absolute error doesn't exceed 10 - 9. If there is no such x then output - 1 as the answer.
Examples
Input
3 1
Output
1.000000000000
Input
1 3
Output
-1
Input
4 1
Output
1.250000000000
Note
You can see following graphs for sample 1 and sample 3.
<image> <image>
Submitted Solution:
```
from math import *
import sys
input=sys.stdin.readline
a,b=map(int,input().split())
if a<=b:
print(-1)
exit(0)
l=0
r=b+1
ans=-99999999999999999
while r-l>10**(-9):
mid=(l+r)/2
if (a-b)/(2*mid)>0 and int(ceil((a-b)/(2*mid)))==int(floor((a-b)/(2*mid))):
ans=mid
r=mid
elif (a+b)/(2*mid)>0 and int(ceil((a+b)/(2*mid)))==int(floor((a+b)/(2*mid))):
ans=mid
r=mid
else:
l=mid
#print(l,r,mid)
print(-1 if ans==-99999999999999999 else ans)
``` | instruction | 0 | 32,970 | 5 | 65,940 |
No | output | 1 | 32,970 | 5 | 65,941 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There is a polyline going through points (0, 0) – (x, x) – (2x, 0) – (3x, x) – (4x, 0) – ... - (2kx, 0) – (2kx + x, x) – ....
We know that the polyline passes through the point (a, b). Find minimum positive value x such that it is true or determine that there is no such x.
Input
Only one line containing two positive integers a and b (1 ≤ a, b ≤ 109).
Output
Output the only line containing the answer. Your answer will be considered correct if its relative or absolute error doesn't exceed 10 - 9. If there is no such x then output - 1 as the answer.
Examples
Input
3 1
Output
1.000000000000
Input
1 3
Output
-1
Input
4 1
Output
1.250000000000
Note
You can see following graphs for sample 1 and sample 3.
<image> <image>
Submitted Solution:
```
a, b = map(int, input().split())
min_val = 1e10
if a < b:
print(-1)
elif b == a:
print(a)
else:
sum_val = (a+b)/2
sub_val = (a-b)/2
while sub_val >= b:
min_val = min(min_val, sub_val)
sub_val /= 2
while sum_val >= b:
min_val = min(min_val,sum_val)
sum_val /= 2
print(min_val)
``` | instruction | 0 | 32,971 | 5 | 65,942 |
No | output | 1 | 32,971 | 5 | 65,943 |
Provide a correct Python 3 solution for this coding contest problem.
Given is a sequence of integers A_1, A_2, ..., A_N. If its elements are pairwise distinct, print `YES`; otherwise, print `NO`.
Constraints
* 2 ≤ N ≤ 200000
* 1 ≤ A_i ≤ 10^9
* All values in input are integers.
Input
Input is given from Standard Input in the following format:
N
A_1 ... A_N
Output
If the elements of the sequence are pairwise distinct, print `YES`; otherwise, print `NO`.
Examples
Input
5
2 6 1 4 5
Output
YES
Input
6
4 1 3 1 6 2
Output
NO
Input
2
10000000 10000000
Output
NO | instruction | 0 | 33,133 | 5 | 66,266 |
"Correct Solution:
```
n = int(input())
print("YES" if len(set(input().split())) == n else "NO")
``` | output | 1 | 33,133 | 5 | 66,267 |
Provide a correct Python 3 solution for this coding contest problem.
Given is a sequence of integers A_1, A_2, ..., A_N. If its elements are pairwise distinct, print `YES`; otherwise, print `NO`.
Constraints
* 2 ≤ N ≤ 200000
* 1 ≤ A_i ≤ 10^9
* All values in input are integers.
Input
Input is given from Standard Input in the following format:
N
A_1 ... A_N
Output
If the elements of the sequence are pairwise distinct, print `YES`; otherwise, print `NO`.
Examples
Input
5
2 6 1 4 5
Output
YES
Input
6
4 1 3 1 6 2
Output
NO
Input
2
10000000 10000000
Output
NO | instruction | 0 | 33,134 | 5 | 66,268 |
"Correct Solution:
```
n = int(input())
if len(set(input().split())) == n:
print('YES')
else:
print('NO')
``` | output | 1 | 33,134 | 5 | 66,269 |
Provide a correct Python 3 solution for this coding contest problem.
Given is a sequence of integers A_1, A_2, ..., A_N. If its elements are pairwise distinct, print `YES`; otherwise, print `NO`.
Constraints
* 2 ≤ N ≤ 200000
* 1 ≤ A_i ≤ 10^9
* All values in input are integers.
Input
Input is given from Standard Input in the following format:
N
A_1 ... A_N
Output
If the elements of the sequence are pairwise distinct, print `YES`; otherwise, print `NO`.
Examples
Input
5
2 6 1 4 5
Output
YES
Input
6
4 1 3 1 6 2
Output
NO
Input
2
10000000 10000000
Output
NO | instruction | 0 | 33,135 | 5 | 66,270 |
"Correct Solution:
```
n=int(input())
a=set(map(int,input().split()))
print("YES") if len(a)==n else print("NO")
``` | output | 1 | 33,135 | 5 | 66,271 |
Provide a correct Python 3 solution for this coding contest problem.
Given is a sequence of integers A_1, A_2, ..., A_N. If its elements are pairwise distinct, print `YES`; otherwise, print `NO`.
Constraints
* 2 ≤ N ≤ 200000
* 1 ≤ A_i ≤ 10^9
* All values in input are integers.
Input
Input is given from Standard Input in the following format:
N
A_1 ... A_N
Output
If the elements of the sequence are pairwise distinct, print `YES`; otherwise, print `NO`.
Examples
Input
5
2 6 1 4 5
Output
YES
Input
6
4 1 3 1 6 2
Output
NO
Input
2
10000000 10000000
Output
NO | instruction | 0 | 33,136 | 5 | 66,272 |
"Correct Solution:
```
n = int(input())
print("YES" if n == len(set(list(map(int, input().split())))) else "NO")
``` | output | 1 | 33,136 | 5 | 66,273 |
Provide a correct Python 3 solution for this coding contest problem.
Given is a sequence of integers A_1, A_2, ..., A_N. If its elements are pairwise distinct, print `YES`; otherwise, print `NO`.
Constraints
* 2 ≤ N ≤ 200000
* 1 ≤ A_i ≤ 10^9
* All values in input are integers.
Input
Input is given from Standard Input in the following format:
N
A_1 ... A_N
Output
If the elements of the sequence are pairwise distinct, print `YES`; otherwise, print `NO`.
Examples
Input
5
2 6 1 4 5
Output
YES
Input
6
4 1 3 1 6 2
Output
NO
Input
2
10000000 10000000
Output
NO | instruction | 0 | 33,137 | 5 | 66,274 |
"Correct Solution:
```
N = int(input())
A = input().split()
B = set(A)
print("YES" if len(A) == len(B) else "NO")
``` | output | 1 | 33,137 | 5 | 66,275 |
Provide a correct Python 3 solution for this coding contest problem.
Given is a sequence of integers A_1, A_2, ..., A_N. If its elements are pairwise distinct, print `YES`; otherwise, print `NO`.
Constraints
* 2 ≤ N ≤ 200000
* 1 ≤ A_i ≤ 10^9
* All values in input are integers.
Input
Input is given from Standard Input in the following format:
N
A_1 ... A_N
Output
If the elements of the sequence are pairwise distinct, print `YES`; otherwise, print `NO`.
Examples
Input
5
2 6 1 4 5
Output
YES
Input
6
4 1 3 1 6 2
Output
NO
Input
2
10000000 10000000
Output
NO | instruction | 0 | 33,138 | 5 | 66,276 |
"Correct Solution:
```
print("YES" if int(input())==len(set(input().split())) else "NO")
``` | output | 1 | 33,138 | 5 | 66,277 |
Provide a correct Python 3 solution for this coding contest problem.
Given is a sequence of integers A_1, A_2, ..., A_N. If its elements are pairwise distinct, print `YES`; otherwise, print `NO`.
Constraints
* 2 ≤ N ≤ 200000
* 1 ≤ A_i ≤ 10^9
* All values in input are integers.
Input
Input is given from Standard Input in the following format:
N
A_1 ... A_N
Output
If the elements of the sequence are pairwise distinct, print `YES`; otherwise, print `NO`.
Examples
Input
5
2 6 1 4 5
Output
YES
Input
6
4 1 3 1 6 2
Output
NO
Input
2
10000000 10000000
Output
NO | instruction | 0 | 33,139 | 5 | 66,278 |
"Correct Solution:
```
n = input()
a = input().split()
if len(a)== len(set(a)):
print("YES")
else:
print("NO")
``` | output | 1 | 33,139 | 5 | 66,279 |
Provide a correct Python 3 solution for this coding contest problem.
Given is a sequence of integers A_1, A_2, ..., A_N. If its elements are pairwise distinct, print `YES`; otherwise, print `NO`.
Constraints
* 2 ≤ N ≤ 200000
* 1 ≤ A_i ≤ 10^9
* All values in input are integers.
Input
Input is given from Standard Input in the following format:
N
A_1 ... A_N
Output
If the elements of the sequence are pairwise distinct, print `YES`; otherwise, print `NO`.
Examples
Input
5
2 6 1 4 5
Output
YES
Input
6
4 1 3 1 6 2
Output
NO
Input
2
10000000 10000000
Output
NO | instruction | 0 | 33,140 | 5 | 66,280 |
"Correct Solution:
```
input()
(*a,) = map(int, input().split())
print(["NO", "YES"][len(a) == len(set(a))])
``` | output | 1 | 33,140 | 5 | 66,281 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Given is a sequence of integers A_1, A_2, ..., A_N. If its elements are pairwise distinct, print `YES`; otherwise, print `NO`.
Constraints
* 2 ≤ N ≤ 200000
* 1 ≤ A_i ≤ 10^9
* All values in input are integers.
Input
Input is given from Standard Input in the following format:
N
A_1 ... A_N
Output
If the elements of the sequence are pairwise distinct, print `YES`; otherwise, print `NO`.
Examples
Input
5
2 6 1 4 5
Output
YES
Input
6
4 1 3 1 6 2
Output
NO
Input
2
10000000 10000000
Output
NO
Submitted Solution:
```
n = int(input())
print('YNEOS'[len(set(input().split()))!=n::2])
``` | instruction | 0 | 33,141 | 5 | 66,282 |
Yes | output | 1 | 33,141 | 5 | 66,283 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Given is a sequence of integers A_1, A_2, ..., A_N. If its elements are pairwise distinct, print `YES`; otherwise, print `NO`.
Constraints
* 2 ≤ N ≤ 200000
* 1 ≤ A_i ≤ 10^9
* All values in input are integers.
Input
Input is given from Standard Input in the following format:
N
A_1 ... A_N
Output
If the elements of the sequence are pairwise distinct, print `YES`; otherwise, print `NO`.
Examples
Input
5
2 6 1 4 5
Output
YES
Input
6
4 1 3 1 6 2
Output
NO
Input
2
10000000 10000000
Output
NO
Submitted Solution:
```
input()
A = list(map(int, input().split()))
print("YES" if len(A)==len(set(A)) else "NO")
``` | instruction | 0 | 33,142 | 5 | 66,284 |
Yes | output | 1 | 33,142 | 5 | 66,285 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Given is a sequence of integers A_1, A_2, ..., A_N. If its elements are pairwise distinct, print `YES`; otherwise, print `NO`.
Constraints
* 2 ≤ N ≤ 200000
* 1 ≤ A_i ≤ 10^9
* All values in input are integers.
Input
Input is given from Standard Input in the following format:
N
A_1 ... A_N
Output
If the elements of the sequence are pairwise distinct, print `YES`; otherwise, print `NO`.
Examples
Input
5
2 6 1 4 5
Output
YES
Input
6
4 1 3 1 6 2
Output
NO
Input
2
10000000 10000000
Output
NO
Submitted Solution:
```
N=int(input())
*A,=map(int,input().split())
print('YES'if N==len(set(A))else'NO')
``` | instruction | 0 | 33,143 | 5 | 66,286 |
Yes | output | 1 | 33,143 | 5 | 66,287 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Given is a sequence of integers A_1, A_2, ..., A_N. If its elements are pairwise distinct, print `YES`; otherwise, print `NO`.
Constraints
* 2 ≤ N ≤ 200000
* 1 ≤ A_i ≤ 10^9
* All values in input are integers.
Input
Input is given from Standard Input in the following format:
N
A_1 ... A_N
Output
If the elements of the sequence are pairwise distinct, print `YES`; otherwise, print `NO`.
Examples
Input
5
2 6 1 4 5
Output
YES
Input
6
4 1 3 1 6 2
Output
NO
Input
2
10000000 10000000
Output
NO
Submitted Solution:
```
input()
a = list(map(int, input().split()))
print('YNEOS'[len(a) > len(set(a))::2])
``` | instruction | 0 | 33,144 | 5 | 66,288 |
Yes | output | 1 | 33,144 | 5 | 66,289 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Given is a sequence of integers A_1, A_2, ..., A_N. If its elements are pairwise distinct, print `YES`; otherwise, print `NO`.
Constraints
* 2 ≤ N ≤ 200000
* 1 ≤ A_i ≤ 10^9
* All values in input are integers.
Input
Input is given from Standard Input in the following format:
N
A_1 ... A_N
Output
If the elements of the sequence are pairwise distinct, print `YES`; otherwise, print `NO`.
Examples
Input
5
2 6 1 4 5
Output
YES
Input
6
4 1 3 1 6 2
Output
NO
Input
2
10000000 10000000
Output
NO
Submitted Solution:
```
N = int(input())
l = []
for i in map(int, input().split()):
if i in l:
print("NO")
exit()
l.append(i)
print("YES")
``` | instruction | 0 | 33,145 | 5 | 66,290 |
No | output | 1 | 33,145 | 5 | 66,291 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Given is a sequence of integers A_1, A_2, ..., A_N. If its elements are pairwise distinct, print `YES`; otherwise, print `NO`.
Constraints
* 2 ≤ N ≤ 200000
* 1 ≤ A_i ≤ 10^9
* All values in input are integers.
Input
Input is given from Standard Input in the following format:
N
A_1 ... A_N
Output
If the elements of the sequence are pairwise distinct, print `YES`; otherwise, print `NO`.
Examples
Input
5
2 6 1 4 5
Output
YES
Input
6
4 1 3 1 6 2
Output
NO
Input
2
10000000 10000000
Output
NO
Submitted Solution:
```
from collections import Counter
# Initializing variables
n = int(input())
ai = list(map(int, input().split()))
c = max(Counter(ai).values())
# Calculating if the input is pairwise distinct or not
if c > 1:
print('No')
else:
print('Yes')
``` | instruction | 0 | 33,146 | 5 | 66,292 |
No | output | 1 | 33,146 | 5 | 66,293 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Given is a sequence of integers A_1, A_2, ..., A_N. If its elements are pairwise distinct, print `YES`; otherwise, print `NO`.
Constraints
* 2 ≤ N ≤ 200000
* 1 ≤ A_i ≤ 10^9
* All values in input are integers.
Input
Input is given from Standard Input in the following format:
N
A_1 ... A_N
Output
If the elements of the sequence are pairwise distinct, print `YES`; otherwise, print `NO`.
Examples
Input
5
2 6 1 4 5
Output
YES
Input
6
4 1 3 1 6 2
Output
NO
Input
2
10000000 10000000
Output
NO
Submitted Solution:
```
n = int(input())
a = list(map, int(input().split()))
yn = ["YES","NO"]
flag = 0
for i in range(n-1):
for j in range(i+1, n):
if i == j:
flag = 1
print(yn[flag])
``` | instruction | 0 | 33,147 | 5 | 66,294 |
No | output | 1 | 33,147 | 5 | 66,295 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Given is a sequence of integers A_1, A_2, ..., A_N. If its elements are pairwise distinct, print `YES`; otherwise, print `NO`.
Constraints
* 2 ≤ N ≤ 200000
* 1 ≤ A_i ≤ 10^9
* All values in input are integers.
Input
Input is given from Standard Input in the following format:
N
A_1 ... A_N
Output
If the elements of the sequence are pairwise distinct, print `YES`; otherwise, print `NO`.
Examples
Input
5
2 6 1 4 5
Output
YES
Input
6
4 1 3 1 6 2
Output
NO
Input
2
10000000 10000000
Output
NO
Submitted Solution:
```
N = int(input())
A = list(map(int,input().split()))
cnt = [0]* (max(A)+1)
for i in range(N):
if cnt[A[i]] == 0:
cnt[A[i]] = 1
else:
print("NO")
exit()
print("YES")
``` | instruction | 0 | 33,148 | 5 | 66,296 |
No | output | 1 | 33,148 | 5 | 66,297 |
Provide a correct Python 3 solution for this coding contest problem.
Write a program which reads a sequence of integers $A = \\{a_0, a_1, ..., a_{n-1}\\}$ and reverse specified elements by a list of the following operation:
* reverse($b, e$): reverse the order of $a_b, a_{b+1}, ..., a_{e-1}$
Constraints
* $1 \leq n \leq 1,000$
* $-1,000,000,000 \leq a_i \leq 1,000,000,000$
* $1 \leq q \leq 1,000$
* $0 \leq b < e \leq n$
Input
The input is given in the following format.
$n$
$a_0 \; a_1 \; ...,\; a_{n-1}$
$q$
$b_1 \; e_1$
$b_2 \; e_2$
:
$b_{q} \; b_{q}$
In the first line, $n$ (the number of elements in $A$) is given. In the second line, $a_i$ (each element in $A$) are given. In the third line, the number of queries $q$ is given and each query is given by two integers $b_i \; e_i$ in the following $q$ lines.
Output
Print all elements of $A$ in a line after performing the given operations. Put a single space character between adjacency elements and a newline at the end of the last element.
Example
Input
8
1 2 3 4 5 6 7 8
2
1 6
3 8
Output
1 6 5 8 7 2 3 4 | instruction | 0 | 33,305 | 5 | 66,610 |
"Correct Solution:
```
n = int(input())
A = list(map(int, input().split()))
q = int(input())
Q = []
for i in range(q):
tmp = list(map(int, input().split()))
Q.append(tmp)
for query in Q:
A[query[0]:query[1]] = reversed(A[query[0]:query[1]])
print(*A)
``` | output | 1 | 33,305 | 5 | 66,611 |
Provide a correct Python 3 solution for this coding contest problem.
Write a program which reads a sequence of integers $A = \\{a_0, a_1, ..., a_{n-1}\\}$ and reverse specified elements by a list of the following operation:
* reverse($b, e$): reverse the order of $a_b, a_{b+1}, ..., a_{e-1}$
Constraints
* $1 \leq n \leq 1,000$
* $-1,000,000,000 \leq a_i \leq 1,000,000,000$
* $1 \leq q \leq 1,000$
* $0 \leq b < e \leq n$
Input
The input is given in the following format.
$n$
$a_0 \; a_1 \; ...,\; a_{n-1}$
$q$
$b_1 \; e_1$
$b_2 \; e_2$
:
$b_{q} \; b_{q}$
In the first line, $n$ (the number of elements in $A$) is given. In the second line, $a_i$ (each element in $A$) are given. In the third line, the number of queries $q$ is given and each query is given by two integers $b_i \; e_i$ in the following $q$ lines.
Output
Print all elements of $A$ in a line after performing the given operations. Put a single space character between adjacency elements and a newline at the end of the last element.
Example
Input
8
1 2 3 4 5 6 7 8
2
1 6
3 8
Output
1 6 5 8 7 2 3 4 | instruction | 0 | 33,306 | 5 | 66,612 |
"Correct Solution:
```
n = int(input())
A = list(input().split())
q = int(input())
for i in range(q):
queryi = list(map(int, input().split()))
B = A[:queryi[0]]
C = A[queryi[0] : queryi[1]]
C.reverse()
D = A[queryi[1]:]
C.extend(D)
B.extend(C)
A = B
print(" ".join(A))
``` | output | 1 | 33,306 | 5 | 66,613 |
Provide a correct Python 3 solution for this coding contest problem.
Write a program which reads a sequence of integers $A = \\{a_0, a_1, ..., a_{n-1}\\}$ and reverse specified elements by a list of the following operation:
* reverse($b, e$): reverse the order of $a_b, a_{b+1}, ..., a_{e-1}$
Constraints
* $1 \leq n \leq 1,000$
* $-1,000,000,000 \leq a_i \leq 1,000,000,000$
* $1 \leq q \leq 1,000$
* $0 \leq b < e \leq n$
Input
The input is given in the following format.
$n$
$a_0 \; a_1 \; ...,\; a_{n-1}$
$q$
$b_1 \; e_1$
$b_2 \; e_2$
:
$b_{q} \; b_{q}$
In the first line, $n$ (the number of elements in $A$) is given. In the second line, $a_i$ (each element in $A$) are given. In the third line, the number of queries $q$ is given and each query is given by two integers $b_i \; e_i$ in the following $q$ lines.
Output
Print all elements of $A$ in a line after performing the given operations. Put a single space character between adjacency elements and a newline at the end of the last element.
Example
Input
8
1 2 3 4 5 6 7 8
2
1 6
3 8
Output
1 6 5 8 7 2 3 4 | instruction | 0 | 33,307 | 5 | 66,614 |
"Correct Solution:
```
input()
nums = list(map(int, input().split(' ')))
r = int(input())
for _ in range(r):
f, l = list(map(int, input().split(' ')))
nums = nums[:f] + list(reversed(nums[f:l])) + nums[l:]
print(' '.join(map(str, nums)))
``` | output | 1 | 33,307 | 5 | 66,615 |
Provide a correct Python 3 solution for this coding contest problem.
Write a program which reads a sequence of integers $A = \\{a_0, a_1, ..., a_{n-1}\\}$ and reverse specified elements by a list of the following operation:
* reverse($b, e$): reverse the order of $a_b, a_{b+1}, ..., a_{e-1}$
Constraints
* $1 \leq n \leq 1,000$
* $-1,000,000,000 \leq a_i \leq 1,000,000,000$
* $1 \leq q \leq 1,000$
* $0 \leq b < e \leq n$
Input
The input is given in the following format.
$n$
$a_0 \; a_1 \; ...,\; a_{n-1}$
$q$
$b_1 \; e_1$
$b_2 \; e_2$
:
$b_{q} \; b_{q}$
In the first line, $n$ (the number of elements in $A$) is given. In the second line, $a_i$ (each element in $A$) are given. In the third line, the number of queries $q$ is given and each query is given by two integers $b_i \; e_i$ in the following $q$ lines.
Output
Print all elements of $A$ in a line after performing the given operations. Put a single space character between adjacency elements and a newline at the end of the last element.
Example
Input
8
1 2 3 4 5 6 7 8
2
1 6
3 8
Output
1 6 5 8 7 2 3 4 | instruction | 0 | 33,308 | 5 | 66,616 |
"Correct Solution:
```
n = int(input())
a = list(map(int, input().split()))
q = int(input())
for _ in range(q):
b, e = list(map(int, input().split()))
a0 = a[:b]
a1 = a[b:e]
a3 = a[e:]
a1r = a1[::-1]
a = a0 + a1r + a3
print(*a, sep=' ')
``` | output | 1 | 33,308 | 5 | 66,617 |
Provide a correct Python 3 solution for this coding contest problem.
Write a program which reads a sequence of integers $A = \\{a_0, a_1, ..., a_{n-1}\\}$ and reverse specified elements by a list of the following operation:
* reverse($b, e$): reverse the order of $a_b, a_{b+1}, ..., a_{e-1}$
Constraints
* $1 \leq n \leq 1,000$
* $-1,000,000,000 \leq a_i \leq 1,000,000,000$
* $1 \leq q \leq 1,000$
* $0 \leq b < e \leq n$
Input
The input is given in the following format.
$n$
$a_0 \; a_1 \; ...,\; a_{n-1}$
$q$
$b_1 \; e_1$
$b_2 \; e_2$
:
$b_{q} \; b_{q}$
In the first line, $n$ (the number of elements in $A$) is given. In the second line, $a_i$ (each element in $A$) are given. In the third line, the number of queries $q$ is given and each query is given by two integers $b_i \; e_i$ in the following $q$ lines.
Output
Print all elements of $A$ in a line after performing the given operations. Put a single space character between adjacency elements and a newline at the end of the last element.
Example
Input
8
1 2 3 4 5 6 7 8
2
1 6
3 8
Output
1 6 5 8 7 2 3 4 | instruction | 0 | 33,309 | 5 | 66,618 |
"Correct Solution:
```
# -*- coding: utf-8 -*-
"""
Basic Modifications - Reverse
http://judge.u-aizu.ac.jp/onlinejudge/description.jsp?id=ITP2_4_A&lang=jp
"""
_ = input()
A = [int(a) for a in input().split()]
for _ in range(int(input())):
b, e = map(int, input().split())
A = A[0:b] + A[b:e][::-1] + A[e:]
print(*A)
``` | output | 1 | 33,309 | 5 | 66,619 |
Provide a correct Python 3 solution for this coding contest problem.
Write a program which reads a sequence of integers $A = \\{a_0, a_1, ..., a_{n-1}\\}$ and reverse specified elements by a list of the following operation:
* reverse($b, e$): reverse the order of $a_b, a_{b+1}, ..., a_{e-1}$
Constraints
* $1 \leq n \leq 1,000$
* $-1,000,000,000 \leq a_i \leq 1,000,000,000$
* $1 \leq q \leq 1,000$
* $0 \leq b < e \leq n$
Input
The input is given in the following format.
$n$
$a_0 \; a_1 \; ...,\; a_{n-1}$
$q$
$b_1 \; e_1$
$b_2 \; e_2$
:
$b_{q} \; b_{q}$
In the first line, $n$ (the number of elements in $A$) is given. In the second line, $a_i$ (each element in $A$) are given. In the third line, the number of queries $q$ is given and each query is given by two integers $b_i \; e_i$ in the following $q$ lines.
Output
Print all elements of $A$ in a line after performing the given operations. Put a single space character between adjacency elements and a newline at the end of the last element.
Example
Input
8
1 2 3 4 5 6 7 8
2
1 6
3 8
Output
1 6 5 8 7 2 3 4 | instruction | 0 | 33,310 | 5 | 66,620 |
"Correct Solution:
```
n = int(input())
A = list(map(int, input().split()))
q = int(input())
for _ in range(q):
b, e = map(int, input().split())
B = A[b:e]
B.reverse()
A = A[:b] + B + A[e:]
# OUTPUT
print(*A)
``` | output | 1 | 33,310 | 5 | 66,621 |
Provide a correct Python 3 solution for this coding contest problem.
Write a program which reads a sequence of integers $A = \\{a_0, a_1, ..., a_{n-1}\\}$ and reverse specified elements by a list of the following operation:
* reverse($b, e$): reverse the order of $a_b, a_{b+1}, ..., a_{e-1}$
Constraints
* $1 \leq n \leq 1,000$
* $-1,000,000,000 \leq a_i \leq 1,000,000,000$
* $1 \leq q \leq 1,000$
* $0 \leq b < e \leq n$
Input
The input is given in the following format.
$n$
$a_0 \; a_1 \; ...,\; a_{n-1}$
$q$
$b_1 \; e_1$
$b_2 \; e_2$
:
$b_{q} \; b_{q}$
In the first line, $n$ (the number of elements in $A$) is given. In the second line, $a_i$ (each element in $A$) are given. In the third line, the number of queries $q$ is given and each query is given by two integers $b_i \; e_i$ in the following $q$ lines.
Output
Print all elements of $A$ in a line after performing the given operations. Put a single space character between adjacency elements and a newline at the end of the last element.
Example
Input
8
1 2 3 4 5 6 7 8
2
1 6
3 8
Output
1 6 5 8 7 2 3 4 | instruction | 0 | 33,311 | 5 | 66,622 |
"Correct Solution:
```
def solve():
from sys import stdin
f_i = stdin
n = f_i.readline()
A = f_i.readline().split()
q = int(f_i.readline())
for i in range(q):
b, e = map(int, f_i.readline().split())
r = A[b:e]
r.reverse()
A = A[:b] + r + A[e:]
print(' '.join(A))
solve()
``` | output | 1 | 33,311 | 5 | 66,623 |
Provide a correct Python 3 solution for this coding contest problem.
Write a program which reads a sequence of integers $A = \\{a_0, a_1, ..., a_{n-1}\\}$ and reverse specified elements by a list of the following operation:
* reverse($b, e$): reverse the order of $a_b, a_{b+1}, ..., a_{e-1}$
Constraints
* $1 \leq n \leq 1,000$
* $-1,000,000,000 \leq a_i \leq 1,000,000,000$
* $1 \leq q \leq 1,000$
* $0 \leq b < e \leq n$
Input
The input is given in the following format.
$n$
$a_0 \; a_1 \; ...,\; a_{n-1}$
$q$
$b_1 \; e_1$
$b_2 \; e_2$
:
$b_{q} \; b_{q}$
In the first line, $n$ (the number of elements in $A$) is given. In the second line, $a_i$ (each element in $A$) are given. In the third line, the number of queries $q$ is given and each query is given by two integers $b_i \; e_i$ in the following $q$ lines.
Output
Print all elements of $A$ in a line after performing the given operations. Put a single space character between adjacency elements and a newline at the end of the last element.
Example
Input
8
1 2 3 4 5 6 7 8
2
1 6
3 8
Output
1 6 5 8 7 2 3 4 | instruction | 0 | 33,312 | 5 | 66,624 |
"Correct Solution:
```
n=input()
l=list(map(int,input().split()))
n=int(input())
for i in range(n):
b,e=map(int,input().split())
l1=l[b:e]
l1.reverse()
l[b:e]=l1
l=map(str,l)
print(' '.join(map(str,l)))
``` | output | 1 | 33,312 | 5 | 66,625 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Write a program which reads a sequence of integers $A = \\{a_0, a_1, ..., a_{n-1}\\}$ and reverse specified elements by a list of the following operation:
* reverse($b, e$): reverse the order of $a_b, a_{b+1}, ..., a_{e-1}$
Constraints
* $1 \leq n \leq 1,000$
* $-1,000,000,000 \leq a_i \leq 1,000,000,000$
* $1 \leq q \leq 1,000$
* $0 \leq b < e \leq n$
Input
The input is given in the following format.
$n$
$a_0 \; a_1 \; ...,\; a_{n-1}$
$q$
$b_1 \; e_1$
$b_2 \; e_2$
:
$b_{q} \; b_{q}$
In the first line, $n$ (the number of elements in $A$) is given. In the second line, $a_i$ (each element in $A$) are given. In the third line, the number of queries $q$ is given and each query is given by two integers $b_i \; e_i$ in the following $q$ lines.
Output
Print all elements of $A$ in a line after performing the given operations. Put a single space character between adjacency elements and a newline at the end of the last element.
Example
Input
8
1 2 3 4 5 6 7 8
2
1 6
3 8
Output
1 6 5 8 7 2 3 4
Submitted Solution:
```
n=int(input())
a=list(map(int,input().split( )))
q=int(input())
for i in range(q):
b,e=map(int,input().split( ))
tmp=[]
for j in range((e-b)//2):
a[b+j],a[e-j-1]=a[e-j-1],a[b+j]
print(*a)
``` | instruction | 0 | 33,313 | 5 | 66,626 |
Yes | output | 1 | 33,313 | 5 | 66,627 |
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