結果
問題 | No.654 Air E869120 |
ユーザー | Eguy |
提出日時 | 2021-10-24 16:45:08 |
言語 | PyPy3 (7.3.15) |
結果 |
AC
|
実行時間 | 318 ms / 2,000 ms |
コード長 | 2,556 bytes |
コンパイル時間 | 224 ms |
コンパイル使用メモリ | 82,560 KB |
実行使用メモリ | 81,664 KB |
最終ジャッジ日時 | 2024-10-02 02:54:45 |
合計ジャッジ時間 | 7,254 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 | 50 ms
54,912 KB |
testcase_01 | AC | 49 ms
54,912 KB |
testcase_02 | AC | 48 ms
54,656 KB |
testcase_03 | AC | 48 ms
54,400 KB |
testcase_04 | AC | 49 ms
54,528 KB |
testcase_05 | AC | 49 ms
54,656 KB |
testcase_06 | AC | 50 ms
55,168 KB |
testcase_07 | AC | 49 ms
55,040 KB |
testcase_08 | AC | 49 ms
55,040 KB |
testcase_09 | AC | 49 ms
54,784 KB |
testcase_10 | AC | 277 ms
79,616 KB |
testcase_11 | AC | 267 ms
79,104 KB |
testcase_12 | AC | 248 ms
79,104 KB |
testcase_13 | AC | 262 ms
79,872 KB |
testcase_14 | AC | 302 ms
81,280 KB |
testcase_15 | AC | 270 ms
80,128 KB |
testcase_16 | AC | 303 ms
81,664 KB |
testcase_17 | AC | 318 ms
81,152 KB |
testcase_18 | AC | 310 ms
81,536 KB |
testcase_19 | AC | 292 ms
80,768 KB |
testcase_20 | AC | 182 ms
79,360 KB |
testcase_21 | AC | 182 ms
79,616 KB |
testcase_22 | AC | 125 ms
78,336 KB |
testcase_23 | AC | 173 ms
80,000 KB |
testcase_24 | AC | 200 ms
80,256 KB |
testcase_25 | AC | 118 ms
78,464 KB |
testcase_26 | AC | 152 ms
78,720 KB |
testcase_27 | AC | 105 ms
78,208 KB |
testcase_28 | AC | 127 ms
78,464 KB |
testcase_29 | AC | 103 ms
78,592 KB |
testcase_30 | AC | 81 ms
71,936 KB |
testcase_31 | AC | 82 ms
72,832 KB |
testcase_32 | AC | 82 ms
71,808 KB |
testcase_33 | AC | 81 ms
72,192 KB |
testcase_34 | AC | 82 ms
72,192 KB |
testcase_35 | AC | 49 ms
54,528 KB |
testcase_36 | AC | 49 ms
54,400 KB |
testcase_37 | AC | 49 ms
54,528 KB |
testcase_38 | AC | 49 ms
54,400 KB |
testcase_39 | AC | 50 ms
55,040 KB |
ソースコード
import sys, math sys.setrecursionlimit(10**6) INF = float('inf') mod = 10**9 + 7 #mod = 998244353 input = lambda: sys.stdin.readline().rstrip() def li(): return list(map(int, input().split())) from collections import deque, defaultdict class Dinic: def __init__(self, n): self.n = n self.links = [[] for _ in range(n)] self.depth = None self.progress = None def add_link(self, _from, to, cap): self.links[_from].append([cap, to, len(self.links[to])]) self.links[to].append([0, _from, len(self.links[_from]) - 1]) def bfs(self, s): depth = [-1] * self.n depth[s] = 0 q = deque([s]) while q: v = q.popleft() for cap, to, rev in self.links[v]: if cap > 0 and depth[to] < 0: depth[to] = depth[v] + 1 q.append(to) self.depth = depth def dfs(self, v, t, flow): if v == t: return flow links_v = self.links[v] for i in range(self.progress[v], len(links_v)): self.progress[v] = i cap, to, rev = link = links_v[i] if cap == 0 or self.depth[v] >= self.depth[to]: continue d = self.dfs(to, t, min(flow, cap)) if d == 0: continue link[0] -= d self.links[to][rev][0] += d return d return 0 def max_flow(self, s, t): flow = 0 while True: self.bfs(s) if self.depth[t] < 0: return flow self.progress = [0] * self.n current_flow = self.dfs(s, t, INF) while current_flow > 0: flow += current_flow current_flow = self.dfs(s, t, INF) N, M, d = li() lists = [[] for _ in range(N+1)] inp = [] for _ in range(M): u, v, p, q, w = li() q += d lists[u].append(p) lists[v].append(q) inp.append((u, v, p, q, w)) dicts = [] acc = [0] for i in range(N+1): lists[i] = list(set(lists[i])) lists[i].sort() d = {i: e for e, i in enumerate(lists[i])} dicts.append(d) acc.append(acc[-1] + len(lists[i])) dinic = Dinic(acc[-1] + 2) for i in range(M): u, v, p, q, w = inp[i] idx1 = acc[u] + dicts[u][p] idx2 = acc[v] + dicts[v][q] dinic.add_link(idx1, idx2, w) t = acc[-1] + 1 for i in range(1, N+1): for j in range(len(dicts[i])-1): idx = acc[i] + j dinic.add_link(idx, idx+1, INF) print(dinic.max_flow(0, acc[-1]-1 ))