結果
| 問題 |
No.748 yuki国のお財布事情
|
| コンテスト | |
| ユーザー |
compass19
|
| 提出日時 | 2018-10-19 23:17:44 |
| 言語 | Python3 (3.13.1 + numpy 2.2.1 + scipy 1.14.1) |
| 結果 |
MLE
|
| 実行時間 | - |
| コード長 | 1,684 bytes |
| コンパイル時間 | 99 ms |
| コンパイル使用メモリ | 12,800 KB |
| 実行使用メモリ | 563,232 KB |
| 最終ジャッジ日時 | 2024-11-18 22:31:52 |
| 合計ジャッジ時間 | 33,397 ms |
|
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 15 TLE * 9 MLE * 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].add(c)
elif Root[a] == a and Root[b] != b:
for c in Children[Root[b]]:
Root[c] = Root[a]
Children[Root[a]].add(c)
else:
for c in Children[Root[a]]:
Root[c] = Root[b]
Children[Root[b]].add(c)
is_finish = False
for n in range(N):
if len(Children[n]) == N:
is_finish = True
# exit()
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].add(c)
if len(Children[a]) == N:
# print('A', del_weight)
is_finish = True
elif Root[a] == a and Root[b] != b:
for c in Children[Root[b]]:
Root[c] = Root[a]
Children[Root[a]].add(c)
if len(Children[Root[a]]) == N:
# print('B', del_weight)
# exit()
is_finish = True
else:
for c in Children[Root[a]]:
Root[c] = Root[b]
Children[Root[b]].add(c)
if len(Children[Root[b]]) == N:
is_finish = True
# print(Children[Root[b]])
# print('C', del_weight)
# exit()
# for n in range(N):
# print(Children[n])
print(del_weight)
compass19