結果
問題 | No.654 Air E869120 |
ユーザー | mo124121 |
提出日時 | 2023-09-07 22:42:11 |
言語 | PyPy3 (7.3.15) |
結果 |
AC
|
実行時間 | 382 ms / 2,000 ms |
コード長 | 5,874 bytes |
コンパイル時間 | 689 ms |
コンパイル使用メモリ | 82,416 KB |
実行使用メモリ | 80,460 KB |
最終ジャッジ日時 | 2024-06-25 16:17:31 |
合計ジャッジ時間 | 8,384 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge5 |
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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 | 67 ms
68,488 KB |
testcase_01 | AC | 67 ms
68,256 KB |
testcase_02 | AC | 66 ms
68,796 KB |
testcase_03 | AC | 67 ms
69,008 KB |
testcase_04 | AC | 70 ms
69,564 KB |
testcase_05 | AC | 68 ms
68,740 KB |
testcase_06 | AC | 75 ms
70,844 KB |
testcase_07 | AC | 72 ms
68,768 KB |
testcase_08 | AC | 70 ms
69,316 KB |
testcase_09 | AC | 70 ms
69,576 KB |
testcase_10 | AC | 382 ms
80,168 KB |
testcase_11 | AC | 313 ms
79,952 KB |
testcase_12 | AC | 311 ms
80,192 KB |
testcase_13 | AC | 349 ms
80,112 KB |
testcase_14 | AC | 355 ms
80,180 KB |
testcase_15 | AC | 331 ms
80,060 KB |
testcase_16 | AC | 201 ms
79,772 KB |
testcase_17 | AC | 214 ms
80,052 KB |
testcase_18 | AC | 183 ms
80,088 KB |
testcase_19 | AC | 212 ms
80,460 KB |
testcase_20 | AC | 162 ms
79,848 KB |
testcase_21 | AC | 157 ms
80,268 KB |
testcase_22 | AC | 132 ms
78,584 KB |
testcase_23 | AC | 149 ms
80,100 KB |
testcase_24 | AC | 169 ms
80,008 KB |
testcase_25 | AC | 129 ms
78,516 KB |
testcase_26 | AC | 136 ms
78,576 KB |
testcase_27 | AC | 126 ms
78,724 KB |
testcase_28 | AC | 130 ms
79,044 KB |
testcase_29 | AC | 133 ms
78,508 KB |
testcase_30 | AC | 118 ms
78,628 KB |
testcase_31 | AC | 120 ms
78,684 KB |
testcase_32 | AC | 118 ms
78,640 KB |
testcase_33 | AC | 119 ms
78,768 KB |
testcase_34 | AC | 115 ms
78,836 KB |
testcase_35 | AC | 65 ms
67,924 KB |
testcase_36 | AC | 66 ms
68,480 KB |
testcase_37 | AC | 68 ms
68,448 KB |
testcase_38 | AC | 66 ms
69,420 KB |
testcase_39 | AC | 70 ms
71,192 KB |
ソースコード
import types _atcoder_code = """ # Python port of AtCoder Library. __version__ = '0.0.1' """ atcoder = types.ModuleType("atcoder") exec(_atcoder_code, atcoder.__dict__) _atcoder_maxflow_code = """ from typing import NamedTuple, Optional, List, cast class MFGraph: class Edge(NamedTuple): src: int dst: int cap: int flow: int class _Edge: def __init__(self, dst: int, cap: int) -> None: self.dst = dst self.cap = cap self.rev: Optional[MFGraph._Edge] = None def __init__(self, n: int) -> None: self._n = n self._g: List[List[MFGraph._Edge]] = [[] for _ in range(n)] self._edges: List[MFGraph._Edge] = [] def add_edge(self, src: int, dst: int, cap: int) -> int: assert 0 <= src < self._n assert 0 <= dst < self._n assert 0 <= cap m = len(self._edges) e = MFGraph._Edge(dst, cap) re = MFGraph._Edge(src, 0) e.rev = re re.rev = e self._g[src].append(e) self._g[dst].append(re) self._edges.append(e) return m def get_edge(self, i: int) -> Edge: assert 0 <= i < len(self._edges) e = self._edges[i] re = cast(MFGraph._Edge, e.rev) return MFGraph.Edge( re.dst, e.dst, e.cap + re.cap, re.cap ) def edges(self) -> List[Edge]: return [self.get_edge(i) for i in range(len(self._edges))] def change_edge(self, i: int, new_cap: int, new_flow: int) -> None: assert 0 <= i < len(self._edges) assert 0 <= new_flow <= new_cap e = self._edges[i] e.cap = new_cap - new_flow assert e.rev is not None e.rev.cap = new_flow def flow(self, s: int, t: int, flow_limit: Optional[int] = None) -> int: assert 0 <= s < self._n assert 0 <= t < self._n assert s != t if flow_limit is None: flow_limit = cast(int, sum(e.cap for e in self._g[s])) current_edge = [0] * self._n level = [0] * self._n def fill(arr: List[int], value: int) -> None: for i in range(len(arr)): arr[i] = value def bfs() -> bool: fill(level, self._n) queue = [] q_front = 0 queue.append(s) level[s] = 0 while q_front < len(queue): v = queue[q_front] q_front += 1 next_level = level[v] + 1 for e in self._g[v]: if e.cap == 0 or level[e.dst] <= next_level: continue level[e.dst] = next_level if e.dst == t: return True queue.append(e.dst) return False def dfs(lim: int) -> int: stack = [] edge_stack: List[MFGraph._Edge] = [] stack.append(t) while stack: v = stack[-1] if v == s: flow = min(lim, min(e.cap for e in edge_stack)) for e in edge_stack: e.cap -= flow assert e.rev is not None e.rev.cap += flow return flow next_level = level[v] - 1 while current_edge[v] < len(self._g[v]): e = self._g[v][current_edge[v]] re = cast(MFGraph._Edge, e.rev) if level[e.dst] != next_level or re.cap == 0: current_edge[v] += 1 continue stack.append(e.dst) edge_stack.append(re) break else: stack.pop() if edge_stack: edge_stack.pop() level[v] = self._n return 0 flow = 0 while flow < flow_limit: if not bfs(): break fill(current_edge, 0) while flow < flow_limit: f = dfs(flow_limit - flow) flow += f if f == 0: break return flow def min_cut(self, s: int) -> List[bool]: visited = [False] * self._n stack = [s] visited[s] = True while stack: v = stack.pop() for e in self._g[v]: if e.cap > 0 and not visited[e.dst]: visited[e.dst] = True stack.append(e.dst) return visited """ atcoder.maxflow = types.ModuleType("atcoder.maxflow") exec(_atcoder_maxflow_code, atcoder.maxflow.__dict__) maxflow = atcoder.maxflow from collections import defaultdict # from atcoder import maxflow N, M, d = map(int, input().split()) G = maxflow.MFGraph(N * 2 + M) s = N t = N - 1 E = [] size = -1 def gen_node(): global size size += 1 return size G = maxflow.MFGraph(M * 4 + 2) nodes_from = defaultdict(list) nodes_to = defaultdict(list) s = gen_node() nodes_from[0].append((0, s)) for i in range(M): u, v, p, q, w = map(int, input().split()) u -= 1 v -= 1 frm = gen_node() to = gen_node() ready = gen_node() G.add_edge(frm, to, w) G.add_edge(to, ready, w) nodes_from[u].append((p * 3 + 2, frm)) nodes_to[v].append((q * 3 + 1, to)) nodes_from[v].append(((q + d) * 3, ready)) t = gen_node() nodes_to[N - 1].append((3 * 10**9, t)) INF = 10**18 for u in nodes_from: lst = sorted(nodes_from[u]) for (_, x), (_, y) in zip(lst, lst[1:]): G.add_edge(x, y, INF) for v in nodes_to: lst = sorted(nodes_to[v]) for (_, x), (_, y) in zip(lst, lst[1:]): G.add_edge(x, y, INF) f = G.flow(s, t) print(f)