結果
問題 | No.2604 Initial Motion |
ユーザー | miya145592 |
提出日時 | 2024-01-13 01:41:07 |
言語 | PyPy3 (7.3.15) |
結果 |
TLE
|
実行時間 | - |
コード長 | 2,133 bytes |
コンパイル時間 | 285 ms |
コンパイル使用メモリ | 82,724 KB |
実行使用メモリ | 91,340 KB |
最終ジャッジ日時 | 2024-09-28 01:03:07 |
合計ジャッジ時間 | 8,210 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge2 |
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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 | 36 ms
61,508 KB |
testcase_01 | AC | 36 ms
53,648 KB |
testcase_02 | AC | 46 ms
63,532 KB |
testcase_03 | AC | 250 ms
77,876 KB |
testcase_04 | AC | 241 ms
77,824 KB |
testcase_05 | AC | 241 ms
77,712 KB |
testcase_06 | AC | 235 ms
77,324 KB |
testcase_07 | AC | 238 ms
78,344 KB |
testcase_08 | AC | 241 ms
78,364 KB |
testcase_09 | AC | 250 ms
78,096 KB |
testcase_10 | AC | 237 ms
77,724 KB |
testcase_11 | AC | 233 ms
77,688 KB |
testcase_12 | AC | 236 ms
77,692 KB |
testcase_13 | TLE | - |
testcase_14 | AC | 2,735 ms
86,140 KB |
testcase_15 | AC | 1,468 ms
82,640 KB |
testcase_16 | TLE | - |
testcase_17 | TLE | - |
testcase_18 | -- | - |
testcase_19 | -- | - |
testcase_20 | -- | - |
testcase_21 | -- | - |
testcase_22 | -- | - |
testcase_23 | -- | - |
testcase_24 | -- | - |
testcase_25 | -- | - |
testcase_26 | -- | - |
testcase_27 | -- | - |
testcase_28 | -- | - |
testcase_29 | -- | - |
testcase_30 | -- | - |
testcase_31 | -- | - |
testcase_32 | -- | - |
testcase_33 | -- | - |
testcase_34 | -- | - |
testcase_35 | -- | - |
testcase_36 | -- | - |
testcase_37 | -- | - |
testcase_38 | -- | - |
testcase_39 | -- | - |
testcase_40 | -- | - |
testcase_41 | -- | - |
ソースコード
# https://tjkendev.github.io/procon-library/python/min_cost_flow/primal-dual.html from heapq import heappush, heappop class MinCostFlow: INF = 10**18 def __init__(self, N): self.N = N self.G = [[] for i in range(N)] def add_edge(self, fr, to, cap, cost): forward = [to, cap, cost, None] backward = forward[3] = [fr, 0, -cost, forward] self.G[fr].append(forward) self.G[to].append(backward) def flow(self, s, t, f): N = self.N; G = self.G INF = MinCostFlow.INF res = 0 H = [0]*N prv_v = [0]*N prv_e = [None]*N d0 = [INF]*N dist = [INF]*N while f: dist[:] = d0 dist[s] = 0 que = [(0, s)] while que: c, v = heappop(que) if dist[v] < c: continue r0 = dist[v] + H[v] for e in G[v]: w, cap, cost, _ = e if cap > 0 and r0 + cost - H[w] < dist[w]: dist[w] = r = r0 + cost - H[w] prv_v[w] = v; prv_e[w] = e heappush(que, (r, w)) if dist[t] == INF: return None for i in range(N): H[i] += dist[i] d = f; v = t while v != s: d = min(d, prv_e[v][1]) v = prv_v[v] f -= d res += d * H[t] v = t while v != s: e = prv_e[v] e[1] -= d e[3][1] += d v = prv_v[v] return res import sys input = sys.stdin.readline K, N, M = map(int, input().split()) A = list(map(int, input().split())) B = list(map(int, input().split())) MCF = MinCostFlow(N+2) INF = 10**16 for _ in range(M): u, v, d = map(int, input().split()) MCF.add_edge(u, v, INF, d) MCF.add_edge(v, u, INF, d) for a in A: MCF.add_edge(0, a, 1, 0) for i in range(N): if B[i]>0: MCF.add_edge(i+1, N+1, B[i], 0) ans = MCF.flow(0, N+1, K) print(ans)