結果
問題 | No.1316 Maximum Minimum Spanning Tree |
ユーザー | hitonanode |
提出日時 | 2020-12-12 05:59:31 |
言語 | Python3 (3.12.2 + numpy 1.26.4 + scipy 1.12.0) |
結果 |
AC
|
実行時間 | 706 ms / 2,000 ms |
コード長 | 2,267 bytes |
コンパイル時間 | 130 ms |
コンパイル使用メモリ | 12,800 KB |
実行使用メモリ | 12,544 KB |
最終ジャッジ日時 | 2024-09-19 22:31:01 |
合計ジャッジ時間 | 25,116 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
(要ログイン)
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 | 31 ms
11,008 KB |
testcase_01 | AC | 30 ms
11,008 KB |
testcase_02 | AC | 30 ms
11,008 KB |
testcase_03 | AC | 36 ms
11,136 KB |
testcase_04 | AC | 31 ms
11,008 KB |
testcase_05 | AC | 31 ms
11,008 KB |
testcase_06 | AC | 32 ms
11,136 KB |
testcase_07 | AC | 466 ms
11,904 KB |
testcase_08 | AC | 475 ms
12,032 KB |
testcase_09 | AC | 483 ms
12,032 KB |
testcase_10 | AC | 529 ms
12,032 KB |
testcase_11 | AC | 78 ms
11,520 KB |
testcase_12 | AC | 69 ms
11,520 KB |
testcase_13 | AC | 64 ms
11,392 KB |
testcase_14 | AC | 64 ms
11,392 KB |
testcase_15 | AC | 382 ms
12,288 KB |
testcase_16 | AC | 501 ms
12,416 KB |
testcase_17 | AC | 378 ms
12,416 KB |
testcase_18 | AC | 432 ms
12,416 KB |
testcase_19 | AC | 44 ms
11,264 KB |
testcase_20 | AC | 46 ms
11,264 KB |
testcase_21 | AC | 45 ms
11,264 KB |
testcase_22 | AC | 44 ms
11,264 KB |
testcase_23 | AC | 47 ms
11,264 KB |
testcase_24 | AC | 50 ms
11,392 KB |
testcase_25 | AC | 47 ms
11,264 KB |
testcase_26 | AC | 47 ms
11,392 KB |
testcase_27 | AC | 45 ms
11,392 KB |
testcase_28 | AC | 41 ms
11,392 KB |
testcase_29 | AC | 41 ms
11,264 KB |
testcase_30 | AC | 41 ms
11,264 KB |
testcase_31 | AC | 47 ms
11,264 KB |
testcase_32 | AC | 51 ms
11,392 KB |
testcase_33 | AC | 45 ms
11,136 KB |
testcase_34 | AC | 47 ms
11,264 KB |
testcase_35 | AC | 41 ms
11,264 KB |
testcase_36 | AC | 41 ms
11,392 KB |
testcase_37 | AC | 41 ms
11,136 KB |
testcase_38 | AC | 40 ms
11,264 KB |
testcase_39 | AC | 46 ms
11,392 KB |
testcase_40 | AC | 45 ms
11,392 KB |
testcase_41 | AC | 44 ms
11,264 KB |
testcase_42 | AC | 44 ms
11,136 KB |
testcase_43 | AC | 431 ms
11,776 KB |
testcase_44 | AC | 475 ms
11,648 KB |
testcase_45 | AC | 582 ms
11,776 KB |
testcase_46 | AC | 635 ms
11,776 KB |
testcase_47 | AC | 184 ms
12,160 KB |
testcase_48 | AC | 179 ms
12,160 KB |
testcase_49 | AC | 157 ms
12,288 KB |
testcase_50 | AC | 148 ms
12,160 KB |
testcase_51 | AC | 492 ms
12,288 KB |
testcase_52 | AC | 490 ms
12,416 KB |
testcase_53 | AC | 706 ms
12,160 KB |
testcase_54 | AC | 631 ms
12,160 KB |
testcase_55 | AC | 542 ms
12,032 KB |
testcase_56 | AC | 560 ms
12,032 KB |
testcase_57 | AC | 544 ms
12,032 KB |
testcase_58 | AC | 637 ms
12,032 KB |
testcase_59 | AC | 526 ms
11,904 KB |
testcase_60 | AC | 444 ms
11,904 KB |
testcase_61 | AC | 626 ms
12,032 KB |
testcase_62 | AC | 594 ms
12,032 KB |
testcase_63 | AC | 583 ms
12,032 KB |
testcase_64 | AC | 459 ms
12,032 KB |
testcase_65 | AC | 495 ms
12,032 KB |
testcase_66 | AC | 587 ms
11,904 KB |
testcase_67 | AC | 598 ms
11,904 KB |
testcase_68 | AC | 488 ms
12,032 KB |
testcase_69 | AC | 506 ms
12,032 KB |
testcase_70 | AC | 477 ms
12,288 KB |
testcase_71 | AC | 543 ms
12,416 KB |
testcase_72 | AC | 648 ms
12,416 KB |
testcase_73 | AC | 434 ms
12,288 KB |
testcase_74 | AC | 526 ms
12,416 KB |
testcase_75 | AC | 57 ms
11,392 KB |
testcase_76 | AC | 63 ms
11,392 KB |
testcase_77 | AC | 59 ms
11,392 KB |
testcase_78 | AC | 414 ms
12,288 KB |
testcase_79 | AC | 388 ms
12,544 KB |
testcase_80 | AC | 443 ms
12,288 KB |
testcase_81 | AC | 191 ms
12,288 KB |
ソースコード
# Python, assuming AC from collections import deque class MaxFlow: def __init__(self, N: int) -> None: self.N = N self.edges = [[] for _ in range(N)] def add_edge(self, s: int, t: int, cap: int) -> None: e = [t, cap, None] e[2] = erev = [s, 0, e] self.edges[s].append(e) self.edges[t].append(erev) def bfs(self, s: int, t: int) -> bool: self.level = [-1] * self.N self.level[s] = 0 q = deque([s]) while q: v = q.popleft() lnxt = self.level[v] + 1 for to, cap, _ in self.edges[v]: if cap and self.level[to] < 0: self.level[to] = lnxt q.append(to) return self.level[t] >= 0 def dfs_dinic(self, v: int, goal: int, f: int) -> int: if v == goal: return f for e in self.it[v]: to, cap, rev = e if cap and self.level[v] < self.level[to]: d = self.dfs_dinic(to, goal, min(f, cap)) if d: e[1] -= d rev[1] += d return d return 0 def Dinic(self, s: int, t: int, req: int) -> int: flow = 0 while self.bfs(s, t) and req: *self.it, = map(iter, self.edges) while req: f = self.dfs_dinic(s, t, req) if f == 0: break flow += f req -= f return flow N, M, K = map(int, input().split()) A = [-1] * M B = [-1] * M C = [-1] * M D = [-1] * M c2eid = [] for eid in range(M): A[eid], B[eid], C[eid], D[eid] = map(int, input().split()) c2eid.append((C[eid], eid)) X = [0] * M for ci, i in sorted(c2eid): mf = MaxFlow(N + 2) mf.add_edge(0, A[i], K * N) mf.add_edge(0, B[i], K * N) for a, b, x in zip(A, B, X): mf.add_edge(0, a, x) mf.add_edge(a, b, x) for j in range(N): mf.add_edge(j + 1, N + 1, K) X[i] = min(D[i], mf.Dinic(0, N + 1, 1 << 60) - K - sum(X)) if sum(X) < K * (N - 1): print(-1) else: print(sum([c * x for c, x in zip(C, X)]))