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.
Once when Gerald studied in the first year at school, his teacher gave the class the following homework. She offered the students a string consisting of n small Latin letters; the task was to le... | instruction | 0 | 32,500 | 0 | 65,000 |
Yes | output | 1 | 32,500 | 0 | 65,001 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Once when Gerald studied in the first year at school, his teacher gave the class the following homework. She offered the students a string consisting of n small Latin letters; the task was to le... | instruction | 0 | 32,501 | 0 | 65,002 |
Yes | output | 1 | 32,501 | 0 | 65,003 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Once when Gerald studied in the first year at school, his teacher gave the class the following homework. She offered the students a string consisting of n small Latin letters; the task was to le... | instruction | 0 | 32,502 | 0 | 65,004 |
Yes | output | 1 | 32,502 | 0 | 65,005 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Once when Gerald studied in the first year at school, his teacher gave the class the following homework. She offered the students a string consisting of n small Latin letters; the task was to le... | instruction | 0 | 32,503 | 0 | 65,006 |
Yes | output | 1 | 32,503 | 0 | 65,007 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Once when Gerald studied in the first year at school, his teacher gave the class the following homework. She offered the students a string consisting of n small Latin letters; the task was to le... | instruction | 0 | 32,504 | 0 | 65,008 |
No | output | 1 | 32,504 | 0 | 65,009 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Once when Gerald studied in the first year at school, his teacher gave the class the following homework. She offered the students a string consisting of n small Latin letters; the task was to le... | instruction | 0 | 32,505 | 0 | 65,010 |
No | output | 1 | 32,505 | 0 | 65,011 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Once when Gerald studied in the first year at school, his teacher gave the class the following homework. She offered the students a string consisting of n small Latin letters; the task was to le... | instruction | 0 | 32,506 | 0 | 65,012 |
No | output | 1 | 32,506 | 0 | 65,013 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Once when Gerald studied in the first year at school, his teacher gave the class the following homework. She offered the students a string consisting of n small Latin letters; the task was to le... | instruction | 0 | 32,507 | 0 | 65,014 |
No | output | 1 | 32,507 | 0 | 65,015 |
Provide tags and a correct Python 3 solution for this coding contest problem.
In this problem, we will deal with binary strings. Each character of a binary string is either a 0 or a 1. We will also deal with substrings; recall that a substring is a contiguous subsequence of a string. We denote the substring of string ... | instruction | 0 | 32,667 | 0 | 65,334 |
Tags: data structures, hashing, strings
Correct Solution:
```
import sys
input = sys.stdin.readline
MOD = 987654103
n = int(input())
t = input()
place = []
f1 = []
e1 = []
s = []
curr = 0
count1 = 0
for i in range(n):
c = t[i]
if c == '0':
if count1:
e1.append(i - 1)
if count... | output | 1 | 32,667 | 0 | 65,335 |
Provide tags and a correct Python 3 solution for this coding contest problem.
In this problem, we will deal with binary strings. Each character of a binary string is either a 0 or a 1. We will also deal with substrings; recall that a substring is a contiguous subsequence of a string. We denote the substring of string ... | instruction | 0 | 32,668 | 0 | 65,336 |
Tags: data structures, hashing, strings
Correct Solution:
```
import sys
input = sys.stdin.readline
n=int(input())
t=input().strip()
q=int(input())
ZEROS=[0]*n
ZERO_ONE=[]
ONECOUNT=[0]*n
ind=0
count=0
for i in range(n):
ZEROS[i]=ind
if t[i]=="0":
ind+=1
ONECOUNT[i]=count%2
ZERO_ONE.ap... | output | 1 | 32,668 | 0 | 65,337 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
In this problem, we will deal with binary strings. Each character of a binary string is either a 0 or a 1. We will also deal with substrings; recall that a substring is a contiguous subsequence ... | instruction | 0 | 32,669 | 0 | 65,338 |
No | output | 1 | 32,669 | 0 | 65,339 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
In this problem, we will deal with binary strings. Each character of a binary string is either a 0 or a 1. We will also deal with substrings; recall that a substring is a contiguous subsequence ... | instruction | 0 | 32,670 | 0 | 65,340 |
No | output | 1 | 32,670 | 0 | 65,341 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
In this problem, we will deal with binary strings. Each character of a binary string is either a 0 or a 1. We will also deal with substrings; recall that a substring is a contiguous subsequence ... | instruction | 0 | 32,671 | 0 | 65,342 |
No | output | 1 | 32,671 | 0 | 65,343 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
In this problem, we will deal with binary strings. Each character of a binary string is either a 0 or a 1. We will also deal with substrings; recall that a substring is a contiguous subsequence ... | instruction | 0 | 32,672 | 0 | 65,344 |
No | output | 1 | 32,672 | 0 | 65,345 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You have a string s = s1s2...s|s|, where |s| is the length of string s, and si its i-th character.
Let's introduce several definitions:
* A substring s[i..j] (1 ≤ i ≤ j ≤ |s|) of string s is string sisi + 1...sj.
* The prefix of stri... | instruction | 0 | 32,890 | 0 | 65,780 |
Tags: dp, string suffix structures, strings, two pointers
Correct Solution:
```
def calculate_z_array(s):
n = len(s)
z = [0]*n
z[0] = n
l = 0
r = 0
for i in range(1, n):
if(i>=l and i<=r):
z[i] = min(z[i-l], r-i+1)
while(i+z[i]<n and s[z[i]] == s[z[i]+i]):
... | output | 1 | 32,890 | 0 | 65,781 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You have a string s = s1s2...s|s|, where |s| is the length of string s, and si its i-th character.
Let's introduce several definitions:
* A substring s[i..j] (1 ≤ i ≤ j ≤ |s|) of string s is string sisi + 1...sj.
* The prefix of stri... | instruction | 0 | 32,891 | 0 | 65,782 |
Tags: dp, string suffix structures, strings, two pointers
Correct Solution:
```
def zfunc(s):
n = len(s)
z = [0] * n
left = right = 0
for i in range(1, n):
if i <= right:
z[i] = min(z[i - left], right - i + 1)
while i + z[i] < n and s[z[i]] == s[i + z[i]]:
z[i] +=... | output | 1 | 32,891 | 0 | 65,783 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You have a string s = s1s2...s|s|, where |s| is the length of string s, and si its i-th character.
Let's introduce several definitions:
* A substring s[i..j] (1 ≤ i ≤ j ≤ |s|) of string s is string sisi + 1...sj.
* The prefix of stri... | instruction | 0 | 32,892 | 0 | 65,784 |
Tags: dp, string suffix structures, strings, two pointers
Correct Solution:
```
import sys
import bisect
input_=lambda: sys.stdin.readline().strip("\r\n")
from math import log
from math import gcd
from random import randint
sa=lambda :input_()
sb=lambda:int(input_())
sc=lambda:input_().split()
sd=lambda:list(map(int,in... | output | 1 | 32,892 | 0 | 65,785 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You have a string s = s1s2...s|s|, where |s| is the length of string s, and si its i-th character.
Let's introduce several definitions:
* A substring s[i..j] (1 ≤ i ≤ j ≤ |s|) of string s is string sisi + 1...sj.
* The prefix of stri... | instruction | 0 | 32,893 | 0 | 65,786 |
Tags: dp, string suffix structures, strings, two pointers
Correct Solution:
```
s = input()
n = len(s)
p = [0]*(n+1)
ans = [0]*(n+1)
j = 0
li = [n]
for i in range(1,n):
while(j>0 and s[i]!=s[j]):
j = p[j-1]
if(s[i]==s[j]):
j+=1
p[i] = j
for i in range(0,n):
ans[p[i]... | output | 1 | 32,893 | 0 | 65,787 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You have a string s = s1s2...s|s|, where |s| is the length of string s, and si its i-th character.
Let's introduce several definitions:
* A substring s[i..j] (1 ≤ i ≤ j ≤ |s|) of string s is string sisi + 1...sj.
* The prefix of stri... | instruction | 0 | 32,894 | 0 | 65,788 |
Tags: dp, string suffix structures, strings, two pointers
Correct Solution:
```
import sys
import random
import bisect
from collections import deque
#sys.setrecursionlimit(10**6)
from queue import PriorityQueue
from math import gcd
input_ = lambda: sys.stdin.readline().strip("\r\n")
ii = lambda : int(input_())
il = lam... | output | 1 | 32,894 | 0 | 65,789 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You have a string s = s1s2...s|s|, where |s| is the length of string s, and si its i-th character.
Let's introduce several definitions:
* A substring s[i..j] (1 ≤ i ≤ j ≤ |s|) of string s is string sisi + 1...sj.
* The prefix of stri... | instruction | 0 | 32,895 | 0 | 65,790 |
Tags: dp, string suffix structures, strings, two pointers
Correct Solution:
```
import sys
input = sys.stdin.readline
from collections import deque
S=input().strip()
LEN=len(S)
i=1
j=0
A=[0]*LEN
A[0]=LEN
while i<LEN:
while i+j<LEN and S[j]==S[i+j]:
j+=1
A[i]=j
if j==0:
i+=1
... | output | 1 | 32,895 | 0 | 65,791 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You have a string s = s1s2...s|s|, where |s| is the length of string s, and si its i-th character.
Let's introduce several definitions:
* A substring s[i..j] (1 ≤ i ≤ j ≤ |s|) of string s is string sisi + 1...sj.
* The prefix of stri... | instruction | 0 | 32,896 | 0 | 65,792 |
Tags: dp, string suffix structures, strings, two pointers
Correct Solution:
```
s = ' ' + input()
n = len(s)
r, c = [-1] * n, [1] * n
for i in range(1, n):
r[i] = r[i - 1] + 1
while r[i] and s[r[i]] != s[i]:
r[i] = r[r[i] - 1] + 1
d, n = [], n - 1
for i in range(n, 1, -1): c[r[i]] += c[i]
while n > 0:
... | output | 1 | 32,896 | 0 | 65,793 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You have a string s = s1s2...s|s|, where |s| is the length of string s, and si its i-th character.
Let's introduce several definitions:
* A substring s[i..j] (1 ≤ i ≤ j ≤ |s|) of string s is string sisi + 1...sj.
* The prefix of stri... | instruction | 0 | 32,897 | 0 | 65,794 |
Tags: dp, string suffix structures, strings, two pointers
Correct Solution:
```
from itertools import accumulate
def z_algorithm(s):
n = len(s)
l, d = 1, 0
ans = [0] * n
ans[0] = n
while l < n:
while l + d < n and s[d] == s[l + d]:
d += 1
ans[l] = d
if d == 0:
... | output | 1 | 32,897 | 0 | 65,795 |
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 = s1s2...s|s|, where |s| is the length of string s, and si its i-th character.
Let's introduce several definitions:
* A substring s[i..j] (1 ≤ i ≤ j ≤ |s|) of string s i... | instruction | 0 | 32,898 | 0 | 65,796 |
Yes | output | 1 | 32,898 | 0 | 65,797 |
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 = s1s2...s|s|, where |s| is the length of string s, and si its i-th character.
Let's introduce several definitions:
* A substring s[i..j] (1 ≤ i ≤ j ≤ |s|) of string s i... | instruction | 0 | 32,899 | 0 | 65,798 |
Yes | output | 1 | 32,899 | 0 | 65,799 |
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 = s1s2...s|s|, where |s| is the length of string s, and si its i-th character.
Let's introduce several definitions:
* A substring s[i..j] (1 ≤ i ≤ j ≤ |s|) of string s i... | instruction | 0 | 32,900 | 0 | 65,800 |
Yes | output | 1 | 32,900 | 0 | 65,801 |
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 = s1s2...s|s|, where |s| is the length of string s, and si its i-th character.
Let's introduce several definitions:
* A substring s[i..j] (1 ≤ i ≤ j ≤ |s|) of string s i... | instruction | 0 | 32,901 | 0 | 65,802 |
Yes | output | 1 | 32,901 | 0 | 65,803 |
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 = s1s2...s|s|, where |s| is the length of string s, and si its i-th character.
Let's introduce several definitions:
* A substring s[i..j] (1 ≤ i ≤ j ≤ |s|) of string s i... | instruction | 0 | 32,902 | 0 | 65,804 |
No | output | 1 | 32,902 | 0 | 65,805 |
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 = s1s2...s|s|, where |s| is the length of string s, and si its i-th character.
Let's introduce several definitions:
* A substring s[i..j] (1 ≤ i ≤ j ≤ |s|) of string s i... | instruction | 0 | 32,903 | 0 | 65,806 |
No | output | 1 | 32,903 | 0 | 65,807 |
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 = s1s2...s|s|, where |s| is the length of string s, and si its i-th character.
Let's introduce several definitions:
* A substring s[i..j] (1 ≤ i ≤ j ≤ |s|) of string s i... | instruction | 0 | 32,904 | 0 | 65,808 |
No | output | 1 | 32,904 | 0 | 65,809 |
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 = s1s2...s|s|, where |s| is the length of string s, and si its i-th character.
Let's introduce several definitions:
* A substring s[i..j] (1 ≤ i ≤ j ≤ |s|) of string s i... | instruction | 0 | 32,905 | 0 | 65,810 |
No | output | 1 | 32,905 | 0 | 65,811 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Let's call a string "s-palindrome" if it is symmetric about the middle of the string. For example, the string "oHo" is "s-palindrome", but the string "aa" is not. The string "aa" is not "s-palindrome", because the second half of it is not a ... | instruction | 0 | 33,002 | 0 | 66,004 |
Tags: implementation, strings
Correct Solution:
```
rever = "AHIMOTUVWXYovwx"
rev = ["bd", "pq","db","qp"]
line = input().rstrip()
if len(line) & 1 and line[len(line) // 2] not in rever:
print("NIE")
exit()
l = len(line) // 2 - 1
r = len(line) // 2 if len(line) & 1 == 0 else\
len(line) // 2 + 1
for i in r... | output | 1 | 33,002 | 0 | 66,005 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Let's call a string "s-palindrome" if it is symmetric about the middle of the string. For example, the string "oHo" is "s-palindrome", but the string "aa" is not. The string "aa" is not "s-palindrome", because the second half of it is not a ... | instruction | 0 | 33,003 | 0 | 66,006 |
Tags: implementation, strings
Correct Solution:
```
lst = [
'AA', 'HH', 'II', 'MM', 'OO', 'TT', 'UU', 'VV', 'WW', 'XX', 'YY',
'bd', 'db', 'oo', 'pq', 'qp', 'vv', 'ww', 'xx'
]
def palindrom(s):
l, r = 0, len(s) - 1
while l <= r:
if s[l] + s[r] not in lst:
return "NIE"
l += 1... | output | 1 | 33,003 | 0 | 66,007 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Let's call a string "s-palindrome" if it is symmetric about the middle of the string. For example, the string "oHo" is "s-palindrome", but the string "aa" is not. The string "aa" is not "s-palindrome", because the second half of it is not a ... | instruction | 0 | 33,004 | 0 | 66,008 |
Tags: implementation, strings
Correct Solution:
```
def main():
s = input()
for a, b in zip(s, s[::-1]):
if a != {'A': 'A', 'H': 'H', 'I': 'I', 'M': 'M', 'O': 'O', 'T': 'T', 'U': 'U', 'V': 'V', 'W': 'W', 'X': 'X',
'Y': 'Y', 'b': 'd', 'd': 'b', 'o': 'o', 'p': 'q', 'q': 'p', 'v': 'v', 'w'... | output | 1 | 33,004 | 0 | 66,009 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Let's call a string "s-palindrome" if it is symmetric about the middle of the string. For example, the string "oHo" is "s-palindrome", but the string "aa" is not. The string "aa" is not "s-palindrome", because the second half of it is not a ... | instruction | 0 | 33,006 | 0 | 66,012 |
Tags: implementation, strings
Correct Solution:
```
s = input()
n = len(s)
c = ['A', 'H', 'I', 'M', 'O', 'o', 'T', 'U', 'V', 'v', 'W', 'w', 'X', 'x', 'Y']
p = ['b', 'd', 'q', 'p']
ok = 1
for i in range(n):
if s[i] == s[n-i-1] or (s[i] in p and s[n-i-1] in p):
continue
ok = 0
if ok == 1:
for i in range(n):
if s[... | output | 1 | 33,006 | 0 | 66,013 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Let's call a string "s-palindrome" if it is symmetric about the middle of the string. For example, the string "oHo" is "s-palindrome", but the string "aa" is not. The string "aa" is not "s-palindrome", because the second half of it is not a ... | instruction | 0 | 33,007 | 0 | 66,014 |
Tags: implementation, strings
Correct Solution:
```
s = input()
n = len(s)
pair = {
"a" : -1, "A" : "A",
"b" : "d", "B" : -1,
"c" : -1, "C" : -1,
"d" : "b", "D" : -1,
"e" : -1, "E" : -1,
"f" : -1, "F" : -1,
"g" : -1, "G" : -1,
"h" : -1, "H" : "H",
... | output | 1 | 33,007 | 0 | 66,015 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Let's call a string "s-palindrome" if it is symmetric about the middle of the string. For example, the string "oHo" is "s-palindrome", but the string "aa" is not. The string "aa" is not "s-palindrome", because the second half of it is not a ... | instruction | 0 | 33,008 | 0 | 66,016 |
Tags: implementation, strings
Correct Solution:
```
s = input()
D = {'A': 'A', 'b': 'd', 'd': 'b', 'H': 'H', 'I': 'I', 'M': 'M', 'O': 'O', 'o': 'o', 'p': 'q', 'q': 'p', 'T': 'T', 'U': 'U', 'V': 'V', 'v': 'v', 'W': 'W', 'w': 'w', 'X': 'X', 'x': 'x', 'Y': 'Y'}
for(c1,c2) in zip(s, s[::-1]):
if(D.get(c1, '') != c2):
... | output | 1 | 33,008 | 0 | 66,017 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Let's call a string "s-palindrome" if it is symmetric about the middle of the string. For example, the string "oHo" is "s-palindrome", but the string "aa" is not. The string "aa" is not "s-palindrome", because the second half of it is not a ... | instruction | 0 | 33,009 | 0 | 66,018 |
Tags: implementation, strings
Correct Solution:
```
#!/usr/bin/python3.4
a="AHIMOTUVWXYovwx"
b={'b':'d', 'd':'b', 'p':'q', 'q':'p'}
s=str(input())
ok = True
slen = len(s)
for i in range((slen - 1) // 2 + 1):
if (s[i] in a and s[i] == s[slen - i - 1]) or (b.get(s[i], 0) and b[s[i]] == s[slen - 1 - i]):
continue
els... | output | 1 | 33,009 | 0 | 66,019 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a string S of length N consisting of lowercase English letters. We will cut this string at one position into two strings X and Y. Here, we would like to maximize the number of different letters contained in both X and Y. Find the larges... | instruction | 0 | 33,183 | 0 | 66,366 |
"Correct Solution:
```
n = int(input())
s = input()
count = 0
for i in range(n):
count = max(count, len(set(s[:i]) & set(s[i:])))
print(count)
``` | output | 1 | 33,183 | 0 | 66,367 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a string S of length N consisting of lowercase English letters. We will cut this string at one position into two strings X and Y. Here, we would like to maximize the number of different letters contained in both X and Y. Find the larges... | instruction | 0 | 33,184 | 0 | 66,368 |
"Correct Solution:
```
N=int(input())
S=input()
m=0
for i in range(1,N):
X=S[0:i]
Y=S[i:]
a=len(set(X) & set(Y))
if a>m:
m=a
print(m)
``` | output | 1 | 33,184 | 0 | 66,369 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a string S of length N consisting of lowercase English letters. We will cut this string at one position into two strings X and Y. Here, we would like to maximize the number of different letters contained in both X and Y. Find the larges... | instruction | 0 | 33,185 | 0 | 66,370 |
"Correct Solution:
```
n=int(input())
s=input()
c=0
for i in range(1,n):
p=set(s[:i])
b=set(s[i:])
c=max(c,len(p&b))
print(c)
``` | output | 1 | 33,185 | 0 | 66,371 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a string S of length N consisting of lowercase English letters. We will cut this string at one position into two strings X and Y. Here, we would like to maximize the number of different letters contained in both X and Y. Find the larges... | instruction | 0 | 33,186 | 0 | 66,372 |
"Correct Solution:
```
#098_B
n=int(input())
s=input()
print(max([len(set(s[:i])&set(s[i:])) for i in range(1,n)]))
``` | output | 1 | 33,186 | 0 | 66,373 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a string S of length N consisting of lowercase English letters. We will cut this string at one position into two strings X and Y. Here, we would like to maximize the number of different letters contained in both X and Y. Find the larges... | instruction | 0 | 33,187 | 0 | 66,374 |
"Correct Solution:
```
N = int(input())
S = input()
print(max(len(set(S[:n])&set(S[n:])) for n in range(N)))
``` | output | 1 | 33,187 | 0 | 66,375 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a string S of length N consisting of lowercase English letters. We will cut this string at one position into two strings X and Y. Here, we would like to maximize the number of different letters contained in both X and Y. Find the larges... | instruction | 0 | 33,188 | 0 | 66,376 |
"Correct Solution:
```
n=int(input());s=input();print(max(len(set(s[:i])&set(s[i:]))for i in range(n)))
``` | output | 1 | 33,188 | 0 | 66,377 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a string S of length N consisting of lowercase English letters. We will cut this string at one position into two strings X and Y. Here, we would like to maximize the number of different letters contained in both X and Y. Find the larges... | instruction | 0 | 33,189 | 0 | 66,378 |
"Correct Solution:
```
_ = input()
S = input()
print(max([len(set(S[:i]) & set(S[i:])) for i in range(len(S))]))
``` | output | 1 | 33,189 | 0 | 66,379 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a string S of length N consisting of lowercase English letters. We will cut this string at one position into two strings X and Y. Here, we would like to maximize the number of different letters contained in both X and Y. Find the larges... | instruction | 0 | 33,190 | 0 | 66,380 |
"Correct Solution:
```
n = int(input())
s = list(input())
ans = 0
for i in range(1, n):
ans = max(ans, len(set(s[:i]) & set(s[i:])))
print(ans)
``` | output | 1 | 33,190 | 0 | 66,381 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a string and a number k. You are suggested to generate new strings by swapping any adjacent pair of characters in the string up to k times. Write a program to report the lexicographically smallest string among them.
Input
The input ... | instruction | 0 | 33,257 | 0 | 66,514 |
"Correct Solution:
```
import sys
def main():
NI = lambda : int(sys.stdin.readline())
SI = lambda : sys.stdin.readline().rstrip()
s = SI()
n = len(s)
k = NI()
def conv(x):
return ord(x) - ord('a')
bit = [0] * (n+1)
def bit_add(i):
while i <= n:
bit[i] += ... | output | 1 | 33,257 | 0 | 66,515 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a string and a number k. You are suggested to generate new strings by swapping any adjacent pair of characters in the string up to k times. Write a program to report the lexicographically smallest string among them.
Input
The input ... | instruction | 0 | 33,258 | 0 | 66,516 |
"Correct Solution:
```
from bisect import bisect_left as bl
def main():
s = list(map(ord, list(input())))
k = int(input())
used = []
used_index = []
pos_dict = {}
as_a = ord("a")
as_z = ord("z")
for i, v in enumerate(s):
if v in pos_dict:
pos_dict[v].append(i)
else:
pos_dict[v] = [i... | output | 1 | 33,258 | 0 | 66,517 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a string and a number k. You are suggested to generate new strings by swapping any adjacent pair of characters in the string up to k times. Write a program to report the lexicograp... | instruction | 0 | 33,259 | 0 | 66,518 |
No | output | 1 | 33,259 | 0 | 66,519 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a string and a number k. You are suggested to generate new strings by swapping any adjacent pair of characters in the string up to k times. Write a program to report the lexicograp... | instruction | 0 | 33,260 | 0 | 66,520 |
No | output | 1 | 33,260 | 0 | 66,521 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a string and a number k. You are suggested to generate new strings by swapping any adjacent pair of characters in the string up to k times. Write a program to report the lexicograp... | instruction | 0 | 33,261 | 0 | 66,522 |
No | output | 1 | 33,261 | 0 | 66,523 |
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