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.
For a rooted tree, find the lowest common ancestor of two nodes u and v.
The given tree consists of n nodes and every node has a unique ID from 0 to n-1 where 0 is the root.
Constraints
* 1 ≤... | instruction | 0 | 5,007 | 13 | 10,014 |
Yes | output | 1 | 5,007 | 13 | 10,015 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
For a rooted tree, find the lowest common ancestor of two nodes u and v.
The given tree consists of n nodes and every node has a unique ID from 0 to n-1 where 0 is the root.
Constraints
* 1 ≤... | instruction | 0 | 5,008 | 13 | 10,016 |
Yes | output | 1 | 5,008 | 13 | 10,017 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
For a rooted tree, find the lowest common ancestor of two nodes u and v.
The given tree consists of n nodes and every node has a unique ID from 0 to n-1 where 0 is the root.
Constraints
* 1 ≤... | instruction | 0 | 5,009 | 13 | 10,018 |
No | output | 1 | 5,009 | 13 | 10,019 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
For a rooted tree, find the lowest common ancestor of two nodes u and v.
The given tree consists of n nodes and every node has a unique ID from 0 to n-1 where 0 is the root.
Constraints
* 1 ≤... | instruction | 0 | 5,010 | 13 | 10,020 |
No | output | 1 | 5,010 | 13 | 10,021 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
For a rooted tree, find the lowest common ancestor of two nodes u and v.
The given tree consists of n nodes and every node has a unique ID from 0 to n-1 where 0 is the root.
Constraints
* 1 ≤... | instruction | 0 | 5,011 | 13 | 10,022 |
No | output | 1 | 5,011 | 13 | 10,023 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
For a rooted tree, find the lowest common ancestor of two nodes u and v.
The given tree consists of n nodes and every node has a unique ID from 0 to n-1 where 0 is the root.
Constraints
* 1 ≤... | instruction | 0 | 5,012 | 13 | 10,024 |
No | output | 1 | 5,012 | 13 | 10,025 |
Provide tags and a correct Python 3 solution for this coding contest problem.
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu...
Whereas on the other end of the world Pentagon is actively collecting info... | instruction | 0 | 5,029 | 13 | 10,058 |
Tags: dfs and similar, dsu, graphs
Correct Solution:
```
N, M = map(int, input().split())
g = [[] for i in range(N)]
for i in range(M):
a, b = map(int, input().split())
g[a-1].append(b-1)
g[b-1].append(a-1)
visited = [0] * N
def dfs(n):
global visn
visited[n] = 1
for i in g[n]:
if not... | output | 1 | 5,029 | 13 | 10,059 |
Provide tags and a correct Python 3 solution for this coding contest problem.
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu...
Whereas on the other end of the world Pentagon is actively collecting info... | instruction | 0 | 5,030 | 13 | 10,060 |
Tags: dfs and similar, dsu, graphs
Correct Solution:
```
n, m = [int(i) for i in input().split()]
c = [int(i) for i in range(n+1)]
def find (u):
if u == c[u]:
return u
c[u] = find(c[u])
return c[u]
ciclos = 0
for i in range(m):
x, y = [int(j) for j in input().split()]
x = find(x)
y = f... | output | 1 | 5,030 | 13 | 10,061 |
Provide tags and a correct Python 3 solution for this coding contest problem.
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu...
Whereas on the other end of the world Pentagon is actively collecting info... | instruction | 0 | 5,031 | 13 | 10,062 |
Tags: dfs and similar, dsu, graphs
Correct Solution:
```
inp = input().split()
n = int(inp[0])
m = int(inp[1])
def dfs(x):
f.add(x)
for y in e[x]:
if not y in f:
dfs(y)
if n >= 3 and n == m:
e, f = [[] for i in range(n + 1)], set()
for j in range(m):
... | output | 1 | 5,031 | 13 | 10,063 |
Provide tags and a correct Python 3 solution for this coding contest problem.
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu...
Whereas on the other end of the world Pentagon is actively collecting info... | instruction | 0 | 5,032 | 13 | 10,064 |
Tags: dfs and similar, dsu, graphs
Correct Solution:
```
class Graph():
def __init__(self, number_nodes):
self.nodes = [0] * (number_nodes+1)
for i in range(number_nodes):
self.nodes[i+1] = Node(i+1)
def connect(self, node_1, node_2):
self.find(node_1).neighbors.appe... | output | 1 | 5,032 | 13 | 10,065 |
Provide tags and a correct Python 3 solution for this coding contest problem.
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu...
Whereas on the other end of the world Pentagon is actively collecting info... | instruction | 0 | 5,033 | 13 | 10,066 |
Tags: dfs and similar, dsu, graphs
Correct Solution:
```
lectura=lambda:map(int, input().split())
nVertices, nEdges= lectura()
array1= [[] for i in range(nVertices + 1)]
array2=[]
for i in range(0, nEdges):
x, y= lectura()
array1[x].append(y)
array1[y].append(x)
def DFS(x):
array2.append(x)
for y in... | output | 1 | 5,033 | 13 | 10,067 |
Provide tags and a correct Python 3 solution for this coding contest problem.
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu...
Whereas on the other end of the world Pentagon is actively collecting info... | instruction | 0 | 5,034 | 13 | 10,068 |
Tags: dfs and similar, dsu, graphs
Correct Solution:
```
# Problem from Codeforces
# http://codeforces.com/problemset/problem/103/B
parent = dict()
ranks = dict()
def make_set(N):
global parent, ranks
parent = [i for i in range(N + 5)]
ranks = [0 for i in range(N + 5)]
def find_set(u):
if parent[u... | output | 1 | 5,034 | 13 | 10,069 |
Provide tags and a correct Python 3 solution for this coding contest problem.
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu...
Whereas on the other end of the world Pentagon is actively collecting info... | instruction | 0 | 5,035 | 13 | 10,070 |
Tags: dfs and similar, dsu, graphs
Correct Solution:
```
n, m = map(int, input().split())
if n < 3 or n != m: # minimo 3 vertices para un circulo
print("NO") # todo vertice debe tener un edge
else:
V = []
S = []
for i in range(n+1): #Armado de lista para conexiones de vertices
V.append([]... | output | 1 | 5,035 | 13 | 10,071 |
Provide tags and a correct Python 3 solution for this coding contest problem.
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu...
Whereas on the other end of the world Pentagon is actively collecting info... | instruction | 0 | 5,036 | 13 | 10,072 |
Tags: dfs and similar, dsu, graphs
Correct Solution:
```
def dfs(u):
vis[u]=1
for v in adj[u]:
if vis[v]==0:
dfs(v)
n,m=map(int,input().split())
vis=[0]*n
adj=[[] for w in range(n)]
for i in range (m):
u,v = map(int,input().split())
u-=1
v-=1
adj[u].append(v)
adj[v].append(u)
cnt=0
for i in range(0,... | output | 1 | 5,036 | 13 | 10,073 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu...
Whereas on the other end of... | instruction | 0 | 5,037 | 13 | 10,074 |
Yes | output | 1 | 5,037 | 13 | 10,075 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu...
Whereas on the other end of... | instruction | 0 | 5,038 | 13 | 10,076 |
Yes | output | 1 | 5,038 | 13 | 10,077 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu...
Whereas on the other end of... | instruction | 0 | 5,039 | 13 | 10,078 |
Yes | output | 1 | 5,039 | 13 | 10,079 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu...
Whereas on the other end of... | instruction | 0 | 5,040 | 13 | 10,080 |
Yes | output | 1 | 5,040 | 13 | 10,081 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu...
Whereas on the other end of... | instruction | 0 | 5,041 | 13 | 10,082 |
No | output | 1 | 5,041 | 13 | 10,083 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu...
Whereas on the other end of... | instruction | 0 | 5,042 | 13 | 10,084 |
No | output | 1 | 5,042 | 13 | 10,085 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu...
Whereas on the other end of... | instruction | 0 | 5,043 | 13 | 10,086 |
No | output | 1 | 5,043 | 13 | 10,087 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu...
Whereas on the other end of... | instruction | 0 | 5,044 | 13 | 10,088 |
No | output | 1 | 5,044 | 13 | 10,089 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Petya loves lucky numbers. We all know that lucky numbers are the positive integers whose decimal representations contain only the lucky digits 4 and 7. For example, numbers 47, 744, 4 are lucky and 5, 17, 467 are not.
One day Petya encount... | instruction | 0 | 5,825 | 13 | 11,650 |
Tags: dp, dsu, trees
Correct Solution:
```
import os
import sys
from io import BytesIO, IOBase
from types import GeneratorType
from collections import defaultdict
BUFSIZE = 8192
class FastIO(IOBase):
newlines = 0
def __init__(self, file):
self._fd = file.fileno()
self.buffer = BytesIO()
... | output | 1 | 5,825 | 13 | 11,651 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Petya loves lucky numbers. We all know that lucky numbers are the positive integers whose decimal representations contain only the lucky digits 4 and 7. For example, numbers 47, 744, 4 are lucky... | instruction | 0 | 5,826 | 13 | 11,652 |
No | output | 1 | 5,826 | 13 | 11,653 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Vova and Marina love offering puzzles to each other. Today Marina offered Vova to cope with the following task.
Vova has a non-directed graph consisting of n vertices and m edges without loops and multiple edges. Let's define the operation ... | instruction | 0 | 6,193 | 13 | 12,386 |
Tags: graphs, shortest paths
Correct Solution:
```
# lista doble enlazada o(1) operaciones en los bordes es mejor que si se implementa en el propio lenguaje
from collections import deque
def solve():
n, m = input().split()
n = int(n)
m = int(m)
global maxValue
maxValue = n*2
graph = [[] for _ ... | output | 1 | 6,193 | 13 | 12,387 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Vova and Marina love offering puzzles to each other. Today Marina offered Vova to cope with the following task.
Vova has a non-directed graph consisting of n vertices and m edges without loops and multiple edges. Let's define the operation ... | instruction | 0 | 6,194 | 13 | 12,388 |
Tags: graphs, shortest paths
Correct Solution:
```
# lista doble enlazada o(1) operaciones en los bordes es mejor que si se implementa en el propio lenguaje
from collections import deque
def solve():
global n, m
n, m = map(lambda x: int(x), input().split())
global maxVal
maxVal = n**2
graph = [[] ... | output | 1 | 6,194 | 13 | 12,389 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Vova and Marina love offering puzzles to each other. Today Marina offered Vova to cope with the following task.
Vova has a non-directed graph consisting of n vertices and m edges without loops and multiple edges. Let's define the operation ... | instruction | 0 | 6,195 | 13 | 12,390 |
Tags: graphs, shortest paths
Correct Solution:
```
def solve():
n, m = input().split()
n = int(n)
m = int(m)
global maxValue
maxValue = n*2
graph = [[] for _ in range(0, n)]
edges = []
diameters = []
for _ in range(0, m):
u, v = input().split()
u = int(u)-1
v ... | output | 1 | 6,195 | 13 | 12,391 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Vova and Marina love offering puzzles to each other. Today Marina offered Vova to cope with the following task.
Vova has a non-directed graph consisting of n vertices and m edges without loops and multiple edges. Let's define the operation ... | instruction | 0 | 6,196 | 13 | 12,392 |
Tags: graphs, shortest paths
Correct Solution:
```
n, m = map(int, input().split())
g = [[] for _ in range(n)]
for i in range(m):
p, q = map(int, input().split())
g[p - 1].append(q - 1)
g[q - 1].append(p - 1)
comp = [-1] * n
def shortest(root):
dist = [-1] * n
q = [0] * n
left, right = 0, 1
... | output | 1 | 6,196 | 13 | 12,393 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Vova and Marina love offering puzzles to each other. Today Marina offered Vova to cope with the following task.
Vova has a non-directed graph consisting of n vertices and m edges without loops and multiple edges. Let's define the operation ... | instruction | 0 | 6,197 | 13 | 12,394 |
Tags: graphs, shortest paths
Correct Solution:
```
# lista doble enlazada o(1) operaciones en los bordes es mejor que si se implementa en el propio lenguaje
from collections import deque
def solve():
n, m = input().split()
n = int(n)
m = int(m)
global maxValue
maxValue = n*2
graph = [[] for _ ... | output | 1 | 6,197 | 13 | 12,395 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Vova and Marina love offering puzzles to each other. Today Marina offered Vova to cope with the following task.
Vova has a non-directed graph consisting of n vertices and m edges without loops and multiple edges. Let's define the operation ... | instruction | 0 | 6,198 | 13 | 12,396 |
Tags: graphs, shortest paths
Correct Solution:
```
# lista doble enlazada o(1) operaciones en los bordes es mejor que si se implementa en el propio lenguaje
from collections import deque
def solve():
n, m = input().split()
n = int(n)
m = int(m)
global maxValue
maxValue = n*2
graph = [[] for _ ... | output | 1 | 6,198 | 13 | 12,397 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Vova and Marina love offering puzzles to each other. Today Marina offered Vova to cope with the following task.
Vova has a non-directed graph consisting of n vertices and m edges without loops and multiple edges. Let's define the operation ... | instruction | 0 | 6,199 | 13 | 12,398 |
Tags: graphs, shortest paths
Correct Solution:
```
from collections import deque
def solve():
global n, m
n, m = map(lambda x: int(x), input().split())
global maxVal
maxVal = n**2
graph = [[] for _ in range(0, n)]
for _ in range(0, m):
u, v = map(lambda x: int(x)-1, input().split())
... | output | 1 | 6,199 | 13 | 12,399 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Vova and Marina love offering puzzles to each other. Today Marina offered Vova to cope with the following task.
Vova has a non-directed graph consisting of n vertices and m edges without loops and multiple edges. Let's define the operation ... | instruction | 0 | 6,200 | 13 | 12,400 |
Tags: graphs, shortest paths
Correct Solution:
```
n, m = map(int, input().split())
g = [[] for _ in range(n)]
for i in range(m):
p, q = map(int, input().split())
g[p - 1].append(q - 1)
g[q - 1].append(p - 1)
comp = [-1] * n
def shortest(root):
dist = [-1] * n
q = [0] * n
left, right = 0, 1
... | output | 1 | 6,200 | 13 | 12,401 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Vova and Marina love offering puzzles to each other. Today Marina offered Vova to cope with the following task.
Vova has a non-directed graph consisting of n vertices and m edges without loops ... | instruction | 0 | 6,201 | 13 | 12,402 |
No | output | 1 | 6,201 | 13 | 12,403 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Vova and Marina love offering puzzles to each other. Today Marina offered Vova to cope with the following task.
Vova has a non-directed graph consisting of n vertices and m edges without loops ... | instruction | 0 | 6,202 | 13 | 12,404 |
No | output | 1 | 6,202 | 13 | 12,405 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Vova and Marina love offering puzzles to each other. Today Marina offered Vova to cope with the following task.
Vova has a non-directed graph consisting of n vertices and m edges without loops ... | instruction | 0 | 6,203 | 13 | 12,406 |
No | output | 1 | 6,203 | 13 | 12,407 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Vova and Marina love offering puzzles to each other. Today Marina offered Vova to cope with the following task.
Vova has a non-directed graph consisting of n vertices and m edges without loops ... | instruction | 0 | 6,204 | 13 | 12,408 |
No | output | 1 | 6,204 | 13 | 12,409 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a tree (a connected undirected graph without cycles) of n vertices. Each of the n - 1 edges of the tree is colored in either black or red.
You are also given an integer k. Consider sequences of k vertices. Let's call a sequenc... | instruction | 0 | 6,612 | 13 | 13,224 |
Tags: dfs and similar, dsu, graphs, math, trees
Correct Solution:
```
# -*- coding: utf-8 -*-
# @Date : 2019-03-22 08:08:26
# @Author : raj lath (oorja.halt@gmail.com)
# @Link : link
# @Version : 1.0.0
import sys
sys.setrecursionlimit(10**5+1)
inf = int(10 ** 20)
max_val = inf
min_val = -inf
RW = lamb... | output | 1 | 6,612 | 13 | 13,225 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a tree (a connected undirected graph without cycles) of n vertices. Each of the n - 1 edges of the tree is colored in either black or red.
You are also given an integer k. Consider sequences of k vertices. Let's call a sequenc... | instruction | 0 | 6,613 | 13 | 13,226 |
Tags: dfs and similar, dsu, graphs, math, trees
Correct Solution:
```
def factorial(n):
if n == 0:
return 1
else:
return (n * factorial(n-1))%(10**9+7)
n, k = [int(i) for i in input().split()]
s = [[] for i in range(n)]
for i in range(n-1):
a,b,c = [int(i) for i in input().split()]
i... | output | 1 | 6,613 | 13 | 13,227 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a tree (a connected undirected graph without cycles) of n vertices. Each of the n - 1 edges of the tree is colored in either black or red.
You are also given an integer k. Consider sequences of k vertices. Let's call a sequenc... | instruction | 0 | 6,614 | 13 | 13,228 |
Tags: dfs and similar, dsu, graphs, math, trees
Correct Solution:
```
from collections import Counter
modulo = 10**9 + 7
def pow(a, n):
res = 1
while n:
#print('pow:', a, res, n)
if n & 1:
res *= a
res %= modulo
a *= a
a %= modulo
n //= 2
return res
n, k = map(int, input().split())
links = [[i] fo... | output | 1 | 6,614 | 13 | 13,229 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a tree (a connected undirected graph without cycles) of n vertices. Each of the n - 1 edges of the tree is colored in either black or red.
You are also given an integer k. Consider sequences of k vertices. Let's call a sequenc... | instruction | 0 | 6,615 | 13 | 13,230 |
Tags: dfs and similar, dsu, graphs, math, trees
Correct Solution:
```
# 1-indexed verticies
import sys
sys.setrecursionlimit(10 ** 5 + 10)
n, k = map(int, input().split())
parents = [i for i in range(n + 1)]
size = [1 for i in range(n + 1)]
def find(a):
if a == parents[a]:
return a
parents[a] = find(parents[a])... | output | 1 | 6,615 | 13 | 13,231 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a tree (a connected undirected graph without cycles) of n vertices. Each of the n - 1 edges of the tree is colored in either black or red.
You are also given an integer k. Consider sequences of k vertices. Let's call a sequenc... | instruction | 0 | 6,616 | 13 | 13,232 |
Tags: dfs and similar, dsu, graphs, math, trees
Correct Solution:
```
from collections import defaultdict as dd
def dfs(s, tree, visited):
stack = []
if s not in visited:
stack.append(s)
ccsize = 0
while stack:
v = stack.pop()
ccsize+=1
if v not in visited:
vi... | output | 1 | 6,616 | 13 | 13,233 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a tree (a connected undirected graph without cycles) of n vertices. Each of the n - 1 edges of the tree is colored in either black or red.
You are also given an integer k. Consider sequences of k vertices. Let's call a sequenc... | instruction | 0 | 6,617 | 13 | 13,234 |
Tags: dfs and similar, dsu, graphs, math, trees
Correct Solution:
```
from collections import deque
mod = 10**9 + 7
class TreeNode:
def __init__(self, val):
self.val = val
self.edges = {}
def add_edge(self, node, color):
self.edges[node] = color
n, k = map(int, input().split())
tree... | output | 1 | 6,617 | 13 | 13,235 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a tree (a connected undirected graph without cycles) of n vertices. Each of the n - 1 edges of the tree is colored in either black or red.
You are also given an integer k. Consider sequences of k vertices. Let's call a sequenc... | instruction | 0 | 6,618 | 13 | 13,236 |
Tags: dfs and similar, dsu, graphs, math, trees
Correct Solution:
```
def dfs(x, p):
vertex = 1
vis[x] = True
for i in graph[x].keys():
if not vis[i]:
vertex += dfs(i, x)
return vertex
n, k = map(int, input().split())
answer = pow(n, k)
vis = [False for _ in range(n+1)]
graph = [{... | output | 1 | 6,618 | 13 | 13,237 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a tree (a connected undirected graph without cycles) of n vertices. Each of the n - 1 edges of the tree is colored in either black or red.
You are also given an integer k. Consider sequences of k vertices. Let's call a sequenc... | instruction | 0 | 6,619 | 13 | 13,238 |
Tags: dfs and similar, dsu, graphs, math, trees
Correct Solution:
```
import sys, os, io
def rs(): return sys.stdin.readline().rstrip()
def ri(): return int(sys.stdin.readline())
def ria(): return list(map(int, sys.stdin.readline().split()))
def ws(s): sys.stdout.write(s + '\n')
def wi(n): sys.stdout.write(str(n) + '\n... | output | 1 | 6,619 | 13 | 13,239 |
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 (a connected undirected graph without cycles) of n vertices. Each of the n - 1 edges of the tree is colored in either black or red.
You are also given an integer k. Conside... | instruction | 0 | 6,620 | 13 | 13,240 |
Yes | output | 1 | 6,620 | 13 | 13,241 |
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 (a connected undirected graph without cycles) of n vertices. Each of the n - 1 edges of the tree is colored in either black or red.
You are also given an integer k. Conside... | instruction | 0 | 6,621 | 13 | 13,242 |
Yes | output | 1 | 6,621 | 13 | 13,243 |
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 (a connected undirected graph without cycles) of n vertices. Each of the n - 1 edges of the tree is colored in either black or red.
You are also given an integer k. Conside... | instruction | 0 | 6,622 | 13 | 13,244 |
Yes | output | 1 | 6,622 | 13 | 13,245 |
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 (a connected undirected graph without cycles) of n vertices. Each of the n - 1 edges of the tree is colored in either black or red.
You are also given an integer k. Conside... | instruction | 0 | 6,623 | 13 | 13,246 |
Yes | output | 1 | 6,623 | 13 | 13,247 |
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 (a connected undirected graph without cycles) of n vertices. Each of the n - 1 edges of the tree is colored in either black or red.
You are also given an integer k. Conside... | instruction | 0 | 6,624 | 13 | 13,248 |
No | output | 1 | 6,624 | 13 | 13,249 |
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 (a connected undirected graph without cycles) of n vertices. Each of the n - 1 edges of the tree is colored in either black or red.
You are also given an integer k. Conside... | instruction | 0 | 6,625 | 13 | 13,250 |
No | output | 1 | 6,625 | 13 | 13,251 |
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