結果
問題 | No.2604 Initial Motion |
ユーザー | timi |
提出日時 | 2024-01-14 17:30:50 |
言語 | PyPy3 (7.3.15) |
結果 |
TLE
|
実行時間 | - |
コード長 | 3,555 bytes |
コンパイル時間 | 306 ms |
コンパイル使用メモリ | 82,176 KB |
実行使用メモリ | 95,104 KB |
最終ジャッジ日時 | 2024-09-28 02:02:45 |
合計ジャッジ時間 | 8,414 ms |
ジャッジサーバーID (参考情報) |
judge1 / 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 | 47 ms
60,288 KB |
testcase_01 | AC | 48 ms
54,528 KB |
testcase_02 | AC | 58 ms
64,128 KB |
testcase_03 | AC | 281 ms
77,804 KB |
testcase_04 | AC | 289 ms
77,844 KB |
testcase_05 | AC | 293 ms
77,828 KB |
testcase_06 | AC | 293 ms
77,908 KB |
testcase_07 | AC | 294 ms
78,120 KB |
testcase_08 | AC | 289 ms
77,752 KB |
testcase_09 | AC | 286 ms
78,036 KB |
testcase_10 | AC | 306 ms
78,160 KB |
testcase_11 | AC | 282 ms
77,948 KB |
testcase_12 | AC | 297 ms
78,028 KB |
testcase_13 | TLE | - |
testcase_14 | -- | - |
testcase_15 | -- | - |
testcase_16 | -- | - |
testcase_17 | -- | - |
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
from collections import deque from sys import stdin K,N,M=map(int, stdin.readline().split()) A=list(map(int, stdin.readline().split())) B=list(map(int, stdin.readline().split())) class MinCostFlow: def __init__(self, n): self.n = n self.G = [[] for i in range(n)] def addEdge(self, f, t, cap, cost): # [to, cap, cost, rev] self.G[f].append([t, cap, cost, len(self.G[t])]) self.G[t].append([f, 0, -cost, len(self.G[f])-1]) def minCostFlow(self, s, t, f): n = self.n G = self.G prevv = [0]*n; preve = [0]*n INF = 10**9+7 res = 0 while f: dist = [INF]*n dist[s] = 0 update = 1 while update: update = 0 for v in range(n): if dist[v] == INF: continue gv = G[v] for i in range(len(gv)): to, cap, cost, rev = gv[i] if cap > 0 and dist[v] + cost < dist[to]: dist[to] = dist[v] + cost prevv[to] = v; preve[to] = i update = 1 if dist[t] == INF: return -1 d = f; v = t while v != s: d = min(d, G[prevv[v]][preve[v]][1]) v = prevv[v] f -= d res += d * dist[t] v = t while v != s: e = G[prevv[v]][preve[v]] e[1] -= d G[v][e[3]][1] += d v = prevv[v] return res 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 addedge(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 graph =MinCostFlow(N+2) for i in range(K): t=A[i] graph.addedge(0,t,1,0) for i in range(N): t=B[i] if t!=0: graph.addedge(i+1,N+1,t,0) for i in range(M): u,v,d=map(int, stdin.readline().split()) graph.addedge(u,v,10**5,d) graph.addedge(v,u,10**5,d) print(graph.flow(0,N+1,K))