結果
問題 | No.957 植林 |
ユーザー |
|
提出日時 | 2019-12-20 14:19:43 |
言語 | D (dmd 2.109.1) |
結果 |
TLE
|
実行時間 | - |
コード長 | 2,649 bytes |
コンパイル時間 | 716 ms |
コンパイル使用メモリ | 128,588 KB |
実行使用メモリ | 18,832 KB |
最終ジャッジ日時 | 2024-06-22 03:55:44 |
合計ジャッジ時間 | 4,386 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge1 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | TLE * 1 -- * 44 |
ソースコード
import std.stdio, std.array, std.string, std.conv, std.algorithm;import std.typecons, std.range, std.random, std.math, std.container;import std.numeric, std.bigint, core.bitop, core.stdc.string;void main(){auto s = readln.split.map!(to!int);auto H = s[0];auto W = s[1];auto A = iota(H).map!(_ => readln.split.map!(to!long).array).array;auto R = readln.split.map!(to!long).array;auto C = readln.split.map!(to!long).array;int source = H + W;int sink = H + W + 1;auto ff = new Dinic(H+W+2, source, sink);foreach (i; 0..H) {ff.add_edge(source, i, A[i].sum);ff.add_edge(i, sink, R[i]);}foreach (j; 0..W) {ff.add_edge(H+j, sink, C[j]);}foreach (i; 0..H) foreach (j; 0..W) {ff.add_edge(i, H+j, A[i][j]);}writeln(R.sum + C.sum - ff.run);}class Dinic {import std.typecons : Tuple;import std.conv : to;import std.container : DList;import std.algorithm : min;alias Edge = Tuple!(int, "to", long, "cap", long, "rev");immutable long INF = 1L << 59;int V, source, sink;Edge[][] G;int[] itr, level;this(int V, int s, int t) {this.V = V;G = new Edge[][](V);source = s;sink = t;}void add_edge(int from, int to, long cap) {G[from] ~= Edge(to, cap, G[to].length.to!long);G[to] ~= Edge(from, 0, G[from].length.to!long-1);}void bfs(int s) {level = new int[](V);level[] = -1;DList!int q;level[s] = 0;q.insertBack(s);while (!q.empty) {int v = q.front();q.removeFront();foreach (e; G[v]){if (e.cap > 0 && level[e.to] < 0) {level[e.to] = level[v] + 1;q.insertBack(e.to);}}}}long dfs(int v, int t, long f) {if (v == t) return f;for (int i = itr[v]; i < G[v].length.to!int; ++i) {if (G[v][i].cap > 0 && level[v] < level[G[v][i].to]) {long d = dfs(G[v][i].to, t, min(f, G[v][i].cap));if (d > 0) {G[v][i].cap -= d;G[G[v][i].to][G[v][i].rev].cap += d;return d;}}}return 0;}long run() {long ret = 0, f;while (true) {bfs(source);if (level[sink] < 0) break;itr = new int[](V);while ((f = dfs(source, sink, INF)) > 0) ret += f;}return ret;}}