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.
Jenya has recently acquired quite a useful tool — k-scissors for cutting strings. They are generally used for cutting out two non-intersecting substrings of length k from an arbitrary string s (... | instruction | 0 | 1,422 | 0 | 2,844 |
No | output | 1 | 1,422 | 0 | 2,845 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Jenya has recently acquired quite a useful tool — k-scissors for cutting strings. They are generally used for cutting out two non-intersecting substrings of length k from an arbitrary string s (... | instruction | 0 | 1,423 | 0 | 2,846 |
No | output | 1 | 1,423 | 0 | 2,847 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a string S of length N consisting of `A`, `C`, `G` and `T`. Answer the following Q queries:
* Query i (1 \leq i \leq Q): You will be given integers l_i and r_i (1 \leq l_i < r_i \leq N). Consider the substring of S starting at index l_... | instruction | 0 | 1,492 | 0 | 2,984 |
"Correct Solution:
```
n, q = map(int, input().split())
s = input()
a = [0, 0]
for i in range(2, n + 1):
a.append(a[i - 1] + (s[i - 2:i] == 'AC'))
for _ in range(q):
li, ri = map(int, input().split())
print(a[ri] - a[li])
``` | output | 1 | 1,492 | 0 | 2,985 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a string S of length N consisting of `A`, `C`, `G` and `T`. Answer the following Q queries:
* Query i (1 \leq i \leq Q): You will be given integers l_i and r_i (1 \leq l_i < r_i \leq N). Consider the substring of S starting at index l_... | instruction | 0 | 1,493 | 0 | 2,986 |
"Correct Solution:
```
n,q = map(int,input().split())
s = input()
t = [0] * (n+1)
for i in range(n):
t[i+1] = t[i] + (1 if s[i:i+2] == 'AC' else 0)
#print (t)
for _ in range(q):
l,r = map(int,input().split())
print (t[r-1]-t[l-1])
``` | output | 1 | 1,493 | 0 | 2,987 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a string S of length N consisting of `A`, `C`, `G` and `T`. Answer the following Q queries:
* Query i (1 \leq i \leq Q): You will be given integers l_i and r_i (1 \leq l_i < r_i \leq N). Consider the substring of S starting at index l_... | instruction | 0 | 1,494 | 0 | 2,988 |
"Correct Solution:
```
n,q=map(int,input().split())
s=input()
a = [0] * n
num = 0
for i in range(1, n):
if s[i]=='C' and s[i-1]=='A':
num += 1
a[i] = num
for _ in range(q):
l,r=map(int,input().split())
print(a[r-1] - a[l-1])
``` | output | 1 | 1,494 | 0 | 2,989 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a string S of length N consisting of `A`, `C`, `G` and `T`. Answer the following Q queries:
* Query i (1 \leq i \leq Q): You will be given integers l_i and r_i (1 \leq l_i < r_i \leq N). Consider the substring of S starting at index l_... | instruction | 0 | 1,495 | 0 | 2,990 |
"Correct Solution:
```
n, q = (int(x) for x in input().split())
s = input()
t = [0]*(n+1)
for i in range(n):
t[i+1] = t[i] + (1 if s[i : i + 2] == 'AC' else 0)
for i in range(q):
l,r = (int(x) for x in input().split())
print(t[r-1]-t[l-1])
``` | output | 1 | 1,495 | 0 | 2,991 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a string S of length N consisting of `A`, `C`, `G` and `T`. Answer the following Q queries:
* Query i (1 \leq i \leq Q): You will be given integers l_i and r_i (1 \leq l_i < r_i \leq N). Consider the substring of S starting at index l_... | instruction | 0 | 1,496 | 0 | 2,992 |
"Correct Solution:
```
n, q = map(int, input().split())
s=input()
d=[0]*n
c=0
for i in range(n-1):
if s[i:i+2]=="AC":
c+=1
d[i+1]=c
for i in range(q):
l,r= map(int, input().split())
print(d[r-1]-d[l-1])
``` | output | 1 | 1,496 | 0 | 2,993 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a string S of length N consisting of `A`, `C`, `G` and `T`. Answer the following Q queries:
* Query i (1 \leq i \leq Q): You will be given integers l_i and r_i (1 \leq l_i < r_i \leq N). Consider the substring of S starting at index l_... | instruction | 0 | 1,497 | 0 | 2,994 |
"Correct Solution:
```
n, q = map(int, input().split())
s = input()
a = [list(map(int, input().split())) for i in range(q)]
c = [0] * n
for i in range(1,n):
c[i] = c[i-1] + (s[i-1]+s[i] == 'AC')
for x in a:
print(c[x[1]-1]-c[x[0]-1])
``` | output | 1 | 1,497 | 0 | 2,995 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a string S of length N consisting of `A`, `C`, `G` and `T`. Answer the following Q queries:
* Query i (1 \leq i \leq Q): You will be given integers l_i and r_i (1 \leq l_i < r_i \leq N). Consider the substring of S starting at index l_... | instruction | 0 | 1,498 | 0 | 2,996 |
"Correct Solution:
```
n,q=map(int,input().split())
s=input()
l=[list(map(int,input().split())) for i in range(q)]
L=[0];ct=0
for i in range(n-1):
if s[i:i+2]=='AC':
ct+=1
L.append(ct)
for j in range(q):
print(L[l[j][1]-1]-L[l[j][0]-1])
``` | output | 1 | 1,498 | 0 | 2,997 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a string S of length N consisting of `A`, `C`, `G` and `T`. Answer the following Q queries:
* Query i (1 \leq i \leq Q): You will be given integers l_i and r_i (1 \leq l_i < r_i \leq N). Consider the substring of S starting at index l_... | instruction | 0 | 1,499 | 0 | 2,998 |
"Correct Solution:
```
n, q = map(int, input().split())
S = input()
t = [0] * (n + 1)
for i in range(n):
t[i + 1] = t[i] + (1 if S[i : i+2] == "AC" else 0)
for i in range(q):
l, r = map(int, input().split())
print(t[r-1] - t[l-1])
``` | output | 1 | 1,499 | 0 | 2,999 |
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 S of length N consisting of `A`, `C`, `G` and `T`. Answer the following Q queries:
* Query i (1 \leq i \leq Q): You will be given integers l_i and r_i (1 \leq l_i < r_i \... | instruction | 0 | 1,500 | 0 | 3,000 |
Yes | output | 1 | 1,500 | 0 | 3,001 |
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 S of length N consisting of `A`, `C`, `G` and `T`. Answer the following Q queries:
* Query i (1 \leq i \leq Q): You will be given integers l_i and r_i (1 \leq l_i < r_i \... | instruction | 0 | 1,501 | 0 | 3,002 |
Yes | output | 1 | 1,501 | 0 | 3,003 |
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 S of length N consisting of `A`, `C`, `G` and `T`. Answer the following Q queries:
* Query i (1 \leq i \leq Q): You will be given integers l_i and r_i (1 \leq l_i < r_i \... | instruction | 0 | 1,502 | 0 | 3,004 |
Yes | output | 1 | 1,502 | 0 | 3,005 |
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 S of length N consisting of `A`, `C`, `G` and `T`. Answer the following Q queries:
* Query i (1 \leq i \leq Q): You will be given integers l_i and r_i (1 \leq l_i < r_i \... | instruction | 0 | 1,503 | 0 | 3,006 |
Yes | output | 1 | 1,503 | 0 | 3,007 |
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 S of length N consisting of `A`, `C`, `G` and `T`. Answer the following Q queries:
* Query i (1 \leq i \leq Q): You will be given integers l_i and r_i (1 \leq l_i < r_i \... | instruction | 0 | 1,504 | 0 | 3,008 |
No | output | 1 | 1,504 | 0 | 3,009 |
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 S of length N consisting of `A`, `C`, `G` and `T`. Answer the following Q queries:
* Query i (1 \leq i \leq Q): You will be given integers l_i and r_i (1 \leq l_i < r_i \... | instruction | 0 | 1,506 | 0 | 3,012 |
No | output | 1 | 1,506 | 0 | 3,013 |
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 S of length N consisting of `A`, `C`, `G` and `T`. Answer the following Q queries:
* Query i (1 \leq i \leq Q): You will be given integers l_i and r_i (1 \leq l_i < r_i \... | instruction | 0 | 1,507 | 0 | 3,014 |
No | output | 1 | 1,507 | 0 | 3,015 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a string s consisting of the characters '0', '1', and '?'. You need to replace all the characters with '?' in the string s by '0' or '1' so that the string becomes a palindrome and has exactly a characters '0' and exactly b cha... | instruction | 0 | 1,885 | 0 | 3,770 |
Tags: constructive algorithms, implementation, strings
Correct Solution:
```
for _ in range(int(input())):
a,b = map(int,input().split())
s = input()
n = len(s)
if a+b != n or (a%2==1 and b%2==1):
print("-1")
else:
x = y = z = 0
f = 0
l1 = ["0"]*(n//2)
l2 = ["... | output | 1 | 1,885 | 0 | 3,771 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a string s consisting of the characters '0', '1', and '?'. You need to replace all the characters with '?' in the string s by '0' or '1' so that the string becomes a palindrome and has exactly a characters '0' and exactly b cha... | instruction | 0 | 1,886 | 0 | 3,772 |
Tags: constructive algorithms, implementation, strings
Correct Solution:
```
# coding: utf-8
for ct in range(int(input())):
a, b = map(int, input().split())
n = a + b
s = list(input())
for i in range(n):
if s[i] == '?':
s[i] = s[n - i - 1]
a -= s.count('0')
b -= s.count('1')
for i ... | output | 1 | 1,886 | 0 | 3,773 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a string s consisting of the characters '0', '1', and '?'. You need to replace all the characters with '?' in the string s by '0' or '1' so that the string becomes a palindrome and has exactly a characters '0' and exactly b cha... | instruction | 0 | 1,887 | 0 | 3,774 |
Tags: constructive algorithms, implementation, strings
Correct Solution:
```
def abpal():
a, b = map(int, input().split())
s = input()
n = len(s)
if a + b != n:
return -1
if a%2 != 0 and b%2 != 0:
return -1
if n == 1:
if a == 1 and s == '0':
return s
i... | output | 1 | 1,887 | 0 | 3,775 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a string s consisting of the characters '0', '1', and '?'. You need to replace all the characters with '?' in the string s by '0' or '1' so that the string becomes a palindrome and has exactly a characters '0' and exactly b cha... | instruction | 0 | 1,888 | 0 | 3,776 |
Tags: constructive algorithms, implementation, strings
Correct Solution:
```
'''9
4 4
01?????0
3 3
??????
1 0
?
2 2
0101
2 2
01?0
0 1
0
0 3
1?1
2 2
?00?
4 3
??010?0
'''
def f(zeros, ones, s):
existing_ones = s.count('1')
existing_zeros = s.count('0')
needed_zeros = zeros - existing_zeros
needed_ones ... | output | 1 | 1,888 | 0 | 3,777 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a string s consisting of the characters '0', '1', and '?'. You need to replace all the characters with '?' in the string s by '0' or '1' so that the string becomes a palindrome and has exactly a characters '0' and exactly b cha... | instruction | 0 | 1,889 | 0 | 3,778 |
Tags: constructive algorithms, implementation, strings
Correct Solution:
```
def main():
t=int(input())
allans=[]
for _ in range(t):
a,b=readIntArr()
n=a+b
arr=list(input())
possible=True
l=0
r=n-1
while l<=r:
if l==r:
... | output | 1 | 1,889 | 0 | 3,779 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a string s consisting of the characters '0', '1', and '?'. You need to replace all the characters with '?' in the string s by '0' or '1' so that the string becomes a palindrome and has exactly a characters '0' and exactly b cha... | instruction | 0 | 1,890 | 0 | 3,780 |
Tags: constructive algorithms, implementation, strings
Correct Solution:
```
t = int(input())
while t:
t -= 1
a0,b1 = map(int, input().split())
a = list(input())
n = len(a)
l = 0
r = n-1
cnt0 = 0
cnt1 = 0
flag = False
while l <= r:
if l == r:
if a[l] == '0':
... | output | 1 | 1,890 | 0 | 3,781 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a string s consisting of the characters '0', '1', and '?'. You need to replace all the characters with '?' in the string s by '0' or '1' so that the string becomes a palindrome and has exactly a characters '0' and exactly b cha... | instruction | 0 | 1,891 | 0 | 3,782 |
Tags: constructive algorithms, implementation, strings
Correct Solution:
```
for i in range(int(input())):
a, b = map(int, input().split())
arr = list(input())
n = a+b
mid = n%2 and arr[n//2] == '?'
repeats = []
a_ = 0
b_ = 0
if n%2:
if arr[n//2] == '0':
a_ += 1
... | output | 1 | 1,891 | 0 | 3,783 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a string s consisting of the characters '0', '1', and '?'. You need to replace all the characters with '?' in the string s by '0' or '1' so that the string becomes a palindrome and has exactly a characters '0' and exactly b cha... | instruction | 0 | 1,892 | 0 | 3,784 |
Tags: constructive algorithms, implementation, strings
Correct Solution:
```
import math
rr = input
rri = lambda: int(rr())
rrm = lambda: list(map(int, rr().split()))
T = rri()
def split(word):
return [char for char in word]
def solve():
a, b = rrm()
s = split(input())
if a % 2 == 1 and b % 2 == 1:
... | output | 1 | 1,892 | 0 | 3,785 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a string s consisting of the characters '0', '1', and '?'. You need to replace all the characters with '?' in the string s by '0' or '1' so that the string becomes a palindrome and... | instruction | 0 | 1,893 | 0 | 3,786 |
Yes | output | 1 | 1,893 | 0 | 3,787 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a string s consisting of the characters '0', '1', and '?'. You need to replace all the characters with '?' in the string s by '0' or '1' so that the string becomes a palindrome and... | instruction | 0 | 1,894 | 0 | 3,788 |
Yes | output | 1 | 1,894 | 0 | 3,789 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a string s consisting of the characters '0', '1', and '?'. You need to replace all the characters with '?' in the string s by '0' or '1' so that the string becomes a palindrome and... | instruction | 0 | 1,895 | 0 | 3,790 |
Yes | output | 1 | 1,895 | 0 | 3,791 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a string s consisting of the characters '0', '1', and '?'. You need to replace all the characters with '?' in the string s by '0' or '1' so that the string becomes a palindrome and... | instruction | 0 | 1,896 | 0 | 3,792 |
Yes | output | 1 | 1,896 | 0 | 3,793 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a string s consisting of the characters '0', '1', and '?'. You need to replace all the characters with '?' in the string s by '0' or '1' so that the string becomes a palindrome and... | instruction | 0 | 1,897 | 0 | 3,794 |
No | output | 1 | 1,897 | 0 | 3,795 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a string s consisting of the characters '0', '1', and '?'. You need to replace all the characters with '?' in the string s by '0' or '1' so that the string becomes a palindrome and... | instruction | 0 | 1,898 | 0 | 3,796 |
No | output | 1 | 1,898 | 0 | 3,797 |
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 s consisting of the characters '0', '1', and '?'. You need to replace all the characters with '?' in the string s by '0' or '1' so that the string becomes a palindrome and... | instruction | 0 | 1,899 | 0 | 3,798 |
No | output | 1 | 1,899 | 0 | 3,799 |
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 s consisting of the characters '0', '1', and '?'. You need to replace all the characters with '?' in the string s by '0' or '1' so that the string becomes a palindrome and... | instruction | 0 | 1,900 | 0 | 3,800 |
No | output | 1 | 1,900 | 0 | 3,801 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Vitaly is a diligent student who never missed a lesson in his five years of studying in the university. He always does his homework on time and passes his exams in time.
During the last lesson the teacher has provided two strings s and t t... | instruction | 0 | 2,005 | 0 | 4,010 |
Tags: constructive algorithms, strings
Correct Solution:
```
s, t = input(), input()
for i in range(len(s)):
if s[i] == 'z':
continue
c = chr(ord(s[i]) + 1)
str = s[0:i] + c + ('a' * (len(s) - i - 1));
if (str < t) :
print(str)
exit();
print("No such string")
``` | output | 1 | 2,005 | 0 | 4,011 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Vitaly is a diligent student who never missed a lesson in his five years of studying in the university. He always does his homework on time and passes his exams in time.
During the last lesson the teacher has provided two strings s and t t... | instruction | 0 | 2,006 | 0 | 4,012 |
Tags: constructive algorithms, strings
Correct Solution:
```
# In case of length of s and t equal 1
# Calculate difference between s and t
# If difference is larger than 1
# Print next alphabet character in ASCII table
# Else
# Print 'No such string'
# Else
# Create a new string which is a clone of s
# ... | output | 1 | 2,006 | 0 | 4,013 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Vitaly is a diligent student who never missed a lesson in his five years of studying in the university. He always does his homework on time and passes his exams in time.
During the last lesson the teacher has provided two strings s and t t... | instruction | 0 | 2,007 | 0 | 4,014 |
Tags: constructive algorithms, strings
Correct Solution:
```
s = input()
t = input()
s = [i for i in s]
t = [i for i in t]
i = len(s)-1
while(i>=0):
if(s[i]=='z'):
s[i] = 'a'
else:
a = ord(s[i])+1
s[i] = chr(a)
break
i -= 1
s = ''.join(s)
t = ''.join(t)
if(s>=t):
print('N... | output | 1 | 2,007 | 0 | 4,015 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Vitaly is a diligent student who never missed a lesson in his five years of studying in the university. He always does his homework on time and passes his exams in time.
During the last lesson the teacher has provided two strings s and t t... | instruction | 0 | 2,008 | 0 | 4,016 |
Tags: constructive algorithms, strings
Correct Solution:
```
# http://codeforces.com/problemset/problem/169/A
# A. Chores
def read_input():
a = input()
b = input()
return (a, b)
def do_middle_string(a, b):
c = list(a)
for i in range(len(c) - 1, -1, -1):
# print(i)
if c[i] == 'z':... | output | 1 | 2,008 | 0 | 4,017 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Vitaly is a diligent student who never missed a lesson in his five years of studying in the university. He always does his homework on time and passes his exams in time.
During the last lesson the teacher has provided two strings s and t t... | instruction | 0 | 2,009 | 0 | 4,018 |
Tags: constructive algorithms, strings
Correct Solution:
```
s = input()
t = input()
index = len(s)-1
y = ord("z")
while index >= 0:
x = ord(s[index])
if x < y:
s = s[0:index]+chr(x+1)+"a"*(len(t)-index-1)
break
index -=1
if s == t:
print("No such string")
else:
print(s)
``` | output | 1 | 2,009 | 0 | 4,019 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Vitaly is a diligent student who never missed a lesson in his five years of studying in the university. He always does his homework on time and passes his exams in time.
During the last lesson the teacher has provided two strings s and t t... | instruction | 0 | 2,010 | 0 | 4,020 |
Tags: constructive algorithms, strings
Correct Solution:
```
s = input()
t = input()
k = 1
stri = ""
for i in s[::-1]:
m= ord(i) + k
if m> 122:
k = 1
stri += "a"
else:
k= 0
stri += chr(m)
if stri[::-1] == t:
print("No such string")
else:
print(stri[::-1])
``` | output | 1 | 2,010 | 0 | 4,021 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Vitaly is a diligent student who never missed a lesson in his five years of studying in the university. He always does his homework on time and passes his exams in time.
During the last lesson the teacher has provided two strings s and t t... | instruction | 0 | 2,011 | 0 | 4,022 |
Tags: constructive algorithms, strings
Correct Solution:
```
s = list(input())
t = list(input())
for i in range(len(s) - 1, -1, -1):
if s[i] == 'z':
s[i] = 'a'
else:
s[i] = chr(ord(s[i]) + 1)
break
print(''.join(s) if s < t else "No such string")
``` | output | 1 | 2,011 | 0 | 4,023 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Vitaly is a diligent student who never missed a lesson in his five years of studying in the university. He always does his homework on time and passes his exams in time.
During the last lesson the teacher has provided two strings s and t t... | instruction | 0 | 2,012 | 0 | 4,024 |
Tags: constructive algorithms, strings
Correct Solution:
```
s = input().strip()
t = input().strip()
r = list(s)
for i in range(len(s)-1, -1, -1):
if s[i] == 'z':
r[i] = 'a'
else:
r[i] = chr(ord(s[i]) + 1)
break
r = ''.join(r)
if t == r:
print("No such string")
else:
print(r)
``` | output | 1 | 2,012 | 0 | 4,025 |
Provide tags and a correct Python 2 solution for this coding contest problem.
Vitaly is a diligent student who never missed a lesson in his five years of studying in the university. He always does his homework on time and passes his exams in time.
During the last lesson the teacher has provided two strings s and t t... | instruction | 0 | 2,013 | 0 | 4,026 |
Tags: constructive algorithms, strings
Correct Solution:
```
from __future__ import print_function
# python 3 default
def main():
s = list(raw_input())
t = list(raw_input())
# map to ascii code
s_num = map(ord, s)
t_num = map(ord, t)
s_plus1 = list(s_num)
# z = 122
for i in range(len(s... | output | 1 | 2,013 | 0 | 4,027 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Vitaly is a diligent student who never missed a lesson in his five years of studying in the university. He always does his homework on time and passes his exams in time.
During the last lesson... | instruction | 0 | 2,017 | 0 | 4,034 |
Yes | output | 1 | 2,017 | 0 | 4,035 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Vitaly is a diligent student who never missed a lesson in his five years of studying in the university. He always does his homework on time and passes his exams in time.
During the last lesson... | instruction | 0 | 2,018 | 0 | 4,036 |
No | output | 1 | 2,018 | 0 | 4,037 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Vitaly is a diligent student who never missed a lesson in his five years of studying in the university. He always does his homework on time and passes his exams in time.
During the last lesson... | instruction | 0 | 2,021 | 0 | 4,042 |
No | output | 1 | 2,021 | 0 | 4,043 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a string q. A sequence of k strings s1, s2, ..., sk is called beautiful, if the concatenation of these strings is string q (formally, s1 + s2 + ... + sk = q) and the first characters of these strings are distinct.
Find any bea... | instruction | 0 | 2,022 | 0 | 4,044 |
Tags: implementation, strings
Correct Solution:
```
n = int(input())
t = input()
if n > len(set(t)):
print('NO')
else:
pos = [0 for _ in range(len(t)+1)]
dis = set()
c = 0
for i in range(len(t)):
if t[i] not in dis:
dis.add(t[i])
pos[c] = i
c = c+1
pos... | output | 1 | 2,022 | 0 | 4,045 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a string q. A sequence of k strings s1, s2, ..., sk is called beautiful, if the concatenation of these strings is string q (formally, s1 + s2 + ... + sk = q) and the first characters of these strings are distinct.
Find any bea... | instruction | 0 | 2,023 | 0 | 4,046 |
Tags: implementation, strings
Correct Solution:
```
import sys
k = int(input())
q = input()
if len(set(q)) < k:
print('NO')
else:
first = ''
s = ''
print('YES')
for i in range(len(q)):
if q[i] not in first:
if len(s) > 0:
print(s)
s =''
... | output | 1 | 2,023 | 0 | 4,047 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a string q. A sequence of k strings s1, s2, ..., sk is called beautiful, if the concatenation of these strings is string q (formally, s1 + s2 + ... + sk = q) and the first characters of these strings are distinct.
Find any bea... | instruction | 0 | 2,024 | 0 | 4,048 |
Tags: implementation, strings
Correct Solution:
```
k = int(input())
q = input()
b = []
for x in range(len(q)):
if q[0: x + 1].count(q[x]) == 1:
b.append(q[x])
else:
b[-1] += q[x]
if len(b) >= k:
print("YES")
for x in range(k-1):
print(b[x])
for y in range(k, len(b)):
b[k-1] += b[y]
print(b[... | output | 1 | 2,024 | 0 | 4,049 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a string q. A sequence of k strings s1, s2, ..., sk is called beautiful, if the concatenation of these strings is string q (formally, s1 + s2 + ... + sk = q) and the first characters of these strings are distinct.
Find any bea... | instruction | 0 | 2,025 | 0 | 4,050 |
Tags: implementation, strings
Correct Solution:
```
n = int(input())
s = list(str(input()))
dif = list(dict.fromkeys(s))
ans = []
if(n==1):
print('YES')
print(''.join(s))
else:
cur = 0
pnt = 0
lst = s[0]
cnt = 1
used = [s[0]]
for i in range(len(s)):
if(s[i] not in used):
... | output | 1 | 2,025 | 0 | 4,051 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a string q. A sequence of k strings s1, s2, ..., sk is called beautiful, if the concatenation of these strings is string q (formally, s1 + s2 + ... + sk = q) and the first characters of these strings are distinct.
Find any bea... | instruction | 0 | 2,026 | 0 | 4,052 |
Tags: implementation, strings
Correct Solution:
```
n = int(input())
s = input()
arr = []
for i in range(len(s)):
if s[i] not in s[:i]:
arr.append(i)
if (len(arr) < n):
print('NO')
exit()
print('YES')
for i in range(n - 1):
print(s[arr[i] : arr[i + 1]])
if len(arr) >= n:
print(s[arr[n - 1] :... | output | 1 | 2,026 | 0 | 4,053 |
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