結果
問題 | No.872 All Tree Path |
ユーザー | McGregorsh |
提出日時 | 2023-05-17 12:26:24 |
言語 | PyPy3 (7.3.15) |
結果 |
AC
|
実行時間 | 775 ms / 3,000 ms |
コード長 | 1,905 bytes |
コンパイル時間 | 484 ms |
コンパイル使用メモリ | 82,304 KB |
実行使用メモリ | 309,648 KB |
最終ジャッジ日時 | 2024-05-08 23:07:50 |
合計ジャッジ時間 | 10,923 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge4 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 656 ms
140,160 KB |
testcase_01 | AC | 635 ms
139,224 KB |
testcase_02 | AC | 775 ms
140,032 KB |
testcase_03 | AC | 628 ms
309,648 KB |
testcase_04 | AC | 133 ms
89,472 KB |
testcase_05 | AC | 644 ms
139,676 KB |
testcase_06 | AC | 647 ms
139,968 KB |
testcase_07 | AC | 638 ms
139,796 KB |
testcase_08 | AC | 217 ms
94,592 KB |
testcase_09 | AC | 218 ms
94,848 KB |
testcase_10 | AC | 217 ms
94,564 KB |
testcase_11 | AC | 215 ms
94,540 KB |
testcase_12 | AC | 211 ms
94,336 KB |
testcase_13 | AC | 137 ms
89,472 KB |
testcase_14 | AC | 137 ms
89,472 KB |
testcase_15 | AC | 138 ms
89,472 KB |
testcase_16 | AC | 136 ms
89,472 KB |
testcase_17 | AC | 135 ms
89,472 KB |
testcase_18 | AC | 136 ms
89,624 KB |
testcase_19 | AC | 138 ms
89,472 KB |
ソースコード
import sys, re from fractions import Fraction from math import ceil, floor, sqrt, pi, factorial, gcd from copy import deepcopy from collections import Counter, deque, defaultdict from heapq import heapify, heappop, heappush from itertools import accumulate, product, combinations, combinations_with_replacement, permutations from bisect import bisect, bisect_left, bisect_right from functools import reduce from decimal import Decimal, getcontext, ROUND_HALF_UP def i_input(): return int(input()) def i_map(): return map(int, input().split()) def i_list(): return list(i_map()) def i_row(N): return [i_input() for _ in range(N)] def i_row_list(N): return [i_list() for _ in range(N)] def s_input(): return input() def s_map(): return input().split() def s_list(): return list(s_map()) def s_row(N): return [s_input for _ in range(N)] def s_row_str(N): return [s_list() for _ in range(N)] def s_row_list(N): return [list(s_input()) for _ in range(N)] def lcm(a, b): return a * b // gcd(a, b) def get_distance(x1, y1, x2, y2): d = sqrt((x2 - x1) ** 2 + (y2 - y1) ** 2) return d def rotate(table): n_fild = [] for x in zip(*table[::-1]): n_fild.append(x) return n_fild sys.setrecursionlimit(10 ** 7) INF = float('inf') MOD = 10 ** 9 + 7 MOD2 = 998244353 def main(): def dfs(s, p): ret = 1 for i in G[s]: if i == p: continue ret += dfs(i, s) P[s] = ret return ret N = int(input()) G = [[] for i in range(N)] cost = [] for i in range(N-1): u, v, w = i_map() u -= 1 v -= 1 cost.append([u, v, w]) G[u].append(v) G[v].append(u) P = [0] * N dfs(0, -1) ans = 0 for i in range(N-1): u, v, w = cost[i] p = min(P[u], P[v]) amari = N - p ans += p * amari * w print(ans * 2) if __name__ == '__main__': main()