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 |
|---|---|---|---|---|---|
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Gardener Alex loves to grow trees. We remind that tree is a connected acyclic graph on n vertices.
Today he decided to grow a rooted binary tree. A binary tree is a tree where any vertex has n... | instruction | 0 | 24,859 | 13 | 49,718 |
No | output | 1 | 24,859 | 13 | 49,719 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Gardener Alex loves to grow trees. We remind that tree is a connected acyclic graph on n vertices.
Today he decided to grow a rooted binary tree. A binary tree is a tree where any vertex has n... | instruction | 0 | 24,860 | 13 | 49,720 |
No | output | 1 | 24,860 | 13 | 49,721 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Gardener Alex loves to grow trees. We remind that tree is a connected acyclic graph on n vertices.
Today he decided to grow a rooted binary tree. A binary tree is a tree where any vertex has n... | instruction | 0 | 24,861 | 13 | 49,722 |
No | output | 1 | 24,861 | 13 | 49,723 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Gardener Alex loves to grow trees. We remind that tree is a connected acyclic graph on n vertices.
Today he decided to grow a rooted binary tree. A binary tree is a tree where any vertex has n... | instruction | 0 | 24,862 | 13 | 49,724 |
No | output | 1 | 24,862 | 13 | 49,725 |
Provide tags and a correct Python 3 solution for this coding contest problem.
DZY loves planting, and he enjoys solving tree problems.
DZY has a weighted tree (connected undirected graph without cycles) containing n nodes (they are numbered from 1 to n). He defines the function g(x, y) (1 ≤ x, y ≤ n) as the longest e... | instruction | 0 | 25,097 | 13 | 50,194 |
Tags: binary search, dsu, trees
Correct Solution:
```
n = int(input())
edges = [[int(x) for x in input().split()] for i in range(n-1)]
edges = sorted(edges)
use_count = [0]+[int(input()) for i in range(n)]
lo,hi = 0,10000
def getpar(par,u):
if par[par[u]] == par[u]:
return par[u]
par[u] = getpar(par,par... | output | 1 | 25,097 | 13 | 50,195 |
Provide a correct Python 3 solution for this coding contest problem.
You are given an integer L. Construct a directed graph that satisfies the conditions below. The graph may contain multiple edges between the same pair of vertices. It can be proved that such a graph always exists.
* The number of vertices, N, is at ... | instruction | 0 | 25,401 | 13 | 50,802 |
"Correct Solution:
```
#18:55
l = int(input())
s = bin(l)[2:]
n = len(s)
m = 0
ans = []
for i in range(n-1):
ans.append([i+1,i+2,0])
ans.append([i+1,i+2,2**(n-2-i)])
m += 2
#print(ans,m)
imp = 2 ** (n-1)
for i in range(n-1,0,-1):
if s[i] == '1':
ans.append([1,i+1,imp])
m += 1
imp += 2 ** (n-1-i)
pri... | output | 1 | 25,401 | 13 | 50,803 |
Provide a correct Python 3 solution for this coding contest problem.
You are given an integer L. Construct a directed graph that satisfies the conditions below. The graph may contain multiple edges between the same pair of vertices. It can be proved that such a graph always exists.
* The number of vertices, N, is at ... | instruction | 0 | 25,402 | 13 | 50,804 |
"Correct Solution:
```
L = int(input())
n = L.bit_length()
ans = []
for i in range(1,n):
ans.append((i,i+1,0))
ans.append((i,i+1,2**(n-i-1)))
binL = bin(L)
for i in range(1,n):
if binL[i+2] == "1":
mask = int(binL[:i+2],2)<<(n-i)
ans.append((1,i+1,L&mask))
print(n,len(ans))
for edge in ans:
print(*edge)... | output | 1 | 25,402 | 13 | 50,805 |
Provide a correct Python 3 solution for this coding contest problem.
You are given an integer L. Construct a directed graph that satisfies the conditions below. The graph may contain multiple edges between the same pair of vertices. It can be proved that such a graph always exists.
* The number of vertices, N, is at ... | instruction | 0 | 25,403 | 13 | 50,806 |
"Correct Solution:
```
L = int(input())
k = L.bit_length()
ans = []
for i in range(1, k):
ans.append([i,i+1,0])
ans.append([i,i+1,1<<(k-i-1)])
for i in range(k-1):
if L & 1<<i:
mask = (1<<(k+1)) - (1<<(i+1))
w = L & mask
ans.append([1, k-i, w])
print(k, len(ans))
for i in ans:
... | output | 1 | 25,403 | 13 | 50,807 |
Provide a correct Python 3 solution for this coding contest problem.
You are given an integer L. Construct a directed graph that satisfies the conditions below. The graph may contain multiple edges between the same pair of vertices. It can be proved that such a graph always exists.
* The number of vertices, N, is at ... | instruction | 0 | 25,404 | 13 | 50,808 |
"Correct Solution:
```
import math
L = int(input())
s = int(math.log2(L))
N = s+1
count = 0
graph = []
for i in range(N-1,0,-1):
if L - 2 ** (i-1) >= 2 ** s:
graph.append([i, N ,L-2 ** (i-1)])
L = L - 2 ** (i-1)
count += 1
print(N, end = ' ')
print(2*(N-1)+count)
for i in range(N,1,-1):... | output | 1 | 25,404 | 13 | 50,809 |
Provide a correct Python 3 solution for this coding contest problem.
You are given an integer L. Construct a directed graph that satisfies the conditions below. The graph may contain multiple edges between the same pair of vertices. It can be proved that such a graph always exists.
* The number of vertices, N, is at ... | instruction | 0 | 25,405 | 13 | 50,810 |
"Correct Solution:
```
L=int(input())
count=0
k=1
max=0
LL=format(L,'b')
N=len(LL)
M=(len(LL)-1)*2+LL.count('1')-1
#print(LL)
print(N,M)
max=2**(N-1)-1
for n in range(1,N):
print(n,n+1,0)
print(n,n+1,k)
k*=2
if LL[::-1][n-1]=='1' and n!=N:
print(n,N,max+1)
max+=2**(n-1)
``` | output | 1 | 25,405 | 13 | 50,811 |
Provide a correct Python 3 solution for this coding contest problem.
You are given an integer L. Construct a directed graph that satisfies the conditions below. The graph may contain multiple edges between the same pair of vertices. It can be proved that such a graph always exists.
* The number of vertices, N, is at ... | instruction | 0 | 25,406 | 13 | 50,812 |
"Correct Solution:
```
import math
l = int(input()) - 1
n = int(math.log2(l + 1) + 1)
res = []
for i in range(n - 1):
res.append([i + 1, i + 2, 0])
res.append([i + 1, i + 2, 2 ** i])
i = n - 2
while l > 2 ** (n - 1) - 1:
t = l - 2 ** i + 1
if t > 2 ** (n - 1) - 1:
res.append([i + 1, n, t])
... | output | 1 | 25,406 | 13 | 50,813 |
Provide a correct Python 3 solution for this coding contest problem.
You are given an integer L. Construct a directed graph that satisfies the conditions below. The graph may contain multiple edges between the same pair of vertices. It can be proved that such a graph always exists.
* The number of vertices, N, is at ... | instruction | 0 | 25,407 | 13 | 50,814 |
"Correct Solution:
```
L = int(input())
p = 0
ans = []
while(L >= 2 ** (p + 1)):
ans.append([p + 1, p + 2, 2 ** p])
ans.append([p + 1, p + 2, 0])
p += 1
endN = p + 1
tmp = 2 ** p
L -= tmp
while(L != 0):
p = 0
while(L - 2 ** p >= 0):
p += 1
ans.append([p, endN, tmp])
L -= 2 ** (p... | output | 1 | 25,407 | 13 | 50,815 |
Provide a correct Python 3 solution for this coding contest problem.
You are given an integer L. Construct a directed graph that satisfies the conditions below. The graph may contain multiple edges between the same pair of vertices. It can be proved that such a graph always exists.
* The number of vertices, N, is at ... | instruction | 0 | 25,408 | 13 | 50,816 |
"Correct Solution:
```
# 頂点は0番から始まるとして、出力時に+1する
def graph(L):
beki = 1
for n in range(20):
beki *= 2
if beki > L: break
ans = []
Li = 1
for i in range(n):
ans += [(i + 1, i + 2, 0)]
ans += [(i + 1, i + 2, Li)]
Li *= 2
Lnext = Li
nokori_kosu = L - Li
... | output | 1 | 25,408 | 13 | 50,817 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given an integer L. Construct a directed graph that satisfies the conditions below. The graph may contain multiple edges between the same pair of vertices. It can be proved that such a g... | instruction | 0 | 25,409 | 13 | 50,818 |
Yes | output | 1 | 25,409 | 13 | 50,819 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given an integer L. Construct a directed graph that satisfies the conditions below. The graph may contain multiple edges between the same pair of vertices. It can be proved that such a g... | instruction | 0 | 25,410 | 13 | 50,820 |
Yes | output | 1 | 25,410 | 13 | 50,821 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given an integer L. Construct a directed graph that satisfies the conditions below. The graph may contain multiple edges between the same pair of vertices. It can be proved that such a g... | instruction | 0 | 25,411 | 13 | 50,822 |
Yes | output | 1 | 25,411 | 13 | 50,823 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given an integer L. Construct a directed graph that satisfies the conditions below. The graph may contain multiple edges between the same pair of vertices. It can be proved that such a g... | instruction | 0 | 25,412 | 13 | 50,824 |
Yes | output | 1 | 25,412 | 13 | 50,825 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given an integer L. Construct a directed graph that satisfies the conditions below. The graph may contain multiple edges between the same pair of vertices. It can be proved that such a g... | instruction | 0 | 25,413 | 13 | 50,826 |
No | output | 1 | 25,413 | 13 | 50,827 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given an integer L. Construct a directed graph that satisfies the conditions below. The graph may contain multiple edges between the same pair of vertices. It can be proved that such a g... | instruction | 0 | 25,414 | 13 | 50,828 |
No | output | 1 | 25,414 | 13 | 50,829 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given an integer L. Construct a directed graph that satisfies the conditions below. The graph may contain multiple edges between the same pair of vertices. It can be proved that such a g... | instruction | 0 | 25,415 | 13 | 50,830 |
No | output | 1 | 25,415 | 13 | 50,831 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given an integer L. Construct a directed graph that satisfies the conditions below. The graph may contain multiple edges between the same pair of vertices. It can be proved that such a g... | instruction | 0 | 25,416 | 13 | 50,832 |
No | output | 1 | 25,416 | 13 | 50,833 |
Provide a correct Python 3 solution for this coding contest problem.
Examples
Input
4 5 2
0 1 2 1
0 2 1 2
1 2 1 1
1 3 1 3
2 3 2 1
Output
6
Input
Output | instruction | 0 | 25,567 | 13 | 51,134 |
"Correct Solution:
```
import os
import sys
from collections import defaultdict
import heapq
if os.getenv("LOCAL"):
sys.stdin = open("_in.txt", "r")
sys.setrecursionlimit(2147483647)
INF = float("inf")
IINF = 10 ** 18
MOD = 10 ** 9 + 7
"""
最小費用流
http://judge.u-aizu.ac.jp/onlinejudge/description.jsp?id=GRL_6_B&l... | output | 1 | 25,567 | 13 | 51,135 |
Provide a correct Python 3 solution for this coding contest problem.
Examples
Input
4 5 2
0 1 2 1
0 2 1 2
1 2 1 1
1 3 1 3
2 3 2 1
Output
6
Input
Output | instruction | 0 | 25,568 | 13 | 51,136 |
"Correct Solution:
```
import heapq
class MinCostFlow:
class Edge:
def __init__(self,to,cap,rev,cost):
self.to = to
self.cap = cap
self.rev = rev
self.cost = cost
def __init__(self,n,inf=1000000007):
self.n = n
self.inf = inf
self... | output | 1 | 25,568 | 13 | 51,137 |
Provide a correct Python 3 solution for this coding contest problem.
Examples
Input
4 5 2
0 1 2 1
0 2 1 2
1 2 1 1
1 3 1 3
2 3 2 1
Output
6
Input
Output | instruction | 0 | 25,570 | 13 | 51,140 |
"Correct Solution:
```
#!/usr/bin/env python3
# GRL_6_B: Minimum Cost Flow
WEIGHT_MAX = 10 ** 10
class Edge:
__slots__ = ('src', 'dest', 'capacity', 'flow', 'cost')
def __init__(self, v, w, capacity, cost=0):
self.src = v
self.dest = w
self.capacity = capacity
self.cost = co... | output | 1 | 25,570 | 13 | 51,141 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Examples
Input
4 5 2
0 1 2 1
0 2 1 2
1 2 1 1
1 3 1 3
2 3 2 1
Output
6
Input
Output
Submitted Solution:
```
import heapq as hp
class MinimumCostFlow():
def __init__(self, N, INF=1... | instruction | 0 | 25,573 | 13 | 51,146 |
Yes | output | 1 | 25,573 | 13 | 51,147 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a tree consisting of n nodes. You generate an array from the tree by marking nodes one by one.
Initially, when no nodes are marked, a node is equiprobably chosen and marked from the entire tree.
After that, until all nodes a... | instruction | 0 | 25,858 | 13 | 51,716 |
Tags: brute force, combinatorics, dp, graphs, math, probabilities, trees
Correct Solution:
```
def naiveSolve():
return
def floyd_warshall(n, edges):
dist = [[0 if i == j else float("inf") for i in range(n)] for j in range(n)]
for u, v, d in edges:
dist[u][v] = d
for k in rang... | output | 1 | 25,858 | 13 | 51,717 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a tree consisting of n nodes. You generate an array from the tree by marking nodes one by one.
Initially, when no nodes are marked, a node is equiprobably chosen and marked from the entire tree.
After that, until all nodes a... | instruction | 0 | 25,859 | 13 | 51,718 |
Tags: brute force, combinatorics, dp, graphs, math, probabilities, trees
Correct Solution:
```
from collections import deque
MOD = 10 ** 9 + 7;N = 1000;fact = [0 for _ in range(N)];invfact = [0 for _ in range(N)];fact[0] = 1
for i in range(1, N):fact[i] = fact[i - 1] * i % MOD
invfact[N - 1] = pow(fact[N - 1], MOD - 2,... | output | 1 | 25,859 | 13 | 51,719 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a tree consisting of n nodes. You generate an array from the tree by marking nodes one by one.
Initially, when no nodes are marked, a node is equiprobably chosen and marked from the entire tree.
After that, until all nodes a... | instruction | 0 | 25,860 | 13 | 51,720 |
Tags: brute force, combinatorics, dp, graphs, math, probabilities, trees
Correct Solution:
```
import bisect
import copy
import decimal
import fractions
import heapq
import itertools
import math
import random
import sys
from collections import Counter, deque,defaultdict
from functools import lru_cache,reduce
from heapq... | output | 1 | 25,860 | 13 | 51,721 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a tree consisting of n nodes. You generate an array from the tree by marking nodes one by one.
Initially, when no nodes are marked, a node is equiprobably chosen and marked from the entire tree.
After that, until all nodes a... | instruction | 0 | 25,861 | 13 | 51,722 |
Tags: brute force, combinatorics, dp, graphs, math, probabilities, trees
Correct Solution:
```
def naiveSolve():
return
MOD=int(1e9+7)
def getNumDivDenMOD(num,den): # return (a/b)%MOD
a,b=num,den
return ((a%MOD)*pow(b,MOD-2,MOD))%MOD
m=201
dp=[[0 for _ in range(m)] for __ in range(m)]
# dp... | output | 1 | 25,861 | 13 | 51,723 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a tree consisting of n nodes. You generate an array from the tree by marking nodes one by one.
Initially, when no nodes are marked, a node is equiprobably chosen and marked from the entire tree.
After that, until all nodes a... | instruction | 0 | 25,862 | 13 | 51,724 |
Tags: brute force, combinatorics, dp, graphs, math, probabilities, trees
Correct Solution:
```
def naiveSolve():
return
MOD=int(1e9+7)
def getNumDivDenMOD(num,den): # return (a/b)%MOD
a,b=num,den
return ((a%MOD)*pow(b,MOD-2,MOD))%MOD
m=201
dp=[[0 for _ in range(m)] for __ in range(m)]
# dp... | output | 1 | 25,862 | 13 | 51,725 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a tree consisting of n nodes. You generate an array from the tree by marking nodes one by one.
Initially, when no nodes are marked, a node is equiprobably chosen and marked from the entire tree.
After that, until all nodes a... | instruction | 0 | 25,863 | 13 | 51,726 |
Tags: brute force, combinatorics, dp, graphs, math, probabilities, trees
Correct Solution:
```
from collections import deque
MOD = 10 ** 9 + 7;N = 1000;fact = [0 for _ in range(N)];invfact = [0 for _ in range(N)];fact[0] = 1
for i in range(1, N):fact[i] = fact[i - 1] * i % MOD
invfact[N - 1] = pow(fact[N - 1], MOD - 2,... | output | 1 | 25,863 | 13 | 51,727 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a tree consisting of n nodes. You generate an array from the tree by marking nodes one by one.
Initially, when no nodes are marked, a node is equiprobably chosen and marked from the entire tree.
After that, until all nodes a... | instruction | 0 | 25,864 | 13 | 51,728 |
Tags: brute force, combinatorics, dp, graphs, math, probabilities, trees
Correct Solution:
```
from functools import lru_cache
from collections import deque
M = 10 ** 9 + 7
def inv(x):
return pow(x, M - 2, M)
@lru_cache(None)
def dp(u, v):
# u before v
if u == 0:
return 0
if v == 0:
... | output | 1 | 25,864 | 13 | 51,729 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a tree consisting of n nodes. You generate an array from the tree by marking nodes one by one.
Initially, when no nodes are marked, a node is equiprobably chosen and marked from the entire tree.
After that, until all nodes a... | instruction | 0 | 25,865 | 13 | 51,730 |
Tags: brute force, combinatorics, dp, graphs, math, probabilities, trees
Correct Solution:
```
from functools import lru_cache
M = 10 ** 9 + 7
@lru_cache(5)
def inv(x):
return pow(x, M - 2, M)
@lru_cache(None)
def dp(u, v):
# u before v
if u == 0:
return 0
if v == 0:
return 1
re... | output | 1 | 25,865 | 13 | 51,731 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a tree consisting of n nodes. You generate an array from the tree by marking nodes one by one.
Initially, when no nodes are marked, a node is equiprobably chosen and marked from t... | instruction | 0 | 25,866 | 13 | 51,732 |
Yes | output | 1 | 25,866 | 13 | 51,733 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a tree consisting of n nodes. You generate an array from the tree by marking nodes one by one.
Initially, when no nodes are marked, a node is equiprobably chosen and marked from t... | instruction | 0 | 25,867 | 13 | 51,734 |
Yes | output | 1 | 25,867 | 13 | 51,735 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a tree consisting of n nodes. You generate an array from the tree by marking nodes one by one.
Initially, when no nodes are marked, a node is equiprobably chosen and marked from t... | instruction | 0 | 25,868 | 13 | 51,736 |
Yes | output | 1 | 25,868 | 13 | 51,737 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a tree consisting of n nodes. You generate an array from the tree by marking nodes one by one.
Initially, when no nodes are marked, a node is equiprobably chosen and marked from t... | instruction | 0 | 25,869 | 13 | 51,738 |
Yes | output | 1 | 25,869 | 13 | 51,739 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a tree consisting of n nodes. You generate an array from the tree by marking nodes one by one.
Initially, when no nodes are marked, a node is equiprobably chosen and marked from t... | instruction | 0 | 25,870 | 13 | 51,740 |
No | output | 1 | 25,870 | 13 | 51,741 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a tree consisting of n nodes. You generate an array from the tree by marking nodes one by one.
Initially, when no nodes are marked, a node is equiprobably chosen and marked from t... | instruction | 0 | 25,871 | 13 | 51,742 |
No | output | 1 | 25,871 | 13 | 51,743 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a tree with N vertices numbered 1, 2, ..., N. The i-th edge connects Vertex a_i and Vertex b_i. You are also given a string S of length N consisting of `0` and `1`. The i-th character of S represents the number of pieces placed on Verte... | instruction | 0 | 26,277 | 13 | 52,554 |
"Correct Solution:
```
import sys
sys.setrecursionlimit(10000)
input = sys.stdin.readline
def f(v, vs):
kminmax = 0
r = 0
rkoma = 0
fff = 0
ffmx = 0
for u in d[v]:
if u in vs:
continue
vs.add(u)
k1, koma, ff = f(u, vs)
if k1 > kminmax:
kmi... | output | 1 | 26,277 | 13 | 52,555 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a tree with N vertices numbered 1, 2, ..., N. The i-th edge connects Vertex a_i and Vertex b_i. You are also given a string S of length N consisting of `0` and `1`. The i-th character of S represents the number of pieces placed on Verte... | instruction | 0 | 26,278 | 13 | 52,556 |
"Correct Solution:
```
import sys
from heapq import nlargest
sys.setrecursionlimit(10000)
def first_dfs(v, p, stones, dists, costs):
stone = s[v]
dist = 0
cost = 0
children_dists = []
for u in links[v]:
if u == p:
continue
us, ud, uc = first_dfs(u, v, stones, dists, co... | output | 1 | 26,278 | 13 | 52,557 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a tree with N vertices numbered 1, 2, ..., N. The i-th edge connects Vertex a_i and Vertex b_i. You are also given a string S of length N consisting of `0` and `1`. The i-th character of S represents the number of pieces placed on Verte... | instruction | 0 | 26,279 | 13 | 52,558 |
"Correct Solution:
```
import sys
input = sys.stdin.readline
sys.setrecursionlimit(10000000)
n=int(input())
s=list(map(int,list(input()[:-1])))
edge=[[]for _ in range(n)]
for _ in range(n-1):
a,b=map(int,input().split())
a-=1
b-=1
edge[a].append(b)
edge[b].append(a)
def f(lrc):
l1,r1,c1,x1=lrc[0]
for l2,r... | output | 1 | 26,279 | 13 | 52,559 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a tree with N vertices numbered 1, 2, ..., N. The i-th edge connects Vertex a_i and Vertex b_i. You are also given a string S of length N consisting of `0` and `1`. The i-th character of S represents the number of pieces placed on Verte... | instruction | 0 | 26,280 | 13 | 52,560 |
"Correct Solution:
```
from collections import deque
N=int(input())
S=input()
edge=[[] for i in range(N)]
for i in range(N-1):
a,b=map(int,input().split())
edge[a-1].append(b-1)
edge[b-1].append(a-1)
depth=[0]*N
num=[0]*N
sd=[0]*N
a=10**18
for i in range(N):
depth=[0]*N
num=[0]*N
sd=[0]*N
... | output | 1 | 26,280 | 13 | 52,561 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a tree with N vertices numbered 1, 2, ..., N. The i-th edge connects Vertex a_i and Vertex b_i. You are also given a string S of length N consisting of `0` and `1`. The i-th character of S represents the number of pieces placed on Verte... | instruction | 0 | 26,281 | 13 | 52,562 |
"Correct Solution:
```
import sys
readline = sys.stdin.readline
def parorder(Edge, p):
N = len(Edge)
dist = [None]*N
dist[p] = 0
par = [0]*N
par[p] = -1
stack = [p]
order = []
visited = set([p])
ast = stack.append
apo = order.append
while stack:
vn = stack.pop()
... | output | 1 | 26,281 | 13 | 52,563 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a tree with N vertices numbered 1, 2, ..., N. The i-th edge connects Vertex a_i and Vertex b_i. You are also given a string S of length N consisting of `0` and `1`. The i-th character of S represents the number of pieces placed on Verte... | instruction | 0 | 26,282 | 13 | 52,564 |
"Correct Solution:
```
import sys
from collections import deque
input = sys.stdin.readline
sys.setrecursionlimit(2000)
N = int(input())
for K in range(12) :
if 2 ** K >= N :
break
S = input()
path = [[] for _ in range(N)]
for _ in range(N-1) :
a, b = map(int, input().split())
path[a-1].append(b-1... | output | 1 | 26,282 | 13 | 52,565 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a tree with N vertices numbered 1, 2, ..., N. The i-th edge connects Vertex a_i and Vertex b_i. You are also given a string S of length N consisting of `0` and `1`. The i-th character of S represents the number of pieces placed on Verte... | instruction | 0 | 26,283 | 13 | 52,566 |
"Correct Solution:
```
from collections import deque
n=int(input())
S=list(input())
G=[[] for i in range(n)]
for i in range(n-1):
a,b=map(int,input().split())
G[a-1].append(b-1)
G[b-1].append(a-1)
ans=10**10
AAA=10**10
for i in range(n):#根
D=deque([i])
A=[i]
V=[0]*n
V[i]=1
C=[[] for i in range(n)]
whi... | output | 1 | 26,283 | 13 | 52,567 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a tree with N vertices numbered 1, 2, ..., N. The i-th edge connects Vertex a_i and Vertex b_i. You are also given a string S of length N consisting of `0` and `1`. The i-th character of S represents the number of pieces placed on Verte... | instruction | 0 | 26,284 | 13 | 52,568 |
"Correct Solution:
```
import sys
input = sys.stdin.readline
n = int(input())
s = "Q"+input()
ab = [list(map(int,input().split())) for i in range(n-1)]
graph = [[] for i in range(n+1)]
deg = [0 for i in range(n+1)]
for a,b in ab:
graph[a].append(b)
graph[b].append(a)
deg[a] += 1
deg[b] += 1
leaf = set()
for i i... | output | 1 | 26,284 | 13 | 52,569 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a tree with N vertices numbered 1, 2, ..., N. The i-th edge connects Vertex a_i and Vertex b_i. You are also given a string S of length N consisting of `0` and `1`. The i-th charac... | instruction | 0 | 26,285 | 13 | 52,570 |
Yes | output | 1 | 26,285 | 13 | 52,571 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a tree with N vertices numbered 1, 2, ..., N. The i-th edge connects Vertex a_i and Vertex b_i. You are also given a string S of length N consisting of `0` and `1`. The i-th charac... | instruction | 0 | 26,286 | 13 | 52,572 |
Yes | output | 1 | 26,286 | 13 | 52,573 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a tree with N vertices numbered 1, 2, ..., N. The i-th edge connects Vertex a_i and Vertex b_i. You are also given a string S of length N consisting of `0` and `1`. The i-th charac... | instruction | 0 | 26,287 | 13 | 52,574 |
Yes | output | 1 | 26,287 | 13 | 52,575 |
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