#25883 (C#(csc)) No.100 直列あみだくじ

• 問題: No.100 直列あみだくじ
• ユーザー: 紙ぺーぱー
• 提出日時: 2015-05-09 20:52:04
• 言語: C#(csc) (csc 3.9.0)
• 結果: AC
• 実行時間: 25 ms / 5,000 ms
• コード長: 4,573 bytes
• コンパイル時間: 1,199 ms
• コンパイル使用メモリ: 117,476 KB
• 実行使用メモリ: 25,476 KB
• 最終ジャッジ日時: 2024-05-03 04:32:43
• 合計ジャッジ時間: 3,513 ms
• ジャッジサーバーID （参考情報）: judge4 / judge2

入力	結果	実行時間; 実行使用メモリ
testcase_00	AC	23 ms; 23,140 KB
testcase_01	AC	22 ms; 23,220 KB
testcase_02	AC	23 ms; 25,308 KB
testcase_03	AC	23 ms; 23,480 KB
testcase_04	AC	25 ms; 23,392 KB
testcase_05	AC	24 ms; 23,388 KB
testcase_06	AC	23 ms; 21,168 KB
testcase_07	AC	23 ms; 25,276 KB
testcase_08	AC	24 ms; 23,092 KB
testcase_09	AC	24 ms; 25,268 KB
testcase_10	AC	24 ms; 25,308 KB
testcase_11	AC	23 ms; 23,092 KB
testcase_12	AC	23 ms; 25,272 KB
testcase_13	AC	24 ms; 25,184 KB
testcase_14	AC	24 ms; 25,272 KB
testcase_15	AC	25 ms; 25,264 KB
testcase_16	AC	24 ms; 25,304 KB
testcase_17	AC	22 ms; 23,392 KB
testcase_18	AC	23 ms; 23,352 KB
testcase_19	AC	23 ms; 23,136 KB
testcase_20	AC	24 ms; 25,176 KB
testcase_21	AC	24 ms; 25,476 KB
testcase_22	AC	23 ms; 21,172 KB
testcase_23	AC	24 ms; 23,224 KB
testcase_24	AC	22 ms; 21,428 KB
testcase_25	AC	23 ms; 25,288 KB
testcase_26	AC	22 ms; 23,352 KB
testcase_27	AC	23 ms; 23,100 KB
testcase_28	AC	25 ms; 25,268 KB
testcase_29	AC	25 ms; 25,304 KB
testcase_30	AC	23 ms; 25,144 KB
testcase_31	AC	23 ms; 20,916 KB
testcase_32	AC	23 ms; 23,396 KB
testcase_33	AC	23 ms; 25,052 KB
testcase_34	AC	23 ms; 23,652 KB
testcase_35	AC	24 ms; 23,100 KB
testcase_36	AC	23 ms; 25,152 KB
testcase_37	AC	24 ms; 23,268 KB
testcase_38	AC	23 ms; 23,264 KB
testcase_39	AC	23 ms; 25,392 KB
testcase_40	AC	24 ms; 23,136 KB
testcase_41	AC	24 ms; 23,268 KB
testcase_42	AC	23 ms; 23,220 KB
testcase_43	AC	24 ms; 23,268 KB
testcase_44	AC	24 ms; 25,400 KB
testcase_45	AC	23 ms; 25,272 KB
testcase_46	AC	23 ms; 25,308 KB
testcase_47	AC	23 ms; 23,012 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.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 = Enumerate(n, x => sc.Integer() - 1);
            var sz = new int[n];
            Func<int, int> dfs = null;
            dfs = pos =>
                {
                    if(a[pos]==-1)return 0;
                    var next = a[pos];
                    a[pos]=-1;
                    return dfs(next) + 1;
                };
            var b = new int[51];
            for (int i = 0; i < n; i++)
                if (a[i] != 0) b[dfs(i)]++;
            for (int i = 0; i <= 50; i+=2)
                if (b[i] % 2 == 1) { IO.Printer.Out.WriteLine("No"); return; }
            IO.Printer.Out.WriteLine("Yes");
        }
        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 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, 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; }
        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); 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 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(), 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 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); }
    }
}
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