message stringlengths 2 22.7k | message_type stringclasses 2
values | message_id int64 0 1 | conversation_id int64 145 109k | cluster float64 9 9 | __index_level_0__ int64 290 217k |
|---|---|---|---|---|---|
Provide tags and a correct Python 3 solution for this coding contest problem.
After a hard day Vitaly got very hungry and he wants to eat his favorite potato pie. But it's not that simple. Vitaly is in the first room of the house with n room located in a line and numbered starting from one from left to right. You can ... | instruction | 0 | 105,659 | 9 | 211,318 |
Tags: greedy, hashing, strings
Correct Solution:
```
n = int(input())
s = input()
need = 0
keys = {c: 0 for c in 'abcdefghijklmnopqrstuvwxyz'}
for c in s:
if c.islower():
keys[c] += 1
else:
c = c.lower()
if keys[c]:
keys[c] -= 1
else:
need += 1
print(nee... | output | 1 | 105,659 | 9 | 211,319 |
Provide tags and a correct Python 3 solution for this coding contest problem.
After a hard day Vitaly got very hungry and he wants to eat his favorite potato pie. But it's not that simple. Vitaly is in the first room of the house with n room located in a line and numbered starting from one from left to right. You can ... | instruction | 0 | 105,660 | 9 | 211,320 |
Tags: greedy, hashing, strings
Correct Solution:
```
# coding=utf-8
if __name__ == '__main__':
n = int(input())
line = str(input())
cook = {'a': 0, 'b': 0, 'c': 0, 'd': 0, 'e': 0, 'f': 0, 'g': 0, 'h': 0, 'i': 0, 'j': 0, 'k': 0, 'l': 0, 'm': 0,
'n': 0, 'o': 0, 'p': 0, 'q': 0, 'r': 0, 's': 0, 't': 0, 'u': 0, 'v': ... | output | 1 | 105,660 | 9 | 211,321 |
Provide tags and a correct Python 3 solution for this coding contest problem.
After a hard day Vitaly got very hungry and he wants to eat his favorite potato pie. But it's not that simple. Vitaly is in the first room of the house with n room located in a line and numbered starting from one from left to right. You can ... | instruction | 0 | 105,661 | 9 | 211,322 |
Tags: greedy, hashing, strings
Correct Solution:
```
from collections import Counter
n = int(input())
s = input()
keys = Counter()
buy = 0
for i in range(0, 2*n-2, 2):
keys[s[i]] += 1
room = s[i+1].lower()
if room not in keys or not keys[room]:
buy += 1
else:
keys[room] -= 1
print(buy)
... | output | 1 | 105,661 | 9 | 211,323 |
Provide tags and a correct Python 3 solution for this coding contest problem.
After a hard day Vitaly got very hungry and he wants to eat his favorite potato pie. But it's not that simple. Vitaly is in the first room of the house with n room located in a line and numbered starting from one from left to right. You can ... | instruction | 0 | 105,662 | 9 | 211,324 |
Tags: greedy, hashing, strings
Correct Solution:
```
from collections import defaultdict
n = int(input())
inp = input()
keys = defaultdict(lambda: 0)
res = 0
for i in range(0, 2*(n-1), 2):
keys[inp[i]] += 1
if keys[inp[i+1].lower()] > 0:
keys[inp[i+1].lower()] -= 1
else:
res += 1
print(res)
``` | output | 1 | 105,662 | 9 | 211,325 |
Provide tags and a correct Python 3 solution for this coding contest problem.
After a hard day Vitaly got very hungry and he wants to eat his favorite potato pie. But it's not that simple. Vitaly is in the first room of the house with n room located in a line and numbered starting from one from left to right. You can ... | instruction | 0 | 105,663 | 9 | 211,326 |
Tags: greedy, hashing, strings
Correct Solution:
```
# bsdk idhar kya dekhne ko aaya hai, khud kr!!!
# import math
# from itertools import *
# import random
# import calendar
import datetime
# import webbrowser
n = int(input())
string = input()
keys = [0]*26
count = 0
for i in range(0, len(string), 2):
if string[i... | output | 1 | 105,663 | 9 | 211,327 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
After a hard day Vitaly got very hungry and he wants to eat his favorite potato pie. But it's not that simple. Vitaly is in the first room of the house with n room located in a line and numbered... | instruction | 0 | 105,664 | 9 | 211,328 |
Yes | output | 1 | 105,664 | 9 | 211,329 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
After a hard day Vitaly got very hungry and he wants to eat his favorite potato pie. But it's not that simple. Vitaly is in the first room of the house with n room located in a line and numbered... | instruction | 0 | 105,665 | 9 | 211,330 |
Yes | output | 1 | 105,665 | 9 | 211,331 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
After a hard day Vitaly got very hungry and he wants to eat his favorite potato pie. But it's not that simple. Vitaly is in the first room of the house with n room located in a line and numbered... | instruction | 0 | 105,666 | 9 | 211,332 |
Yes | output | 1 | 105,666 | 9 | 211,333 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
After a hard day Vitaly got very hungry and he wants to eat his favorite potato pie. But it's not that simple. Vitaly is in the first room of the house with n room located in a line and numbered... | instruction | 0 | 105,667 | 9 | 211,334 |
Yes | output | 1 | 105,667 | 9 | 211,335 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
After a hard day Vitaly got very hungry and he wants to eat his favorite potato pie. But it's not that simple. Vitaly is in the first room of the house with n room located in a line and numbered... | instruction | 0 | 105,668 | 9 | 211,336 |
No | output | 1 | 105,668 | 9 | 211,337 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
After a hard day Vitaly got very hungry and he wants to eat his favorite potato pie. But it's not that simple. Vitaly is in the first room of the house with n room located in a line and numbered... | instruction | 0 | 105,669 | 9 | 211,338 |
No | output | 1 | 105,669 | 9 | 211,339 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
After a hard day Vitaly got very hungry and he wants to eat his favorite potato pie. But it's not that simple. Vitaly is in the first room of the house with n room located in a line and numbered... | instruction | 0 | 105,670 | 9 | 211,340 |
No | output | 1 | 105,670 | 9 | 211,341 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
After a hard day Vitaly got very hungry and he wants to eat his favorite potato pie. But it's not that simple. Vitaly is in the first room of the house with n room located in a line and numbered... | instruction | 0 | 105,671 | 9 | 211,342 |
No | output | 1 | 105,671 | 9 | 211,343 |
Provide tags and a correct Python 3 solution for this coding contest problem.
This is the harder version of the problem. In this version, 1 ≤ n ≤ 10^6 and 0 ≤ a_i ≤ 10^6. You can hack this problem if you locked it. But you can hack the previous problem only if you locked both problems
Christmas is coming, and our pro... | instruction | 0 | 107,947 | 9 | 215,894 |
Tags: constructive algorithms, greedy, math, number theory, ternary search, two pointers
Correct Solution:
```
import sys
# inf = open('input.txt', 'r')
# input = inf.readline
input = sys.stdin.readline
n = int(input())
a = list(map(int, input().split()))
def primeDivisors(num):
sqrtNum = int(num ** 0.5) + 1
... | output | 1 | 107,947 | 9 | 215,895 |
Provide tags and a correct Python 3 solution for this coding contest problem.
This is the harder version of the problem. In this version, 1 ≤ n ≤ 10^6 and 0 ≤ a_i ≤ 10^6. You can hack this problem if you locked it. But you can hack the previous problem only if you locked both problems
Christmas is coming, and our pro... | instruction | 0 | 107,948 | 9 | 215,896 |
Tags: constructive algorithms, greedy, math, number theory, ternary search, two pointers
Correct Solution:
```
n = int(input())
l = list(map(int,input().split()))
def jebaj(d, k):
res = 0
pyk = d[0]%k
for i in range(n - 2):
res += min(pyk, k - pyk)
pyk = (pyk + d[i+1])%k
res += min(pyk, k - pyk)
return res
s =... | output | 1 | 107,948 | 9 | 215,897 |
Provide tags and a correct Python 3 solution for this coding contest problem.
This is the harder version of the problem. In this version, 1 ≤ n ≤ 10^6 and 0 ≤ a_i ≤ 10^6. You can hack this problem if you locked it. But you can hack the previous problem only if you locked both problems
Christmas is coming, and our pro... | instruction | 0 | 107,949 | 9 | 215,898 |
Tags: constructive algorithms, greedy, math, number theory, ternary search, two pointers
Correct Solution:
```
import math
arr = [0] * 1000100
n = 0
# Calculate amount of move for prime number x
def gogo(x):
global n
global arr
cv = 0
ans = 0
for i in range(n):
cv = (cv + arr[i]) % x
... | output | 1 | 107,949 | 9 | 215,899 |
Provide tags and a correct Python 3 solution for this coding contest problem.
This is the harder version of the problem. In this version, 1 ≤ n ≤ 10^6 and 0 ≤ a_i ≤ 10^6. You can hack this problem if you locked it. But you can hack the previous problem only if you locked both problems
Christmas is coming, and our pro... | instruction | 0 | 107,950 | 9 | 215,900 |
Tags: constructive algorithms, greedy, math, number theory, ternary search, two pointers
Correct Solution:
```
# kaisetsu AC
import sys
reader = (s.rstrip() for s in sys.stdin)
input = reader.__next__
def divisor(n):
ret = []
for i in range(1, int(n**0.5)+1):
if n % i == 0:
ret.append(i)
... | output | 1 | 107,950 | 9 | 215,901 |
Provide tags and a correct Python 3 solution for this coding contest problem.
This is the harder version of the problem. In this version, 1 ≤ n ≤ 10^6 and 0 ≤ a_i ≤ 10^6. You can hack this problem if you locked it. But you can hack the previous problem only if you locked both problems
Christmas is coming, and our pro... | instruction | 0 | 107,951 | 9 | 215,902 |
Tags: constructive algorithms, greedy, math, number theory, ternary search, two pointers
Correct Solution:
```
import sys
import math
def alele(): return list(map(int, sys.stdin.readline().strip().split()))
def ilele(): return map(int, sys.stdin.readline().strip().split())
def input(): return sys.stdin.readline().strip... | output | 1 | 107,951 | 9 | 215,903 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
This is the harder version of the problem. In this version, 1 ≤ n ≤ 10^6 and 0 ≤ a_i ≤ 10^6. You can hack this problem if you locked it. But you can hack the previous problem only if you locked ... | instruction | 0 | 107,952 | 9 | 215,904 |
No | output | 1 | 107,952 | 9 | 215,905 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
This is the harder version of the problem. In this version, 1 ≤ n ≤ 10^6 and 0 ≤ a_i ≤ 10^6. You can hack this problem if you locked it. But you can hack the previous problem only if you locked ... | instruction | 0 | 107,953 | 9 | 215,906 |
No | output | 1 | 107,953 | 9 | 215,907 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
This is the harder version of the problem. In this version, 1 ≤ n ≤ 10^6 and 0 ≤ a_i ≤ 10^6. You can hack this problem if you locked it. But you can hack the previous problem only if you locked ... | instruction | 0 | 107,954 | 9 | 215,908 |
No | output | 1 | 107,954 | 9 | 215,909 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
This is the harder version of the problem. In this version, 1 ≤ n ≤ 10^6 and 0 ≤ a_i ≤ 10^6. You can hack this problem if you locked it. But you can hack the previous problem only if you locked ... | instruction | 0 | 107,955 | 9 | 215,910 |
No | output | 1 | 107,955 | 9 | 215,911 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Katie, Kuro and Shiro are best friends. They have known each other since kindergarten. That's why they often share everything with each other and work together on some very hard problems.
Today is Shiro's birthday. She really loves pizza so... | instruction | 0 | 108,379 | 9 | 216,758 |
Tags: math
Correct Solution:
```
def cut(n):
if n ==0: return (0)
if n%2:
return (n+1)//2
else:
return (n+1)
n = int(input())
print(cut(n))
``` | output | 1 | 108,379 | 9 | 216,759 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Katie, Kuro and Shiro are best friends. They have known each other since kindergarten. That's why they often share everything with each other and work together on some very hard problems.
Today is Shiro's birthday. She really loves pizza so... | instruction | 0 | 108,380 | 9 | 216,760 |
Tags: math
Correct Solution:
```
import os
import sys
def main():
n = int(input())
if n % 2 == 0 and n != 0:
print(n + 1)
if n % 2 != 0:
print((n + 1) // 2)
if n == 0:
print(0)
if __name__ == "__main__":
main()
``` | output | 1 | 108,380 | 9 | 216,761 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Katie, Kuro and Shiro are best friends. They have known each other since kindergarten. That's why they often share everything with each other and work together on some very hard problems.
Today is Shiro's birthday. She really loves pizza so... | instruction | 0 | 108,381 | 9 | 216,762 |
Tags: math
Correct Solution:
```
n = int(input())
if n == 0:
print(0)
elif n % 2 == 0:
print(n + 1)
else:
print((n + 1) // 2)
``` | output | 1 | 108,381 | 9 | 216,763 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Katie, Kuro and Shiro are best friends. They have known each other since kindergarten. That's why they often share everything with each other and work together on some very hard problems.
Today is Shiro's birthday. She really loves pizza so... | instruction | 0 | 108,382 | 9 | 216,764 |
Tags: math
Correct Solution:
```
a = int(int(input()) + 1)
if a == 1:
print(0)
elif a % 2 == 0:
print(a//2)
else:
print(a)
``` | output | 1 | 108,382 | 9 | 216,765 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Katie, Kuro and Shiro are best friends. They have known each other since kindergarten. That's why they often share everything with each other and work together on some very hard problems.
Today is Shiro's birthday. She really loves pizza so... | instruction | 0 | 108,383 | 9 | 216,766 |
Tags: math
Correct Solution:
```
n = int(input())
if n % 2 == 1:
print((n + 1) // 2)
elif n == 0:
print(0)
else:
print(n + 1)
``` | output | 1 | 108,383 | 9 | 216,767 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Katie, Kuro and Shiro are best friends. They have known each other since kindergarten. That's why they often share everything with each other and work together on some very hard problems.
Today is Shiro's birthday. She really loves pizza so... | instruction | 0 | 108,384 | 9 | 216,768 |
Tags: math
Correct Solution:
```
n=int(input())+1
print(n//2if n%2==0 or n==1 else n)
``` | output | 1 | 108,384 | 9 | 216,769 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Katie, Kuro and Shiro are best friends. They have known each other since kindergarten. That's why they often share everything with each other and work together on some very hard problems.
Today is Shiro's birthday. She really loves pizza so... | instruction | 0 | 108,385 | 9 | 216,770 |
Tags: math
Correct Solution:
```
n=int(input())
if n==0: print(0)
elif n%2: print((n+1)//2)
else: print(n+1)
``` | output | 1 | 108,385 | 9 | 216,771 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Katie, Kuro and Shiro are best friends. They have known each other since kindergarten. That's why they often share everything with each other and work together on some very hard problems.
Today is Shiro's birthday. She really loves pizza so... | instruction | 0 | 108,386 | 9 | 216,772 |
Tags: math
Correct Solution:
```
def read_nums():
return [int(x) for x in input().split()]
def solve(n):
if n == 0:
print(0)
return
if (n + 1) % 2 == 0:
print((n + 1) // 2)
else:
print(n + 1)
def main():
n, = read_nums()
solve(n)
if __name__ == '__main__':... | output | 1 | 108,386 | 9 | 216,773 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Katie, Kuro and Shiro are best friends. They have known each other since kindergarten. That's why they often share everything with each other and work together on some very hard problems.
Today... | instruction | 0 | 108,387 | 9 | 216,774 |
Yes | output | 1 | 108,387 | 9 | 216,775 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Katie, Kuro and Shiro are best friends. They have known each other since kindergarten. That's why they often share everything with each other and work together on some very hard problems.
Today... | instruction | 0 | 108,388 | 9 | 216,776 |
Yes | output | 1 | 108,388 | 9 | 216,777 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Katie, Kuro and Shiro are best friends. They have known each other since kindergarten. That's why they often share everything with each other and work together on some very hard problems.
Today... | instruction | 0 | 108,389 | 9 | 216,778 |
Yes | output | 1 | 108,389 | 9 | 216,779 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Katie, Kuro and Shiro are best friends. They have known each other since kindergarten. That's why they often share everything with each other and work together on some very hard problems.
Today... | instruction | 0 | 108,390 | 9 | 216,780 |
Yes | output | 1 | 108,390 | 9 | 216,781 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Katie, Kuro and Shiro are best friends. They have known each other since kindergarten. That's why they often share everything with each other and work together on some very hard problems.
Today... | instruction | 0 | 108,391 | 9 | 216,782 |
No | output | 1 | 108,391 | 9 | 216,783 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Katie, Kuro and Shiro are best friends. They have known each other since kindergarten. That's why they often share everything with each other and work together on some very hard problems.
Today... | instruction | 0 | 108,392 | 9 | 216,784 |
No | output | 1 | 108,392 | 9 | 216,785 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Katie, Kuro and Shiro are best friends. They have known each other since kindergarten. That's why they often share everything with each other and work together on some very hard problems.
Today... | instruction | 0 | 108,393 | 9 | 216,786 |
No | output | 1 | 108,393 | 9 | 216,787 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Katie, Kuro and Shiro are best friends. They have known each other since kindergarten. That's why they often share everything with each other and work together on some very hard problems.
Today... | instruction | 0 | 108,394 | 9 | 216,788 |
No | output | 1 | 108,394 | 9 | 216,789 |
Provide a correct Python 3 solution for this coding contest problem.
There are N barbecue restaurants along a street. The restaurants are numbered 1 through N from west to east, and the distance between restaurant i and restaurant i+1 is A_i.
Joisino has M tickets, numbered 1 through M. Every barbecue restaurant offe... | instruction | 0 | 108,516 | 9 | 217,032 |
"Correct Solution:
```
import sys
readline = sys.stdin.readline
N, M = map(int, readline().split())
A = [0] + list(map(int, readline().split()))
for i in range(1, N):
A[i] += A[i-1]
INF = 10**9+7
B = [list(map(int, readline().split())) for _ in range(N)] + [[INF]*M] + [[0]*M]
right = [[0]*M for _ in range(N)]
fo... | output | 1 | 108,516 | 9 | 217,033 |
Provide a correct Python 3 solution for this coding contest problem.
There are N barbecue restaurants along a street. The restaurants are numbered 1 through N from west to east, and the distance between restaurant i and restaurant i+1 is A_i.
Joisino has M tickets, numbered 1 through M. Every barbecue restaurant offe... | instruction | 0 | 108,517 | 9 | 217,034 |
"Correct Solution:
```
import sys
read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines
import itertools
INF=10**10
N,M = map(int,readline().split())
A = [0,0]+list(map(int,readline().split()))
B = [[INF]*M]+[list(map(int,line.split())) for line in readlines()]
for... | output | 1 | 108,517 | 9 | 217,035 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are N barbecue restaurants along a street. The restaurants are numbered 1 through N from west to east, and the distance between restaurant i and restaurant i+1 is A_i.
Joisino has M ticke... | instruction | 0 | 108,518 | 9 | 217,036 |
No | output | 1 | 108,518 | 9 | 217,037 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are N barbecue restaurants along a street. The restaurants are numbered 1 through N from west to east, and the distance between restaurant i and restaurant i+1 is A_i.
Joisino has M ticke... | instruction | 0 | 108,519 | 9 | 217,038 |
No | output | 1 | 108,519 | 9 | 217,039 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are N barbecue restaurants along a street. The restaurants are numbered 1 through N from west to east, and the distance between restaurant i and restaurant i+1 is A_i.
Joisino has M ticke... | instruction | 0 | 108,520 | 9 | 217,040 |
No | output | 1 | 108,520 | 9 | 217,041 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are N barbecue restaurants along a street. The restaurants are numbered 1 through N from west to east, and the distance between restaurant i and restaurant i+1 is A_i.
Joisino has M ticke... | instruction | 0 | 108,521 | 9 | 217,042 |
No | output | 1 | 108,521 | 9 | 217,043 |
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