message stringlengths 2 49.9k | message_type stringclasses 2
values | message_id int64 0 1 | conversation_id int64 446 108k | cluster float64 13 13 | __index_level_0__ int64 892 217k |
|---|---|---|---|---|---|
Provide a correct Python 3 solution for this coding contest problem.
You are given an undirected unweighted graph with N vertices and M edges that contains neither self-loops nor double edges.
Here, a self-loop is an edge where a_i = b_i (1≤i≤M), and double edges are two edges where (a_i,b_i)=(a_j,b_j) or (a_i,b_i)=(b... | instruction | 0 | 67,109 | 13 | 134,218 |
"Correct Solution:
```
from itertools import permutations
n,m = map(int,input().split())
edge = [[0]*n for i in range(n)]
for i in range(m):
a,b = map(int,input().split())
a-=1; b-=1
edge[a][b] = edge[b][a] = 1
ret = 0
for i in permutations(range(n)):
if i[0] != 0 : break
for j in range(n-1):
... | output | 1 | 67,109 | 13 | 134,219 |
Provide a correct Python 3 solution for this coding contest problem.
You are given an undirected unweighted graph with N vertices and M edges that contains neither self-loops nor double edges.
Here, a self-loop is an edge where a_i = b_i (1≤i≤M), and double edges are two edges where (a_i,b_i)=(a_j,b_j) or (a_i,b_i)=(b... | instruction | 0 | 67,110 | 13 | 134,220 |
"Correct Solution:
```
import itertools
N, M, *AB = [int(_) for _ in open(0).read().split()]
G = [set() for _ in range(N)]
for a, b in zip(AB[::2], AB[1::2]):
a -= 1
b -= 1
G[a].add(b)
G[b].add(a)
ans = 0
for root in itertools.permutations(range(1, N), N - 1):
root = [0] + list(root)
if all(a in... | output | 1 | 67,110 | 13 | 134,221 |
Provide a correct Python 3 solution for this coding contest problem.
You are given an undirected unweighted graph with N vertices and M edges that contains neither self-loops nor double edges.
Here, a self-loop is an edge where a_i = b_i (1≤i≤M), and double edges are two edges where (a_i,b_i)=(a_j,b_j) or (a_i,b_i)=(b... | instruction | 0 | 67,111 | 13 | 134,222 |
"Correct Solution:
```
import itertools
N,M=map(int,input().split())
edges=[]
for i in range(M):
edges.append(list(map(int,input().split())))
res=0
for i in itertools.permutations(range(2,N+1),N-1):
path=[1]+list(i)
check=[sorted(path[i:i+2]) in edges for i in range(len(path)-1)]
if not False in check:... | output | 1 | 67,111 | 13 | 134,223 |
Provide a correct Python 3 solution for this coding contest problem.
You are given an undirected unweighted graph with N vertices and M edges that contains neither self-loops nor double edges.
Here, a self-loop is an edge where a_i = b_i (1≤i≤M), and double edges are two edges where (a_i,b_i)=(a_j,b_j) or (a_i,b_i)=(b... | instruction | 0 | 67,112 | 13 | 134,224 |
"Correct Solution:
```
import itertools
N, M = map(int, input().split())
E = [[] for i in range(N)]
for i in range(M):
a, b = map(int, input().split())
a -= 1
b -= 1
E[a].append(b)
E[b].append(a)
count = 0
for V in itertools.permutations(range(1, N)):
if V[0] in E[0] and all(V[i] in E[V[i-1]] ... | output | 1 | 67,112 | 13 | 134,225 |
Provide a correct Python 3 solution for this coding contest problem.
You are given an undirected unweighted graph with N vertices and M edges that contains neither self-loops nor double edges.
Here, a self-loop is an edge where a_i = b_i (1≤i≤M), and double edges are two edges where (a_i,b_i)=(a_j,b_j) or (a_i,b_i)=(b... | instruction | 0 | 67,113 | 13 | 134,226 |
"Correct Solution:
```
N,M = map(int,input().split(" "))
G = [[] for x in range(N)]
E = [0]*N
for i in range(M):
a,b = map(int,input().split(" "))
a -= 1
b -= 1
G[a].append(b)
G[b].append(a)
def search(x):
a = 0
E[x] = 1
if 0 not in E:
a += 1
for g in G[x]:
if E[g] =... | output | 1 | 67,113 | 13 | 134,227 |
Provide a correct Python 3 solution for this coding contest problem.
You are given an undirected unweighted graph with N vertices and M edges that contains neither self-loops nor double edges.
Here, a self-loop is an edge where a_i = b_i (1≤i≤M), and double edges are two edges where (a_i,b_i)=(a_j,b_j) or (a_i,b_i)=(b... | instruction | 0 | 67,114 | 13 | 134,228 |
"Correct Solution:
```
n,m=map(int,input().split())
g=[[] for _ in range(n)]
for _ in range(m):
a,b=map(int,input().split())
a,b=a-1,b-1
g[a].append(b)
g[b].append(a)
ed=[0]*n
ed[0]=1
ans=[0]*n
def f(x):
if 0 not in ed:
ans[x]+=1
return
for a in g[x]:
if ed[a]==0:
... | output | 1 | 67,114 | 13 | 134,229 |
Provide a correct Python 3 solution for this coding contest problem.
You are given an undirected unweighted graph with N vertices and M edges that contains neither self-loops nor double edges.
Here, a self-loop is an edge where a_i = b_i (1≤i≤M), and double edges are two edges where (a_i,b_i)=(a_j,b_j) or (a_i,b_i)=(b... | instruction | 0 | 67,115 | 13 | 134,230 |
"Correct Solution:
```
import itertools
N,M=map(int,input().split())
route=[list(map(int,input().split())) for _ in range(M)]
candidate=list(itertools.permutations(range(1,N+1)))
ans=0
for c in candidate:
if c[0]==1:
for i in range(N-1):
l=sorted([c[i], c[i+1]])
if l not in route:
break
... | output | 1 | 67,115 | 13 | 134,231 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given an undirected unweighted graph with N vertices and M edges that contains neither self-loops nor double edges.
Here, a self-loop is an edge where a_i = b_i (1≤i≤M), and double edges... | instruction | 0 | 67,116 | 13 | 134,232 |
Yes | output | 1 | 67,116 | 13 | 134,233 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given an undirected unweighted graph with N vertices and M edges that contains neither self-loops nor double edges.
Here, a self-loop is an edge where a_i = b_i (1≤i≤M), and double edges... | instruction | 0 | 67,117 | 13 | 134,234 |
Yes | output | 1 | 67,117 | 13 | 134,235 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given an undirected unweighted graph with N vertices and M edges that contains neither self-loops nor double edges.
Here, a self-loop is an edge where a_i = b_i (1≤i≤M), and double edges... | instruction | 0 | 67,118 | 13 | 134,236 |
Yes | output | 1 | 67,118 | 13 | 134,237 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given an undirected unweighted graph with N vertices and M edges that contains neither self-loops nor double edges.
Here, a self-loop is an edge where a_i = b_i (1≤i≤M), and double edges... | instruction | 0 | 67,119 | 13 | 134,238 |
Yes | output | 1 | 67,119 | 13 | 134,239 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given an undirected unweighted graph with N vertices and M edges that contains neither self-loops nor double edges.
Here, a self-loop is an edge where a_i = b_i (1≤i≤M), and double edges... | instruction | 0 | 67,120 | 13 | 134,240 |
No | output | 1 | 67,120 | 13 | 134,241 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given an undirected unweighted graph with N vertices and M edges that contains neither self-loops nor double edges.
Here, a self-loop is an edge where a_i = b_i (1≤i≤M), and double edges... | instruction | 0 | 67,121 | 13 | 134,242 |
No | output | 1 | 67,121 | 13 | 134,243 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given an undirected unweighted graph with N vertices and M edges that contains neither self-loops nor double edges.
Here, a self-loop is an edge where a_i = b_i (1≤i≤M), and double edges... | instruction | 0 | 67,122 | 13 | 134,244 |
No | output | 1 | 67,122 | 13 | 134,245 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given an undirected unweighted graph with N vertices and M edges that contains neither self-loops nor double edges.
Here, a self-loop is an edge where a_i = b_i (1≤i≤M), and double edges... | instruction | 0 | 67,123 | 13 | 134,246 |
No | output | 1 | 67,123 | 13 | 134,247 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Given a tree with n (1 ≤ n ≤ 200,000) nodes and a list of q (1 ≤ q ≤ 100,000) queries, process the queries in order and output a value for each output query. The given tree is connected and each... | instruction | 0 | 67,214 | 13 | 134,428 |
No | output | 1 | 67,214 | 13 | 134,429 |
Provide a correct Python 3 solution for this coding contest problem.
A binary search tree can be unbalanced depending on features of data. For example, if we insert $n$ elements into a binary search tree in ascending order, the tree become a list, leading to long search times. One of strategies is to randomly shuffle ... | instruction | 0 | 67,219 | 13 | 134,438 |
"Correct Solution:
```
import random
from collections import deque
class TreapNode():
"""節クラス: valは節の値, priorityは節の優先度を表す
parent/left/rightはそれぞれ親/左側の子/右側の子へのポインタを表す
"""
def __init__(self, val, priority):
self.val = val
self.priority = priority # random.random()
self.parent = No... | output | 1 | 67,219 | 13 | 134,439 |
Provide a correct Python 3 solution for this coding contest problem.
A binary search tree can be unbalanced depending on features of data. For example, if we insert $n$ elements into a binary search tree in ascending order, the tree become a list, leading to long search times. One of strategies is to randomly shuffle ... | instruction | 0 | 67,220 | 13 | 134,440 |
"Correct Solution:
```
class Node:
def __init__(self, key, pri):
self.key = key
self.pri = pri
self.left = None
self.right = None
def rRotate(t):
s = t.left
t.left = s.right
s.right = t
return s
def lRotate(t):
s = t.right
t.right = s.left
... | output | 1 | 67,220 | 13 | 134,441 |
Provide a correct Python 3 solution for this coding contest problem.
A binary search tree can be unbalanced depending on features of data. For example, if we insert $n$ elements into a binary search tree in ascending order, the tree become a list, leading to long search times. One of strategies is to randomly shuffle ... | instruction | 0 | 67,221 | 13 | 134,442 |
"Correct Solution:
```
class Node:
def __init__(self, key, priority):
self.right = None
self.left = None
self.parent = None
self.key = key
self.priority = priority
def preorder(self):
ret = [self.key]
if self.left:
ret += self.left.preorder()
... | output | 1 | 67,221 | 13 | 134,443 |
Provide a correct Python 3 solution for this coding contest problem.
A binary search tree can be unbalanced depending on features of data. For example, if we insert $n$ elements into a binary search tree in ascending order, the tree become a list, leading to long search times. One of strategies is to randomly shuffle ... | instruction | 0 | 67,222 | 13 | 134,444 |
"Correct Solution:
```
import sys
from collections import namedtuple
Node = namedtuple('Node', ['key', 'priority', 'left', 'right'])
class Treap:
MAX_KEY = 2000000000
MAX_PRIORITY = 2000000000
def __init__(self):
self.root = None
def insert(self, key, priority):
def _insert(node):
... | output | 1 | 67,222 | 13 | 134,445 |
Provide a correct Python 3 solution for this coding contest problem.
A binary search tree can be unbalanced depending on features of data. For example, if we insert $n$ elements into a binary search tree in ascending order, the tree become a list, leading to long search times. One of strategies is to randomly shuffle ... | instruction | 0 | 67,223 | 13 | 134,446 |
"Correct Solution:
```
# coding:utf-8
NIL = None
class Node():
def __init__(self, key, pri):
self.key = key
self.pri = pri
self.right = NIL
self.left = NIL
def rightRotate(t):
s = t.left
t.left = s.right
s.right = t
return s
def leftRotate(t):
s = t.right
t.right = s.left
s.left = t
return s
def... | output | 1 | 67,223 | 13 | 134,447 |
Provide a correct Python 3 solution for this coding contest problem.
A binary search tree can be unbalanced depending on features of data. For example, if we insert $n$ elements into a binary search tree in ascending order, the tree become a list, leading to long search times. One of strategies is to randomly shuffle ... | instruction | 0 | 67,224 | 13 | 134,448 |
"Correct Solution:
```
class Node:
def __init__(self, key, priority):
self.key = key
self.pri = priority
self.parent = None
self.left = None
self.right = None
def insert(self, z):
if z.key < self.key:
if self.left:
self.left.in... | output | 1 | 67,224 | 13 | 134,449 |
Provide a correct Python 3 solution for this coding contest problem.
A binary search tree can be unbalanced depending on features of data. For example, if we insert $n$ elements into a binary search tree in ascending order, the tree become a list, leading to long search times. One of strategies is to randomly shuffle ... | instruction | 0 | 67,225 | 13 | 134,450 |
"Correct Solution:
```
# Treap
class Node():
def __init__(self, k, p):
self.k = k
self.p = p
self.left = None
self.right = None
def rightRotate(t):
s = t.left
t.left = s.right
s.right = t
return s
def leftRotate(t):
s = t.right
t.right = s.left
s.left = ... | output | 1 | 67,225 | 13 | 134,451 |
Provide a correct Python 3 solution for this coding contest problem.
A binary search tree can be unbalanced depending on features of data. For example, if we insert $n$ elements into a binary search tree in ascending order, the tree become a list, leading to long search times. One of strategies is to randomly shuffle ... | instruction | 0 | 67,226 | 13 | 134,452 |
"Correct Solution:
```
class Node:
def __init__(self, key, priority):
self.key = key
self.priority = priority
self.parent = None
self.left = None
self.right = None
# 根
parent_node = None
# カウンター
counter = 0
def getRoot(u):
while u.parent != None:
... | output | 1 | 67,226 | 13 | 134,453 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A binary search tree can be unbalanced depending on features of data. For example, if we insert $n$ elements into a binary search tree in ascending order, the tree become a list, leading to long... | instruction | 0 | 67,227 | 13 | 134,454 |
Yes | output | 1 | 67,227 | 13 | 134,455 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A binary search tree can be unbalanced depending on features of data. For example, if we insert $n$ elements into a binary search tree in ascending order, the tree become a list, leading to long... | instruction | 0 | 67,228 | 13 | 134,456 |
Yes | output | 1 | 67,228 | 13 | 134,457 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A binary search tree can be unbalanced depending on features of data. For example, if we insert $n$ elements into a binary search tree in ascending order, the tree become a list, leading to long... | instruction | 0 | 67,229 | 13 | 134,458 |
Yes | output | 1 | 67,229 | 13 | 134,459 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A binary search tree can be unbalanced depending on features of data. For example, if we insert $n$ elements into a binary search tree in ascending order, the tree become a list, leading to long... | instruction | 0 | 67,230 | 13 | 134,460 |
Yes | output | 1 | 67,230 | 13 | 134,461 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A binary search tree can be unbalanced depending on features of data. For example, if we insert $n$ elements into a binary search tree in ascending order, the tree become a list, leading to long... | instruction | 0 | 67,231 | 13 | 134,462 |
No | output | 1 | 67,231 | 13 | 134,463 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A binary search tree can be unbalanced depending on features of data. For example, if we insert $n$ elements into a binary search tree in ascending order, the tree become a list, leading to long... | instruction | 0 | 67,232 | 13 | 134,464 |
No | output | 1 | 67,232 | 13 | 134,465 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A binary search tree can be unbalanced depending on features of data. For example, if we insert $n$ elements into a binary search tree in ascending order, the tree become a list, leading to long... | instruction | 0 | 67,233 | 13 | 134,466 |
No | output | 1 | 67,233 | 13 | 134,467 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A binary search tree can be unbalanced depending on features of data. For example, if we insert $n$ elements into a binary search tree in ascending order, the tree become a list, leading to long... | instruction | 0 | 67,234 | 13 | 134,468 |
No | output | 1 | 67,234 | 13 | 134,469 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Alice and Bob are playing a fun game of tree tag.
The game is played on a tree of n vertices numbered from 1 to n. Recall that a tree on n vertices is an undirected, connected graph with n-1 edges.
Initially, Alice is located at vertex a, ... | instruction | 0 | 67,466 | 13 | 134,932 |
Tags: dfs and similar, dp, games, trees
Correct Solution:
```
# -*- coding: utf-8 -*-
# import bisect
# import heapq
# import math
# import random
# from collections import Counter, defaultdict, deque
# from decimal import ROUND_CEILING, ROUND_HALF_UP, Decimal
# from fractions import Fraction
# from functools import lr... | output | 1 | 67,466 | 13 | 134,933 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Alice and Bob are playing a fun game of tree tag.
The game is played on a tree of n vertices numbered from 1 to n. Recall that a tree on n vertices is an undirected, connected graph with n-1 edges.
Initially, Alice is located at vertex a, ... | instruction | 0 | 67,467 | 13 | 134,934 |
Tags: dfs and similar, dp, games, trees
Correct Solution:
```
import io
import os
from collections import Counter, defaultdict, deque
def bfs(source, getNbr):
q = deque([source])
dist = {source: 0}
while q:
node = q.popleft()
d = dist[node]
for nbr in getNbr(node):
if ... | output | 1 | 67,467 | 13 | 134,935 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Alice and Bob are playing a fun game of tree tag.
The game is played on a tree of n vertices numbered from 1 to n. Recall that a tree on n vertices is an undirected, connected graph with n-1 edges.
Initially, Alice is located at vertex a, ... | instruction | 0 | 67,468 | 13 | 134,936 |
Tags: dfs and similar, dp, games, trees
Correct Solution:
```
from sys import stdin
def inp():
return stdin.buffer.readline().rstrip().decode('utf8')
def itg():
return int(stdin.buffer.readline())
def mpint():
return map(int, stdin.buffer.readline().split())
# ############################## import
f... | output | 1 | 67,468 | 13 | 134,937 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Alice and Bob are playing a fun game of tree tag.
The game is played on a tree of n vertices numbered from 1 to n. Recall that a tree on n vertices is an undirected, connected graph with n-1 edges.
Initially, Alice is located at vertex a, ... | instruction | 0 | 67,469 | 13 | 134,938 |
Tags: dfs and similar, dp, games, trees
Correct Solution:
```
# -*- coding: utf-8 -*-
# import bisect
# import heapq
# import math
# import random
# from collections import Counter, defaultdict, deque
# from decimal import ROUND_CEILING, ROUND_HALF_UP, Decimal
# from fractions import Fraction
# from functools import lr... | output | 1 | 67,469 | 13 | 134,939 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Alice and Bob are playing a fun game of tree tag.
The game is played on a tree of n vertices numbered from 1 to n. Recall that a tree on n vertices is an undirected, connected graph with n-1 edges.
Initially, Alice is located at vertex a, ... | instruction | 0 | 67,470 | 13 | 134,940 |
Tags: dfs and similar, dp, games, trees
Correct Solution:
```
from collections import deque
T = int(input())
ans = ['Bob']*T
for t in range(T):
n,a,b,da,db = map(int, input().split())
a -= 1
b -= 1
edge = [[] for _ in range(n)]
for i in range(n-1):
u,v = map(int, input().split())
edge[u-1].append(v-1... | output | 1 | 67,470 | 13 | 134,941 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Alice and Bob are playing a fun game of tree tag.
The game is played on a tree of n vertices numbered from 1 to n. Recall that a tree on n vertices is an undirected, connected graph with n-1 edges.
Initially, Alice is located at vertex a, ... | instruction | 0 | 67,471 | 13 | 134,942 |
Tags: dfs and similar, dp, games, trees
Correct Solution:
```
import sys
from collections import deque as dq
input = sys.stdin.readline
for _ in range(int(input())):
N, a, b, da, db = map(int, input().split())
e = [[] for _ in range(N + 1)]
for _ in range(N - 1):
u, v = map(int, input().split())
e[u].appe... | output | 1 | 67,471 | 13 | 134,943 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Alice and Bob are playing a fun game of tree tag.
The game is played on a tree of n vertices numbered from 1 to n. Recall that a tree on n vertices is an undirected, connected graph with n-1 edges.
Initially, Alice is located at vertex a, ... | instruction | 0 | 67,472 | 13 | 134,944 |
Tags: dfs and similar, dp, games, trees
Correct Solution:
```
from sys import stdin
input = stdin.readline
q = int(input())
for _ in range(q):
n,sa,sb,a,b = map(int,input().split())
sa -=1
sb -=1
nbr = [[] for i in range(n)]
for i in range(n-1):
x, y = map(int,input().split())
x -= 1... | output | 1 | 67,472 | 13 | 134,945 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Alice and Bob are playing a fun game of tree tag.
The game is played on a tree of n vertices numbered from 1 to n. Recall that a tree on n vertices is an undirected, connected graph with n-1 edges.
Initially, Alice is located at vertex a, ... | instruction | 0 | 67,473 | 13 | 134,946 |
Tags: dfs and similar, dp, games, trees
Correct Solution:
```
import sys
ii = lambda: sys.stdin.readline().strip()
idata = lambda: [int(x) for x in ii().split()]
def bfs(graph, start_ver):
# ищет самую дальнюю вершину от данной вершины в данном графе,
# выводит эту вершину и длину пути до неё
visited = s... | output | 1 | 67,473 | 13 | 134,947 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Alice and Bob are playing a fun game of tree tag.
The game is played on a tree of n vertices numbered from 1 to n. Recall that a tree on n vertices is an undirected, connected graph with n-1 ed... | instruction | 0 | 67,474 | 13 | 134,948 |
Yes | output | 1 | 67,474 | 13 | 134,949 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Alice and Bob are playing a fun game of tree tag.
The game is played on a tree of n vertices numbered from 1 to n. Recall that a tree on n vertices is an undirected, connected graph with n-1 ed... | instruction | 0 | 67,475 | 13 | 134,950 |
Yes | output | 1 | 67,475 | 13 | 134,951 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Alice and Bob are playing a fun game of tree tag.
The game is played on a tree of n vertices numbered from 1 to n. Recall that a tree on n vertices is an undirected, connected graph with n-1 ed... | instruction | 0 | 67,476 | 13 | 134,952 |
Yes | output | 1 | 67,476 | 13 | 134,953 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Alice and Bob are playing a fun game of tree tag.
The game is played on a tree of n vertices numbered from 1 to n. Recall that a tree on n vertices is an undirected, connected graph with n-1 ed... | instruction | 0 | 67,477 | 13 | 134,954 |
Yes | output | 1 | 67,477 | 13 | 134,955 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Alice and Bob are playing a fun game of tree tag.
The game is played on a tree of n vertices numbered from 1 to n. Recall that a tree on n vertices is an undirected, connected graph with n-1 ed... | instruction | 0 | 67,478 | 13 | 134,956 |
No | output | 1 | 67,478 | 13 | 134,957 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Alice and Bob are playing a fun game of tree tag.
The game is played on a tree of n vertices numbered from 1 to n. Recall that a tree on n vertices is an undirected, connected graph with n-1 ed... | instruction | 0 | 67,479 | 13 | 134,958 |
No | output | 1 | 67,479 | 13 | 134,959 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Alice and Bob are playing a fun game of tree tag.
The game is played on a tree of n vertices numbered from 1 to n. Recall that a tree on n vertices is an undirected, connected graph with n-1 ed... | instruction | 0 | 67,480 | 13 | 134,960 |
No | output | 1 | 67,480 | 13 | 134,961 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Alice and Bob are playing a fun game of tree tag.
The game is played on a tree of n vertices numbered from 1 to n. Recall that a tree on n vertices is an undirected, connected graph with n-1 ed... | instruction | 0 | 67,481 | 13 | 134,962 |
No | output | 1 | 67,481 | 13 | 134,963 |
Provide tags and a correct Python 3 solution for this coding contest problem.
For a given sequence of distinct non-negative integers (b_1, b_2, ..., b_k) we determine if it is good in the following way:
* Consider a graph on k nodes, with numbers from b_1 to b_k written on them.
* For every i from 1 to k: find su... | instruction | 0 | 67,498 | 13 | 134,996 |
Tags: binary search, bitmasks, data structures, divide and conquer, dp, trees
Correct Solution:
```
import sys
try:sys.stdin,sys.stdout=open('in.txt','r'),open('out.txt','w')
except:pass
ii1=lambda:int(sys.stdin.readline().strip()) # for interger
is1=lambda:sys.stdin.readline().strip() # for str
iia=lambda:list(map(int... | output | 1 | 67,498 | 13 | 134,997 |
Provide tags and a correct Python 3 solution for this coding contest problem.
For a given sequence of distinct non-negative integers (b_1, b_2, ..., b_k) we determine if it is good in the following way:
* Consider a graph on k nodes, with numbers from b_1 to b_k written on them.
* For every i from 1 to k: find su... | instruction | 0 | 67,499 | 13 | 134,998 |
Tags: binary search, bitmasks, data structures, divide and conquer, dp, trees
Correct Solution:
```
import math
n = int(input())
A = list(map(int, input().split()))
A.sort()
def dfs(A):
if len(A) == 1: return 1
k = 1 << int(math.log2(A[0] ^ A[-1]))
for i, a in enumerate(A):
if a & k:
br... | output | 1 | 67,499 | 13 | 134,999 |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.