結果
問題 | No.1690 Power Grid |
ユーザー | ansain |
提出日時 | 2021-06-22 12:27:43 |
言語 | PyPy3 (7.3.15) |
結果 |
WA
(最新)
AC
(最初)
|
実行時間 | - |
コード長 | 3,483 bytes |
コンパイル時間 | 1,086 ms |
コンパイル使用メモリ | 87,008 KB |
実行使用メモリ | 81,228 KB |
最終ジャッジ日時 | 2023-09-18 20:22:16 |
合計ジャッジ時間 | 7,478 ms |
ジャッジサーバーID (参考情報) |
judge14 / judge13 |
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 | 113 ms
76,488 KB |
testcase_01 | AC | 111 ms
76,676 KB |
testcase_02 | AC | 114 ms
76,404 KB |
testcase_03 | WA | - |
testcase_04 | WA | - |
testcase_05 | AC | 115 ms
76,484 KB |
testcase_06 | AC | 224 ms
79,848 KB |
testcase_07 | AC | 214 ms
79,452 KB |
testcase_08 | AC | 215 ms
79,496 KB |
testcase_09 | AC | 217 ms
79,536 KB |
testcase_10 | AC | 137 ms
78,712 KB |
testcase_11 | AC | 118 ms
77,304 KB |
testcase_12 | AC | 115 ms
76,356 KB |
testcase_13 | AC | 144 ms
79,324 KB |
testcase_14 | AC | 220 ms
79,976 KB |
testcase_15 | AC | 122 ms
77,528 KB |
testcase_16 | AC | 479 ms
80,900 KB |
testcase_17 | AC | 339 ms
81,228 KB |
testcase_18 | AC | 277 ms
81,188 KB |
testcase_19 | AC | 456 ms
80,032 KB |
testcase_20 | AC | 392 ms
80,992 KB |
testcase_21 | AC | 125 ms
77,636 KB |
testcase_22 | AC | 253 ms
80,536 KB |
testcase_23 | AC | 130 ms
77,200 KB |
testcase_24 | AC | 231 ms
80,596 KB |
testcase_25 | AC | 175 ms
78,908 KB |
testcase_26 | AC | 130 ms
78,008 KB |
testcase_27 | AC | 113 ms
76,244 KB |
ソースコード
import sys from collections import defaultdict, Counter, deque from itertools import permutations, combinations, product, combinations_with_replacement, groupby, accumulate import operator from math import sqrt, gcd, factorial from copy import deepcopy # from math import isqrt, prod,comb # python3.8用(notpypy) #from bisect import bisect_left,bisect_right #from functools import lru_cache,reduce #from heapq import heappush,heappop,heapify,heappushpop,heapreplace #import numpy as np #import networkx as nx #from networkx.utils import UnionFind #from numba import njit, b1, i1, i4, i8, f8 #from scipy.sparse import csr_matrix #from scipy.sparse.csgraph import shortest_path, floyd_warshall, dijkstra, bellman_ford, johnson, NegativeCycleError # numba例 @njit(i1(i4[:], i8[:, :]),cache=True) 引数i4配列、i8 2次元配列,戻り値i1 def input(): return sys.stdin.readline().rstrip() def divceil(n, k): return 1+(n-1)//k # n/kの切り上げを返す def yn(hantei, yes='Yes', no='No'): print(yes if hantei else no) class UnionFind(): def __init__(self, n): self.n = n self.parents = [-1] * n self.group_num = n def find(self, x): if self.parents[x] < 0: return x else: self.parents[x] = self.find(self.parents[x]) return self.parents[x] def union(self, x, y): x = self.find(x) y = self.find(y) if x == y: return self.group_num -= 1 if self.parents[x] > self.parents[y]: x, y = y, x self.parents[x] += self.parents[y] self.parents[y] = x def size(self, x): return -self.parents[self.find(x)] def same(self, x, y): return self.find(x) == self.find(y) def members(self, x): root = self.find(x) return [i for i in range(self.n) if self.find(i) == root] def roots(self): return [i for i, x in enumerate(self.parents) if x < 0] def group_count(self): return self.group_num def all_group_members(self): self.all_group_member = defaultdict(list) for i in range(self.n): self.all_group_member[self.find(i)].append(i) return self.all_group_member def __str__(self): return '\n'.join('{}: {}'.format(r, self.members(r)) for r in self.roots()) def main(): mod = 10**9+7 mod2 = 998244353 n, m, k = map(int, input().split()) A = list(map(int, input().split())) cost = [[float("inf")]*n for i in range(n)] for i in range(m): x, y, z = map(int, input().split()) x -= 1 y -= 1 cost[x][y] = z cost[y][x] = z for i in range(n): cost[i][i] = 0 for kk in range(n): for ii in range(n): for jj in range(n): cost[ii][jj] = min(cost[ii][jj], cost[ii][kk] + cost[kk][jj]) edges = [[i, j, cost[i][j]] for i, j in product(range(n), repeat=2) if i < j] edges.sort(key=lambda x:x[2]) ans=10**20 for uses in combinations(range(n),k): tmpans=sum(A[use] for use in uses) u=set(uses) uf=UnionFind(n) cnt=0 for x,y,z in edges: if x in u and y in u and not uf.same(x,y): uf.union(x,y) tmpans+=z cnt+=1 if cnt==k-1: ans=min(ans,tmpans) break print(ans) if __name__ == '__main__': main()