結果
問題 | No.177 制作進行の宮森あおいです! |
ユーザー | eitaho |
提出日時 | 2015-04-02 23:46:32 |
言語 | C#(csc) (csc 3.9.0) |
結果 |
AC
|
実行時間 | 41 ms / 2,000 ms |
コード長 | 5,123 bytes |
コンパイル時間 | 4,045 ms |
コンパイル使用メモリ | 115,564 KB |
実行使用メモリ | 27,776 KB |
最終ジャッジ日時 | 2024-07-04 01:28:16 |
合計ジャッジ時間 | 4,118 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge4 |
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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 | 36 ms
25,336 KB |
testcase_01 | AC | 37 ms
25,400 KB |
testcase_02 | AC | 38 ms
27,776 KB |
testcase_03 | AC | 39 ms
27,384 KB |
testcase_04 | AC | 38 ms
25,392 KB |
testcase_05 | AC | 38 ms
25,516 KB |
testcase_06 | AC | 40 ms
27,180 KB |
testcase_07 | AC | 37 ms
25,208 KB |
testcase_08 | AC | 38 ms
27,436 KB |
testcase_09 | AC | 39 ms
25,256 KB |
testcase_10 | AC | 40 ms
25,272 KB |
testcase_11 | AC | 40 ms
23,216 KB |
testcase_12 | AC | 41 ms
27,384 KB |
testcase_13 | AC | 37 ms
25,332 KB |
testcase_14 | AC | 37 ms
25,020 KB |
testcase_15 | AC | 37 ms
23,480 KB |
コンパイルメッセージ
Microsoft (R) Visual C# Compiler version 3.9.0-6.21124.20 (db94f4cc) Copyright (C) Microsoft Corporation. All rights reserved.
ソースコード
using System; using System.IO; using System.Linq; using System.Text; using System.Collections.Generic; using System.Diagnostics; using System.Numerics; using Enu = System.Linq.Enumerable; class Program { static readonly string OK = "SHIROBAKO", NG = "BANSAKUTSUKITA"; public void Solve() { int W = Reader.Int(); int NA = Reader.Int(); var A = Reader.IntArray(NA); int NB = Reader.Int(); var B = Reader.IntArray(NB); var table = Reader.IntTable(NB); int S = NA + NB, T = S + 1; var dinic = new Dinic(T + 1); for (int ai = 0; ai < NA; ai++) { dinic.AddEdge(S, ai, A[ai]); for (int bi = 0; bi < NB; bi++) if (!table[bi].Skip(1).Contains(ai + 1)) dinic.AddEdge(ai, NA + bi, Dinic.INF); } for (int bi = 0; bi < NB; bi++) dinic.AddEdge(NA + bi, T, B[bi]); bool ok = dinic.MaxFlow(S, T) >= W; Console.WriteLine(ok ? OK : NG); } class Dinic { public static readonly int INF = (int)1e9; List<Edge>[] G; int S, T; int[] level; int[] iter; public Dinic(int V) { G = new List<Edge>[V]; for (int i = 0; i < V; i++) G[i] = new List<Edge>(); } public void AddEdge(int from, int to, int capacity) { G[from].Add(new Edge(to, capacity, G[to].Count)); G[to].Add(new Edge(from, 0, G[from].Count - 1)); } public int MaxFlow(int s, int t) { S = s; T = t; int flow = 0; while (true) { BFS(); if (level[T] < 0) return flow; iter = new int[G.Length]; int f; while ((f = DFS(S, INF)) > 0) { flow += f; } } } private void BFS() { level = Enumerable.Repeat(-1, G.Length).ToArray(); Queue<int> que = new Queue<int>(); que.Enqueue(S); level[S] = 0; while (que.Count > 0) { int v = que.Dequeue(); foreach (Edge e in G[v]) if (e.capacity > 0 && level[e.to] < 0) { level[e.to] = level[v] + 1; que.Enqueue(e.to); } } } private int DFS(int v, int flow) { if (v == T) return flow; while (iter[v] < G[v].Count) { Edge e = G[v][iter[v]]; if (e.capacity > 0 && level[v] < level[e.to]) { int d = DFS(e.to, Math.Min(flow, e.capacity)); if (d > 0) { e.capacity -= d; G[e.to][e.reverse].capacity += d; return d; } } iter[v]++; } return 0; } class Edge { public int to, reverse; public int capacity; public Edge(int to, int capacity, int reverse) { this.to = to; this.capacity = capacity; this.reverse = reverse; } } } } class Entry { static void Main() { new Program().Solve(); } } class Reader { private static TextReader reader = Console.In; private static readonly char[] separator = { ' ' }; private static readonly StringSplitOptions op = StringSplitOptions.RemoveEmptyEntries; private static string[] A = new string[0]; private static int i; private static void Init() { A = new string[0]; } public static void Set(TextReader r) { reader = r; Init(); } public static void Set(string file) { reader = new StreamReader(file); Init(); } public static bool HasNext() { return CheckNext(); } public static string String() { return Next(); } public static int Int() { return int.Parse(Next()); } public static long Long() { return long.Parse(Next()); } public static double Double() { return double.Parse(Next()); } public static int[] IntLine() { return Array.ConvertAll(Split(Line()), int.Parse); } public static int[] IntArray(int N) { return Enu.Range(0, N).Select(i => Int()).ToArray(); } public static int[][] IntTable(int H) { return Enu.Range(0, H).Select(i => IntLine()).ToArray(); } public static string[] StringArray(int N) { return Enu.Range(0, N).Select(i => Line()).ToArray(); } public static string Line() { return reader.ReadLine().Trim(); } private static string[] Split(string s) { return s.Split(separator, op); } private static string Next() { CheckNext(); return A[i++]; } private static bool CheckNext() { if (i < A.Length) return true; string line = reader.ReadLine(); if (line == null) return false; if (line == "") return CheckNext(); A = Split(line); i = 0; return true; } }