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.
You are given a tree T with N vertices and an undirected graph G with N vertices and M edges. The vertices of each graph are numbered 1 to N. The i-th of the N-1 edges in T connects Vertex a_i a... | instruction | 0 | 13,159 | 13 | 26,318 |
No | output | 1 | 13,159 | 13 | 26,319 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Valera had an undirected connected graph without self-loops and multiple edges consisting of n vertices. The graph had an interesting property: there were at most k edges adjacent to each of its vertices. For convenience, we will assume that... | instruction | 0 | 13,625 | 13 | 27,250 |
Tags: dfs and similar, graphs, sortings
Correct Solution:
```
import sys
import itertools as it
import math as mt
import collections as cc
import bisect as bi
input=sys.stdin.readline
I=lambda:list(map(int,input().split()))
n,k=I()
l=I()
ar=[]
f=cc.defaultdict(list)
ch=cc.defaultdict(int)
for i in range(n):
ar.append(... | output | 1 | 13,625 | 13 | 27,251 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Valera had an undirected connected graph without self-loops and multiple edges consisting of n vertices. The graph had an interesting property: there were at most k edges adjacent to each of its vertices. For convenience, we will assume that... | instruction | 0 | 13,626 | 13 | 27,252 |
Tags: dfs and similar, graphs, sortings
Correct Solution:
```
n, k = map(int, input().split())
d = zip(list(map(int, input().split())), range(1, n + 1))
d = sorted(d)
if d[0][0] != 0:
print(-1)
else:
u = 0
m = 0
check = True
graph = []
deg = [0]*(n + 1)
for v in range(1, n):
... | output | 1 | 13,626 | 13 | 27,253 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Valera had an undirected connected graph without self-loops and multiple edges consisting of n vertices. The graph had an interesting property: there were at most k edges adjacent to each of its vertices. For convenience, we will assume that... | instruction | 0 | 13,627 | 13 | 27,254 |
Tags: dfs and similar, graphs, sortings
Correct Solution:
```
class RestoreGraph():
def __init__(self,n, k, dis_values):
self.dis_values = dis_values
self.n = n
self.k = k
def generate_graph(self):
dis_pairs = [(self.dis_values[i],i) for i in range(len(self.dis_values))]
... | output | 1 | 13,627 | 13 | 27,255 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Valera had an undirected connected graph without self-loops and multiple edges consisting of n vertices. The graph had an interesting property: there were at most k edges adjacent to each of its vertices. For convenience, we will assume that... | instruction | 0 | 13,628 | 13 | 27,256 |
Tags: dfs and similar, graphs, sortings
Correct Solution:
```
n, k = map(int, input().split())
d = zip(list(map(int, input().split())), range(1, n + 1))
d = sorted(d)
if d[0][0] != 0:
print(-1)
else:
u = 0
check = True
graph = []
deg = [0]*(n + 1)
for v in range(1, n):
if deg[d[u][1]... | output | 1 | 13,628 | 13 | 27,257 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Valera had an undirected connected graph without self-loops and multiple edges consisting of n vertices. The graph had an interesting property: there were at most k edges adjacent to each of its vertices. For convenience, we will assume that... | instruction | 0 | 13,629 | 13 | 27,258 |
Tags: dfs and similar, graphs, sortings
Correct Solution:
```
n, k = map(int, input().split())
t = list(map(int, input().split()))
s, p = [], [[] for i in range(max(t) + 1)]
for i, j in enumerate(t, 1): p[j].append(str(i))
if len(p[0]) - 1: print('-1')
else:
for i in range(1, len(p)):
if k * len(p[i - 1]) <... | output | 1 | 13,629 | 13 | 27,259 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Valera had an undirected connected graph without self-loops and multiple edges consisting of n vertices. The graph had an interesting property: there were at most k edges adjacent to each of its vertices. For convenience, we will assume that... | instruction | 0 | 13,630 | 13 | 27,260 |
Tags: dfs and similar, graphs, sortings
Correct Solution:
```
# by the authority of GOD author: manhar singh sachdev #
import os,sys
from io import BytesIO, IOBase
def main():
n,k = map(int,input().split())
d = list(map(int,input().split()))
cou = [[] for _ in range(n)]
for i in range(n):
... | output | 1 | 13,630 | 13 | 27,261 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Valera had an undirected connected graph without self-loops and multiple edges consisting of n vertices. The graph had an interesting property: there were at most k edges adjacent to each of its vertices. For convenience, we will assume that... | instruction | 0 | 13,631 | 13 | 27,262 |
Tags: dfs and similar, graphs, sortings
Correct Solution:
```
import sys
n, k = map(int, input().split())
a = [int(i) for i in input().split()]
g = [k] * n
maxi = max(a)
ans = []
if a.count(0) != 1:
print(-1)
sys.exit()
i = 1
f = a.index(0)
pref_t = [f]
x = [[] for y in range(maxi + 1)]
for v in range(n):
x... | output | 1 | 13,631 | 13 | 27,263 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Valera had an undirected connected graph without self-loops and multiple edges consisting of n vertices. The graph had an interesting property: there were at most k edges adjacent to each of its vertices. For convenience, we will assume that... | instruction | 0 | 13,632 | 13 | 27,264 |
Tags: dfs and similar, graphs, sortings
Correct Solution:
```
from math import ceil
def mkgr(n, srs, k):
res = [str(n-1)]
for d in srs[1]:
res.append("%i %i" % (srs[0][0]+1, d+1))
for i in range(2, len(srs)):
h, hs= 0, 0
for j in range(len(srs[i])):
res.append("%i %i" % (srs[i][j]+1, srs[i-1][h... | output | 1 | 13,632 | 13 | 27,265 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Valera had an undirected connected graph without self-loops and multiple edges consisting of n vertices. The graph had an interesting property: there were at most k edges adjacent to each of its... | instruction | 0 | 13,633 | 13 | 27,266 |
Yes | output | 1 | 13,633 | 13 | 27,267 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Valera had an undirected connected graph without self-loops and multiple edges consisting of n vertices. The graph had an interesting property: there were at most k edges adjacent to each of its... | instruction | 0 | 13,634 | 13 | 27,268 |
Yes | output | 1 | 13,634 | 13 | 27,269 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Valera had an undirected connected graph without self-loops and multiple edges consisting of n vertices. The graph had an interesting property: there were at most k edges adjacent to each of its... | instruction | 0 | 13,635 | 13 | 27,270 |
Yes | output | 1 | 13,635 | 13 | 27,271 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Valera had an undirected connected graph without self-loops and multiple edges consisting of n vertices. The graph had an interesting property: there were at most k edges adjacent to each of its... | instruction | 0 | 13,636 | 13 | 27,272 |
Yes | output | 1 | 13,636 | 13 | 27,273 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Valera had an undirected connected graph without self-loops and multiple edges consisting of n vertices. The graph had an interesting property: there were at most k edges adjacent to each of its... | instruction | 0 | 13,637 | 13 | 27,274 |
No | output | 1 | 13,637 | 13 | 27,275 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Valera had an undirected connected graph without self-loops and multiple edges consisting of n vertices. The graph had an interesting property: there were at most k edges adjacent to each of its... | instruction | 0 | 13,638 | 13 | 27,276 |
No | output | 1 | 13,638 | 13 | 27,277 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Valera had an undirected connected graph without self-loops and multiple edges consisting of n vertices. The graph had an interesting property: there were at most k edges adjacent to each of its... | instruction | 0 | 13,639 | 13 | 27,278 |
No | output | 1 | 13,639 | 13 | 27,279 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Valera had an undirected connected graph without self-loops and multiple edges consisting of n vertices. The graph had an interesting property: there were at most k edges adjacent to each of its... | instruction | 0 | 13,640 | 13 | 27,280 |
No | output | 1 | 13,640 | 13 | 27,281 |
Provide tags and a correct Python 3 solution for this coding contest problem.
ZS the Coder has drawn an undirected graph of n vertices numbered from 0 to n - 1 and m edges between them. Each edge of the graph is weighted, each weight is a positive integer.
The next day, ZS the Coder realized that some of the weights ... | instruction | 0 | 13,763 | 13 | 27,526 |
Tags: binary search, constructive algorithms, graphs, shortest paths
Correct Solution:
```
from collections import defaultdict
MAX = 10 ** 14
def Dijkstra(graph, s, n):
visited = [False] * n
d = [MAX] * n
parents = {}
d[s] = 0
for i in range(n):
_, v = min((d[j], j) for j in range... | output | 1 | 13,763 | 13 | 27,527 |
Provide tags and a correct Python 3 solution for this coding contest problem.
ZS the Coder has drawn an undirected graph of n vertices numbered from 0 to n - 1 and m edges between them. Each edge of the graph is weighted, each weight is a positive integer.
The next day, ZS the Coder realized that some of the weights ... | instruction | 0 | 13,764 | 13 | 27,528 |
Tags: binary search, constructive algorithms, graphs, shortest paths
Correct Solution:
```
import heapq
from collections import defaultdict
class Graph:
def __init__(self, n):
self.nodes = set(range(n))
self.edges = defaultdict(list)
self.distances = {}
def add_edge(self, from_node, t... | output | 1 | 13,764 | 13 | 27,529 |
Provide tags and a correct Python 3 solution for this coding contest problem.
ZS the Coder has drawn an undirected graph of n vertices numbered from 0 to n - 1 and m edges between them. Each edge of the graph is weighted, each weight is a positive integer.
The next day, ZS the Coder realized that some of the weights ... | instruction | 0 | 13,765 | 13 | 27,530 |
Tags: binary search, constructive algorithms, graphs, shortest paths
Correct Solution:
```
from collections import defaultdict
MAX_WEIGHT = 10 ** 14
def compute_path(graph, s, n):
visited = [False] * n
distances = [MAX_WEIGHT] * n
ancestors = {}
distances[s] = 0
for i in range(n):
_, v = m... | output | 1 | 13,765 | 13 | 27,531 |
Provide tags and a correct Python 3 solution for this coding contest problem.
ZS the Coder has drawn an undirected graph of n vertices numbered from 0 to n - 1 and m edges between them. Each edge of the graph is weighted, each weight is a positive integer.
The next day, ZS the Coder realized that some of the weights ... | instruction | 0 | 13,766 | 13 | 27,532 |
Tags: binary search, constructive algorithms, graphs, shortest paths
Correct Solution:
```
from collections import defaultdict
MAX = 10 ** 14
def Dijkstra(graph, s, n):
visited = [False] * n
d = [MAX] * n
parents = {}
d[s] = 0
for i in range(n):
_, v = min((d[j], j) for j in range... | output | 1 | 13,766 | 13 | 27,533 |
Provide tags and a correct Python 3 solution for this coding contest problem.
ZS the Coder has drawn an undirected graph of n vertices numbered from 0 to n - 1 and m edges between them. Each edge of the graph is weighted, each weight is a positive integer.
The next day, ZS the Coder realized that some of the weights ... | instruction | 0 | 13,767 | 13 | 27,534 |
Tags: binary search, constructive algorithms, graphs, shortest paths
Correct Solution:
```
import heapq
from collections import defaultdict
class Graph:
def __init__(self, n):
self.nodes = set(range(n))
self.edges = defaultdict(list)
self.distances = {}
def add_edge(self, from_node, t... | output | 1 | 13,767 | 13 | 27,535 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
ZS the Coder has drawn an undirected graph of n vertices numbered from 0 to n - 1 and m edges between them. Each edge of the graph is weighted, each weight is a positive integer.
The next day, ... | instruction | 0 | 13,768 | 13 | 27,536 |
No | output | 1 | 13,768 | 13 | 27,537 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
ZS the Coder has drawn an undirected graph of n vertices numbered from 0 to n - 1 and m edges between them. Each edge of the graph is weighted, each weight is a positive integer.
The next day, ... | instruction | 0 | 13,769 | 13 | 27,538 |
No | output | 1 | 13,769 | 13 | 27,539 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
ZS the Coder has drawn an undirected graph of n vertices numbered from 0 to n - 1 and m edges between them. Each edge of the graph is weighted, each weight is a positive integer.
The next day, ... | instruction | 0 | 13,770 | 13 | 27,540 |
No | output | 1 | 13,770 | 13 | 27,541 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
ZS the Coder has drawn an undirected graph of n vertices numbered from 0 to n - 1 and m edges between them. Each edge of the graph is weighted, each weight is a positive integer.
The next day, ... | instruction | 0 | 13,771 | 13 | 27,542 |
No | output | 1 | 13,771 | 13 | 27,543 |
Provide a correct Python 3 solution for this coding contest problem.
We have a tree with N vertices numbered 1 to N. The i-th edge in the tree connects Vertex u_i and Vertex v_i, and its length is w_i. Your objective is to paint each vertex in the tree white or black (it is fine to paint all vertices the same color) s... | instruction | 0 | 13,953 | 13 | 27,906 |
"Correct Solution:
```
N, = map(int, input().split())
import sys
sys.setrecursionlimit(10**6)
d = [set() for _ in range(N+1)]
Cs = [0 for _ in range(N+1)]
for _ in range(N-1):
u, v, p = map(int, input().split())
d[u].add((v, p))
d[v].add((u, p))
def it(v, p):
for u, c in d[v]:
if u == p:
... | output | 1 | 13,953 | 13 | 27,907 |
Provide a correct Python 3 solution for this coding contest problem.
We have a tree with N vertices numbered 1 to N. The i-th edge in the tree connects Vertex u_i and Vertex v_i, and its length is w_i. Your objective is to paint each vertex in the tree white or black (it is fine to paint all vertices the same color) s... | instruction | 0 | 13,954 | 13 | 27,908 |
"Correct Solution:
```
n=int(input())
edges=[[] for i in range(n)]
import sys
sys.setrecursionlimit(10**7)
for i in range(n-1):
a,s,w=map(int,input().split())
edges[a-1].append([s-1,w]);edges[s-1].append([a-1,w])
colors=[-1]*n
colors[0]=1
def dfs(now):
for to,cost in edges[now]:
if colors[to]==-1:
... | output | 1 | 13,954 | 13 | 27,909 |
Provide a correct Python 3 solution for this coding contest problem.
We have a tree with N vertices numbered 1 to N. The i-th edge in the tree connects Vertex u_i and Vertex v_i, and its length is w_i. Your objective is to paint each vertex in the tree white or black (it is fine to paint all vertices the same color) s... | instruction | 0 | 13,955 | 13 | 27,910 |
"Correct Solution:
```
(n,),*t=[map(int,t.split())for t in open(0)]
*e,=eval('[],'*-~n)
q=[(1,0)]
f=[-1]*n
for v,w,c in t:e[v]+=(w,c),;e[w]+=(v,c),
for v,c in q:
f[v-1]=c&1
for w,d in e[v]:q+=[(w,c+d)]*(f[w-1]<0)
print(*f)
``` | output | 1 | 13,955 | 13 | 27,911 |
Provide a correct Python 3 solution for this coding contest problem.
We have a tree with N vertices numbered 1 to N. The i-th edge in the tree connects Vertex u_i and Vertex v_i, and its length is w_i. Your objective is to paint each vertex in the tree white or black (it is fine to paint all vertices the same color) s... | instruction | 0 | 13,956 | 13 | 27,912 |
"Correct Solution:
```
n=int(input())
q=[[] for i in range(n+1)]
for i in range(n-1):
a,b,c=map(int,input().split())
q[a].append((b,c))
q[b].append((a,c))
l=[-1]*n
s=[(1,0)]
while s:
a,w=s.pop()
l[a-1]=w%2
for b,c in q[a]:
if l[b-1]==-1:
s.append((b,w+c))
for i in l:
pr... | output | 1 | 13,956 | 13 | 27,913 |
Provide a correct Python 3 solution for this coding contest problem.
We have a tree with N vertices numbered 1 to N. The i-th edge in the tree connects Vertex u_i and Vertex v_i, and its length is w_i. Your objective is to paint each vertex in the tree white or black (it is fine to paint all vertices the same color) s... | instruction | 0 | 13,957 | 13 | 27,914 |
"Correct Solution:
```
N = int(input())
adj = [[] for _ in range(N)]
for i in range(N-1):
u,v,w = map(int,input().split())
u,v = u-1, v-1
w %= 2
adj[u].append((v,w))
adj[v].append((u,w))
color = [None]*N
color[0] = False
stack = [0]
while stack:
u = stack.pop()
for v,w in adj[u]:
... | output | 1 | 13,957 | 13 | 27,915 |
Provide a correct Python 3 solution for this coding contest problem.
We have a tree with N vertices numbered 1 to N. The i-th edge in the tree connects Vertex u_i and Vertex v_i, and its length is w_i. Your objective is to paint each vertex in the tree white or black (it is fine to paint all vertices the same color) s... | instruction | 0 | 13,958 | 13 | 27,916 |
"Correct Solution:
```
def solve():
from collections import deque
n,*l=map(int,open(0).read().split())
con=[[] for _ in range(n)]
dist=[-1]*n
dist[0]=0
for a,b,c in zip(*[iter(l)]*3):
con[a-1].append((b-1,c%2))
con[b-1].append((a-1,c%2))
stk=deque([0])
while stk:
cur=stk.pop()
for nxt,d in con[cur]:
... | output | 1 | 13,958 | 13 | 27,917 |
Provide a correct Python 3 solution for this coding contest problem.
We have a tree with N vertices numbered 1 to N. The i-th edge in the tree connects Vertex u_i and Vertex v_i, and its length is w_i. Your objective is to paint each vertex in the tree white or black (it is fine to paint all vertices the same color) s... | instruction | 0 | 13,959 | 13 | 27,918 |
"Correct Solution:
```
import sys
sys.setrecursionlimit(10**9)
n = int(input())
T = [[] for _ in range(n)]
for _ in range(n-1):
u,v,w = map(int,input().split())
u -= 1
v -= 1
w %= 2
T[u].append((v,w))
T[v].append((u,w))
ans = [0]*n
def dfs(u,p=-1,c=0):
for v,w in T[u]:
if v == p: co... | output | 1 | 13,959 | 13 | 27,919 |
Provide a correct Python 3 solution for this coding contest problem.
We have a tree with N vertices numbered 1 to N. The i-th edge in the tree connects Vertex u_i and Vertex v_i, and its length is w_i. Your objective is to paint each vertex in the tree white or black (it is fine to paint all vertices the same color) s... | instruction | 0 | 13,960 | 13 | 27,920 |
"Correct Solution:
```
N=int(input())
links=[set() for _ in [0]*N]
for i in range(1,N):
u,v,w=map(int,input().split())
u-=1
v-=1
links[u].add((v,w))
links[v].add((u,w))
ans=[-1]*N
q=[(0,0,-1)]
while q:
v,d,p=q.pop()
if d%2==0:
ans[v]=0
else:
ans[v]=1
for u,w in links[v]:
if u==p:
con... | output | 1 | 13,960 | 13 | 27,921 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
We have a tree with N vertices numbered 1 to N. The i-th edge in the tree connects Vertex u_i and Vertex v_i, and its length is w_i. Your objective is to paint each vertex in the tree white or b... | instruction | 0 | 13,961 | 13 | 27,922 |
Yes | output | 1 | 13,961 | 13 | 27,923 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
We have a tree with N vertices numbered 1 to N. The i-th edge in the tree connects Vertex u_i and Vertex v_i, and its length is w_i. Your objective is to paint each vertex in the tree white or b... | instruction | 0 | 13,962 | 13 | 27,924 |
Yes | output | 1 | 13,962 | 13 | 27,925 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
We have a tree with N vertices numbered 1 to N. The i-th edge in the tree connects Vertex u_i and Vertex v_i, and its length is w_i. Your objective is to paint each vertex in the tree white or b... | instruction | 0 | 13,963 | 13 | 27,926 |
Yes | output | 1 | 13,963 | 13 | 27,927 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
We have a tree with N vertices numbered 1 to N. The i-th edge in the tree connects Vertex u_i and Vertex v_i, and its length is w_i. Your objective is to paint each vertex in the tree white or b... | instruction | 0 | 13,964 | 13 | 27,928 |
Yes | output | 1 | 13,964 | 13 | 27,929 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
We have a tree with N vertices numbered 1 to N. The i-th edge in the tree connects Vertex u_i and Vertex v_i, and its length is w_i. Your objective is to paint each vertex in the tree white or b... | instruction | 0 | 13,965 | 13 | 27,930 |
No | output | 1 | 13,965 | 13 | 27,931 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
We have a tree with N vertices numbered 1 to N. The i-th edge in the tree connects Vertex u_i and Vertex v_i, and its length is w_i. Your objective is to paint each vertex in the tree white or b... | instruction | 0 | 13,966 | 13 | 27,932 |
No | output | 1 | 13,966 | 13 | 27,933 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
We have a tree with N vertices numbered 1 to N. The i-th edge in the tree connects Vertex u_i and Vertex v_i, and its length is w_i. Your objective is to paint each vertex in the tree white or b... | instruction | 0 | 13,967 | 13 | 27,934 |
No | output | 1 | 13,967 | 13 | 27,935 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
We have a tree with N vertices numbered 1 to N. The i-th edge in the tree connects Vertex u_i and Vertex v_i, and its length is w_i. Your objective is to paint each vertex in the tree white or b... | instruction | 0 | 13,968 | 13 | 27,936 |
No | output | 1 | 13,968 | 13 | 27,937 |
Provide a correct Python 3 solution for this coding contest problem.
There is a tree with N vertices. The vertices are numbered 1 through N. The i-th edge (1 \leq i \leq N - 1) connects Vertex x_i and y_i. For vertices v and w (1 \leq v, w \leq N), we will define the distance between v and w d(v, w) as "the number of ... | instruction | 0 | 14,001 | 13 | 28,002 |
"Correct Solution:
```
from collections import defaultdict
import sys
sys.setrecursionlimit(10 ** 6)
int1 = lambda x: int(x) - 1
p2D = lambda x: print(*x, sep="\n")
def main():
def k_fix_way(com_n, com_r):
if (com_n, com_r) in kmemo:
return kmemo[(com_n, com_r)]
res = kmemo[(com_n, com... | output | 1 | 14,001 | 13 | 28,003 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There is a tree with N vertices. The vertices are numbered 1 through N. The i-th edge (1 \leq i \leq N - 1) connects Vertex x_i and y_i. For vertices v and w (1 \leq v, w \leq N), we will define... | instruction | 0 | 14,002 | 13 | 28,004 |
No | output | 1 | 14,002 | 13 | 28,005 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There is a tree with N vertices. The vertices are numbered 1 through N. The i-th edge (1 \leq i \leq N - 1) connects Vertex x_i and y_i. For vertices v and w (1 \leq v, w \leq N), we will define... | instruction | 0 | 14,003 | 13 | 28,006 |
No | output | 1 | 14,003 | 13 | 28,007 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There is a tree with N vertices. The vertices are numbered 1 through N. The i-th edge (1 \leq i \leq N - 1) connects Vertex x_i and y_i. For vertices v and w (1 \leq v, w \leq N), we will define... | instruction | 0 | 14,004 | 13 | 28,008 |
No | output | 1 | 14,004 | 13 | 28,009 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There is a tree with N vertices. The vertices are numbered 1 through N. The i-th edge (1 \leq i \leq N - 1) connects Vertex x_i and y_i. For vertices v and w (1 \leq v, w \leq N), we will define... | instruction | 0 | 14,005 | 13 | 28,010 |
No | output | 1 | 14,005 | 13 | 28,011 |
Provide a correct Python 3 solution for this coding contest problem.
There is a tree with N vertices, numbered 1 through N. The i-th edge in this tree connects Vertices A_i and B_i and has a length of C_i.
Joisino created a complete graph with N vertices. The length of the edge connecting Vertices u and v in this gra... | instruction | 0 | 14,006 | 13 | 28,012 |
"Correct Solution:
```
import sys
input = sys.stdin.readline
from collections import defaultdict
n = int(input())
abd = [list(map(int,input().split())) for i in range(n-1)]
if n == 2:
print(abd[0][2])
exit()
graph = [[] for i in range(n+1)]
deg = [0 for i in range(n+1)]
for a,b,d in abd:
graph[a].append((b,d))
... | output | 1 | 14,006 | 13 | 28,013 |
Provide a correct Python 3 solution for this coding contest problem.
There is a tree with N vertices, numbered 1 through N. The i-th edge in this tree connects Vertices A_i and B_i and has a length of C_i.
Joisino created a complete graph with N vertices. The length of the edge connecting Vertices u and v in this gra... | instruction | 0 | 14,007 | 13 | 28,014 |
"Correct Solution:
```
import sys
readline = sys.stdin.readline
readlines = sys.stdin.readlines
sys.setrecursionlimit(10**7)
N = int(readline())
ABC = (tuple(int(x) for x in line.split()) for line in readlines())
graph = [[] for _ in range(N+1)]
for a,b,c in ABC:
a -= 1; b -= 1
graph[a].append((b,c))
gra... | output | 1 | 14,007 | 13 | 28,015 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There is a tree with N vertices, numbered 1 through N. The i-th edge in this tree connects Vertices A_i and B_i and has a length of C_i.
Joisino created a complete graph with N vertices. The le... | instruction | 0 | 14,008 | 13 | 28,016 |
No | output | 1 | 14,008 | 13 | 28,017 |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.