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 a correct Python 3 solution for this coding contest problem.
We have a string S of length N consisting of uppercase English letters.
How many times does `ABC` occur in S as contiguous subsequences (see Sample Inputs and Outputs)?
Constraints
* 3 \leq N \leq 50
* S consists of uppercase English letters.
Inp... | instruction | 0 | 24,516 | 0 | 49,032 |
"Correct Solution:
```
k = int(input())
s = input()
print(s.count('ABC'))
``` | output | 1 | 24,516 | 0 | 49,033 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Naman has two binary strings s and t of length n (a binary string is a string which only consists of the characters "0" and "1"). He wants to convert s into t using the following operation as few times as possible.
In one operation, he can ... | instruction | 0 | 24,936 | 0 | 49,872 |
Tags: binary search, constructive algorithms, data structures, greedy
Correct Solution:
```
n = int(input())
todo = [0 for i in range(n)]
a = input()
b = input()
for i in range(n):
if(a[i] == b[i]):
todo[i] = 0
elif (a[i] == '0' and b[i] == '1'):
todo[i] = 1
else:
todo[i] = -1
maxx1,... | output | 1 | 24,936 | 0 | 49,873 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Naman has two binary strings s and t of length n (a binary string is a string which only consists of the characters "0" and "1"). He wants to convert s into t using the following operation as few times as possible.
In one operation, he can ... | instruction | 0 | 24,937 | 0 | 49,874 |
Tags: binary search, constructive algorithms, data structures, greedy
Correct Solution:
```
def answer(n,s,t):
if s==t:
return 0
c1s=0
for i in s:
if i=="1":
c1s+=1
c1t=0
for i in t:
if i=="1":
c1t+=1
if c1s!=c1t:
return -1
ones=0
z... | output | 1 | 24,937 | 0 | 49,875 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Naman has two binary strings s and t of length n (a binary string is a string which only consists of the characters "0" and "1"). He wants to convert s into t using the following operation as few times as possible.
In one operation, he can ... | instruction | 0 | 24,938 | 0 | 49,876 |
Tags: binary search, constructive algorithms, data structures, greedy
Correct Solution:
```
# import os,io
# input = io.BytesIO(os.read(0,os.fstat(0).st_size)).readline
n = int(input())
s = input()
t = input()
s1 = 0
t1 = 0
if s==t:
print(0)
else:
for i in range(n):
if s[i]=='1':
s1+=1
... | output | 1 | 24,938 | 0 | 49,877 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Naman has two binary strings s and t of length n (a binary string is a string which only consists of the characters "0" and "1"). He wants to convert s into t using the following operation as few times as possible.
In one operation, he can ... | instruction | 0 | 24,939 | 0 | 49,878 |
Tags: binary search, constructive algorithms, data structures, greedy
Correct Solution:
```
import sys
import heapq
import random
import collections
# available on Google, not available on Codeforces
# import numpy as np
# import scipy
def maxSubArraySum(arr):
max_so_far = 0
max_ending_here = 0
... | output | 1 | 24,939 | 0 | 49,879 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Naman has two binary strings s and t of length n (a binary string is a string which only consists of the characters "0" and "1"). He wants to convert s into t using the following operation as few times as possible.
In one operation, he can ... | instruction | 0 | 24,940 | 0 | 49,880 |
Tags: binary search, constructive algorithms, data structures, greedy
Correct Solution:
```
from bisect import *
from collections import *
from math import *
from heapq import *
from typing import List
from itertools import *
from operator import *
from functools import *
@lru_cache(None)
def fact(x):
if x<2:
... | output | 1 | 24,940 | 0 | 49,881 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Naman has two binary strings s and t of length n (a binary string is a string which only consists of the characters "0" and "1"). He wants to convert s into t using the following operation as few times as possible.
In one operation, he can ... | instruction | 0 | 24,941 | 0 | 49,882 |
Tags: binary search, constructive algorithms, data structures, greedy
Correct Solution:
```
import math
import sys
n = int(input())
t1 = list(input())
t3 = list(input())
o=0
z=0
i=0
t2 = []
while i<len(t1):
if(t1[i]==t3[i]):
i+=1
else:
if(t1[i]=='1'):
o+=1
t2.append(t3[i... | output | 1 | 24,941 | 0 | 49,883 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Naman has two binary strings s and t of length n (a binary string is a string which only consists of the characters "0" and "1"). He wants to convert s into t using the following operation as few times as possible.
In one operation, he can ... | instruction | 0 | 24,942 | 0 | 49,884 |
Tags: binary search, constructive algorithms, data structures, greedy
Correct Solution:
```
from sys import stdin
input=lambda : stdin.readline().strip()
from math import ceil,sqrt,gcd
from collections import deque
n=int(input())
s=list(input())
t=list(input())
o=0
z=0
x=[]
for i in range(n):
if s[i]=='1':
o+=1
els... | output | 1 | 24,942 | 0 | 49,885 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Naman has two binary strings s and t of length n (a binary string is a string which only consists of the characters "0" and "1"). He wants to convert s into t using the following operation as few times as possible.
In one operation, he can ... | instruction | 0 | 24,943 | 0 | 49,886 |
Tags: binary search, constructive algorithms, data structures, greedy
Correct Solution:
```
m=int(input())
s=list(input())
t=list(input())
i=0
a=c=d=0
while(i<m):
if s[i]!=t[i]:
if s[i]=='0':
a+=1
else:
a-=1
c=min(c,a)
d=max(d,a)
i+=1
if a==0:
print(d-c)
else:
print(-1)
``` | output | 1 | 24,943 | 0 | 49,887 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Naman has two binary strings s and t of length n (a binary string is a string which only consists of the characters "0" and "1"). He wants to convert s into t using the following operation as fe... | instruction | 0 | 24,944 | 0 | 49,888 |
Yes | output | 1 | 24,944 | 0 | 49,889 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Naman has two binary strings s and t of length n (a binary string is a string which only consists of the characters "0" and "1"). He wants to convert s into t using the following operation as fe... | instruction | 0 | 24,945 | 0 | 49,890 |
Yes | output | 1 | 24,945 | 0 | 49,891 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Naman has two binary strings s and t of length n (a binary string is a string which only consists of the characters "0" and "1"). He wants to convert s into t using the following operation as fe... | instruction | 0 | 24,946 | 0 | 49,892 |
Yes | output | 1 | 24,946 | 0 | 49,893 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Naman has two binary strings s and t of length n (a binary string is a string which only consists of the characters "0" and "1"). He wants to convert s into t using the following operation as fe... | instruction | 0 | 24,947 | 0 | 49,894 |
Yes | output | 1 | 24,947 | 0 | 49,895 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Naman has two binary strings s and t of length n (a binary string is a string which only consists of the characters "0" and "1"). He wants to convert s into t using the following operation as fe... | instruction | 0 | 24,948 | 0 | 49,896 |
No | output | 1 | 24,948 | 0 | 49,897 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Naman has two binary strings s and t of length n (a binary string is a string which only consists of the characters "0" and "1"). He wants to convert s into t using the following operation as fe... | instruction | 0 | 24,949 | 0 | 49,898 |
No | output | 1 | 24,949 | 0 | 49,899 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Naman has two binary strings s and t of length n (a binary string is a string which only consists of the characters "0" and "1"). He wants to convert s into t using the following operation as fe... | instruction | 0 | 24,950 | 0 | 49,900 |
No | output | 1 | 24,950 | 0 | 49,901 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Naman has two binary strings s and t of length n (a binary string is a string which only consists of the characters "0" and "1"). He wants to convert s into t using the following operation as fe... | instruction | 0 | 24,951 | 0 | 49,902 |
No | output | 1 | 24,951 | 0 | 49,903 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Just in case somebody missed it: this winter is totally cold in Nvodsk! It is so cold that one gets funny thoughts. For example, let's say there are strings with the length exactly n, based on the alphabet of size m. Any its substring with l... | instruction | 0 | 25,000 | 0 | 50,000 |
Tags: combinatorics, dfs and similar, graphs, math
Correct Solution:
```
import sys
n,m,k=(int(x) for x in sys.stdin.readline().split())
ret=0
if (k==1)or(k>n):
ret=(m**n)%1000000007
elif k==n:
if n%2==1:
ret=(m**int((n+1)/2))%1000000007
else:
ret=(m**int(n/2))%1000000007
elif k<n:
if... | output | 1 | 25,000 | 0 | 50,001 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Just in case somebody missed it: this winter is totally cold in Nvodsk! It is so cold that one gets funny thoughts. For example, let's say there are strings with the length exactly n, based on the alphabet of size m. Any its substring with l... | instruction | 0 | 25,001 | 0 | 50,002 |
Tags: combinatorics, dfs and similar, graphs, math
Correct Solution:
```
n, m, k = map(int, input().split())
def check(l, r) :
while (l < r) :
if (s[l] != s[r]) :
return False
l += 1
r -= 1
return True
s = [0] * n
def rec(v) :
if (v == n) :
for i in range(n - k + 1) :
if (not check(i, i + k - 1)) :
... | output | 1 | 25,001 | 0 | 50,003 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Just in case somebody missed it: this winter is totally cold in Nvodsk! It is so cold that one gets funny thoughts. For example, let's say there are strings with the length exactly n, based on the alphabet of size m. Any its substring with l... | instruction | 0 | 25,002 | 0 | 50,004 |
Tags: combinatorics, dfs and similar, graphs, math
Correct Solution:
```
n, m, k = input().split()
n = int(n)
m = int(m)
k = int(k)
module = 1000000007
if k <= 0:
print(0)
elif k == 1 or k > n:
print((m ** n) % module)
elif k == n:
print((m ** int((n + 1) / 2)) % module)
elif k % 2 == 1:
print((m ** 2) ... | output | 1 | 25,002 | 0 | 50,005 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Just in case somebody missed it: this winter is totally cold in Nvodsk! It is so cold that one gets funny thoughts. For example, let's say there are strings with the length exactly n, based on the alphabet of size m. Any its substring with l... | instruction | 0 | 25,003 | 0 | 50,006 |
Tags: combinatorics, dfs and similar, graphs, math
Correct Solution:
```
n,m,k=map(int,input().split())
mod=10**9+7
if n<k:
print(pow(m,n,mod))
elif n==k:
x=n//2
if n%2==0:
print(pow(m,x,mod))
else:
print(pow(m,x+1,mod))
else:
if k==1:
print(pow(m,n,mod))
elif k%2==1:
ans=0
ans+=m
an... | output | 1 | 25,003 | 0 | 50,007 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Just in case somebody missed it: this winter is totally cold in Nvodsk! It is so cold that one gets funny thoughts. For example, let's say there are strings with the length exactly n, based on the alphabet of size m. Any its substring with l... | instruction | 0 | 25,004 | 0 | 50,008 |
Tags: combinatorics, dfs and similar, graphs, math
Correct Solution:
```
n,m,k = map(int, input().split())
mod = 1000000007
if k == 1 or k > n:
ans = pow(m, n, mod)
elif k == n:
ans = pow(m, (n + 1) // 2, mod)
elif k % 2 == 0:
ans = m
else:
ans = m * m
print(ans)
``` | output | 1 | 25,004 | 0 | 50,009 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Just in case somebody missed it: this winter is totally cold in Nvodsk! It is so cold that one gets funny thoughts. For example, let's say there are strings with the length exactly n, based on the alphabet of size m. Any its substring with l... | instruction | 0 | 25,005 | 0 | 50,010 |
Tags: combinatorics, dfs and similar, graphs, math
Correct Solution:
```
#!/usr/bin/python3
MOD = int(1e9 + 7)
N, m, k = [int(x) for x in input().split()]
def kelk(a, b):
ret = 1
while b:
if b % 2:
ret = (a*int(ret))%MOD
a = int(a*a)%MOD
a = int(a) % MOD
b //= 2
return int(ret) % MOD
if k > N or k == ... | output | 1 | 25,005 | 0 | 50,011 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Just in case somebody missed it: this winter is totally cold in Nvodsk! It is so cold that one gets funny thoughts. For example, let's say there are strings with the length exactly n, based on the alphabet of size m. Any its substring with l... | instruction | 0 | 25,006 | 0 | 50,012 |
Tags: combinatorics, dfs and similar, graphs, math
Correct Solution:
```
import sys,os,io
import math
if(os.path.exists('input.txt')):
sys.stdin = open("input.txt","r") ; sys.stdout = open("output.txt","w")
else:
input = io.BytesIO(os.read(0, os.fstat(0).st_size)).readline
mod = 1000000007
def power(x, y, p) ... | output | 1 | 25,006 | 0 | 50,013 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Just in case somebody missed it: this winter is totally cold in Nvodsk! It is so cold that one gets funny thoughts. For example, let's say there are strings with the length exactly n, based on the alphabet of size m. Any its substring with l... | instruction | 0 | 25,007 | 0 | 50,014 |
Tags: combinatorics, dfs and similar, graphs, math
Correct Solution:
```
mod = 1000000007
n,m,k = map(int,input().split())
if k==1 or n<k:
print(pow(m,n,mod))
elif k==n:
print(pow(m,(n+1)//2,mod))
elif k%2!=0:
print((m*m)%mod)
else:
print(m)
``` | output | 1 | 25,007 | 0 | 50,015 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Just in case somebody missed it: this winter is totally cold in Nvodsk! It is so cold that one gets funny thoughts. For example, let's say there are strings with the length exactly n, based on t... | instruction | 0 | 25,008 | 0 | 50,016 |
Yes | output | 1 | 25,008 | 0 | 50,017 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Just in case somebody missed it: this winter is totally cold in Nvodsk! It is so cold that one gets funny thoughts. For example, let's say there are strings with the length exactly n, based on t... | instruction | 0 | 25,009 | 0 | 50,018 |
Yes | output | 1 | 25,009 | 0 | 50,019 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Just in case somebody missed it: this winter is totally cold in Nvodsk! It is so cold that one gets funny thoughts. For example, let's say there are strings with the length exactly n, based on t... | instruction | 0 | 25,010 | 0 | 50,020 |
Yes | output | 1 | 25,010 | 0 | 50,021 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Just in case somebody missed it: this winter is totally cold in Nvodsk! It is so cold that one gets funny thoughts. For example, let's say there are strings with the length exactly n, based on t... | instruction | 0 | 25,011 | 0 | 50,022 |
Yes | output | 1 | 25,011 | 0 | 50,023 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Just in case somebody missed it: this winter is totally cold in Nvodsk! It is so cold that one gets funny thoughts. For example, let's say there are strings with the length exactly n, based on t... | instruction | 0 | 25,012 | 0 | 50,024 |
No | output | 1 | 25,012 | 0 | 50,025 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Just in case somebody missed it: this winter is totally cold in Nvodsk! It is so cold that one gets funny thoughts. For example, let's say there are strings with the length exactly n, based on t... | instruction | 0 | 25,013 | 0 | 50,026 |
No | output | 1 | 25,013 | 0 | 50,027 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Just in case somebody missed it: this winter is totally cold in Nvodsk! It is so cold that one gets funny thoughts. For example, let's say there are strings with the length exactly n, based on t... | instruction | 0 | 25,014 | 0 | 50,028 |
No | output | 1 | 25,014 | 0 | 50,029 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Just in case somebody missed it: this winter is totally cold in Nvodsk! It is so cold that one gets funny thoughts. For example, let's say there are strings with the length exactly n, based on t... | instruction | 0 | 25,015 | 0 | 50,030 |
No | output | 1 | 25,015 | 0 | 50,031 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Suppose you are given two strings a and b. You can apply the following operation any number of times: choose any contiguous substring of a or b, and sort the characters in it in non-descending o... | instruction | 0 | 25,016 | 0 | 50,032 |
No | output | 1 | 25,016 | 0 | 50,033 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Suppose you are given two strings a and b. You can apply the following operation any number of times: choose any contiguous substring of a or b, and sort the characters in it in non-descending o... | instruction | 0 | 25,017 | 0 | 50,034 |
No | output | 1 | 25,017 | 0 | 50,035 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Suppose you are given two strings a and b. You can apply the following operation any number of times: choose any contiguous substring of a or b, and sort the characters in it in non-descending o... | instruction | 0 | 25,018 | 0 | 50,036 |
No | output | 1 | 25,018 | 0 | 50,037 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Suppose you are given two strings a and b. You can apply the following operation any number of times: choose any contiguous substring of a or b, and sort the characters in it in non-descending o... | instruction | 0 | 25,019 | 0 | 50,038 |
No | output | 1 | 25,019 | 0 | 50,039 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Bear Limak prepares problems for a programming competition. Of course, it would be unprofessional to mention the sponsor name in the statement. Limak takes it seriously and he is going to change some words. To make it still possible to read,... | instruction | 0 | 25,256 | 0 | 50,512 |
Tags: dp
Correct Solution:
```
# http://codeforces.com/contest/771/problem/D
"""
DP-solution.
For each state (v, k, x, v_is_last_letter) we trial a step along the v, k and x
axes and check that
dp[future_state] = min(dp[future_state], dp[state] + cost_of_move)
Hence this implicitly reults in the one with least cost.
... | output | 1 | 25,256 | 0 | 50,513 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Given a string s, find the number of ways to split s to substrings such that if there are k substrings (p1, p2, p3, ..., pk) in partition, then pi = pk - i + 1 for all i (1 ≤ i ≤ k) and k is eve... | instruction | 0 | 25,298 | 0 | 50,596 |
No | output | 1 | 25,298 | 0 | 50,597 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Given a string s, find the number of ways to split s to substrings such that if there are k substrings (p1, p2, p3, ..., pk) in partition, then pi = pk - i + 1 for all i (1 ≤ i ≤ k) and k is eve... | instruction | 0 | 25,299 | 0 | 50,598 |
No | output | 1 | 25,299 | 0 | 50,599 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Given a string s, find the number of ways to split s to substrings such that if there are k substrings (p1, p2, p3, ..., pk) in partition, then pi = pk - i + 1 for all i (1 ≤ i ≤ k) and k is eve... | instruction | 0 | 25,300 | 0 | 50,600 |
No | output | 1 | 25,300 | 0 | 50,601 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Given a string s, find the number of ways to split s to substrings such that if there are k substrings (p1, p2, p3, ..., pk) in partition, then pi = pk - i + 1 for all i (1 ≤ i ≤ k) and k is eve... | instruction | 0 | 25,301 | 0 | 50,602 |
No | output | 1 | 25,301 | 0 | 50,603 |
Provide a correct Python 3 solution for this coding contest problem.
For a string S, let f(S) be the lexicographically smallest cyclic shift of S. For example, if S = `babca`, f(S) = `ababc` because this is the smallest among all cyclic shifts (`babca`, `abcab`, `bcaba`, `cabab`, `ababc`).
You are given three integer... | instruction | 0 | 25,433 | 0 | 50,866 |
"Correct Solution:
```
import math,string,itertools,fractions,heapq,collections,re,array,bisect,sys,random,time,copy,functools
sys.setrecursionlimit(10**7)
inf = 10**20
eps = 1.0 / 10**15
mod = 10**9+7
def LI(): return [int(x) for x in sys.stdin.readline().split()]
def LI_(): return [int(x)-1 for x in sys.stdin.readl... | output | 1 | 25,433 | 0 | 50,867 |
Provide a correct Python 3 solution for this coding contest problem.
For a string S, let f(S) be the lexicographically smallest cyclic shift of S. For example, if S = `babca`, f(S) = `ababc` because this is the smallest among all cyclic shifts (`babca`, `abcab`, `bcaba`, `cabab`, `ababc`).
You are given three integer... | instruction | 0 | 25,434 | 0 | 50,868 |
"Correct Solution:
```
a,b,c = map(int,input().split())
L = [[0] for _ in range(a)] + [[1] for _ in range(b)] + [[2] for _ in range(c)]
while len(L) > 1:
L[0] += L.pop()
L.sort()
print(''.join(('a','b','c')[i] for i in L[0]))
``` | output | 1 | 25,434 | 0 | 50,869 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
For a string S, let f(S) be the lexicographically smallest cyclic shift of S. For example, if S = `babca`, f(S) = `ababc` because this is the smallest among all cyclic shifts (`babca`, `abcab`, ... | instruction | 0 | 25,435 | 0 | 50,870 |
No | output | 1 | 25,435 | 0 | 50,871 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
For a string S, let f(S) be the lexicographically smallest cyclic shift of S. For example, if S = `babca`, f(S) = `ababc` because this is the smallest among all cyclic shifts (`babca`, `abcab`, ... | instruction | 0 | 25,436 | 0 | 50,872 |
No | output | 1 | 25,436 | 0 | 50,873 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
For a string S, let f(S) be the lexicographically smallest cyclic shift of S. For example, if S = `babca`, f(S) = `ababc` because this is the smallest among all cyclic shifts (`babca`, `abcab`, ... | instruction | 0 | 25,437 | 0 | 50,874 |
No | output | 1 | 25,437 | 0 | 50,875 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
For a string S, let f(S) be the lexicographically smallest cyclic shift of S. For example, if S = `babca`, f(S) = `ababc` because this is the smallest among all cyclic shifts (`babca`, `abcab`, ... | instruction | 0 | 25,438 | 0 | 50,876 |
No | output | 1 | 25,438 | 0 | 50,877 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a set of strings S. Each string consists of lowercase Latin letters.
For each string in this set, you want to calculate the minimum number of seconds required to type this string. To type a string, you have to start with an em... | instruction | 0 | 25,723 | 0 | 51,446 |
Tags: data structures, dfs and similar, dp
Correct Solution:
```
import io
import os
DEBUG = False
def dfs(trie, root, preorder=None, postorder=None):
stack = [root]
seen = set()
while stack:
nodeId = stack.pop()
if nodeId not in seen:
if preorder:
preorder(nod... | output | 1 | 25,723 | 0 | 51,447 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a set of strings S. Each string consists of lowercase Latin letters.
For each string in this set, you want to calculate the minimum number of seconds required to type this string. To type a string, you have to start with an em... | instruction | 0 | 25,724 | 0 | 51,448 |
Tags: data structures, dfs and similar, dp
Correct Solution:
```
import sys
input = sys.stdin.readline
n=int(input())
T=[input().split() for i in range(n)]
k=int(input())
S=list(map(int,input().split()))
SETS=set(S)
E=[[] for i in range(n+1)]
P=[-1]*(n+1)
for i in range(n):
p,s=T[i]
p=int(p)
E[p].append(... | output | 1 | 25,724 | 0 | 51,449 |
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