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 tags and a correct Python 3 solution for this coding contest problem.
Vasya has got an undirected graph consisting of n vertices and m edges. This graph doesn't contain any self-loops or multiple edges. Self-loop is an edge connecting a vertex to itself. Multiple edges are a pair of edges such that they connec... | instruction | 0 | 60,658 | 13 | 121,316 |
Tags: constructive algorithms, graphs
Correct Solution:
```
ls = input().split()
n = int(ls[0])
m = int(ls[1])
minv = n - (2*m)
minv = max(0, minv)
maxv = 0
for i in range(n):
if i*(i-1)/2 >= m:
maxv = n-i
break
print(minv, maxv)
``` | output | 1 | 60,658 | 13 | 121,317 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Vasya has got an undirected graph consisting of n vertices and m edges. This graph doesn't contain any self-loops or multiple edges. Self-loop is an edge connecting a vertex to itself. Multiple edges are a pair of edges such that they connec... | instruction | 0 | 60,659 | 13 | 121,318 |
Tags: constructive algorithms, graphs
Correct Solution:
```
a,b=list(map(int,input().split()))
k=0
n=1
while(n<=b):
n=n+k
k=k+1
max=a-k
min=a-2*b
if(min<0):
min=0
print(min,max)
``` | output | 1 | 60,659 | 13 | 121,319 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Vasya has got an undirected graph consisting of n vertices and m edges. This graph doesn't contain any self-loops or multiple edges. Self-loop is an edge connecting a vertex to itself. Multiple edges are a pair of edges such that they connec... | instruction | 0 | 60,660 | 13 | 121,320 |
Tags: constructive algorithms, graphs
Correct Solution:
```
v, e = map(int, input().split())
def minv(v, e):
if v - 2*e < 0:
return 0
else:
return v - 2*e
def maxv(v, e):
ans = 0
if e == 0:
return v
for i in range(2, v):
ans = ans + i - 1
if ans >= e:
... | output | 1 | 60,660 | 13 | 121,321 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Vasya has got an undirected graph consisting of n vertices and m edges. This graph doesn't contain any self-loops or multiple edges. Self-loop is an edge connecting a vertex to itself. Multiple edges are a pair of edges such that they connec... | instruction | 0 | 60,661 | 13 | 121,322 |
Tags: constructive algorithms, graphs
Correct Solution:
```
import math
x=input()
x=x.split()
n=int(x[0])
m=int(x[1])
if m>=n/2:
min=0
else:
min=n-2*m
max=n-math.ceil((2*m+(2*m)**(1/2))**(1/2))
print(str(min)+" "+str(max))
``` | output | 1 | 60,661 | 13 | 121,323 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Vasya has got an undirected graph consisting of n vertices and m edges. This graph doesn't contain any self-loops or multiple edges. Self-loop is an edge connecting a vertex to itself. Multiple edges are a pair of edges such that they connec... | instruction | 0 | 60,662 | 13 | 121,324 |
Tags: constructive algorithms, graphs
Correct Solution:
```
#constructive algorithm, graph
#Self-loop is not a cycle :xD
from math import sqrt,ceil
n,m = map(int, input().split())
Min = n - 2*m
Min = max(0,Min)
Max = int(n - ceil((1 + sqrt(1+8*m))/ 2))
Max = max(0,Max)
if(m==0):
Min = Max = n
print(Min, Max)
``` | output | 1 | 60,662 | 13 | 121,325 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Vasya has got an undirected graph consisting of n vertices and m edges. This graph doesn't contain any self-loops or multiple edges. Self-loop is an edge connecting a vertex to itself. Multiple edges are a pair of edges such that they connec... | instruction | 0 | 60,663 | 13 | 121,326 |
Tags: constructive algorithms, graphs
Correct Solution:
```
#JMD
#Nagendra Jha-4096
import sys
import math
#import fractions
#import numpy
###File Operations###
fileoperation=0
if(fileoperation):
orig_stdout = sys.stdout
orig_stdin = sys.stdin
inputfile = open('W:/Competitive Programming/input.txt', '... | output | 1 | 60,663 | 13 | 121,327 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Vasya has got an undirected graph consisting of n vertices and m edges. This graph doesn't contain any self-loops or multiple edges. Self-loop is an edge connecting a vertex to itself. Multiple ... | instruction | 0 | 60,664 | 13 | 121,328 |
Yes | output | 1 | 60,664 | 13 | 121,329 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Vasya has got an undirected graph consisting of n vertices and m edges. This graph doesn't contain any self-loops or multiple edges. Self-loop is an edge connecting a vertex to itself. Multiple ... | instruction | 0 | 60,665 | 13 | 121,330 |
Yes | output | 1 | 60,665 | 13 | 121,331 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Vasya has got an undirected graph consisting of n vertices and m edges. This graph doesn't contain any self-loops or multiple edges. Self-loop is an edge connecting a vertex to itself. Multiple ... | instruction | 0 | 60,666 | 13 | 121,332 |
Yes | output | 1 | 60,666 | 13 | 121,333 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Vasya has got an undirected graph consisting of n vertices and m edges. This graph doesn't contain any self-loops or multiple edges. Self-loop is an edge connecting a vertex to itself. Multiple ... | instruction | 0 | 60,667 | 13 | 121,334 |
Yes | output | 1 | 60,667 | 13 | 121,335 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Vasya has got an undirected graph consisting of n vertices and m edges. This graph doesn't contain any self-loops or multiple edges. Self-loop is an edge connecting a vertex to itself. Multiple ... | instruction | 0 | 60,668 | 13 | 121,336 |
No | output | 1 | 60,668 | 13 | 121,337 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Vasya has got an undirected graph consisting of n vertices and m edges. This graph doesn't contain any self-loops or multiple edges. Self-loop is an edge connecting a vertex to itself. Multiple ... | instruction | 0 | 60,669 | 13 | 121,338 |
No | output | 1 | 60,669 | 13 | 121,339 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Vasya has got an undirected graph consisting of n vertices and m edges. This graph doesn't contain any self-loops or multiple edges. Self-loop is an edge connecting a vertex to itself. Multiple ... | instruction | 0 | 60,670 | 13 | 121,340 |
No | output | 1 | 60,670 | 13 | 121,341 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Vasya has got an undirected graph consisting of n vertices and m edges. This graph doesn't contain any self-loops or multiple edges. Self-loop is an edge connecting a vertex to itself. Multiple ... | instruction | 0 | 60,671 | 13 | 121,342 |
No | output | 1 | 60,671 | 13 | 121,343 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an undirected unweighted connected graph consisting of n vertices and m edges. It is guaranteed that there are no self-loops or multiple edges in the given graph.
Your task is to find any spanning tree of this graph such that ... | instruction | 0 | 60,673 | 13 | 121,346 |
Tags: constructive algorithms, dfs and similar, dsu, graphs, greedy
Correct Solution:
```
import sys
input = sys.stdin.readline
n,m,D=map(int,input().split())
E=[list(map(int,input().split())) for i in range(m)]
EDGELIST=[[] for i in range(n+1)]
for x,y in E:
EDGELIST[x].append(y)
EDGELIST[y].append(x)
Gro... | output | 1 | 60,673 | 13 | 121,347 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an undirected unweighted connected graph consisting of n vertices and m edges. It is guaranteed that there are no self-loops or multiple edges in the given graph.
Your task is to find any spanning tree of this graph such that ... | instruction | 0 | 60,674 | 13 | 121,348 |
Tags: constructive algorithms, dfs and similar, dsu, graphs, greedy
Correct Solution:
```
from collections import defaultdict, deque
import sys
input = sys.stdin.readline
def get_root(s):
v = []
while not s == root[s]:
v.append(s)
s = root[s]
for i in v:
root[i] = s
return s
de... | output | 1 | 60,674 | 13 | 121,349 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an undirected unweighted connected graph consisting of n vertices and m edges. It is guaranteed that there are no self-loops or multiple edges in the given graph.
Your task is to find any spanning tree of this graph such that ... | instruction | 0 | 60,675 | 13 | 121,350 |
Tags: constructive algorithms, dfs and similar, dsu, graphs, greedy
Correct Solution:
```
n, m, d = map(int, input().split())
g = [[] for _ in range(n + 1)]
haveOne = [False] * (n + 1)
for i in range(m):
u, v = map(int, input().split())
g[u].append(v)
g[v].append(u)
if u == 1:
haveOne[v] = True
if v == 1:
h... | output | 1 | 60,675 | 13 | 121,351 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an undirected unweighted connected graph consisting of n vertices and m edges. It is guaranteed that there are no self-loops or multiple edges in the given graph.
Your task is to find any spanning tree of this graph such that ... | instruction | 0 | 60,676 | 13 | 121,352 |
Tags: constructive algorithms, dfs and similar, dsu, graphs, greedy
Correct Solution:
```
import sys
from collections import Counter, defaultdict
def i_ints():
return map(int, sys.stdin.readline().split())
n, m, D = i_ints()
E = defaultdict(set)
for i in range(m):
u, v = i_ints()
E[u].add(v)
E[v].add(u... | output | 1 | 60,676 | 13 | 121,353 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an undirected unweighted connected graph consisting of n vertices and m edges. It is guaranteed that there are no self-loops or multiple edges in the given graph.
Your task is to find any spanning tree of this graph such that ... | instruction | 0 | 60,677 | 13 | 121,354 |
Tags: constructive algorithms, dfs and similar, dsu, graphs, greedy
Correct Solution:
```
import sys
root = 0
n, m, D = map(int, input().split())
g = [[] for _ in range(n)]
for _ in range(m):
u, v = map(int, input().split())
g[u-1].append(v-1)
g[v-1].append(u-1)
if len(g[root]) < D:
print('NO')
sy... | output | 1 | 60,677 | 13 | 121,355 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an undirected unweighted connected graph consisting of n vertices and m edges. It is guaranteed that there are no self-loops or multiple edges in the given graph.
Your task is to find any spanning tree of this graph such that ... | instruction | 0 | 60,678 | 13 | 121,356 |
Tags: constructive algorithms, dfs and similar, dsu, graphs, greedy
Correct Solution:
```
n, m, D = [int(x) for x in input().split(' ')]
G = {}
for u in range(1, n + 1):
G[u] = set()
for i in range(m):
u, v = [int(x) for x in input().split(' ')]
G[u].add(v)
G[v].add(u)
if len(G[1]) < D:
print('NO')
else:
... | output | 1 | 60,678 | 13 | 121,357 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an undirected unweighted connected graph consisting of n vertices and m edges. It is guaranteed that there are no self-loops or multiple edges in the given graph.
Your task is to find any spanning tree of this graph such that ... | instruction | 0 | 60,679 | 13 | 121,358 |
Tags: constructive algorithms, dfs and similar, dsu, graphs, greedy
Correct Solution:
```
import sys
import math
from collections import defaultdict,deque
import heapq
def find(node,parent):
while parent[node]!=node:
node=parent[node]
return node
def union(a,b,child,parent):
#print(a,'a',b,'b')
para=find(a,parent... | output | 1 | 60,679 | 13 | 121,359 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an undirected unweighted connected graph consisting of n vertices and m edges. It is guaranteed that there are no self-loops or multiple edges in the given graph.
Your task is to find any spanning tree of this graph such that ... | instruction | 0 | 60,680 | 13 | 121,360 |
Tags: constructive algorithms, dfs and similar, dsu, graphs, greedy
Correct Solution:
```
###pyrival template for fast IO
import os
import sys
from io import BytesIO, IOBase
# region fastio
BUFSIZE = 8192
class FastIO(IOBase):
newlines = 0
def __init__(self, file):
self._fd = file.fileno()
self.... | output | 1 | 60,680 | 13 | 121,361 |
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 connected graph consisting of n vertices and m edges. It is guaranteed that there are no self-loops or multiple edges in the given graph.
Your task is to ... | instruction | 0 | 60,681 | 13 | 121,362 |
Yes | output | 1 | 60,681 | 13 | 121,363 |
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 connected graph consisting of n vertices and m edges. It is guaranteed that there are no self-loops or multiple edges in the given graph.
Your task is to ... | instruction | 0 | 60,682 | 13 | 121,364 |
Yes | output | 1 | 60,682 | 13 | 121,365 |
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 connected graph consisting of n vertices and m edges. It is guaranteed that there are no self-loops or multiple edges in the given graph.
Your task is to ... | instruction | 0 | 60,683 | 13 | 121,366 |
Yes | output | 1 | 60,683 | 13 | 121,367 |
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 connected graph consisting of n vertices and m edges. It is guaranteed that there are no self-loops or multiple edges in the given graph.
Your task is to ... | instruction | 0 | 60,684 | 13 | 121,368 |
Yes | output | 1 | 60,684 | 13 | 121,369 |
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 connected graph consisting of n vertices and m edges. It is guaranteed that there are no self-loops or multiple edges in the given graph.
Your task is to ... | instruction | 0 | 60,685 | 13 | 121,370 |
No | output | 1 | 60,685 | 13 | 121,371 |
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 connected graph consisting of n vertices and m edges. It is guaranteed that there are no self-loops or multiple edges in the given graph.
Your task is to ... | instruction | 0 | 60,686 | 13 | 121,372 |
No | output | 1 | 60,686 | 13 | 121,373 |
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 connected graph consisting of n vertices and m edges. It is guaranteed that there are no self-loops or multiple edges in the given graph.
Your task is to ... | instruction | 0 | 60,687 | 13 | 121,374 |
No | output | 1 | 60,687 | 13 | 121,375 |
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 connected graph consisting of n vertices and m edges. It is guaranteed that there are no self-loops or multiple edges in the given graph.
Your task is to ... | instruction | 0 | 60,688 | 13 | 121,376 |
No | output | 1 | 60,688 | 13 | 121,377 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A tree of size n is an undirected connected graph consisting of n vertices without cycles.
Consider some tree with n vertices. We call a tree invariant relative to permutation p = p1p2... pn, if for any two vertices of the tree u and v the ... | instruction | 0 | 61,107 | 13 | 122,214 |
Tags: constructive algorithms, dfs and similar, greedy, trees
Correct Solution:
```
n = int(input())
a = list(map(lambda x: int(x) - 1, input().split()))
p = q = -1
for i in range(n):
if a[a[i]] == i:
p, q = i, a[i]
if a[i] == i:
print('YES')
[print(i + 1, j + 1) for j in range(n) if i != j]
... | output | 1 | 61,107 | 13 | 122,215 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A tree of size n is an undirected connected graph consisting of n vertices without cycles.
Consider some tree with n vertices. We call a tree invariant relative to permutation p = p1p2... pn, if for any two vertices of the tree u and v the ... | instruction | 0 | 61,108 | 13 | 122,216 |
Tags: constructive algorithms, dfs and similar, greedy, trees
Correct Solution:
```
def main():
n = int(input())
a = list(map(lambda x: int(x) - 1, input().split()))
p = -1
q = -1
for i in range(n):
if a[a[i]] == i:
p, q = i, a[i]
if a[i] == i:
print('YES')
... | output | 1 | 61,108 | 13 | 122,217 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A tree of size n is an undirected connected graph consisting of n vertices without cycles.
Consider some tree with n vertices. We call a tree invariant relative to permutation p = p1p2... pn, i... | instruction | 0 | 61,109 | 13 | 122,218 |
No | output | 1 | 61,109 | 13 | 122,219 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Isart and Modsart were trying to solve an interesting problem when suddenly Kasra arrived. Breathless, he asked: "Can you solve a problem I'm stuck at all day?"
We have a tree T with n vertices and m types of ice cream numerated from 1 to m... | instruction | 0 | 61,179 | 13 | 122,358 |
Tags: constructive algorithms, dfs and similar, greedy
Correct Solution:
```
from collections import deque
import sys
input = sys.stdin.readline
n, m = map(int, input().split())
src = 0
X = []
for u in range(n):
X.append(list(map(lambda x: int(x) - 1, input().split())))
X[u] = X[u][1:]
if len(X[u]) > len... | output | 1 | 61,179 | 13 | 122,359 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Isart and Modsart were trying to solve an interesting problem when suddenly Kasra arrived. Breathless, he asked: "Can you solve a problem I'm stuck at all day?"
We have a tree T with n vertices... | instruction | 0 | 61,180 | 13 | 122,360 |
No | output | 1 | 61,180 | 13 | 122,361 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Isart and Modsart were trying to solve an interesting problem when suddenly Kasra arrived. Breathless, he asked: "Can you solve a problem I'm stuck at all day?"
We have a tree T with n vertices... | instruction | 0 | 61,181 | 13 | 122,362 |
No | output | 1 | 61,181 | 13 | 122,363 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Isart and Modsart were trying to solve an interesting problem when suddenly Kasra arrived. Breathless, he asked: "Can you solve a problem I'm stuck at all day?"
We have a tree T with n vertices... | instruction | 0 | 61,182 | 13 | 122,364 |
No | output | 1 | 61,182 | 13 | 122,365 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Isart and Modsart were trying to solve an interesting problem when suddenly Kasra arrived. Breathless, he asked: "Can you solve a problem I'm stuck at all day?"
We have a tree T with n vertices... | instruction | 0 | 61,183 | 13 | 122,366 |
No | output | 1 | 61,183 | 13 | 122,367 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a sequence of n positive integers d1, d2, ..., dn (d1 < d2 < ... < dn). Your task is to construct an undirected graph such that:
* there are exactly dn + 1 vertices;
* there are no self-loops;
* there are no multiple e... | instruction | 0 | 61,227 | 13 | 122,454 |
Tags: constructive algorithms, graphs, implementation
Correct Solution:
```
import sys
line=lambda:sys.stdin.buffer.readline()
n=int(line())
d=[0]+list(map(int,line().split()))
s=[]
for i in range(1,n+1):
for u in range(d[i-1]+1,d[i]+1):
for v in range(u+1,d[n-i+1]+2):
s.append((u,v))
print(len(s))
for t in s: pr... | output | 1 | 61,227 | 13 | 122,455 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a sequence of n positive integers d1, d2, ..., dn (d1 < d2 < ... < dn). Your task is to construct an undirected graph such that:
* there are exactly dn + 1 vertices;
* there are no self-loops;
* there are no multiple e... | instruction | 0 | 61,228 | 13 | 122,456 |
Tags: constructive algorithms, graphs, implementation
Correct Solution:
```
def readline(): return list(map(int, input().split()))
def SolveDegreeSet(DegreSet, n):
edges = []
verticesCount = 0
if(n == 0):
verticesCount = 1
return edges, verticesCount
if(n == 1):
verticesCount = ... | output | 1 | 61,228 | 13 | 122,457 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a sequence of n positive integers d1, d2, ..., dn (d1 < d2 < ... < dn). Your task is to construct an undirected graph such that:
* there are exactly dn + 1 vertices;
* there are no self-loops;
* there are no multiple e... | instruction | 0 | 61,229 | 13 | 122,458 |
Tags: constructive algorithms, graphs, implementation
Correct Solution:
```
# python3
def readline(): return list(map(int, input().split()))
def solve(d):
while d:
dn = d.pop()
if not d:
for i in range(1, dn + 1):
for j in range(i, dn + 1):
yield i... | output | 1 | 61,229 | 13 | 122,459 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a sequence of n positive integers d1, d2, ..., dn (d1 < d2 < ... < dn). Your task is to construct an undirected graph such that:
* there are exactly dn + 1 vertices;
* there are no self-loops;
* there are no multiple e... | instruction | 0 | 61,230 | 13 | 122,460 |
Tags: constructive algorithms, graphs, implementation
Correct Solution:
```
import sys
line=lambda:sys.stdin.buffer.readline()
n=int(line())
d=[0]+list(map(int,line().split()))
s={}
for i in range(1,n+1):
for u in range(d[i],d[i-1],-1):
for v in range(d[n-i+1]+1,u,-1):
s[(u,v)]=1
print(len(s))
for t in s: print(*... | output | 1 | 61,230 | 13 | 122,461 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a sequence of n positive integers d1, d2, ..., dn (d1 < d2 < ... < dn). Your task is to construct an undirected graph such that:
* there are exactly dn + 1 vertices;
* there are no self-loops;
* there are no multiple e... | instruction | 0 | 61,231 | 13 | 122,462 |
Tags: constructive algorithms, graphs, implementation
Correct Solution:
```
from sys import stdin
from sys import stdout
n = int(stdin.readline())
d = [0] + list(map(int, stdin.readline().split()))
e = []
for i in range(1, n+1):
for u in range(d[i-1]+1, d[i]+1):
for v in range(u+1, d[n-i+1]+2):
e.append([u,v])
s... | output | 1 | 61,231 | 13 | 122,463 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a sequence of n positive integers d1, d2, ..., dn (d1 < d2 < ... < dn). Your task is to construct an undirected graph such that:
* there are exactly dn + 1 vertices;
* there ... | instruction | 0 | 61,232 | 13 | 122,464 |
No | output | 1 | 61,232 | 13 | 122,465 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a sequence of n positive integers d1, d2, ..., dn (d1 < d2 < ... < dn). Your task is to construct an undirected graph such that:
* there are exactly dn + 1 vertices;
* there ... | instruction | 0 | 61,233 | 13 | 122,466 |
No | output | 1 | 61,233 | 13 | 122,467 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a sequence of n positive integers d1, d2, ..., dn (d1 < d2 < ... < dn). Your task is to construct an undirected graph such that:
* there are exactly dn + 1 vertices;
* there ... | instruction | 0 | 61,234 | 13 | 122,468 |
No | output | 1 | 61,234 | 13 | 122,469 |
Provide a correct Python 3 solution for this coding contest problem.
We have a rooted binary tree with N vertices, where the vertices are numbered 1 to N. Vertex 1 is the root, and the parent of Vertex i (i \geq 2) is Vertex \left[ \frac{i}{2} \right].
Each vertex has one item in it. The item in Vertex i has a value ... | instruction | 0 | 61,251 | 13 | 122,502 |
"Correct Solution:
```
import sys
n, *inp = map(int, sys.stdin.buffer.read().split())
vvv = [0] + inp[0:n * 2:2]
www = [0] + inp[1:n * 2:2]
weight_limit = 10 ** 5
precalc_limit = min(1 << 10, n + 1)
precalc = [[0] * (weight_limit + 1)]
for u in range(1, precalc_limit):
v = vvv[u]
w = www[u]
dp = precalc[... | output | 1 | 61,251 | 13 | 122,503 |
Provide a correct Python 3 solution for this coding contest problem.
We have a rooted binary tree with N vertices, where the vertices are numbered 1 to N. Vertex 1 is the root, and the parent of Vertex i (i \geq 2) is Vertex \left[ \frac{i}{2} \right].
Each vertex has one item in it. The item in Vertex i has a value ... | instruction | 0 | 61,252 | 13 | 122,504 |
"Correct Solution:
```
import sys
MX = 10**5
def main():
data = map(int, sys.stdin.buffer.read().split())
N = next(data)
H = min(N + 1, 1 << 10)
dp = [None] * H
dp[0] = [0] * (MX + 1)
IV, IW = [], []
i = 1
for v, w in zip(data, data):
if i < H:
dpi = dp[i >> 1][:]
... | output | 1 | 61,252 | 13 | 122,505 |
Provide a correct Python 3 solution for this coding contest problem.
We have a rooted binary tree with N vertices, where the vertices are numbered 1 to N. Vertex 1 is the root, and the parent of Vertex i (i \geq 2) is Vertex \left[ \frac{i}{2} \right].
Each vertex has one item in it. The item in Vertex i has a value ... | instruction | 0 | 61,253 | 13 | 122,506 |
"Correct Solution:
```
import sys
input = sys.stdin.buffer.readline
sys.setrecursionlimit(10 ** 7)
def merge(a, b):
res = []
i, j = 0, 0
while i < len(a) or j < len(b):
if j >= len(b) or (i < len(a) and a[i][0] < b[j][0]):
w, v = a[i]
i += 1
else:
w, v =... | output | 1 | 61,253 | 13 | 122,507 |
Provide a correct Python 3 solution for this coding contest problem.
We have a rooted binary tree with N vertices, where the vertices are numbered 1 to N. Vertex 1 is the root, and the parent of Vertex i (i \geq 2) is Vertex \left[ \frac{i}{2} \right].
Each vertex has one item in it. The item in Vertex i has a value ... | instruction | 0 | 61,254 | 13 | 122,508 |
"Correct Solution:
```
import sys
import bisect
input = sys.stdin.buffer.readline
sys.setrecursionlimit(10 ** 7)
def merge(a, b):
res = []
i, j = 0, 0
while i < len(a) or j < len(b):
if j >= len(b) or (i < len(a) and a[i][0] < b[j][0]):
w, v = a[i]
i += 1
else:
... | output | 1 | 61,254 | 13 | 122,509 |
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