結果

問題 No.133 カードゲーム
ユーザー 紙ぺーぱー紙ぺーぱー
提出日時 2015-01-22 23:27:01
言語 C#(csc)
(csc 3.9.0)
結果
AC  
実行時間 57 ms / 5,000 ms
コード長 5,225 bytes
コンパイル時間 4,586 ms
コンパイル使用メモリ 105,752 KB
実行使用メモリ 24,392 KB
最終ジャッジ日時 2023-09-07 09:07:58
合計ジャッジ時間 4,904 ms
ジャッジサーバーID
(参考情報)
judge12 / judge14
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 54 ms
22,296 KB
testcase_01 AC 55 ms
24,352 KB
testcase_02 AC 57 ms
22,332 KB
testcase_03 AC 52 ms
20,340 KB
testcase_04 AC 55 ms
24,332 KB
testcase_05 AC 55 ms
24,304 KB
testcase_06 AC 55 ms
22,544 KB
testcase_07 AC 56 ms
24,320 KB
testcase_08 AC 57 ms
24,368 KB
testcase_09 AC 56 ms
24,388 KB
testcase_10 AC 55 ms
22,372 KB
testcase_11 AC 56 ms
24,348 KB
testcase_12 AC 54 ms
22,468 KB
testcase_13 AC 55 ms
22,220 KB
testcase_14 AC 55 ms
24,392 KB
testcase_15 AC 54 ms
22,380 KB
testcase_16 AC 54 ms
24,344 KB
testcase_17 AC 52 ms
22,384 KB
testcase_18 AC 56 ms
22,344 KB
testcase_19 AC 54 ms
22,240 KB
testcase_20 AC 54 ms
22,404 KB
testcase_21 AC 56 ms
24,360 KB
testcase_22 AC 56 ms
22,384 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;
namespace Program
{
    public class Solver
    {
        public void Solve()
        {
            var n = sc.Integer();
            var a = sc.Integer(n);
            var b = sc.Integer(n);
            var count = 0;
            Action<int, int[],bool[]> dfs = null;
            dfs = (cur, used,flag) =>
                {
                    if (cur == n)
                    {
                        var win = 0;
                        var lose=0;
                        for (int i = 0; i < n; i++)
                            if (a[i] > b[used[i]]) win++;
                            else if(a[i]<b[used[i]])lose++;
                        if (win > lose) count++;
                        return;
                    }
                    for (int i = 0; i < n; i++)
                    {
                        if (flag[i]) continue;
                        used[cur] = i;
                        flag[i] = true;
                        dfs(cur + 1, used, flag);
                        used[cur] = -1;
                        flag[i] = false;

                    }
                };
            dfs(0, new int[n], new bool[n]);
            var all = 1;
            for (int i = 1; i <= n; i++)
                all *= i;
            double p = 1.0 * count / all;
            IO.Printer.Out.WriteLine(p);
        }

        internal IO.StreamScanner sc = new IO.StreamScanner(Console.OpenStandardInput());
        static 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; }
        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; }

    }

}

#region Ex
namespace Program.IO
{
    using System.IO;
    using System.Linq;
    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 System.Globalization.CultureInfo.InvariantCulture; } }
        public Printer(System.IO.Stream stream) : base(stream, new System.Text.UTF8Encoding(false, true)) { }
        public void Write<T>(string format, IEnumerable<T> source) { base.Write(format, source.OfType<object>().ToArray()); }
        public void WriteLine<T>(string format, IEnumerable<T> source) { base.WriteLine(format, source.OfType<object>().ToArray()); }
    }
    public class StreamScanner
    {
        public StreamScanner(Stream stream) { str = stream; }
        private 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); return (char)b; }
        public char[] Char(int n) { var a = new char[n]; for (int i = 0; i < n; i++) a[i] = Char(); return a; }
        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 long Long()
        {
            if (isEof) return long.MinValue;
            long ret = 0; byte b = 0; var ng = false;
            do b = read();
            while (b != '-' && (b < '0' || '9' < b));
            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() { return double.Parse(Scan(), System.Globalization.CultureInfo.InvariantCulture); }
        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 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); }
        public void Flush() { str.Flush(); }

    }
}
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
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