message stringlengths 2 22.8k | message_type stringclasses 2
values | message_id int64 0 1 | conversation_id int64 16 109k | cluster float64 1 1 | __index_level_0__ int64 32 217k |
|---|---|---|---|---|---|
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Iahub is a big fan of tourists. He wants to become a tourist himself, so he planned a trip. There are n destinations on a straight road that Iahub wants to visit. Iahub starts the excursion from... | instruction | 0 | 108,177 | 1 | 216,354 |
No | output | 1 | 108,177 | 1 | 216,355 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Iahub is a big fan of tourists. He wants to become a tourist himself, so he planned a trip. There are n destinations on a straight road that Iahub wants to visit. Iahub starts the excursion from... | instruction | 0 | 108,178 | 1 | 216,356 |
No | output | 1 | 108,178 | 1 | 216,357 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Iahub is a big fan of tourists. He wants to become a tourist himself, so he planned a trip. There are n destinations on a straight road that Iahub wants to visit. Iahub starts the excursion from... | instruction | 0 | 108,179 | 1 | 216,358 |
No | output | 1 | 108,179 | 1 | 216,359 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Nudist Beach is planning a military operation to attack the Life Fibers. In this operation, they will attack and capture several cities which are currently under the control of the Life Fibers.
There are n cities, labeled from 1 to n, and m... | instruction | 0 | 108,240 | 1 | 216,480 |
Tags: binary search, graphs, greedy
Correct Solution:
```
import heapq
def read_data():
'''
n: number of cities
m: number of roads
k: initial numuber of fortresses of Life Fibers
Es: list of edges
fs: fs[i] = True -> city i is under control of Life Fibers
gs: gs[i] number of edges connected... | output | 1 | 108,240 | 1 | 216,481 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Nudist Beach is planning a military operation to attack the Life Fibers. In this operation, they will attack and capture several cities which are currently under the control of the Life Fibers.
... | instruction | 0 | 108,241 | 1 | 216,482 |
No | output | 1 | 108,241 | 1 | 216,483 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Barney lives in country USC (United States of Charzeh). USC has n cities numbered from 1 through n and n - 1 roads between them. Cities and roads of USC form a rooted tree (Barney's not sure why it is rooted). Root of the tree is the city nu... | instruction | 0 | 108,287 | 1 | 216,574 |
Tags: dfs and similar, math, probabilities, trees
Correct Solution:
```
n = int(input())
if n == 1:
print(1.0)
exit()
val = [1] + list(map(int, input().split()))
for i in range(n):
val[i] -= 1
size = [1] * n
par = [[] for i in range(n)]
for i in reversed(range(n)):
if val[i] != i:
size[val[... | output | 1 | 108,287 | 1 | 216,575 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Barney lives in country USC (United States of Charzeh). USC has n cities numbered from 1 through n and n - 1 roads between them. Cities and roads of USC form a rooted tree (Barney's not sure why it is rooted). Root of the tree is the city nu... | instruction | 0 | 108,288 | 1 | 216,576 |
Tags: dfs and similar, math, probabilities, trees
Correct Solution:
```
import sys
input = sys.stdin.readline
n = int(input())
par = [-1] + [int(i) - 1 for i in input().split()]
child = [[] for i in range(n)]
for i in range(1, n):
child[par[i]].append(i)
size = [1] * n
def dfs():
stack = [0]
visit = [Fals... | output | 1 | 108,288 | 1 | 216,577 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Barney lives in country USC (United States of Charzeh). USC has n cities numbered from 1 through n and n - 1 roads between them. Cities and roads of USC form a rooted tree (Barney's not sure why it is rooted). Root of the tree is the city nu... | instruction | 0 | 108,289 | 1 | 216,578 |
Tags: dfs and similar, math, probabilities, trees
Correct Solution:
```
class tree_node():
def __init__(self):
self.children = []
self.parent = None
self.time = 0
self.downstream = 0
def addChild(self, node):
self.children.append(node)
num_cities = int(input())
if num_... | output | 1 | 108,289 | 1 | 216,579 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Barney lives in country USC (United States of Charzeh). USC has n cities numbered from 1 through n and n - 1 roads between them. Cities and roads of USC form a rooted tree (Barney's not sure why it is rooted). Root of the tree is the city nu... | instruction | 0 | 108,290 | 1 | 216,580 |
Tags: dfs and similar, math, probabilities, trees
Correct Solution:
```
import sys
def main():
n = int(sys.stdin.readline())
parent = [0] * (n + 1)
children = [list() for i in range(n + 1)]
d = list(map(int, sys.stdin.readline().split()))
for i, value in enumerate(d):
i += 2
parent[... | output | 1 | 108,290 | 1 | 216,581 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Barney lives in country USC (United States of Charzeh). USC has n cities numbered from 1 through n and n - 1 roads between them. Cities and roads of USC form a rooted tree (Barney's not sure why it is rooted). Root of the tree is the city nu... | instruction | 0 | 108,291 | 1 | 216,582 |
Tags: dfs and similar, math, probabilities, trees
Correct Solution:
```
n = int(input())
pos, tree, ans, sz = list(map(int,input().split())) if n > 1 else [],[],[],[]
for i in range(n):
tree.append([])
ans.append(0.0)
sz.append(0)
for i in range(n - 1):
tree[pos[i] - 1].append(i + 1)
for i in range(n)[::-1]:
... | output | 1 | 108,291 | 1 | 216,583 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Barney lives in country USC (United States of Charzeh). USC has n cities numbered from 1 through n and n - 1 roads between them. Cities and roads of USC form a rooted tree (Barney's not sure why it is rooted). Root of the tree is the city nu... | instruction | 0 | 108,292 | 1 | 216,584 |
Tags: dfs and similar, math, probabilities, trees
Correct Solution:
```
# -*- coding: utf-8 -*-
"""
Created on Mon Jul 18 23:02:10 2016
@author: pinku
"""
n = int(input())
if n>1:
p = input().split(' ')
else:
p = []
g = []
ans = []
sz = []
for i in range(0,n):
g.append([]) #creating 2d array
ans.app... | output | 1 | 108,292 | 1 | 216,585 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Barney lives in country USC (United States of Charzeh). USC has n cities numbered from 1 through n and n - 1 roads between them. Cities and roads of USC form a rooted tree (Barney's not sure why it is rooted). Root of the tree is the city nu... | instruction | 0 | 108,293 | 1 | 216,586 |
Tags: dfs and similar, math, probabilities, trees
Correct Solution:
```
n = int(input())
if n ==1:
print(1)
exit(0)
l = list(map(int,input().split()))
w = [[]for i in range(n)]
sz = [1]*n
for i in range(n-1):
w[l[i]-1].append(i+1)
for i in range(n-1,-1,-1):
for j in range(len(w[i])):
sz[i]+=sz[w... | output | 1 | 108,293 | 1 | 216,587 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Barney lives in country USC (United States of Charzeh). USC has n cities numbered from 1 through n and n - 1 roads between them. Cities and roads of USC form a rooted tree (Barney's not sure why it is rooted). Root of the tree is the city nu... | instruction | 0 | 108,294 | 1 | 216,588 |
Tags: dfs and similar, math, probabilities, trees
Correct Solution:
```
import queue
n = int(input())
if (n > 1):
ps = [None, None] + list(map(int, input().split()))
else:
ps = [None, None]
tree_sizes = [None] + [0] * n
children = [None] + [[] for _ in range(n)]
expected = [None] + [0] * n
for i, p in enume... | output | 1 | 108,294 | 1 | 216,589 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Barney lives in country USC (United States of Charzeh). USC has n cities numbered from 1 through n and n - 1 roads between them. Cities and roads of USC form a rooted tree (Barney's not sure why... | instruction | 0 | 108,295 | 1 | 216,590 |
Yes | output | 1 | 108,295 | 1 | 216,591 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Barney lives in country USC (United States of Charzeh). USC has n cities numbered from 1 through n and n - 1 roads between them. Cities and roads of USC form a rooted tree (Barney's not sure why... | instruction | 0 | 108,296 | 1 | 216,592 |
Yes | output | 1 | 108,296 | 1 | 216,593 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Barney lives in country USC (United States of Charzeh). USC has n cities numbered from 1 through n and n - 1 roads between them. Cities and roads of USC form a rooted tree (Barney's not sure why... | instruction | 0 | 108,297 | 1 | 216,594 |
Yes | output | 1 | 108,297 | 1 | 216,595 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Barney lives in country USC (United States of Charzeh). USC has n cities numbered from 1 through n and n - 1 roads between them. Cities and roads of USC form a rooted tree (Barney's not sure why... | instruction | 0 | 108,298 | 1 | 216,596 |
No | output | 1 | 108,298 | 1 | 216,597 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Barney lives in country USC (United States of Charzeh). USC has n cities numbered from 1 through n and n - 1 roads between them. Cities and roads of USC form a rooted tree (Barney's not sure why... | instruction | 0 | 108,299 | 1 | 216,598 |
No | output | 1 | 108,299 | 1 | 216,599 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Barney lives in country USC (United States of Charzeh). USC has n cities numbered from 1 through n and n - 1 roads between them. Cities and roads of USC form a rooted tree (Barney's not sure why... | instruction | 0 | 108,300 | 1 | 216,600 |
No | output | 1 | 108,300 | 1 | 216,601 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Barney lives in country USC (United States of Charzeh). USC has n cities numbered from 1 through n and n - 1 roads between them. Cities and roads of USC form a rooted tree (Barney's not sure why... | instruction | 0 | 108,301 | 1 | 216,602 |
No | output | 1 | 108,301 | 1 | 216,603 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
This story is happening in a town named BubbleLand. There are n houses in BubbleLand. In each of these n houses lives a boy or a girl. People there really love numbers and everyone has their fav... | instruction | 0 | 108,346 | 1 | 216,692 |
No | output | 1 | 108,346 | 1 | 216,693 |
Provide a correct Python 3 solution for this coding contest problem.
In 1862, the lord of Aizu was ordered to serve as a guardian of Kyoto. The Kyoto Shugoshoku is an important role to protect Kyoto at the end of the Edo period when security has deteriorated. You have to patrol the city by sharing it with the shogunat... | instruction | 0 | 108,538 | 1 | 217,076 |
"Correct Solution:
```
while True:
try:
d = {}
while True:
a, b = map(int, input().split())
if a == 0:
break
if a in d:
d[a] += 1
else:
d[a] = 1
if b in d:
d[b] += 1
... | output | 1 | 108,538 | 1 | 217,077 |
Provide a correct Python 3 solution for this coding contest problem.
In 1862, the lord of Aizu was ordered to serve as a guardian of Kyoto. The Kyoto Shugoshoku is an important role to protect Kyoto at the end of the Edo period when security has deteriorated. You have to patrol the city by sharing it with the shogunat... | instruction | 0 | 108,539 | 1 | 217,078 |
"Correct Solution:
```
while 1:
try:
v = [0]*101
a, b = map(int, input().split())
v[a] += 1
v[b] += 1
while 1:
a, b = map(int, input().split())
if a == 0:
break
v[a] += 1
v[b] += 1
flag = 0
for ... | output | 1 | 108,539 | 1 | 217,079 |
Provide a correct Python 3 solution for this coding contest problem.
In 1862, the lord of Aizu was ordered to serve as a guardian of Kyoto. The Kyoto Shugoshoku is an important role to protect Kyoto at the end of the Edo period when security has deteriorated. You have to patrol the city by sharing it with the shogunat... | instruction | 0 | 108,540 | 1 | 217,080 |
"Correct Solution:
```
import sys
readlines = sys.stdin.readlines
write = sys.stdout.write
def solve():
L = 100
G = [[] for i in range(L)]
for line in readlines():
a, b = map(int, line.split())
if a != 0 != b:
G[a-1].append(b-1)
G[b-1].append(a-1)
continue... | output | 1 | 108,540 | 1 | 217,081 |
Provide a correct Python 3 solution for this coding contest problem.
In 1862, the lord of Aizu was ordered to serve as a guardian of Kyoto. The Kyoto Shugoshoku is an important role to protect Kyoto at the end of the Edo period when security has deteriorated. You have to patrol the city by sharing it with the shogunat... | instruction | 0 | 108,541 | 1 | 217,082 |
"Correct Solution:
```
def ap(i):
if len(root)<i:
for _ in range(i-len(root)):root.append(0)
root[i-1]=[0,1][root[i-1]==0]
while 1:
try:
root=[0,0]
while 1:
n,m=map(int,input().split())
if n==m==0:break
ap(n)
ap(m)
if root.pop(0... | output | 1 | 108,541 | 1 | 217,083 |
Provide a correct Python 3 solution for this coding contest problem.
In 1862, the lord of Aizu was ordered to serve as a guardian of Kyoto. The Kyoto Shugoshoku is an important role to protect Kyoto at the end of the Edo period when security has deteriorated. You have to patrol the city by sharing it with the shogunat... | instruction | 0 | 108,542 | 1 | 217,084 |
"Correct Solution:
```
import sys
from collections import defaultdict
data_list = []
for line in sys.stdin:
data_list.append(list(map(int, line.split())))
def is_half_euler_graph(node_list):
for node in node_list:
isBool = True
for dic_key, dic_value in node.items():
if dic_key != ... | output | 1 | 108,542 | 1 | 217,085 |
Provide a correct Python 3 solution for this coding contest problem.
In 1862, the lord of Aizu was ordered to serve as a guardian of Kyoto. The Kyoto Shugoshoku is an important role to protect Kyoto at the end of the Edo period when security has deteriorated. You have to patrol the city by sharing it with the shogunat... | instruction | 0 | 108,543 | 1 | 217,086 |
"Correct Solution:
```
# AOJ 0086 Patrol
# Python3 2018.6.17 bal4u
while True:
try: a, b = list(map(int, input().split()))
except: break
c = [0]*105
n = 0
while True:
if a != b:
c[a] += 1
c[b] += 1
if a > n: n = a
if b > n: n = b
a, b = list(map(int, input().split()))
if a == 0: break
f = Fals... | output | 1 | 108,543 | 1 | 217,087 |
Provide a correct Python 3 solution for this coding contest problem.
In 1862, the lord of Aizu was ordered to serve as a guardian of Kyoto. The Kyoto Shugoshoku is an important role to protect Kyoto at the end of the Edo period when security has deteriorated. You have to patrol the city by sharing it with the shogunat... | instruction | 0 | 108,544 | 1 | 217,088 |
"Correct Solution:
```
def solve():
dic = {}
while True:
a, b = map(int, input().split())
if not a:
break
if a in dic:
dic[a] += 1
else:
dic[a] = 1
if b in dic:
dic[b] += 1
else:
dic[b] = 1
#スタートとゴールの次数が偶数ならNG
if not dic[1] % 2 or not dic[2] % 2:
... | output | 1 | 108,544 | 1 | 217,089 |
Provide a correct Python 3 solution for this coding contest problem.
In 1862, the lord of Aizu was ordered to serve as a guardian of Kyoto. The Kyoto Shugoshoku is an important role to protect Kyoto at the end of the Edo period when security has deteriorated. You have to patrol the city by sharing it with the shogunat... | instruction | 0 | 108,545 | 1 | 217,090 |
"Correct Solution:
```
import sys
v=[0]*100
for e in sys.stdin:
a,b=map(int,e.split())
v[a]+=1;v[b]+=1
if a==0:
print(['NG','OK'][(v[1]&1)*(v[2]&1)*sum(x&1 for x in v)==2])
v=[0]*100
``` | output | 1 | 108,545 | 1 | 217,091 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
In 1862, the lord of Aizu was ordered to serve as a guardian of Kyoto. The Kyoto Shugoshoku is an important role to protect Kyoto at the end of the Edo period when security has deteriorated. You... | instruction | 0 | 108,546 | 1 | 217,092 |
Yes | output | 1 | 108,546 | 1 | 217,093 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
In 1862, the lord of Aizu was ordered to serve as a guardian of Kyoto. The Kyoto Shugoshoku is an important role to protect Kyoto at the end of the Edo period when security has deteriorated. You... | instruction | 0 | 108,547 | 1 | 217,094 |
Yes | output | 1 | 108,547 | 1 | 217,095 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
In 1862, the lord of Aizu was ordered to serve as a guardian of Kyoto. The Kyoto Shugoshoku is an important role to protect Kyoto at the end of the Edo period when security has deteriorated. You... | instruction | 0 | 108,548 | 1 | 217,096 |
Yes | output | 1 | 108,548 | 1 | 217,097 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
In 1862, the lord of Aizu was ordered to serve as a guardian of Kyoto. The Kyoto Shugoshoku is an important role to protect Kyoto at the end of the Edo period when security has deteriorated. You... | instruction | 0 | 108,549 | 1 | 217,098 |
Yes | output | 1 | 108,549 | 1 | 217,099 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
In 1862, the lord of Aizu was ordered to serve as a guardian of Kyoto. The Kyoto Shugoshoku is an important role to protect Kyoto at the end of the Edo period when security has deteriorated. You... | instruction | 0 | 108,550 | 1 | 217,100 |
No | output | 1 | 108,550 | 1 | 217,101 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
In 1862, the lord of Aizu was ordered to serve as a guardian of Kyoto. The Kyoto Shugoshoku is an important role to protect Kyoto at the end of the Edo period when security has deteriorated. You... | instruction | 0 | 108,551 | 1 | 217,102 |
No | output | 1 | 108,551 | 1 | 217,103 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
In 1862, the lord of Aizu was ordered to serve as a guardian of Kyoto. The Kyoto Shugoshoku is an important role to protect Kyoto at the end of the Edo period when security has deteriorated. You... | instruction | 0 | 108,552 | 1 | 217,104 |
No | output | 1 | 108,552 | 1 | 217,105 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
In 1862, the lord of Aizu was ordered to serve as a guardian of Kyoto. The Kyoto Shugoshoku is an important role to protect Kyoto at the end of the Edo period when security has deteriorated. You... | instruction | 0 | 108,553 | 1 | 217,106 |
No | output | 1 | 108,553 | 1 | 217,107 |
Provide a correct Python 3 solution for this coding contest problem.
The postal system in the area where Masa lives has changed a bit. In this area, each post office is numbered consecutively from 1 to a different number, and mail delivered to a post office is intended from that post office via several post offices. D... | instruction | 0 | 108,593 | 1 | 217,186 |
"Correct Solution:
```
def solve():
from sys import stdin
f_i = stdin
ans = ''
while True:
n, m = map(int, f_i.readline().split())
if n == 0:
break
# prep for warshall-floyd algorithm
inf = 10000 * 31 + 1
dist = [[inf] * n for i in r... | output | 1 | 108,593 | 1 | 217,187 |
Provide a correct Python 3 solution for this coding contest problem.
The postal system in the area where Masa lives has changed a bit. In this area, each post office is numbered consecutively from 1 to a different number, and mail delivered to a post office is intended from that post office via several post offices. D... | instruction | 0 | 108,594 | 1 | 217,188 |
"Correct Solution:
```
from heapq import heappush, heappop, heapify
from collections import defaultdict
import sys
readline = sys.stdin.readline
write = sys.stdout.write
def solve(q):
N, M = map(int, readline().split())
if N == M == 0:
return False
if q:
write("\n")
INF = 10**18
G = ... | output | 1 | 108,594 | 1 | 217,189 |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.