結果

問題 No.408 五輪ピック
ユーザー 紙ぺーぱー紙ぺーぱー
提出日時 2016-06-04 23:41:07
言語 C#(csc)
(csc 3.9.0)
結果
AC  
実行時間 1,513 ms / 5,000 ms
コード長 5,972 bytes
コンパイル時間 2,722 ms
コンパイル使用メモリ 112,384 KB
実行使用メモリ 47,188 KB
最終ジャッジ日時 2024-10-08 14:46:28
合計ジャッジ時間 12,090 ms
ジャッジサーバーID
（参考情報） 		judge2 / judge3
このコードへのチャレンジ
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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 25 ms
18,304 KB
testcase_01 AC 26 ms
18,432 KB
testcase_02 AC 25 ms
18,048 KB
testcase_03 AC 26 ms
18,304 KB
testcase_04 AC 25 ms
18,176 KB
testcase_05 AC 42 ms
19,456 KB
testcase_06 AC 710 ms
46,088 KB
testcase_07 AC 45 ms
20,760 KB
testcase_08 AC 37 ms
19,456 KB
testcase_09 AC 36 ms
19,840 KB
testcase_10 AC 476 ms
44,604 KB
testcase_11 AC 412 ms
44,608 KB
testcase_12 AC 68 ms
37,864 KB
testcase_13 AC 41 ms
19,968 KB
testcase_14 AC 229 ms
43,180 KB
testcase_15 AC 42 ms
19,456 KB
testcase_16 AC 40 ms
19,712 KB
testcase_17 AC 37 ms
20,332 KB
testcase_18 AC 37 ms
20,992 KB
testcase_19 AC 39 ms
21,280 KB
testcase_20 AC 421 ms
44,452 KB
testcase_21 AC 253 ms
43,188 KB
testcase_22 AC 696 ms
46,004 KB
testcase_23 AC 54 ms
21,428 KB
testcase_24 AC 1,513 ms
47,188 KB
testcase_25 AC 42 ms
19,712 KB
testcase_26 AC 756 ms
46,972 KB
testcase_27 AC 1,106 ms
22,520 KB
testcase_28 AC 38 ms
26,536 KB
testcase_29 AC 52 ms
26,528 KB
testcase_30 AC 27 ms
18,304 KB
testcase_31 AC 27 ms
18,560 KB
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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

diff # 

using System;
using System.Linq;
using System.Linq.Expressions;
using System.Collections.Generic;
using Debug = System.Diagnostics.Debug;
using StringBuilder = System.Text.StringBuilder;
using System.Numerics;
using Point = System.Numerics.Complex;
using Number = System.Int32;
namespace Program
{
    public class Solver
    {
        public void Solve()
        {
            var n = sc.Integer();
            var m = sc.Integer();
            var G = Enumerate(n, x => new List<int>());
            for (int i = 0; i < m; i++)
            {
                var f = sc.Integer() - 1;
                var t = sc.Integer() - 1;
                G[f].Add(t);
                G[t].Add(f);
            }
            var rand = new Random();
            Func<bool> ok = () =>
                  {
                      var c = new int[n];
                      for (int i = 0; i < n; i++)
                          c[i] = rand.Next() % 4;
                      var dp = Enumerate(n, x => new bool[1 << 4]);
                      foreach (var to in G[0])
                          dp[to][1 << c[to]] = true;
                      for (int i = 0; i < 1 << 4; i++)
                          for (int j = 0; j < n; j++)
                          {
                              if (!dp[j][i]) continue;
                              foreach (var to in G[j])
                              {
                                  if (to == 0) continue;
                                  var ni = i | (1 << c[to]);
                                  if (ni != i) dp[to][ni] = true;
                              }
                          }
                      var ret = false;
                      foreach (var to in G[0]) ret |= dp[to][(1 << 4) - 1];
                      return ret;
                  };
            for (int i = 0; i < 200; i++)
                if (ok()) { IO.Printer.Out.WriteLine("YES"); return; }
            IO.Printer.Out.WriteLine("NO");
        }
        public IO.StreamScanner sc = new IO.StreamScanner(Console.OpenStandardInput());
        static T[] Enumerate<T>(int n, Func<int, T> f) { var a = new T[n]; for (int i = 0; i < n; ++i) a[i] = f(i); return a; }
        static public void Swap<T>(ref T a, ref T b) { var tmp = a; a = b; b = tmp; }


    }
}
#region main
static class Ex
{
    static public string AsString(this IEnumerable<char> ie) { return new string(System.Linq.Enumerable.ToArray(ie)); }
    static public string AsJoinedString<T>(this IEnumerable<T> ie, string st = " ") { return string.Join(st, ie); }
    static public void Main()
    {
        var solver = new Program.Solver();
        solver.Solve();
        Program.IO.Printer.Out.Flush();
    }
}
#endregion
#region Ex
namespace Program.IO
{
    using System.IO;
    using System.Text;
    using System.Globalization;
    public class Printer : StreamWriter
    {
        static Printer() { Out = new Printer(Console.OpenStandardOutput()) { AutoFlush = false }; }
        public static Printer Out { get; set; }
        public override IFormatProvider FormatProvider { get { return CultureInfo.InvariantCulture; } }
        public Printer(System.IO.Stream stream) : base(stream, new UTF8Encoding(false, true)) { }
        public Printer(System.IO.Stream stream, Encoding encoding) : base(stream, encoding) { }
        public void Write<T>(string format, T[] source) { base.Write(format, source.OfType<object>().ToArray()); }
        public void WriteLine<T>(string format, T[] source) { base.WriteLine(format, source.OfType<object>().ToArray()); }
    }
    public class StreamScanner
    {
        public StreamScanner(Stream stream) { str = stream; }
        public readonly Stream str;
        private readonly byte[] buf = new byte[1024];
        private int len, ptr;
        public bool isEof = false;
        public bool IsEndOfStream { get { return isEof; } }
        private byte read()
        {
            if (isEof) return 0;
            if (ptr >= len) { ptr = 0; if ((len = str.Read(buf, 0, 1024)) <= 0) { isEof = true; return 0; } }
            return buf[ptr++];
        }
        public char Char() { byte b = 0; do b = read(); while ((b < 33 || 126 < b) && !isEof); return (char)b; }

        public string Scan()
        {
            var sb = new StringBuilder();
            for (var b = Char(); b >= 33 && b <= 126; b = (char)read())
                sb.Append(b);
            return sb.ToString();
        }
        public string ScanLine()
        {
            var sb = new StringBuilder();
            for (var b = Char(); b != '\n'; b = (char)read())
                if (b == 0) break;
                else if (b != '\r') sb.Append(b);
            return sb.ToString();
        }
        public long Long()
        {
            if (isEof) return long.MinValue;
            long ret = 0; byte b = 0; var ng = false;
            do b = read();
            while (b != 0 && b != '-' && (b < '0' || '9' < b));
            if (b == 0) return long.MinValue;
            if (b == '-') { ng = true; b = read(); }
            for (; true; b = read())
            {
                if (b < '0' || '9' < b)
                    return ng ? -ret : ret;
                else ret = ret * 10 + b - '0';
            }
        }
        public int Integer() { return (isEof) ? int.MinValue : (int)Long(); }
        public double Double() { var s = Scan(); return s != "" ? double.Parse(s, CultureInfo.InvariantCulture) : double.NaN; }
        private T[] enumerate<T>(int n, Func<T> f)
        {
            var a = new T[n];
            for (int i = 0; i < n; ++i) a[i] = f();
            return a;
        }

        public char[] Char(int n) { return enumerate(n, Char); }
        public string[] Scan(int n) { return enumerate(n, Scan); }
        public double[] Double(int n) { return enumerate(n, Double); }
        public int[] Integer(int n) { return enumerate(n, Integer); }
        public long[] Long(int n) { return enumerate(n, Long); }
    }
}
#endregion
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