message stringlengths 2 23.8k | message_type stringclasses 2
values | message_id int64 0 1 | conversation_id int64 97 109k | cluster float64 0 0 | __index_level_0__ int64 194 217k |
|---|---|---|---|---|---|
Provide tags and a correct Python 3 solution for this coding contest problem.
For the given integer n (n > 2) let's write down all the strings of length n which contain n-2 letters 'a' and two letters 'b' in lexicographical (alphabetical) order.
Recall that the string s of length n is lexicographically less than stri... | instruction | 0 | 71,808 | 0 | 143,616 |
Tags: binary search, brute force, combinatorics, implementation, math
Correct Solution:
```
arr=[1]
zz=10**5+100
for i in range(1,zz):
arr.append(arr[-1]+i)
from bisect import bisect_left as bl, bisect_right as br
for _ in range(int(input())):
n,k=map(int,input().split())
ind=bl(arr,k)
if arr[ind]!=k:
... | output | 1 | 71,808 | 0 | 143,617 |
Provide tags and a correct Python 3 solution for this coding contest problem.
For the given integer n (n > 2) let's write down all the strings of length n which contain n-2 letters 'a' and two letters 'b' in lexicographical (alphabetical) order.
Recall that the string s of length n is lexicographically less than stri... | instruction | 0 | 71,809 | 0 | 143,618 |
Tags: binary search, brute force, combinatorics, implementation, math
Correct Solution:
```
t = int(input())
for i in range(t):
N,K=[int(i) for i in input().split(" ")]
a=int(((1+8*K)**(0.5))/2 - 0.5)
b=K-a*(a+1)//2
if b==0:
print("a"*(N-a-1)+"bb"+"a"*(a+1-2))
else:
print("a"*(N-a-2)... | output | 1 | 71,809 | 0 | 143,619 |
Provide tags and a correct Python 3 solution for this coding contest problem.
For the given integer n (n > 2) let's write down all the strings of length n which contain n-2 letters 'a' and two letters 'b' in lexicographical (alphabetical) order.
Recall that the string s of length n is lexicographically less than stri... | instruction | 0 | 71,810 | 0 | 143,620 |
Tags: binary search, brute force, combinatorics, implementation, math
Correct Solution:
```
from math import floor, sqrt
def sigma(n):
return n * (n - 1) // 2
def sigma_inv(n):
f = 1 / 2 + sqrt(2 * n - 2 + 1 / 4)
return floor(f)
n = int(input())
for _ in range(n):
s, k = map(int, input().split())
ans = ["a"]... | output | 1 | 71,810 | 0 | 143,621 |
Provide tags and a correct Python 3 solution for this coding contest problem.
For the given integer n (n > 2) let's write down all the strings of length n which contain n-2 letters 'a' and two letters 'b' in lexicographical (alphabetical) order.
Recall that the string s of length n is lexicographically less than stri... | instruction | 0 | 71,811 | 0 | 143,622 |
Tags: binary search, brute force, combinatorics, implementation, math
Correct Solution:
```
for _ in range(int(input())):
n, k = map(int, input().split())
x = n * (n - 1) // 2
c = n-1
while x - c >= k:
x -= c
c -= 1
l = ['a'] * n
l[c] = 'b'
l[c+(k-x-1)] = 'b'
print(*l... | output | 1 | 71,811 | 0 | 143,623 |
Provide tags and a correct Python 3 solution for this coding contest problem.
For the given integer n (n > 2) let's write down all the strings of length n which contain n-2 letters 'a' and two letters 'b' in lexicographical (alphabetical) order.
Recall that the string s of length n is lexicographically less than stri... | instruction | 0 | 71,812 | 0 | 143,624 |
Tags: binary search, brute force, combinatorics, implementation, math
Correct Solution:
```
from math import floor, sqrt
t = int(input())
ans = []
def find_first(k):
for i in range(k+2):
if i*(i-1)/2>=k:
return i
def find_second(k, first):
return int(k-(first-1)*(first-2)/2)
for _ in ra... | output | 1 | 71,812 | 0 | 143,625 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
For the given integer n (n > 2) let's write down all the strings of length n which contain n-2 letters 'a' and two letters 'b' in lexicographical (alphabetical) order.
Recall that the string s ... | instruction | 0 | 71,813 | 0 | 143,626 |
Yes | output | 1 | 71,813 | 0 | 143,627 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
For the given integer n (n > 2) let's write down all the strings of length n which contain n-2 letters 'a' and two letters 'b' in lexicographical (alphabetical) order.
Recall that the string s ... | instruction | 0 | 71,814 | 0 | 143,628 |
Yes | output | 1 | 71,814 | 0 | 143,629 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
For the given integer n (n > 2) let's write down all the strings of length n which contain n-2 letters 'a' and two letters 'b' in lexicographical (alphabetical) order.
Recall that the string s ... | instruction | 0 | 71,815 | 0 | 143,630 |
Yes | output | 1 | 71,815 | 0 | 143,631 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
For the given integer n (n > 2) let's write down all the strings of length n which contain n-2 letters 'a' and two letters 'b' in lexicographical (alphabetical) order.
Recall that the string s ... | instruction | 0 | 71,816 | 0 | 143,632 |
Yes | output | 1 | 71,816 | 0 | 143,633 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
For the given integer n (n > 2) let's write down all the strings of length n which contain n-2 letters 'a' and two letters 'b' in lexicographical (alphabetical) order.
Recall that the string s ... | instruction | 0 | 71,817 | 0 | 143,634 |
No | output | 1 | 71,817 | 0 | 143,635 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
For the given integer n (n > 2) let's write down all the strings of length n which contain n-2 letters 'a' and two letters 'b' in lexicographical (alphabetical) order.
Recall that the string s ... | instruction | 0 | 71,818 | 0 | 143,636 |
No | output | 1 | 71,818 | 0 | 143,637 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
For the given integer n (n > 2) let's write down all the strings of length n which contain n-2 letters 'a' and two letters 'b' in lexicographical (alphabetical) order.
Recall that the string s ... | instruction | 0 | 71,819 | 0 | 143,638 |
No | output | 1 | 71,819 | 0 | 143,639 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
For the given integer n (n > 2) let's write down all the strings of length n which contain n-2 letters 'a' and two letters 'b' in lexicographical (alphabetical) order.
Recall that the string s ... | instruction | 0 | 71,820 | 0 | 143,640 |
No | output | 1 | 71,820 | 0 | 143,641 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a number k and a string s of length n, consisting of the characters '.' and '*'. You want to replace some of the '*' characters with 'x' characters so that the following conditions are met:
* The first character '*' in the ... | instruction | 0 | 71,883 | 0 | 143,766 |
Tags: greedy, implementation
Correct Solution:
```
from sys import stdin ,stdout
from os import path
rd = lambda:stdin.readline().strip()
wr = stdout.write
if(path.exists('input.txt')):
stdin = open("input.txt","r")
import time ,math
#------------------------------------=
from collections import defaultdict
for _ i... | output | 1 | 71,883 | 0 | 143,767 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a number k and a string s of length n, consisting of the characters '.' and '*'. You want to replace some of the '*' characters with 'x' characters so that the following conditions are met:
* The first character '*' in the ... | instruction | 0 | 71,884 | 0 | 143,768 |
Tags: greedy, implementation
Correct Solution:
```
In=input
lin=lambda : map(int,In().split())
for _ in range(int(In())):
_,k=lin()
m=In()
j=1
i=m.index('*')
while i<m.rfind('*'):
i=m.rfind('*',i,i+k+1)
j+=1
print(j)
``` | output | 1 | 71,884 | 0 | 143,769 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a number k and a string s of length n, consisting of the characters '.' and '*'. You want to replace some of the '*' characters with 'x' characters so that the following conditions are met:
* The first character '*' in the ... | instruction | 0 | 71,885 | 0 | 143,770 |
Tags: greedy, implementation
Correct Solution:
```
from collections import deque
for _ in range(int(input())):
n,k=map(int,input().split())
s=input()
queue=deque()
front=-1
back=-1
for i in range(n-1,-1,-1):
if s[i]=="*":
back=i
break
for i in range(n):
... | output | 1 | 71,885 | 0 | 143,771 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a number k and a string s of length n, consisting of the characters '.' and '*'. You want to replace some of the '*' characters with 'x' characters so that the following conditions are met:
* The first character '*' in the ... | instruction | 0 | 71,886 | 0 | 143,772 |
Tags: greedy, implementation
Correct Solution:
```
for _ in range(int(input())):
n,k=map(int,input().split())
s=str(input())
p=s.find("*")
q=s.rfind("*")
if p==q:
print(1)
else:
ans=2
while q-p>k:
p=s.rfind("*",0,p+k+1)
ans+=1
print(ans)
... | output | 1 | 71,886 | 0 | 143,773 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a number k and a string s of length n, consisting of the characters '.' and '*'. You want to replace some of the '*' characters with 'x' characters so that the following conditions are met:
* The first character '*' in the ... | instruction | 0 | 71,887 | 0 | 143,774 |
Tags: greedy, implementation
Correct Solution:
```
Tt=int(input())
for ii in range(Tt):
n,k=map(int,input().split())
s=input()
c=s.count('*')
if c==1:
print(1)
elif c==2:
print(2)
else:
x=s.find('*')
l=s[::-1]
y=l.find('*')
cnt=2
n=n-y
... | output | 1 | 71,887 | 0 | 143,775 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a number k and a string s of length n, consisting of the characters '.' and '*'. You want to replace some of the '*' characters with 'x' characters so that the following conditions are met:
* The first character '*' in the ... | instruction | 0 | 71,888 | 0 | 143,776 |
Tags: greedy, implementation
Correct Solution:
```
for _ in range(int(input())):
n, k = map(int, input().split())
s = input()
a = []
for i in range(n):
if s[i] == '*':a.append(i)
fi = a[0]
ans=1
a = a[1:]
prev=fi
for i in range(len(a)):
el = a[i]
if el-prev>k:... | output | 1 | 71,888 | 0 | 143,777 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a number k and a string s of length n, consisting of the characters '.' and '*'. You want to replace some of the '*' characters with 'x' characters so that the following conditions are met:
* The first character '*' in the ... | instruction | 0 | 71,889 | 0 | 143,778 |
Tags: greedy, implementation
Correct Solution:
```
t=int(input())
for i in range(t):
n,k=[int(x) for x in input().split()]
retazec=input()
for i in range(n):
if retazec[i]=='*':
prva=i
break
for i in range(n):
if retazec[n-1-i]=='*':
posledna=n-1-i
... | output | 1 | 71,889 | 0 | 143,779 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a number k and a string s of length n, consisting of the characters '.' and '*'. You want to replace some of the '*' characters with 'x' characters so that the following conditions are met:
* The first character '*' in the ... | instruction | 0 | 71,890 | 0 | 143,780 |
Tags: greedy, implementation
Correct Solution:
```
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Created on Sun Apr 4 18:13:28 2021
@author: suneelvarma
"""
def answer(st,k):
ss,es = st.find('*'),st.rfind('*')
count = 1
i = ss
while i < es:
if st[i] == '*': count += 1
n... | output | 1 | 71,890 | 0 | 143,781 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a number k and a string s of length n, consisting of the characters '.' and '*'. You want to replace some of the '*' characters with 'x' characters so that the following conditions... | instruction | 0 | 71,891 | 0 | 143,782 |
Yes | output | 1 | 71,891 | 0 | 143,783 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a number k and a string s of length n, consisting of the characters '.' and '*'. You want to replace some of the '*' characters with 'x' characters so that the following conditions... | instruction | 0 | 71,892 | 0 | 143,784 |
Yes | output | 1 | 71,892 | 0 | 143,785 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a number k and a string s of length n, consisting of the characters '.' and '*'. You want to replace some of the '*' characters with 'x' characters so that the following conditions... | instruction | 0 | 71,893 | 0 | 143,786 |
Yes | output | 1 | 71,893 | 0 | 143,787 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a number k and a string s of length n, consisting of the characters '.' and '*'. You want to replace some of the '*' characters with 'x' characters so that the following conditions... | instruction | 0 | 71,894 | 0 | 143,788 |
Yes | output | 1 | 71,894 | 0 | 143,789 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a number k and a string s of length n, consisting of the characters '.' and '*'. You want to replace some of the '*' characters with 'x' characters so that the following conditions... | instruction | 0 | 71,895 | 0 | 143,790 |
No | output | 1 | 71,895 | 0 | 143,791 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a number k and a string s of length n, consisting of the characters '.' and '*'. You want to replace some of the '*' characters with 'x' characters so that the following conditions... | instruction | 0 | 71,896 | 0 | 143,792 |
No | output | 1 | 71,896 | 0 | 143,793 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a number k and a string s of length n, consisting of the characters '.' and '*'. You want to replace some of the '*' characters with 'x' characters so that the following conditions... | instruction | 0 | 71,897 | 0 | 143,794 |
No | output | 1 | 71,897 | 0 | 143,795 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a number k and a string s of length n, consisting of the characters '.' and '*'. You want to replace some of the '*' characters with 'x' characters so that the following conditions... | instruction | 0 | 71,898 | 0 | 143,796 |
No | output | 1 | 71,898 | 0 | 143,797 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
In an English class Nick had nothing to do at all, and remembered about wonderful strings called palindromes. We should remind you that a string is called a palindrome if it can be read the same... | instruction | 0 | 71,931 | 0 | 143,862 |
No | output | 1 | 71,931 | 0 | 143,863 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
In an English class Nick had nothing to do at all, and remembered about wonderful strings called palindromes. We should remind you that a string is called a palindrome if it can be read the same... | instruction | 0 | 71,932 | 0 | 143,864 |
No | output | 1 | 71,932 | 0 | 143,865 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
In an English class Nick had nothing to do at all, and remembered about wonderful strings called palindromes. We should remind you that a string is called a palindrome if it can be read the same... | instruction | 0 | 71,933 | 0 | 143,866 |
No | output | 1 | 71,933 | 0 | 143,867 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
In an English class Nick had nothing to do at all, and remembered about wonderful strings called palindromes. We should remind you that a string is called a palindrome if it can be read the same... | instruction | 0 | 71,934 | 0 | 143,868 |
No | output | 1 | 71,934 | 0 | 143,869 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Tavas is a strange creature. Usually "zzz" comes out of people's mouth while sleeping, but string s of length n comes out from Tavas' mouth instead.
<image>
Today Tavas fell asleep in Malekas' place. While he was sleeping, Malekas did a li... | instruction | 0 | 72,056 | 0 | 144,112 |
Tags: greedy, hashing, string suffix structures, strings
Correct Solution:
```
from sys import stdin, stdout, setrecursionlimit
input = stdin.readline
import string
characters = string.ascii_uppercase
from random import choice
# digits = string.digits
# setrecursionlimit(int(1e6))
# dir = [-1,0,1,0,-1]
# moves = 'NESW'... | output | 1 | 72,056 | 0 | 144,113 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Tavas is a strange creature. Usually "zzz" comes out of people's mouth while sleeping, but string s of length n comes out from Tavas' mouth instead.
<image>
Today Tavas fell asleep in Malekas' place. While he was sleeping, Malekas did a li... | instruction | 0 | 72,057 | 0 | 144,114 |
Tags: greedy, hashing, string suffix structures, strings
Correct Solution:
```
import os
import sys
from io import BytesIO, IOBase
BUFSIZE = 8192
class FastIO(IOBase):
newlines = 0
def __init__(self, file):
self._fd = file.fileno()
self.buffer = BytesIO()
self.writable = "x" in file.mode... | output | 1 | 72,057 | 0 | 144,115 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Tavas is a strange creature. Usually "zzz" comes out of people's mouth while sleeping, but string s of length n comes out from Tavas' mouth instead.
<image>
Today Tavas fell asleep in Malekas' place. While he was sleeping, Malekas did a li... | instruction | 0 | 72,058 | 0 | 144,116 |
Tags: greedy, hashing, string suffix structures, strings
Correct Solution:
```
# -*- coding: utf-8 -*-
def solve():
n, m = map(int, input().split())
p = input()
if m == 0:
return powmod(n)
delta = len(p) - 1
ys = map(int, input().split())
tail = 0
free_chars = 0
for y in ys:
... | output | 1 | 72,058 | 0 | 144,117 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Tavas is a strange creature. Usually "zzz" comes out of people's mouth while sleeping, but string s of length n comes out from Tavas' mouth instead.
<image>
Today Tavas fell asleep in Malekas' place. While he was sleeping, Malekas did a li... | instruction | 0 | 72,059 | 0 | 144,118 |
Tags: greedy, hashing, string suffix structures, strings
Correct Solution:
```
import sys
def prefix(s):
m = len(s)
v = [0]*len(s)
for i in range(1,len(s)):
k = v[i-1]
while k > 0 and s[k] != s[i]:
k = v[k-1]
if s[k] == s[i]:
k = k + 1
v[i] = k
w ... | output | 1 | 72,059 | 0 | 144,119 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Tavas is a strange creature. Usually "zzz" comes out of people's mouth while sleeping, but string s of length n comes out from Tavas' mouth instead.
<image>
Today Tavas fell asleep in Malekas' place. While he was sleeping, Malekas did a li... | instruction | 0 | 72,060 | 0 | 144,120 |
Tags: greedy, hashing, string suffix structures, strings
Correct Solution:
```
def preZ(s): #preprocessing by Z algo
n = len(s)
z = [0]*n
z[0] = n
r = 0
if n==1: return z
while r+1<n and s[r]==s[r+1]: r+=1
z[1] = r #note z=length! not 0-indexed
l = 1 if r>0 else 0
for... | output | 1 | 72,060 | 0 | 144,121 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Tavas is a strange creature. Usually "zzz" comes out of people's mouth while sleeping, but string s of length n comes out from Tavas' mouth instead.
<image>
Today Tavas fell asleep in Malekas' place. While he was sleeping, Malekas did a li... | instruction | 0 | 72,061 | 0 | 144,122 |
Tags: greedy, hashing, string suffix structures, strings
Correct Solution:
```
from sys import stdin, stdout, setrecursionlimit
input = stdin.readline
# digits = string.digits
# setrecursionlimit(int(1e6))
# dir = [-1,0,1,0,-1]
# moves = 'NESW'
inf = float('inf')
from functools import cmp_to_key
from collections impor... | output | 1 | 72,061 | 0 | 144,123 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Tavas is a strange creature. Usually "zzz" comes out of people's mouth while sleeping, but string s of length n comes out from Tavas' mouth instead.
<image>
Today Tavas fell asleep in Malekas'... | instruction | 0 | 72,062 | 0 | 144,124 |
No | output | 1 | 72,062 | 0 | 144,125 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Tavas is a strange creature. Usually "zzz" comes out of people's mouth while sleeping, but string s of length n comes out from Tavas' mouth instead.
<image>
Today Tavas fell asleep in Malekas'... | instruction | 0 | 72,063 | 0 | 144,126 |
No | output | 1 | 72,063 | 0 | 144,127 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Tavas is a strange creature. Usually "zzz" comes out of people's mouth while sleeping, but string s of length n comes out from Tavas' mouth instead.
<image>
Today Tavas fell asleep in Malekas'... | instruction | 0 | 72,064 | 0 | 144,128 |
No | output | 1 | 72,064 | 0 | 144,129 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Tavas is a strange creature. Usually "zzz" comes out of people's mouth while sleeping, but string s of length n comes out from Tavas' mouth instead.
<image>
Today Tavas fell asleep in Malekas'... | instruction | 0 | 72,065 | 0 | 144,130 |
No | output | 1 | 72,065 | 0 | 144,131 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A string a of length m is called antipalindromic iff m is even, and for each i (1 ≤ i ≤ m) ai ≠ am - i + 1.
Ivan has a string s consisting of n lowercase Latin letters; n is even. He wants to form some string t that will be an antipalindrom... | instruction | 0 | 72,230 | 0 | 144,460 |
Tags: flows, graphs, greedy
Correct Solution:
```
#https://pymotw.com/2/collections/counter.html
#same code as mmaxio
from collections import Counter
r = lambda: map(int, input().split())
def main():
n, = r()
s = input()
cost = list(r())
ans = 0
cnt = Counter()
for i in range(n // 2):
if s[i] == s[n - 1 - ... | output | 1 | 72,230 | 0 | 144,461 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A string a of length m is called antipalindromic iff m is even, and for each i (1 ≤ i ≤ m) ai ≠ am - i + 1.
Ivan has a string s consisting of n lowercase Latin letters; n is even. He wants to f... | instruction | 0 | 72,233 | 0 | 144,466 |
No | output | 1 | 72,233 | 0 | 144,467 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A string a of length m is called antipalindromic iff m is even, and for each i (1 ≤ i ≤ m) ai ≠ am - i + 1.
Ivan has a string s consisting of n lowercase Latin letters; n is even. He wants to f... | instruction | 0 | 72,234 | 0 | 144,468 |
No | output | 1 | 72,234 | 0 | 144,469 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A string a of length m is called antipalindromic iff m is even, and for each i (1 ≤ i ≤ m) ai ≠ am - i + 1.
Ivan has a string s consisting of n lowercase Latin letters; n is even. He wants to f... | instruction | 0 | 72,235 | 0 | 144,470 |
No | output | 1 | 72,235 | 0 | 144,471 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A string a of length m is called antipalindromic iff m is even, and for each i (1 ≤ i ≤ m) ai ≠ am - i + 1.
Ivan has a string s consisting of n lowercase Latin letters; n is even. He wants to f... | instruction | 0 | 72,236 | 0 | 144,472 |
No | output | 1 | 72,236 | 0 | 144,473 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Given is a string S consisting of `A`,`B`, and `C`.
Consider the (not necessarily contiguous) subsequences x of S that satisfy all of the following conditions:
* `A`, `B`, and `C` all occur th... | instruction | 0 | 72,316 | 0 | 144,632 |
No | output | 1 | 72,316 | 0 | 144,633 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Given is a string S consisting of `A`,`B`, and `C`.
Consider the (not necessarily contiguous) subsequences x of S that satisfy all of the following conditions:
* `A`, `B`, and `C` all occur th... | instruction | 0 | 72,317 | 0 | 144,634 |
No | output | 1 | 72,317 | 0 | 144,635 |
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