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Provide tags and a correct Python 3 solution for this coding contest problem. If the girl doesn't go to Denis, then Denis will go to the girl. Using this rule, the young man left home, bought flowers and went to Nastya. On the way from Denis's house to the girl's house is a road of n lines. This road can't be always...
instruction
0
84,380
1
168,760
Tags: dfs and similar, dp, graphs, shortest paths Correct Solution: ``` ''' from bisect import * from collections import * from math import gcd,ceil,sqrt,floor,inf from heapq import * from itertools import * from operator import add,mul,sub,xor,truediv,floordiv from functools import *''' #-----------------------------...
output
1
84,380
1
168,761
Provide tags and a correct Python 3 solution for this coding contest problem. If the girl doesn't go to Denis, then Denis will go to the girl. Using this rule, the young man left home, bought flowers and went to Nastya. On the way from Denis's house to the girl's house is a road of n lines. This road can't be always...
instruction
0
84,381
1
168,762
Tags: dfs and similar, dp, graphs, shortest paths Correct Solution: ``` import collections n,m=map(int,input().split()) arr=list(map(int,input().split())) arr=sorted(arr) g,r=map(int,input().split()) q=collections.deque() q.append((0,0,0)) checked=[[-1]*(g) for _ in range(m)] checked[0][0]=0 while len(q)!=0: v,t,cnt...
output
1
84,381
1
168,763
Provide tags and a correct Python 3 solution for this coding contest problem. If the girl doesn't go to Denis, then Denis will go to the girl. Using this rule, the young man left home, bought flowers and went to Nastya. On the way from Denis's house to the girl's house is a road of n lines. This road can't be always...
instruction
0
84,382
1
168,764
Tags: dfs and similar, dp, graphs, shortest paths Correct Solution: ``` from collections import deque N, M = map(int, input().split()) D = sorted(list(set([int(a) for a in input().split()] + [-1<<10, N]))) M = len(D) DD = [D[i+1] - D[i] for i in range(M-1)] green, red = map(int, input().split()) X = [[0] * (green + 1)...
output
1
84,382
1
168,765
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. If the girl doesn't go to Denis, then Denis will go to the girl. Using this rule, the young man left home, bought flowers and went to Nastya. On the way from Denis's house to the girl's house ...
instruction
0
84,383
1
168,766
Yes
output
1
84,383
1
168,767
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. If the girl doesn't go to Denis, then Denis will go to the girl. Using this rule, the young man left home, bought flowers and went to Nastya. On the way from Denis's house to the girl's house ...
instruction
0
84,384
1
168,768
Yes
output
1
84,384
1
168,769
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. If the girl doesn't go to Denis, then Denis will go to the girl. Using this rule, the young man left home, bought flowers and went to Nastya. On the way from Denis's house to the girl's house ...
instruction
0
84,385
1
168,770
Yes
output
1
84,385
1
168,771
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. If the girl doesn't go to Denis, then Denis will go to the girl. Using this rule, the young man left home, bought flowers and went to Nastya. On the way from Denis's house to the girl's house ...
instruction
0
84,386
1
168,772
No
output
1
84,386
1
168,773
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. If the girl doesn't go to Denis, then Denis will go to the girl. Using this rule, the young man left home, bought flowers and went to Nastya. On the way from Denis's house to the girl's house ...
instruction
0
84,387
1
168,774
No
output
1
84,387
1
168,775
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. If the girl doesn't go to Denis, then Denis will go to the girl. Using this rule, the young man left home, bought flowers and went to Nastya. On the way from Denis's house to the girl's house ...
instruction
0
84,388
1
168,776
No
output
1
84,388
1
168,777
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. If the girl doesn't go to Denis, then Denis will go to the girl. Using this rule, the young man left home, bought flowers and went to Nastya. On the way from Denis's house to the girl's house ...
instruction
0
84,389
1
168,778
No
output
1
84,389
1
168,779
Provide tags and a correct Python 3 solution for this coding contest problem. Barney lives in country USC (United States of Charzeh). USC has n cities numbered from 1 through n and n - 1 roads between them. Cities and roads of USC form a rooted tree (Barney's not sure why it is rooted). Root of the tree is the city nu...
instruction
0
84,658
1
169,316
Tags: dfs and similar, math, probabilities, trees Correct Solution: ``` n = int(input()) pos, tree, ans, sz = list(map(int,input().split())) if n > 1 else [],[],[],[] for i in range(n): tree.append([]) ans.append(0.0) sz.append(0) for i in range(n - 1): tree[pos[i] - 1].append(i + 1) for i in range(n)[::-1]: ...
output
1
84,658
1
169,317
Provide tags and a correct Python 3 solution for this coding contest problem. Barney lives in country USC (United States of Charzeh). USC has n cities numbered from 1 through n and n - 1 roads between them. Cities and roads of USC form a rooted tree (Barney's not sure why it is rooted). Root of the tree is the city nu...
instruction
0
84,659
1
169,318
Tags: dfs and similar, math, probabilities, trees Correct Solution: ``` # [https://gitlab.com/amirmd76/cf-round-362/-/blob/master/B/dans.py <- https://gitlab.com/amirmd76/cf-round-362/tree/master/B <- https://codeforces.com/blog/entry/46031 <- https://codeforces.com/problemset/problem/696/B <- https://algoprog.ru/mater...
output
1
84,659
1
169,319
Provide tags and a correct Python 3 solution for this coding contest problem. Barney lives in country USC (United States of Charzeh). USC has n cities numbered from 1 through n and n - 1 roads between them. Cities and roads of USC form a rooted tree (Barney's not sure why it is rooted). Root of the tree is the city nu...
instruction
0
84,660
1
169,320
Tags: dfs and similar, math, probabilities, trees Correct Solution: ``` n = int(input()) if n ==1: print(1) exit(0) l = list(map(int,input().split())) w = [[]for i in range(n)] sz = [1]*n for i in range(n-1): w[l[i]-1].append(i+1) for i in range(n-1,-1,-1): for j in range(len(w[i])): sz[i]+=sz[w...
output
1
84,660
1
169,321
Provide tags and a correct Python 3 solution for this coding contest problem. Barney lives in country USC (United States of Charzeh). USC has n cities numbered from 1 through n and n - 1 roads between them. Cities and roads of USC form a rooted tree (Barney's not sure why it is rooted). Root of the tree is the city nu...
instruction
0
84,661
1
169,322
Tags: dfs and similar, math, probabilities, trees Correct Solution: ``` n = int(input()) pos,tree,ans,sz = list(map(int,input().split())) if n > 1 else [],[],[],[] for i in range(n): tree.append([]) ans.append(0.0) sz.append(0) for i in range(n-1): tree[pos[i]-1].append(i+1) for i in range(n)[::-1]: sz[i] =...
output
1
84,661
1
169,323
Provide tags and a correct Python 3 solution for this coding contest problem. Barney lives in country USC (United States of Charzeh). USC has n cities numbered from 1 through n and n - 1 roads between them. Cities and roads of USC form a rooted tree (Barney's not sure why it is rooted). Root of the tree is the city nu...
instruction
0
84,662
1
169,324
Tags: dfs and similar, math, probabilities, trees Correct Solution: ``` import sys input = sys.stdin.readline n = int(input()) par = [-1] + [int(i) - 1 for i in input().split()] child = [[] for i in range(n)] for i in range(1, n): child[par[i]].append(i) size = [1] * n def dfs(): stack = [0] visit = [Fals...
output
1
84,662
1
169,325
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You have got a new job, and it's very interesting, you are a ship captain. Your first task is to move your ship from one point to another point, and for sure you want to move it at the minimum c...
instruction
0
85,412
1
170,824
No
output
1
85,412
1
170,825
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You have got a new job, and it's very interesting, you are a ship captain. Your first task is to move your ship from one point to another point, and for sure you want to move it at the minimum c...
instruction
0
85,413
1
170,826
No
output
1
85,413
1
170,827
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. A few years ago Sajjad left his school and register to another one due to security reasons. Now he wishes to find Amir, one of his schoolmates and good friends. There are n schools numerated fr...
instruction
0
85,433
1
170,866
Yes
output
1
85,433
1
170,867
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. A few years ago Sajjad left his school and register to another one due to security reasons. Now he wishes to find Amir, one of his schoolmates and good friends. There are n schools numerated fr...
instruction
0
85,434
1
170,868
Yes
output
1
85,434
1
170,869
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. A few years ago Sajjad left his school and register to another one due to security reasons. Now he wishes to find Amir, one of his schoolmates and good friends. There are n schools numerated fr...
instruction
0
85,435
1
170,870
Yes
output
1
85,435
1
170,871
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. A few years ago Sajjad left his school and register to another one due to security reasons. Now he wishes to find Amir, one of his schoolmates and good friends. There are n schools numerated fr...
instruction
0
85,436
1
170,872
Yes
output
1
85,436
1
170,873
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. A few years ago Sajjad left his school and register to another one due to security reasons. Now he wishes to find Amir, one of his schoolmates and good friends. There are n schools numerated fr...
instruction
0
85,437
1
170,874
No
output
1
85,437
1
170,875
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. A few years ago Sajjad left his school and register to another one due to security reasons. Now he wishes to find Amir, one of his schoolmates and good friends. There are n schools numerated fr...
instruction
0
85,438
1
170,876
No
output
1
85,438
1
170,877
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. A few years ago Sajjad left his school and register to another one due to security reasons. Now he wishes to find Amir, one of his schoolmates and good friends. There are n schools numerated fr...
instruction
0
85,439
1
170,878
No
output
1
85,439
1
170,879
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. A few years ago Sajjad left his school and register to another one due to security reasons. Now he wishes to find Amir, one of his schoolmates and good friends. There are n schools numerated fr...
instruction
0
85,440
1
170,880
No
output
1
85,440
1
170,881
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Joisino is planning on touring Takahashi Town. The town is divided into square sections by north-south and east-west lines. We will refer to the section that is the x-th from the west and the y-...
instruction
0
85,611
1
171,222
No
output
1
85,611
1
171,223
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Joisino is planning on touring Takahashi Town. The town is divided into square sections by north-south and east-west lines. We will refer to the section that is the x-th from the west and the y-...
instruction
0
85,612
1
171,224
No
output
1
85,612
1
171,225
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Joisino is planning on touring Takahashi Town. The town is divided into square sections by north-south and east-west lines. We will refer to the section that is the x-th from the west and the y-...
instruction
0
85,613
1
171,226
No
output
1
85,613
1
171,227
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Joisino is planning on touring Takahashi Town. The town is divided into square sections by north-south and east-west lines. We will refer to the section that is the x-th from the west and the y-...
instruction
0
85,614
1
171,228
No
output
1
85,614
1
171,229
Provide a correct Python 3 solution for this coding contest problem. Taro is planning a long trip by train during the summer vacation. However, in order for Taro, who is a high school student, to travel as far as possible during the summer vacation, which has only one month, he cannot make a good plan unless he finds ...
instruction
0
85,636
1
171,272
"Correct Solution: ``` from heapq import heappop, heappush class WeightedEdge: """Weighted edge.""" def __init__(self, a, b, weight): self.a = a self.b = b self.weight = weight def __repr__(self): return "(%d - %d: %d)" % (self.a, self.b, self.weight) def __lt__(self...
output
1
85,636
1
171,273
Provide a correct Python 3 solution for this coding contest problem. Taro is planning a long trip by train during the summer vacation. However, in order for Taro, who is a high school student, to travel as far as possible during the summer vacation, which has only one month, he cannot make a good plan unless he finds ...
instruction
0
85,637
1
171,274
"Correct Solution: ``` def warshall_floyd(v_count: int, matrix: list) -> list: """ ワーシャルフロイド :param v_count: 頂点数 :param matrix: 隣接行列(到達不能はfloat("inf")) """ # 到達不能をfloat("inf")にしておけば余計なチェックを入れなくても # inf > inf+(-1) のような到達不能+負辺が繋がってしまうことはない for i in range(v_count): for j, c2 in enumerat...
output
1
85,637
1
171,275
Provide a correct Python 3 solution for this coding contest problem. Taro is planning a long trip by train during the summer vacation. However, in order for Taro, who is a high school student, to travel as far as possible during the summer vacation, which has only one month, he cannot make a good plan unless he finds ...
instruction
0
85,638
1
171,276
"Correct Solution: ``` from heapq import heappush, heappop def Dijkstra(graph, start, goal): que = [(0, start)] visited = [False] * len(graph) while True: path_len, v = heappop(que) visited[v] = True if v == goal: print(path_len) break for w, edge_len...
output
1
85,638
1
171,277
Provide a correct Python 3 solution for this coding contest problem. Taro is planning a long trip by train during the summer vacation. However, in order for Taro, who is a high school student, to travel as far as possible during the summer vacation, which has only one month, he cannot make a good plan unless he finds ...
instruction
0
85,639
1
171,278
"Correct Solution: ``` from heapq import heappop as hpop from heapq import heappush as hpush def main(): while True: n, m = map(int, input().split()) if not n: break cost_edges = [[] for _ in range(m)] time_edges = [[] for _ in range(m)] for _ in range(n): a, b, c, t =...
output
1
85,639
1
171,279
Provide a correct Python 3 solution for this coding contest problem. Taro is planning a long trip by train during the summer vacation. However, in order for Taro, who is a high school student, to travel as far as possible during the summer vacation, which has only one month, he cannot make a good plan unless he finds ...
instruction
0
85,640
1
171,280
"Correct Solution: ``` import heapq import sys from collections import defaultdict def dijkstra(graph, size, start): d = [float('inf')] * size d[start] = 0 q = [(0, start)] while len(q): du, u = heapq.heappop(q) for length, v in graph[u]: if d[v] > du + length: ...
output
1
85,640
1
171,281
Provide a correct Python 3 solution for this coding contest problem. Taro is planning a long trip by train during the summer vacation. However, in order for Taro, who is a high school student, to travel as far as possible during the summer vacation, which has only one month, he cannot make a good plan unless he finds ...
instruction
0
85,641
1
171,282
"Correct Solution: ``` from heapq import heappop as hpop from heapq import heappush as hpush def main(): while True: n, m = map(int, input().split()) if not n: break cost_edges = [[] for _ in range(m)] time_edges = [[] for _ in range(m)] for _ in range(n): a, b, c, t =...
output
1
85,641
1
171,283
Provide a correct Python 3 solution for this coding contest problem. Taro is planning a long trip by train during the summer vacation. However, in order for Taro, who is a high school student, to travel as far as possible during the summer vacation, which has only one month, he cannot make a good plan unless he finds ...
instruction
0
85,642
1
171,284
"Correct Solution: ``` from heapq import heappush, heappop import sys readline = sys.stdin.readline write = sys.stdout.write def solve(): M, N = map(int, readline().split()) if M == N == 0: return False G = [[] for i in range(N)] INF = 10**18 def solve(s, t, u): dist = [INF]*N ...
output
1
85,642
1
171,285
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Taro is planning a long trip by train during the summer vacation. However, in order for Taro, who is a high school student, to travel as far as possible during the summer vacation, which has onl...
instruction
0
85,643
1
171,286
No
output
1
85,643
1
171,287
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Taro is planning a long trip by train during the summer vacation. However, in order for Taro, who is a high school student, to travel as far as possible during the summer vacation, which has onl...
instruction
0
85,644
1
171,288
No
output
1
85,644
1
171,289
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Taro is planning a long trip by train during the summer vacation. However, in order for Taro, who is a high school student, to travel as far as possible during the summer vacation, which has onl...
instruction
0
85,645
1
171,290
No
output
1
85,645
1
171,291
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Taro is planning a long trip by train during the summer vacation. However, in order for Taro, who is a high school student, to travel as far as possible during the summer vacation, which has onl...
instruction
0
85,646
1
171,292
No
output
1
85,646
1
171,293
Provide a correct Python 3 solution for this coding contest problem. There are N cities in Republic of AtCoder. The size of the i-th city is A_{i}. Takahashi would like to build N-1 bidirectional roads connecting two cities so that any city can be reached from any other city by using these roads. Assume that the cost...
instruction
0
86,361
1
172,722
"Correct Solution: ``` from operator import itemgetter import itertools def inpl(): return list(map(int, input().split())) def cost(x, y): if x == y: return float('inf') return D * abs(x - y) + A[x] + A[y] N, D = inpl() A = inpl() Right = [(v - i*D, i) for i, v in enumerate(A)] Left = [(v + i*D, i) for ...
output
1
86,361
1
172,723
Provide a correct Python 3 solution for this coding contest problem. There are N cities in Republic of AtCoder. The size of the i-th city is A_{i}. Takahashi would like to build N-1 bidirectional roads connecting two cities so that any city can be reached from any other city by using these roads. Assume that the cost...
instruction
0
86,362
1
172,724
"Correct Solution: ``` # E N, D = map(int, input().split()) A_list = list(map(int, input().split())) # minimum spanning tree res = 0 # Prim based B_list = [0]*N for i in range(N): B_list[i] = A_list[i] + D*i C_list = [0]*N for i in range(N): C_list[i] = A_list[i] + D*(N-i) # cummin seen from left B...
output
1
86,362
1
172,725
Provide a correct Python 3 solution for this coding contest problem. There are N cities in Republic of AtCoder. The size of the i-th city is A_{i}. Takahashi would like to build N-1 bidirectional roads connecting two cities so that any city can be reached from any other city by using these roads. Assume that the cost...
instruction
0
86,363
1
172,726
"Correct Solution: ``` import sys read = sys.stdin.buffer.read readline = sys.stdin.buffer.readline readlines = sys.stdin.buffer.readlines from heapq import heappush, heappop, heapify from collections import defaultdict """ ・最小値のある場所を調べる。左右にまたがる辺は結ばない。 ・最小値の両隣は必ず最小値と結ぶ。 ・結んだあと1点に縮約していく。 """ N,D,*A = map(int,read().s...
output
1
86,363
1
172,727
Provide a correct Python 3 solution for this coding contest problem. There are N cities in Republic of AtCoder. The size of the i-th city is A_{i}. Takahashi would like to build N-1 bidirectional roads connecting two cities so that any city can be reached from any other city by using these roads. Assume that the cost...
instruction
0
86,364
1
172,728
"Correct Solution: ``` from itertools import accumulate from operator import itemgetter n, d = map(int, input().split()) aaa = list(map(int, input().split())) costs_l = [(-i * d + a, i) for i, a in enumerate(aaa)] costs_r = [(i * d + a, i) for i, a in enumerate(aaa)] costs_l = list(accumulate(costs_l, min)) costs_r =...
output
1
86,364
1
172,729
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. There are N cities in Republic of AtCoder. The size of the i-th city is A_{i}. Takahashi would like to build N-1 bidirectional roads connecting two cities so that any city can be reached from an...
instruction
0
86,365
1
172,730
No
output
1
86,365
1
172,731
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. There are N cities in Republic of AtCoder. The size of the i-th city is A_{i}. Takahashi would like to build N-1 bidirectional roads connecting two cities so that any city can be reached from an...
instruction
0
86,366
1
172,732
No
output
1
86,366
1
172,733
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. There are N cities in Republic of AtCoder. The size of the i-th city is A_{i}. Takahashi would like to build N-1 bidirectional roads connecting two cities so that any city can be reached from an...
instruction
0
86,367
1
172,734
No
output
1
86,367
1
172,735
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. There are N cities in Republic of AtCoder. The size of the i-th city is A_{i}. Takahashi would like to build N-1 bidirectional roads connecting two cities so that any city can be reached from an...
instruction
0
86,368
1
172,736
No
output
1
86,368
1
172,737
Provide a correct Python 3 solution for this coding contest problem. I have n tickets for a train with a rabbit. Each ticket is numbered from 0 to n − 1, and you can use the k ticket to go to p⋅ak + q⋅bk station. Rabbit wants to go to the all-you-can-eat carrot shop at the station m station ahead of the current stati...
instruction
0
86,507
1
173,014
"Correct Solution: ``` import sys readline = sys.stdin.readline write = sys.stdout.write def solve(): N, M, A, B, P, Q = map(int, readline().split()) ans = M if A == B == 1: v = P+Q k = min(N, M // v) ans = min(ans, M - k*v) if k+1 <= N: ans = min(ans, (k+1)*v - M...
output
1
86,507
1
173,015
Provide a correct Python 3 solution for this coding contest problem. I have n tickets for a train with a rabbit. Each ticket is numbered from 0 to n − 1, and you can use the k ticket to go to p⋅ak + q⋅bk station. Rabbit wants to go to the all-you-can-eat carrot shop at the station m station ahead of the current stati...
instruction
0
86,508
1
173,016
"Correct Solution: ``` def solve(): n,m,a,b,p,q = map(int,input().split()) if a==1 and b==1: if (p+q)*n <= m: return m - (p+q)*n else: k = m//(p+q) return min(m-k*(p+q),(k+1)*(p+q)-m) else: ans = m for i in range(min(n-1,40),-1,-1): ...
output
1
86,508
1
173,017