結果
問題 | No.1678 Coin Trade (Multiple) |
ユーザー | chineristAC |
提出日時 | 2021-09-10 22:43:43 |
言語 | PyPy3 (7.3.15) |
結果 |
TLE
|
実行時間 | - |
コード長 | 2,898 bytes |
コンパイル時間 | 423 ms |
コンパイル使用メモリ | 82,048 KB |
実行使用メモリ | 295,600 KB |
最終ジャッジ日時 | 2024-06-12 02:08:10 |
合計ジャッジ時間 | 30,703 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge1 |
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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 | 49 ms
295,600 KB |
testcase_01 | AC | 50 ms
54,784 KB |
testcase_02 | AC | 50 ms
55,040 KB |
testcase_03 | AC | 894 ms
112,620 KB |
testcase_04 | AC | 4,334 ms
210,952 KB |
testcase_05 | AC | 1,560 ms
143,716 KB |
testcase_06 | AC | 1,238 ms
130,852 KB |
testcase_07 | AC | 4,487 ms
202,176 KB |
testcase_08 | AC | 2,778 ms
163,376 KB |
testcase_09 | AC | 1,851 ms
148,752 KB |
testcase_10 | AC | 1,183 ms
102,488 KB |
testcase_11 | AC | 3,126 ms
178,684 KB |
testcase_12 | AC | 1,132 ms
104,548 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 | -- | - |
testcase_42 | -- | - |
testcase_43 | -- | - |
testcase_44 | -- | - |
testcase_45 | -- | - |
testcase_46 | -- | - |
testcase_47 | -- | - |
testcase_48 | -- | - |
testcase_49 | -- | - |
testcase_50 | -- | - |
testcase_51 | -- | - |
testcase_52 | -- | - |
testcase_53 | -- | - |
testcase_54 | -- | - |
testcase_55 | -- | - |
testcase_56 | -- | - |
testcase_57 | -- | - |
testcase_58 | -- | - |
ソースコード
from heapq import heappush, heappop class MinCostFlow: INF = float("inf") 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,first=False): 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: if first: first = False dist[s] = 0 for v in range(N): for e in self.G[v]: nv,cap,cost,_ = e if cap > 0 and dist[v] + cost < dist[nv]: dist[nv] = dist[v] + cost prv_e[nv] = e prv_v[nv] = v 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] continue 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,random input = lambda :sys.stdin.readline().rstrip() mi = lambda :map(int,input().split()) li = lambda :list(mi()) N,K = mi() G = MinCostFlow(N) A = [0 for i in range(N)] for i in range(N): A[i],M = mi() B = li() for pi in B: G.add_edge(pi-1,i,1,A[pi-1]-A[i]) for i in range(N-1): G.add_edge(i,i+1,K,0) f = G.flow(0,N-1,K,first=True) print(-f)