結果
問題 | No.748 yuki国のお財布事情 |
ユーザー |
![]() |
提出日時 | 2018-10-19 23:20:16 |
言語 | Python3 (3.13.1 + numpy 2.2.1 + scipy 1.14.1) |
結果 |
WA
|
実行時間 | - |
コード長 | 1,568 bytes |
コンパイル時間 | 274 ms |
コンパイル使用メモリ | 12,928 KB |
実行使用メモリ | 385,132 KB |
最終ジャッジ日時 | 2024-11-18 22:39:34 |
合計ジャッジ時間 | 17,201 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge2 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 1 WA * 2 |
other | AC * 6 WA * 18 TLE * 2 |
ソースコード
N, M, K = map(int, input().split()) Root = [n for n in range(N)] Children = [{n} for n in range(N)] edges = [None for _ in range(M)] for m in range(M): a, b, c = map(int, input().split()) edges[m] = (a-1, b-1, c) abs_edges = set(int(input())-1 for _ in range(K)) sorted_edges = sorted([e for e in set(range(M)) - abs_edges], key=lambda x: edges[x][2]) # 最小木 T = {edges[e] for e in abs_edges} del_weight = 0 # union tree for e in abs_edges: a, b, _ = edges[e] if Root[a] == a and Root[b] == b: for c in Children[Root[b]]: Root[c] = a Children[a] |= Children[Root[b]] elif Root[a] == a and Root[b] != b: for c in Children[Root[b]]: Root[c] = Root[a] Children[Root[a]] |= Children[Root[b]] else: for c in Children[Root[a]]: Root[c] = Root[b] Children[Root[b]] |= Children[Root[a]] is_finish = False for n in range(N): if len(Children[n]) == N: is_finish = True for e in sorted_edges: # edge eを追加できるかどうか a, b, c = edges[e] if is_finish or Root[a] == Root[b]: del_weight += c continue if Root[a] == a and Root[b] == b: for c in Children[Root[b]]: Root[c] = a Children[a] |= Children[Root[b]] if len(Children[a]) == N: is_finish = True elif Root[a] == a and Root[b] != b: for c in Children[Root[b]]: Root[c] = Root[a] Children[Root[a]] |= Children[Root[b]] if len(Children[Root[a]]) == N: is_finish = True else: for c in Children[Root[a]]: Root[c] = Root[b] Children[Root[b]] |= Children[Root[a]] if len(Children[Root[b]]) == N: is_finish = True print(del_weight)