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 |
|---|---|---|---|---|---|
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Paul hates palindromes. He assumes that string s is tolerable if each its character is one of the first p letters of the English alphabet and s doesn't contain any palindrome contiguous substrin... | instruction | 0 | 58,399 | 0 | 116,798 |
No | output | 1 | 58,399 | 0 | 116,799 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Paul hates palindromes. He assumes that string s is tolerable if each its character is one of the first p letters of the English alphabet and s doesn't contain any palindrome contiguous substrin... | instruction | 0 | 58,400 | 0 | 116,800 |
No | output | 1 | 58,400 | 0 | 116,801 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Paul hates palindromes. He assumes that string s is tolerable if each its character is one of the first p letters of the English alphabet and s doesn't contain any palindrome contiguous substrin... | instruction | 0 | 58,401 | 0 | 116,802 |
No | output | 1 | 58,401 | 0 | 116,803 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There is a string s consisting of `a` and `b`. Snuke can perform the following two kinds of operation any number of times in any order:
* Choose an occurrence of `aa` as a substring, and replac... | instruction | 0 | 58,730 | 0 | 117,460 |
No | output | 1 | 58,730 | 0 | 117,461 |
Provide a correct Python 3 solution for this coding contest problem.
problem
Given two strings, find the longest of the strings contained in both strings and write a program that answers that length.
Here, the string s included in the string t means that s appears consecutively in t. An empty string, that is, a stri... | instruction | 0 | 58,790 | 0 | 117,580 |
"Correct Solution:
```
def rolling_hash(S, base, MOD):
l = len(S)
h = [0]*(l + 1)
for i in range(l):
h[i+1] = (h[i] * base + ord(S[i])) % MOD
return h
C = open(0).read().split()
MOD = 358976445361682909
base = 31
for t in range(len(C)//2):
S = C[2*t]; T = C[2*t+1]
rhs = rolling_hash(S,... | output | 1 | 58,790 | 0 | 117,581 |
Provide a correct Python 3 solution for this coding contest problem.
problem
Given two strings, find the longest of the strings contained in both strings and write a program that answers that length.
Here, the string s included in the string t means that s appears consecutively in t. An empty string, that is, a stri... | instruction | 0 | 58,791 | 0 | 117,582 |
"Correct Solution:
```
while True:
try:
s1 = input()
except EOFError:
break
s2 = input()
BASE = 27
MOD = 1000000007
def rolling_hash(s):
h_lst = [0]
for c in s:
h_lst.append((h_lst[-1] * BASE + ord(c)) % MOD)
return h_lst
h_lst1 = rolli... | output | 1 | 58,791 | 0 | 117,583 |
Provide a correct Python 3 solution for this coding contest problem.
problem
Given two strings, find the longest of the strings contained in both strings and write a program that answers that length.
Here, the string s included in the string t means that s appears consecutively in t. An empty string, that is, a stri... | instruction | 0 | 58,792 | 0 | 117,584 |
"Correct Solution:
```
while 1:
try:s=input()
except:break
t=input()
if len(s)<len(t):s,t=t,s
a=sum(min(s.count(i),t.count(i)) for i in set(s)&set(t))
b=0
for x in range(len(t)):
if len(t)-x<=b:break
for y in range(b+1,min(a+1,len(t)-x+1)):
if t[x:x+y] in s:b=y
... | output | 1 | 58,792 | 0 | 117,585 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
problem
Given two strings, find the longest of the strings contained in both strings and write a program that answers that length.
Here, the string s included in the string t means that s appe... | instruction | 0 | 58,793 | 0 | 117,586 |
No | output | 1 | 58,793 | 0 | 117,587 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
problem
Given two strings, find the longest of the strings contained in both strings and write a program that answers that length.
Here, the string s included in the string t means that s appe... | instruction | 0 | 58,794 | 0 | 117,588 |
No | output | 1 | 58,794 | 0 | 117,589 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
problem
Given two strings, find the longest of the strings contained in both strings and write a program that answers that length.
Here, the string s included in the string t means that s appe... | instruction | 0 | 58,795 | 0 | 117,590 |
No | output | 1 | 58,795 | 0 | 117,591 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
problem
Given two strings, find the longest of the strings contained in both strings and write a program that answers that length.
Here, the string s included in the string t means that s appe... | instruction | 0 | 58,796 | 0 | 117,592 |
No | output | 1 | 58,796 | 0 | 117,593 |
Provide tags and a correct Python 3 solution for this coding contest problem.
This is the easy version of the problem. The difference between the versions is the constraint on n and the required number of operations. You can make hacks only if all versions of the problem are solved.
There are two binary strings a and... | instruction | 0 | 59,027 | 0 | 118,054 |
Tags: constructive algorithms, data structures, strings
Correct Solution:
```
import sys
import math
from collections import defaultdict,Counter
# input=sys.stdin.readline
# def print(x):
# sys.stdout.write(str(x)+"\n")
# sys.stdout=open("CP2/output.txt",'w')
# sys.stdin=open("CP2/input.txt",'r')
# m=pow(10,9)+7... | output | 1 | 59,027 | 0 | 118,055 |
Provide tags and a correct Python 3 solution for this coding contest problem.
This is the easy version of the problem. The difference between the versions is the constraint on n and the required number of operations. You can make hacks only if all versions of the problem are solved.
There are two binary strings a and... | instruction | 0 | 59,028 | 0 | 118,056 |
Tags: constructive algorithms, data structures, strings
Correct Solution:
```
def funny(a,l):
m=[]
for i in range(a):
l[i]=1-l[i]
m.append(l[i])
m.reverse()
l=m[:]+l[a:]
return l
t=int(input())
final=[]
for i in range(t):
n=int(input())
a=[int(x) for x in input()]
b=[int(... | output | 1 | 59,028 | 0 | 118,057 |
Provide tags and a correct Python 3 solution for this coding contest problem.
This is the easy version of the problem. The difference between the versions is the constraint on n and the required number of operations. You can make hacks only if all versions of the problem are solved.
There are two binary strings a and... | instruction | 0 | 59,029 | 0 | 118,058 |
Tags: constructive algorithms, data structures, strings
Correct Solution:
```
from sys import stdin
input = stdin.readline
for _ in range(int(input())):
n = int(input())
a = input().strip()
b = input().strip()
bi = n-1
f = 0
l, r = 0, n-1
ans = []
#temp = list(a)
while l!=r:
... | output | 1 | 59,029 | 0 | 118,059 |
Provide tags and a correct Python 3 solution for this coding contest problem.
This is the easy version of the problem. The difference between the versions is the constraint on n and the required number of operations. You can make hacks only if all versions of the problem are solved.
There are two binary strings a and... | instruction | 0 | 59,030 | 0 | 118,060 |
Tags: constructive algorithms, data structures, strings
Correct Solution:
```
import sys
t=int(input())
for _ in range(t):
n=int(input())
tempa=input()
tempb=input()
a=[]
for i in tempa:
a.append(int(i))
b=[]
for i in tempb:
b.append(int(i))
count=0
anslist=[]
for i in range(n-1,-1,-1):
if(a[i]!=b[i]):... | output | 1 | 59,030 | 0 | 118,061 |
Provide tags and a correct Python 3 solution for this coding contest problem.
This is the easy version of the problem. The difference between the versions is the constraint on n and the required number of operations. You can make hacks only if all versions of the problem are solved.
There are two binary strings a and... | instruction | 0 | 59,031 | 0 | 118,062 |
Tags: constructive algorithms, data structures, strings
Correct Solution:
```
z=input
mod = 10**9 + 7
from collections import *
from queue import *
from sys import *
from collections import *
from math import *
from heapq import *
from itertools import *
from bisect import *
from collections import Counter as cc
from m... | output | 1 | 59,031 | 0 | 118,063 |
Provide tags and a correct Python 3 solution for this coding contest problem.
This is the easy version of the problem. The difference between the versions is the constraint on n and the required number of operations. You can make hacks only if all versions of the problem are solved.
There are two binary strings a and... | instruction | 0 | 59,032 | 0 | 118,064 |
Tags: constructive algorithms, data structures, strings
Correct Solution:
```
def flip(s, k):
pre = ''.join(
reversed([
'1' if _ == '0' else '0'
for _ in s[:k]])
)
pos = s[k:]
return pre+pos
for _ in range(int(input())):
n = int(input())
a = input()
b = input... | output | 1 | 59,032 | 0 | 118,065 |
Provide tags and a correct Python 3 solution for this coding contest problem.
This is the easy version of the problem. The difference between the versions is the constraint on n and the required number of operations. You can make hacks only if all versions of the problem are solved.
There are two binary strings a and... | instruction | 0 | 59,033 | 0 | 118,066 |
Tags: constructive algorithms, data structures, strings
Correct Solution:
```
import sys
input=sys.stdin.readline
t=int(input())
for tt in range(t):
n = int(input())
a1 = input().strip("\n")
b1 = input().strip("\n")
ans = []
a = []
b = []
for i in a1:
a.append(int(i))
for i in b1... | output | 1 | 59,033 | 0 | 118,067 |
Provide tags and a correct Python 3 solution for this coding contest problem.
This is the easy version of the problem. The difference between the versions is the constraint on n and the required number of operations. You can make hacks only if all versions of the problem are solved.
There are two binary strings a and... | instruction | 0 | 59,034 | 0 | 118,068 |
Tags: constructive algorithms, data structures, strings
Correct Solution:
```
from sys import stdin, gettrace
if gettrace():
inputi = input
else:
def input():
return next(stdin)[:-1]
def inputi():
return stdin.buffer.readline()
def solve():
n = int(input())
aa = list(input())
... | output | 1 | 59,034 | 0 | 118,069 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
This is the easy version of the problem. The difference between the versions is the constraint on n and the required number of operations. You can make hacks only if all versions of the problem ... | instruction | 0 | 59,035 | 0 | 118,070 |
Yes | output | 1 | 59,035 | 0 | 118,071 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
This is the easy version of the problem. The difference between the versions is the constraint on n and the required number of operations. You can make hacks only if all versions of the problem ... | instruction | 0 | 59,036 | 0 | 118,072 |
Yes | output | 1 | 59,036 | 0 | 118,073 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
This is the easy version of the problem. The difference between the versions is the constraint on n and the required number of operations. You can make hacks only if all versions of the problem ... | instruction | 0 | 59,037 | 0 | 118,074 |
Yes | output | 1 | 59,037 | 0 | 118,075 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
This is the easy version of the problem. The difference between the versions is the constraint on n and the required number of operations. You can make hacks only if all versions of the problem ... | instruction | 0 | 59,038 | 0 | 118,076 |
Yes | output | 1 | 59,038 | 0 | 118,077 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
This is the easy version of the problem. The difference between the versions is the constraint on n and the required number of operations. You can make hacks only if all versions of the problem ... | instruction | 0 | 59,039 | 0 | 118,078 |
No | output | 1 | 59,039 | 0 | 118,079 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
This is the easy version of the problem. The difference between the versions is the constraint on n and the required number of operations. You can make hacks only if all versions of the problem ... | instruction | 0 | 59,040 | 0 | 118,080 |
No | output | 1 | 59,040 | 0 | 118,081 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
This is the easy version of the problem. The difference between the versions is the constraint on n and the required number of operations. You can make hacks only if all versions of the problem ... | instruction | 0 | 59,041 | 0 | 118,082 |
No | output | 1 | 59,041 | 0 | 118,083 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
This is the easy version of the problem. The difference between the versions is the constraint on n and the required number of operations. You can make hacks only if all versions of the problem ... | instruction | 0 | 59,042 | 0 | 118,084 |
No | output | 1 | 59,042 | 0 | 118,085 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Levko loves strings of length n, consisting of lowercase English letters, very much. He has one such string s. For each string t of length n, Levko defines its beauty relative to s as the number... | instruction | 0 | 59,180 | 0 | 118,360 |
No | output | 1 | 59,180 | 0 | 118,361 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You have a string s of length n consisting of only characters > and <. You may do some operations with this string, for each operation you have to choose some character that still remains in the string. If you choose a character >, the chara... | instruction | 0 | 59,764 | 0 | 119,528 |
Tags: implementation, strings
Correct Solution:
```
for _ in range(int(input())):
n=int(input())
s=input()
for i in range(n):
if(s[i]=='>'):
break
for j in range(n):
if(s[n-1-j]=='<'):
break
print(min(i,j))
``` | output | 1 | 59,764 | 0 | 119,529 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You have a string s of length n consisting of only characters > and <. You may do some operations with this string, for each operation you have to choose some character that still remains in the string. If you choose a character >, the chara... | instruction | 0 | 59,765 | 0 | 119,530 |
Tags: implementation, strings
Correct Solution:
```
t = int(input())
while t:
t -= 1
n = int(input())
s = input()
if s[0] == '<' and s[n - 1] == '>':
c1 = 0
for i in s:
if i == '<': c1 += 1
else: break
c2 = 0
for i in range(n - 1, -1, -1):
... | output | 1 | 59,765 | 0 | 119,531 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You have a string s of length n consisting of only characters > and <. You may do some operations with this string, for each operation you have to choose some character that still remains in the string. If you choose a character >, the chara... | instruction | 0 | 59,766 | 0 | 119,532 |
Tags: implementation, strings
Correct Solution:
```
n = int(input())
Tests = []
for i in range(2*n):
if (i % 2 == 0):
input()
continue
else:
Tests.append(input())
for i in range(n):
max_left = 10**6
max_right = 10**6
for j in range(len(Tests[i])):
if Tests[i][j] == ... | output | 1 | 59,766 | 0 | 119,533 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You have a string s of length n consisting of only characters > and <. You may do some operations with this string, for each operation you have to choose some character that still remains in the string. If you choose a character >, the chara... | instruction | 0 | 59,767 | 0 | 119,534 |
Tags: implementation, strings
Correct Solution:
```
Q = int(input())
for _ in range(Q):
n = int(input())
s = input()
ans = 1000
for i, v in enumerate(s):
if v == '>':
break
ans = i
for i, v in enumerate(s[::-1]):
if v == '<':
break
ans = min(ans, i)
... | output | 1 | 59,767 | 0 | 119,535 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You have a string s of length n consisting of only characters > and <. You may do some operations with this string, for each operation you have to choose some character that still remains in the string. If you choose a character >, the chara... | instruction | 0 | 59,768 | 0 | 119,536 |
Tags: implementation, strings
Correct Solution:
```
t=int(input())
for i in range(t):
n=int(input())
s=input()
l1=len(s)
if s[0]=='<' and s[-1]=='>':
c1=0
i=0
while s[i]!='>':
i=i+1
c1=c1+1
c2=0
i=n-1
while s[i]!='<':
i=... | output | 1 | 59,768 | 0 | 119,537 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You have a string s of length n consisting of only characters > and <. You may do some operations with this string, for each operation you have to choose some character that still remains in the string. If you choose a character >, the chara... | instruction | 0 | 59,769 | 0 | 119,538 |
Tags: implementation, strings
Correct Solution:
```
import math
t = int(input())
for i in range(t):
n = int(input())
s = input()
first = 0
second = 0
for i in range(n):
if s[i] == '>':
first = i
break
for i in range(n - 1, -1, -1):
if s[i] == '<':
... | output | 1 | 59,769 | 0 | 119,539 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You have a string s of length n consisting of only characters > and <. You may do some operations with this string, for each operation you have to choose some character that still remains in the string. If you choose a character >, the chara... | instruction | 0 | 59,770 | 0 | 119,540 |
Tags: implementation, strings
Correct Solution:
```
for _ in range(int(input())):
n = int(input())
s = input()
ans = n - 1
for i in range(n):
if(s[i] == '>' or s[n-i-1] == '<'):
ans = i
break
print(ans)
``` | output | 1 | 59,770 | 0 | 119,541 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You have a string s of length n consisting of only characters > and <. You may do some operations with this string, for each operation you have to choose some character that still remains in the string. If you choose a character >, the chara... | instruction | 0 | 59,771 | 0 | 119,542 |
Tags: implementation, strings
Correct Solution:
```
T = int(input())
for _ in range(T):
N = int(input())
S = input()
before = 0
for c in S:
if c == '<':
before += 1
else:
break
if before == N:
print(0)
continue
after = 0
for i... | output | 1 | 59,771 | 0 | 119,543 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You have a string s of length n consisting of only characters > and <. You may do some operations with this string, for each operation you have to choose some character that still remains in the... | instruction | 0 | 59,772 | 0 | 119,544 |
Yes | output | 1 | 59,772 | 0 | 119,545 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You have a string s of length n consisting of only characters > and <. You may do some operations with this string, for each operation you have to choose some character that still remains in the... | instruction | 0 | 59,773 | 0 | 119,546 |
Yes | output | 1 | 59,773 | 0 | 119,547 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You have a string s of length n consisting of only characters > and <. You may do some operations with this string, for each operation you have to choose some character that still remains in the... | instruction | 0 | 59,774 | 0 | 119,548 |
Yes | output | 1 | 59,774 | 0 | 119,549 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You have a string s of length n consisting of only characters > and <. You may do some operations with this string, for each operation you have to choose some character that still remains in the... | instruction | 0 | 59,775 | 0 | 119,550 |
Yes | output | 1 | 59,775 | 0 | 119,551 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You have a string s of length n consisting of only characters > and <. You may do some operations with this string, for each operation you have to choose some character that still remains in the... | instruction | 0 | 59,776 | 0 | 119,552 |
No | output | 1 | 59,776 | 0 | 119,553 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You have a string s of length n consisting of only characters > and <. You may do some operations with this string, for each operation you have to choose some character that still remains in the... | instruction | 0 | 59,777 | 0 | 119,554 |
No | output | 1 | 59,777 | 0 | 119,555 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You have a string s of length n consisting of only characters > and <. You may do some operations with this string, for each operation you have to choose some character that still remains in the... | instruction | 0 | 59,778 | 0 | 119,556 |
No | output | 1 | 59,778 | 0 | 119,557 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You have a string s of length n consisting of only characters > and <. You may do some operations with this string, for each operation you have to choose some character that still remains in the... | instruction | 0 | 59,779 | 0 | 119,558 |
No | output | 1 | 59,779 | 0 | 119,559 |
Provide a correct Python 3 solution for this coding contest problem.
Takahashi has a string S of length N consisting of lowercase English letters. On this string, he will perform the following operation K times:
* Let T be the string obtained by reversing S, and U be the string obtained by concatenating S and T in th... | instruction | 0 | 60,431 | 0 | 120,862 |
"Correct Solution:
```
n,k=map(int,input().split())
s=input()
u=s+s[::-1]
t=min(u[i:i+n]for i in range(n+1))
h=t[0]
i=min(i for i in range(n)if t[i]!=h)
j=i<<min(k-1,13)
print((h*j+t[i:i+n-j])[:n])
``` | output | 1 | 60,431 | 0 | 120,863 |
Provide a correct Python 3 solution for this coding contest problem.
Takahashi has a string S of length N consisting of lowercase English letters. On this string, he will perform the following operation K times:
* Let T be the string obtained by reversing S, and U be the string obtained by concatenating S and T in th... | instruction | 0 | 60,432 | 0 | 120,864 |
"Correct Solution:
```
n,k=map(int,input().split())
s=list(input())
l=0
c=0
for i in range(n):
if s[i]==min(s):
c+=1
l=max(l,c)
else:
c=0
import sys
input=sys.stdin.readline
s.reverse()
if (2**(k-1))*l>n:
print(min(s)*n)
else:
for i in range(min(k,13)):
t=list(reversed(s)... | output | 1 | 60,432 | 0 | 120,865 |
Provide a correct Python 3 solution for this coding contest problem.
Takahashi has a string S of length N consisting of lowercase English letters. On this string, he will perform the following operation K times:
* Let T be the string obtained by reversing S, and U be the string obtained by concatenating S and T in th... | instruction | 0 | 60,433 | 0 | 120,866 |
"Correct Solution:
```
n, k=map(int, input().split())
s=input()
u=s+s[::-1]
ans=min(u[i:i+n] for i in range(n+1))
c=ans[0]
i=min(i for i in range(n) if c!=ans[i])
h=(i<<min(k-1, 13))
ret=(h*c+ans[i:i+n-h])[:n]
print(ret)
``` | output | 1 | 60,433 | 0 | 120,867 |
Provide a correct Python 3 solution for this coding contest problem.
Takahashi has a string S of length N consisting of lowercase English letters. On this string, he will perform the following operation K times:
* Let T be the string obtained by reversing S, and U be the string obtained by concatenating S and T in th... | instruction | 0 | 60,434 | 0 | 120,868 |
"Correct Solution:
```
n,k=map(int,input().split())
s=input()
r=range(n)
u=min((s+s[::-1])[i:]for i in r)
i=min(i for i in r if u[i]!=u[0])
print((u[0]*min(i<<k-1,n)+u[i:])[:n])
``` | output | 1 | 60,434 | 0 | 120,869 |
Provide a correct Python 3 solution for this coding contest problem.
Takahashi has a string S of length N consisting of lowercase English letters. On this string, he will perform the following operation K times:
* Let T be the string obtained by reversing S, and U be the string obtained by concatenating S and T in th... | instruction | 0 | 60,435 | 0 | 120,870 |
"Correct Solution:
```
n,k=map(int,input().split())
s=input()
d=s+s[::-1]
d=d[::-1]
r=d[:n]
e=d[:n]
for i in range(n):
e=e[1:]+d[n+i]
r=min(r,e)
t=1
qo=r[0]
for i in range(1,n):
if qo==r[i]:
t+=1
else:
break
r=r[::-1]
for i in range(k-1):
p=r+r[n-t:]
p=p[::-1]
p=p[:n]
if ... | output | 1 | 60,435 | 0 | 120,871 |
Provide a correct Python 3 solution for this coding contest problem.
Takahashi has a string S of length N consisting of lowercase English letters. On this string, he will perform the following operation K times:
* Let T be the string obtained by reversing S, and U be the string obtained by concatenating S and T in th... | instruction | 0 | 60,436 | 0 | 120,872 |
"Correct Solution:
```
n,k=map(int,input().split())
s=input()
slist=list(s)
num=0
for i in range(17):
if 2**num>=n:
num+=1
break
num+=1
if k>=num:
slist.sort()
ans=slist[0]*n
print(ans)
else:
for i in range(n):
slist.append(slist[n-1-i])
s1=[]
for i in range(n+1):... | output | 1 | 60,436 | 0 | 120,873 |
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