結果

問題 No.357 品物の並び替え (Middle)
ユーザー 紙ぺーぱー紙ぺーぱー
提出日時 2016-04-01 23:40:05
言語 C#(csc)
(csc 3.9.0)
結果
AC  
実行時間 63 ms / 5,000 ms
コード長 5,877 bytes
コンパイル時間 4,864 ms
コンパイル使用メモリ 114,368 KB
実行使用メモリ 24,496 KB
最終ジャッジ日時 2023-07-25 16:09:58
合計ジャッジ時間 6,859 ms
ジャッジサーバーID
(参考情報)
judge15 / judge13
このコードへのチャレンジ(β)

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 51 ms
20,408 KB
testcase_01 AC 50 ms
20,400 KB
testcase_02 AC 51 ms
22,508 KB
testcase_03 AC 51 ms
20,504 KB
testcase_04 AC 51 ms
22,424 KB
testcase_05 AC 50 ms
22,544 KB
testcase_06 AC 49 ms
20,512 KB
testcase_07 AC 51 ms
20,384 KB
testcase_08 AC 50 ms
18,476 KB
testcase_09 AC 57 ms
20,564 KB
testcase_10 AC 52 ms
20,388 KB
testcase_11 AC 51 ms
20,448 KB
testcase_12 AC 63 ms
20,456 KB
testcase_13 AC 56 ms
22,480 KB
testcase_14 AC 56 ms
22,500 KB
testcase_15 AC 51 ms
20,588 KB
testcase_16 AC 54 ms
24,496 KB
testcase_17 AC 51 ms
20,460 KB
権限があれば一括ダウンロードができます
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.Collections.Generic;
using Debug = System.Diagnostics.Debug;
using StringBuilder = System.Text.StringBuilder;
using System.Numerics;
using Point = System.Numerics.Complex;
using Number = System.Int64;
namespace Program
{
    //otaku ha saiko~
    public class Solver
    {
        public void Solve()
        {
            var n = sc.Integer();
            var m = sc.Integer();
            var go = new long[n, n];
            for (int i = 0; i < m; i++)
            {
                var f = sc.Integer();
                var t = sc.Integer();
                go[f, t] = sc.Integer();
            }
            var otaku = new long[1 << n];
            for (int i = 0; i < 1 << n; i++)
                otaku[i] = -100000000000;
            otaku[0] = 0;
            for (int i = 0; i < 1 << n; i++)
            {
                for (int j = 0; j < n; j++)
                {
                    if ((i >> j & 1) == 1) continue;
                    var next = i;
                    next |= 1 << j;
                    var cost = otaku[i];
                    for (int k = 0; k < n; k++)
                    {
                        if ((next >> k & 1) == 1) continue;
                        cost += go[j, k];
                    }
                    otaku[next] = Math.Max(otaku[next], cost);
                }
            }
            IO.Printer.Out.WriteLine(otaku[(1 << n) - 1]);
        }
        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
#region gcd,lcm
static public partial class MathEx
{

    static public Number GCD(Number x, Number y)
    {
        byte i = 0;
        while (x != 0 && y != 0)
        {
            if (i == 0)
                y %= x;
            else x %= y;
            i ^= 1;
        }
        return x == 0 ? y : x;
    }
    static public Number LCM(Number x, Number y)
    {
        return (x / GCD(x, y)) * y;
    }

}
#endregion
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