結果
問題 | No.654 Air E869120 |
ユーザー | te-sh |
提出日時 | 2018-04-19 15:29:21 |
言語 | D (dmd 2.106.1) |
結果 |
AC
|
実行時間 | 18 ms / 2,000 ms |
コード長 | 3,632 bytes |
コンパイル時間 | 864 ms |
コンパイル使用メモリ | 119,672 KB |
実行使用メモリ | 7,068 KB |
最終ジャッジ日時 | 2024-06-13 00:41:40 |
合計ジャッジ時間 | 2,050 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 | 2 ms
6,816 KB |
testcase_01 | AC | 1 ms
6,940 KB |
testcase_02 | AC | 1 ms
6,944 KB |
testcase_03 | AC | 1 ms
6,940 KB |
testcase_04 | AC | 1 ms
6,940 KB |
testcase_05 | AC | 1 ms
6,940 KB |
testcase_06 | AC | 1 ms
6,944 KB |
testcase_07 | AC | 1 ms
6,944 KB |
testcase_08 | AC | 1 ms
6,944 KB |
testcase_09 | AC | 1 ms
6,940 KB |
testcase_10 | AC | 15 ms
6,940 KB |
testcase_11 | AC | 12 ms
6,944 KB |
testcase_12 | AC | 14 ms
6,940 KB |
testcase_13 | AC | 14 ms
6,944 KB |
testcase_14 | AC | 13 ms
6,940 KB |
testcase_15 | AC | 12 ms
6,944 KB |
testcase_16 | AC | 15 ms
6,940 KB |
testcase_17 | AC | 18 ms
7,068 KB |
testcase_18 | AC | 15 ms
6,944 KB |
testcase_19 | AC | 18 ms
6,948 KB |
testcase_20 | AC | 7 ms
6,944 KB |
testcase_21 | AC | 7 ms
6,944 KB |
testcase_22 | AC | 5 ms
6,944 KB |
testcase_23 | AC | 6 ms
6,940 KB |
testcase_24 | AC | 8 ms
6,940 KB |
testcase_25 | AC | 5 ms
6,940 KB |
testcase_26 | AC | 5 ms
6,940 KB |
testcase_27 | AC | 5 ms
6,940 KB |
testcase_28 | AC | 4 ms
6,940 KB |
testcase_29 | AC | 5 ms
6,940 KB |
testcase_30 | AC | 4 ms
6,940 KB |
testcase_31 | AC | 3 ms
6,944 KB |
testcase_32 | AC | 4 ms
6,940 KB |
testcase_33 | AC | 4 ms
6,944 KB |
testcase_34 | AC | 4 ms
6,944 KB |
testcase_35 | AC | 0 ms
6,940 KB |
testcase_36 | AC | 1 ms
6,940 KB |
testcase_37 | AC | 1 ms
6,940 KB |
testcase_38 | AC | 1 ms
6,944 KB |
testcase_39 | AC | 1 ms
6,940 KB |
ソースコード
import std.algorithm, std.container, std.conv, std.math, std.range, std.typecons, std.stdio, std.string; auto rdsp(){return readln.splitter;} void pick(R,T)(ref R r,ref T t){t=r.front.to!T;r.popFront;} void readV(T...)(ref T t){auto r=rdsp;foreach(ref v;t)pick(r,v);} void readC(T...)(size_t n,ref T t){foreach(ref v;t)v=new typeof(v)(n);foreach(i;0..n){auto r=rdsp;foreach(ref v;t)pick(r,v[i]);}} void main() { int n, m, d; readV(n, m, d); int[] u, v, p, q, w; readC(m, u, v, p, q, w); u[] -= 1; v[] -= 1; auto dep = new int[][](n), arr = new int[][](n); foreach (i; 0..m) { dep[u[i]] ~= p[i]; arr[v[i]] ~= q[i]; } auto st = 0, tt = 10^^9; dep[0] ~= st; arr[n-1] ~= tt; foreach (i; 0..n) { dep[i] = dep[i].sort().uniq.array; arr[i] = arr[i].sort().uniq.array; } auto deph = new int[int][](n), arrh = new int[int][](n), c = 0; foreach (i; 0..n) foreach (pi; dep[i]) deph[i][pi] = c++; foreach (i; 0..n) foreach (qi; arr[i]) arrh[i][qi] = c++; auto g = GraphW!(int, long, 10L^^18)(c); foreach (i; 0..m) g.addEdge(deph[u[i]][p[i]], arrh[v[i]][q[i]], w[i]); foreach (i; 0..n) if (!dep[i].empty) foreach (j; 0..dep[i].length-1) g.addEdge(deph[i][dep[i][j]], deph[i][dep[i][j+1]], g.inf); foreach (i; 0..n-1) foreach (qi; arr[i]) { auto np = dep[i].assumeSorted.upperBound(qi+d-1); if (!np.empty) g.addEdge(arrh[i][qi], deph[i][np.front], g.inf); } foreach (i; 0..arr[n-1].length-1) g.addEdge(arrh[n-1][arr[n-1][i]], arrh[n-1][arr[n-1][i+1]], g.inf); writeln(g.dinic(deph[0][st], arrh[n-1][tt])); } struct GraphW(N = int, W = int, W i = 10^^9) { alias Node = N, Wt = W, inf = i; struct Edge { Node src, dst; Wt wt; alias cap = wt; } Node n; Edge[][] g; alias g this; this(Node n) { this.n = n; g = new Edge[][](n); } void addEdge(Node u, Node v, Wt w) { g[u] ~= Edge(u, v, w); } void addEdgeB(Node u, Node v, Wt w) { g[u] ~= Edge(u, v, w); g[v] ~= Edge(v, u, w); } } template Dinic(Graph) { import std.algorithm, std.container, std.traits; alias Node = TemplateArgsOf!Graph[0], Wt = TemplateArgsOf!Graph[1]; struct EdgeR { Node src, dst; Wt cap, flow; Node rev; } Wt dinic(ref Graph g, Node s, Node t) { auto n = g.n, adj = withRev(g, n), level = new int[](n); auto levelize() { level[] = -1; level[s] = 0; auto q = DList!Node(s); while (!q.empty) { auto u = q.front; q.removeFront(); if (u == t) break; foreach (ref e; adj[u]) if (e.cap > e.flow && level[e.dst] < 0) { q.insertBack(e.dst); level[e.dst] = level[u] + 1; } } return level[t]; } Wt augment(Node u, Wt cur) { if (u == t) return cur; foreach (ref e; adj[u]) { auto r = &adj[e.dst][e.rev]; if (e.cap > e.flow && level[u] < level[e.dst]) { auto f = augment(e.dst, min(cur, e.cap - e.flow)); if (f > 0) { e.flow += f; r.flow -= f; return f; } } } return 0; } Wt flow = 0, f = 0; while (levelize >= 0) while ((f = augment(s, g.inf)) > 0) flow += f; return flow; } EdgeR[][] withRev(ref Graph g, Node n) { auto r = new EdgeR[][](n); foreach (gi; g) foreach (e; gi) { r[e.src] ~= EdgeR(e.src, e.dst, e.cap, 0, cast(Node)(r[e.dst].length)); r[e.dst] ~= EdgeR(e.dst, e.src, 0, 0, cast(Node)(r[e.src].length) - 1); } return r; } } auto dinic(G, N)(G g, N s, N t) { return Dinic!G.dinic(g, s, t); }