message stringlengths 2 22.8k | message_type stringclasses 2
values | message_id int64 0 1 | conversation_id int64 16 109k | cluster float64 1 1 | __index_level_0__ int64 32 217k |
|---|---|---|---|---|---|
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The construction of subway in Bertown is almost finished! The President of Berland will visit this city soon to look at the new subway himself.
There are n stations in the subway. It was built ... | instruction | 0 | 9,627 | 1 | 19,254 |
Yes | output | 1 | 9,627 | 1 | 19,255 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The construction of subway in Bertown is almost finished! The President of Berland will visit this city soon to look at the new subway himself.
There are n stations in the subway. It was built ... | instruction | 0 | 9,628 | 1 | 19,256 |
No | output | 1 | 9,628 | 1 | 19,257 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The construction of subway in Bertown is almost finished! The President of Berland will visit this city soon to look at the new subway himself.
There are n stations in the subway. It was built ... | instruction | 0 | 9,629 | 1 | 19,258 |
No | output | 1 | 9,629 | 1 | 19,259 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The construction of subway in Bertown is almost finished! The President of Berland will visit this city soon to look at the new subway himself.
There are n stations in the subway. It was built ... | instruction | 0 | 9,630 | 1 | 19,260 |
No | output | 1 | 9,630 | 1 | 19,261 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The construction of subway in Bertown is almost finished! The President of Berland will visit this city soon to look at the new subway himself.
There are n stations in the subway. It was built ... | instruction | 0 | 9,631 | 1 | 19,262 |
No | output | 1 | 9,631 | 1 | 19,263 |
Provide tags and a correct Python 3 solution for this coding contest problem.
The country Treeland consists of n cities, some pairs of them are connected with unidirectional roads. Overall there are n - 1 roads in the country. We know that if we don't take the direction of the roads into consideration, we can get from... | instruction | 0 | 10,243 | 1 | 20,486 |
Tags: dfs and similar, dp, graphs, trees
Correct Solution:
```
#More es mi pastor nada me faltara
import sys
from collections import defaultdict
from typing import NamedTuple
class EdgeNode(NamedTuple):
vertex: int
weight: int
#vertex1: int
class Graph:
def __init__(self, n):
self.graph = d = ... | output | 1 | 10,243 | 1 | 20,487 |
Provide tags and a correct Python 3 solution for this coding contest problem.
The country Treeland consists of n cities, some pairs of them are connected with unidirectional roads. Overall there are n - 1 roads in the country. We know that if we don't take the direction of the roads into consideration, we can get from... | instruction | 0 | 10,244 | 1 | 20,488 |
Tags: dfs and similar, dp, graphs, 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.buff... | output | 1 | 10,244 | 1 | 20,489 |
Provide tags and a correct Python 3 solution for this coding contest problem.
The country Treeland consists of n cities, some pairs of them are connected with unidirectional roads. Overall there are n - 1 roads in the country. We know that if we don't take the direction of the roads into consideration, we can get from... | instruction | 0 | 10,245 | 1 | 20,490 |
Tags: dfs and similar, dp, graphs, trees
Correct Solution:
```
# Author : nitish420 --------------------------------------------------------------------
import os
import sys
from io import BytesIO, IOBase
from collections import deque
def main():
n=int(input())
tree=[[] for _ in range(n+1)]
path=[set() for _ in ra... | output | 1 | 10,245 | 1 | 20,491 |
Provide tags and a correct Python 3 solution for this coding contest problem.
The country Treeland consists of n cities, some pairs of them are connected with unidirectional roads. Overall there are n - 1 roads in the country. We know that if we don't take the direction of the roads into consideration, we can get from... | instruction | 0 | 10,246 | 1 | 20,492 |
Tags: dfs and similar, dp, graphs, trees
Correct Solution:
```
import sys
from collections import defaultdict
from typing import NamedTuple
class EdgeNode(NamedTuple):
vertex: int
weight: int
class Graph:
def __init__(self, n):
self.graph = d = {i: [] for i in range(n + 1)}
self.distanc... | output | 1 | 10,246 | 1 | 20,493 |
Provide tags and a correct Python 3 solution for this coding contest problem.
The country Treeland consists of n cities, some pairs of them are connected with unidirectional roads. Overall there are n - 1 roads in the country. We know that if we don't take the direction of the roads into consideration, we can get from... | instruction | 0 | 10,247 | 1 | 20,494 |
Tags: dfs and similar, dp, graphs, trees
Correct Solution:
```
#More es mi pastor nada me faltara
import sys
from collections import defaultdict
from typing import NamedTuple
class EdgeNode(NamedTuple):
vertex: int
weight: int
class Graph:
def __init__(self, n):
self.graph = d = {i: [] for... | output | 1 | 10,247 | 1 | 20,495 |
Provide tags and a correct Python 3 solution for this coding contest problem.
The country Treeland consists of n cities, some pairs of them are connected with unidirectional roads. Overall there are n - 1 roads in the country. We know that if we don't take the direction of the roads into consideration, we can get from... | instruction | 0 | 10,248 | 1 | 20,496 |
Tags: dfs and similar, dp, graphs, trees
Correct Solution:
```
from math import sqrt,gcd,ceil,floor,log,factorial
from itertools import permutations,combinations
from collections import Counter, defaultdict
import collections,sys,threading
import collections,sys,threading
sys.setrecursionlimit(10**9)
threading.stack_si... | output | 1 | 10,248 | 1 | 20,497 |
Provide tags and a correct Python 3 solution for this coding contest problem.
The country Treeland consists of n cities, some pairs of them are connected with unidirectional roads. Overall there are n - 1 roads in the country. We know that if we don't take the direction of the roads into consideration, we can get from... | instruction | 0 | 10,249 | 1 | 20,498 |
Tags: dfs and similar, dp, graphs, trees
Correct Solution:
```
# -*- coding:utf-8 -*-
"""
created by shuangquan.huang at 1/13/20
"""
import collections
import time
import os
import sys
import bisect
import heapq
from typing import List
def redOfTree(node, parent, g):
count = 0
for v, c in g[node]:
... | output | 1 | 10,249 | 1 | 20,499 |
Provide tags and a correct Python 3 solution for this coding contest problem.
The country Treeland consists of n cities, some pairs of them are connected with unidirectional roads. Overall there are n - 1 roads in the country. We know that if we don't take the direction of the roads into consideration, we can get from... | instruction | 0 | 10,250 | 1 | 20,500 |
Tags: dfs and similar, dp, graphs, trees
Correct Solution:
```
n=int(input())
t=[0]*(n+1)
u,v=[[]for i in range(n+1)],[[]for i in range(n+1)]
for i in range(n-1):
x,y=map(int,input().split())
t[y]=1
u[x].append(y)
v[y].append(x)
d, s = u[1] + v[1], len(v[1])
for i in u[1]:
t[i]=1
v[i].remove(1)
... | output | 1 | 10,250 | 1 | 20,501 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The country Treeland consists of n cities, some pairs of them are connected with unidirectional roads. Overall there are n - 1 roads in the country. We know that if we don't take the direction o... | instruction | 0 | 10,251 | 1 | 20,502 |
Yes | output | 1 | 10,251 | 1 | 20,503 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The country Treeland consists of n cities, some pairs of them are connected with unidirectional roads. Overall there are n - 1 roads in the country. We know that if we don't take the direction o... | instruction | 0 | 10,252 | 1 | 20,504 |
Yes | output | 1 | 10,252 | 1 | 20,505 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The country Treeland consists of n cities, some pairs of them are connected with unidirectional roads. Overall there are n - 1 roads in the country. We know that if we don't take the direction o... | instruction | 0 | 10,253 | 1 | 20,506 |
Yes | output | 1 | 10,253 | 1 | 20,507 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The country Treeland consists of n cities, some pairs of them are connected with unidirectional roads. Overall there are n - 1 roads in the country. We know that if we don't take the direction o... | instruction | 0 | 10,254 | 1 | 20,508 |
Yes | output | 1 | 10,254 | 1 | 20,509 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The country Treeland consists of n cities, some pairs of them are connected with unidirectional roads. Overall there are n - 1 roads in the country. We know that if we don't take the direction o... | instruction | 0 | 10,255 | 1 | 20,510 |
No | output | 1 | 10,255 | 1 | 20,511 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The country Treeland consists of n cities, some pairs of them are connected with unidirectional roads. Overall there are n - 1 roads in the country. We know that if we don't take the direction o... | instruction | 0 | 10,256 | 1 | 20,512 |
No | output | 1 | 10,256 | 1 | 20,513 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The country Treeland consists of n cities, some pairs of them are connected with unidirectional roads. Overall there are n - 1 roads in the country. We know that if we don't take the direction o... | instruction | 0 | 10,257 | 1 | 20,514 |
No | output | 1 | 10,257 | 1 | 20,515 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The country Treeland consists of n cities, some pairs of them are connected with unidirectional roads. Overall there are n - 1 roads in the country. We know that if we don't take the direction o... | instruction | 0 | 10,258 | 1 | 20,516 |
No | output | 1 | 10,258 | 1 | 20,517 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Everybody knows that the capital of Berland is connected to Bercouver (the Olympic capital) by a direct road. To improve the road's traffic capacity, there was placed just one traffic sign, limiting the maximum speed. Traffic signs in Berlan... | instruction | 0 | 10,354 | 1 | 20,708 |
Tags: implementation, math
Correct Solution:
```
#!/usr/bin/env python
from sys import stdin, stderr
from math import sqrt
EPS = 1e-9
def position_at_time(t, acceletarion, initial_speed, initial_position):
return 0.5*acceletarion*t*t + initial_speed*t + initial_position
def time_to_reach_speed(final_speed, initi... | output | 1 | 10,354 | 1 | 20,709 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Everybody knows that the capital of Berland is connected to Bercouver (the Olympic capital) by a direct road. To improve the road's traffic capacity, there was placed just one traffic sign, limiting the maximum speed. Traffic signs in Berlan... | instruction | 0 | 10,355 | 1 | 20,710 |
Tags: implementation, math
Correct Solution:
```
from math import sqrt
a, v = map(int, input().split())
l, d, w = map(int, input().split())
w = min(v, w)
lowtime = (v - w) / a
lowdist = v * lowtime - a * lowtime**2 / 2
startdist = v**2 / (2 * a)
if startdist + lowdist <= d:
ans = v / a + (d - startdist - lowdist) ... | output | 1 | 10,355 | 1 | 20,711 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Everybody knows that the capital of Berland is connected to Bercouver (the Olympic capital) by a direct road. To improve the road's traffic capacity, there was placed just one traffic sign, limiting the maximum speed. Traffic signs in Berlan... | instruction | 0 | 10,356 | 1 | 20,712 |
Tags: implementation, math
Correct Solution:
```
a, v = map(int, input().split())
l, d, w = map(int, input().split())
t1, t2 = 0, 0
vt = (d * 2 * a) ** 0.5
v_max = min(v, w)
if vt < min(v, w):
t1 = (2 * d / a) ** 0.5
v_max = v
v0 = vt
else:
v_mid = min((((2 * a * d) + v_max ** 2) * 0.5) ** 0.5, v)
t... | output | 1 | 10,356 | 1 | 20,713 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Everybody knows that the capital of Berland is connected to Bercouver (the Olympic capital) by a direct road. To improve the road's traffic capacity, there was placed just one traffic sign, limiting the maximum speed. Traffic signs in Berlan... | instruction | 0 | 10,357 | 1 | 20,714 |
Tags: implementation, math
Correct Solution:
```
a,v=map(int,input().split())
l,d,w=map(int,input().split())
t=0
def gett(a,b,c):
delta=b**2-4*a*c
t1=(-b+delta**(1/2))/(2*a)
t2=(-b-delta**(1/2))/(2*a)
if min(t1,t2)>0:
return min(t1,t2)
else:
return max(t1,t2)
if 2*a*d<=w*w or v<=w:
... | output | 1 | 10,357 | 1 | 20,715 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Everybody knows that the capital of Berland is connected to Bercouver (the Olympic capital) by a direct road. To improve the road's traffic capacity, there was placed just one traffic sign, limiting the maximum speed. Traffic signs in Berlan... | instruction | 0 | 10,358 | 1 | 20,716 |
Tags: implementation, math
Correct Solution:
```
# -*- coding: utf-8 -*-
"""
Created on Sun Mar 4 22:28:47 2018
@author: hp
"""
[a,v] = [eval(x) for x in str.split(input())]
[l,d,w] = [eval(x) for x in str.split(input())]
if v <= w:
if v ** 2 >= 2 * a *l:
#accer all the way
t = (2 * l / a) ** 0.... | output | 1 | 10,358 | 1 | 20,717 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Everybody knows that the capital of Berland is connected to Bercouver (the Olympic capital) by a direct road. To improve the road's traffic capacity, there was placed just one traffic sign, limiting the maximum speed. Traffic signs in Berlan... | instruction | 0 | 10,359 | 1 | 20,718 |
Tags: implementation, math
Correct Solution:
```
import math
a, v = map(float, input().split())
l, d, w = map(float, input().split())
res = 0.0
if v <= w:
t1 = v / a
d1 = 0.5*a*t1*t1
if d1 >= l:
res = math.sqrt(l*2/a)
else:
t2 = (l - d1) / v
res = t1 + t2
else:
t1 = w / a
... | output | 1 | 10,359 | 1 | 20,719 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Everybody knows that the capital of Berland is connected to Bercouver (the Olympic capital) by a direct road. To improve the road's traffic capacity, there was placed just one traffic sign, limiting the maximum speed. Traffic signs in Berlan... | instruction | 0 | 10,360 | 1 | 20,720 |
Tags: implementation, math
Correct Solution:
```
import math
def getdt():
return map(int, input().split())
def calc(v0, v, a, x):
t = (v - v0) / a
x0 = v0 * t + 0.5 * a * t * t
if x0 >= x:
return (x, (math.sqrt(v0 * v0 + 2 * a * x) - v0) / a)
return (x0, t)
def go(v0, v, a, x):
x0, t = c... | output | 1 | 10,360 | 1 | 20,721 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Everybody knows that the capital of Berland is connected to Bercouver (the Olympic capital) by a direct road. To improve the road's traffic capacity, there was placed just one traffic sign, limiting the maximum speed. Traffic signs in Berlan... | instruction | 0 | 10,361 | 1 | 20,722 |
Tags: implementation, math
Correct Solution:
```
from math import sqrt
a, v = map(int, input().split())
l, d, w = map(int, input().split())
def findt(u, v, a, dist):
front = (v*v-u*u)/(2*a)
if front > dist:
return (sqrt(u*u+2*a*dist)-u)/a
return (v-u)/a + (dist-front)/v
def solve(a, v, l, d, w):
if v <= w or 2... | output | 1 | 10,361 | 1 | 20,723 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Everybody knows that the capital of Berland is connected to Bercouver (the Olympic capital) by a direct road. To improve the road's traffic capacity, there was placed just one traffic sign, limi... | instruction | 0 | 10,362 | 1 | 20,724 |
Yes | output | 1 | 10,362 | 1 | 20,725 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Everybody knows that the capital of Berland is connected to Bercouver (the Olympic capital) by a direct road. To improve the road's traffic capacity, there was placed just one traffic sign, limi... | instruction | 0 | 10,363 | 1 | 20,726 |
Yes | output | 1 | 10,363 | 1 | 20,727 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Everybody knows that the capital of Berland is connected to Bercouver (the Olympic capital) by a direct road. To improve the road's traffic capacity, there was placed just one traffic sign, limi... | instruction | 0 | 10,364 | 1 | 20,728 |
Yes | output | 1 | 10,364 | 1 | 20,729 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Everybody knows that the capital of Berland is connected to Bercouver (the Olympic capital) by a direct road. To improve the road's traffic capacity, there was placed just one traffic sign, limi... | instruction | 0 | 10,365 | 1 | 20,730 |
Yes | output | 1 | 10,365 | 1 | 20,731 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Everybody knows that the capital of Berland is connected to Bercouver (the Olympic capital) by a direct road. To improve the road's traffic capacity, there was placed just one traffic sign, limi... | instruction | 0 | 10,366 | 1 | 20,732 |
No | output | 1 | 10,366 | 1 | 20,733 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Everybody knows that the capital of Berland is connected to Bercouver (the Olympic capital) by a direct road. To improve the road's traffic capacity, there was placed just one traffic sign, limi... | instruction | 0 | 10,367 | 1 | 20,734 |
No | output | 1 | 10,367 | 1 | 20,735 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Everybody knows that the capital of Berland is connected to Bercouver (the Olympic capital) by a direct road. To improve the road's traffic capacity, there was placed just one traffic sign, limi... | instruction | 0 | 10,368 | 1 | 20,736 |
No | output | 1 | 10,368 | 1 | 20,737 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Everybody knows that the capital of Berland is connected to Bercouver (the Olympic capital) by a direct road. To improve the road's traffic capacity, there was placed just one traffic sign, limi... | instruction | 0 | 10,369 | 1 | 20,738 |
No | output | 1 | 10,369 | 1 | 20,739 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Barney lives in NYC. NYC has infinite number of intersections numbered with positive integers starting from 1. There exists a bidirectional road between intersections i and 2i and another road between i and 2i + 1 for every positive integer ... | instruction | 0 | 10,402 | 1 | 20,804 |
Tags: brute force, data structures, implementation, trees
Correct Solution:
```
#!/usr/bin/env python3
import collections
def lca(u, v):
ub = bin(u)[2:]
vb = bin(v)[2:]
r = 0
for i, (a, b) in enumerate(zip(ub, vb)):
if a != b:
break
r = r * 2 + int(a)
return r
def a... | output | 1 | 10,402 | 1 | 20,805 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Barney lives in NYC. NYC has infinite number of intersections numbered with positive integers starting from 1. There exists a bidirectional road between intersections i and 2i and another road between i and 2i + 1 for every positive integer ... | instruction | 0 | 10,403 | 1 | 20,806 |
Tags: brute force, data structures, implementation, trees
Correct Solution:
```
#########################################################################################################\
#########################################################################################################
###########################... | output | 1 | 10,403 | 1 | 20,807 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Barney lives in NYC. NYC has infinite number of intersections numbered with positive integers starting from 1. There exists a bidirectional road between intersections i and 2i and another road between i and 2i + 1 for every positive integer ... | instruction | 0 | 10,404 | 1 | 20,808 |
Tags: brute force, data structures, implementation, trees
Correct Solution:
```
n=int(input())
d={}
def lca(u,v,w) :
res=0
while u!=v :
if u<v :
v,u=u,v
d[u]=d.get(u,0)+w
res+=d[u]
u=u//2
return res
for i in range(n) :
l=list(map(int,input().split()))
if l... | output | 1 | 10,404 | 1 | 20,809 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Barney lives in NYC. NYC has infinite number of intersections numbered with positive integers starting from 1. There exists a bidirectional road between intersections i and 2i and another road between i and 2i + 1 for every positive integer ... | instruction | 0 | 10,405 | 1 | 20,810 |
Tags: brute force, data structures, implementation, trees
Correct Solution:
```
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Created on Wed Jul 15 23:50:55 2020
@author: shailesh
"""
from collections import defaultdict
def find_cost(node_1,node_2,intersect_dict):
new_dict = defaultdict(lambda : 0)
co... | output | 1 | 10,405 | 1 | 20,811 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Barney lives in NYC. NYC has infinite number of intersections numbered with positive integers starting from 1. There exists a bidirectional road between intersections i and 2i and another road between i and 2i + 1 for every positive integer ... | instruction | 0 | 10,406 | 1 | 20,812 |
Tags: brute force, data structures, implementation, trees
Correct Solution:
```
def path_to_root(n):
path = [n]
while n != 1:
if n % 2:
path.append((n - 1) // 2)
n = (n - 1) // 2
else:
path.append(n // 2)
n //= 2
return path
def path_beetwen(... | output | 1 | 10,406 | 1 | 20,813 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Barney lives in NYC. NYC has infinite number of intersections numbered with positive integers starting from 1. There exists a bidirectional road between intersections i and 2i and another road between i and 2i + 1 for every positive integer ... | instruction | 0 | 10,407 | 1 | 20,814 |
Tags: brute force, data structures, implementation, trees
Correct Solution:
```
from collections import defaultdict
arr=defaultdict(int)
for i in range(int(input())):
t=list(map(int,input().strip().split()))
if t[0]==1:
type,a,b,w=t
if b>a:
a,b=b,a
while a!=b:
# ... | output | 1 | 10,407 | 1 | 20,815 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Barney lives in NYC. NYC has infinite number of intersections numbered with positive integers starting from 1. There exists a bidirectional road between intersections i and 2i and another road between i and 2i + 1 for every positive integer ... | instruction | 0 | 10,408 | 1 | 20,816 |
Tags: brute force, data structures, implementation, trees
Correct Solution:
```
def main():
d = {}
for _ in range(int(input())):
c, *l = input().split()
if c == "1":
v, u, w = map(int, l)
while u != v:
if u < v:
d[v] = d.get(v, 0) + w
... | output | 1 | 10,408 | 1 | 20,817 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Barney lives in NYC. NYC has infinite number of intersections numbered with positive integers starting from 1. There exists a bidirectional road between intersections i and 2i and another road between i and 2i + 1 for every positive integer ... | instruction | 0 | 10,409 | 1 | 20,818 |
Tags: brute force, data structures, implementation, trees
Correct Solution:
```
d = {}
def lca(x, y, w):
res = 0
while x != y:
if x < y:
x, y = y, x;
d[x] = d.get(x, 0) + w
res += d[x]
x //= 2
return res
q = int(input())
while (q > 0):
q -= 1
a = list(map(... | output | 1 | 10,409 | 1 | 20,819 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Barney lives in NYC. NYC has infinite number of intersections numbered with positive integers starting from 1. There exists a bidirectional road between intersections i and 2i and another road b... | instruction | 0 | 10,410 | 1 | 20,820 |
Yes | output | 1 | 10,410 | 1 | 20,821 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Barney lives in NYC. NYC has infinite number of intersections numbered with positive integers starting from 1. There exists a bidirectional road between intersections i and 2i and another road b... | instruction | 0 | 10,411 | 1 | 20,822 |
Yes | output | 1 | 10,411 | 1 | 20,823 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Barney lives in NYC. NYC has infinite number of intersections numbered with positive integers starting from 1. There exists a bidirectional road between intersections i and 2i and another road b... | instruction | 0 | 10,412 | 1 | 20,824 |
Yes | output | 1 | 10,412 | 1 | 20,825 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Barney lives in NYC. NYC has infinite number of intersections numbered with positive integers starting from 1. There exists a bidirectional road between intersections i and 2i and another road b... | instruction | 0 | 10,413 | 1 | 20,826 |
Yes | output | 1 | 10,413 | 1 | 20,827 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Barney lives in NYC. NYC has infinite number of intersections numbered with positive integers starting from 1. There exists a bidirectional road between intersections i and 2i and another road b... | instruction | 0 | 10,414 | 1 | 20,828 |
No | output | 1 | 10,414 | 1 | 20,829 |
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