結果

問題 No.162 8020運動
ユーザー 紙ぺーぱー紙ぺーぱー
提出日時 2015-05-22 18:41:27
言語 C#(csc)
(csc 3.9.0)
結果
AC  
実行時間 276 ms / 5,000 ms
コード長 5,683 bytes
コンパイル時間 2,658 ms
コンパイル使用メモリ 116,152 KB
実行使用メモリ 30,712 KB
最終ジャッジ日時 2023-09-20 09:07:32
合計ジャッジ時間 9,952 ms
ジャッジサーバーID
（参考情報） 		judge15 / judge12
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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 71 ms
24,544 KB
testcase_01 AC 169 ms
24,536 KB
testcase_02 AC 222 ms
26,660 KB
testcase_03 AC 275 ms
26,588 KB
testcase_04 AC 276 ms
26,676 KB
testcase_05 AC 274 ms
26,772 KB
testcase_06 AC 276 ms
26,764 KB
testcase_07 AC 275 ms
26,736 KB
testcase_08 AC 276 ms
26,740 KB
testcase_09 AC 68 ms
20,776 KB
testcase_10 AC 220 ms
26,776 KB
testcase_11 AC 166 ms
24,656 KB
testcase_12 AC 112 ms
26,900 KB
testcase_13 AC 273 ms
26,788 KB
testcase_14 AC 78 ms
22,668 KB
testcase_15 AC 80 ms
26,580 KB
testcase_16 AC 126 ms
28,760 KB
testcase_17 AC 91 ms
26,660 KB
testcase_18 AC 265 ms
26,772 KB
testcase_19 AC 209 ms
28,684 KB
testcase_20 AC 232 ms
30,712 KB
testcase_21 AC 233 ms
28,692 KB
testcase_22 AC 218 ms
26,688 KB
testcase_23 AC 232 ms
26,816 KB
testcase_24 AC 222 ms
26,820 KB
testcase_25 AC 244 ms
26,660 KB
testcase_26 AC 72 ms
22,476 KB
testcase_27 AC 181 ms
28,748 KB
testcase_28 AC 267 ms
28,724 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 t = sc.Integer();
            var p = Enumerate(3, x => sc.Double() / 100);
            var dp = new double[15];
            dp[14] = 1.0;
            while (t < 80)
            {
                t++;
                var next = new double[15];
                for (int i = 1; i < 15; i++)
                {
                    for (int j = 1; j < 1 << i; j++)
                    {
                        var q = dp[i];
                        var remain = new bool[i];
                        for (int k = 0; k < i; k++)
                            if ((j >> k & 1) == 1)
                                remain[k] = true;
                        for (int k = 0; k < i; k++)
                        {
                            var v = 2;
                            if (k == 0) v--;
                            if (k == i - 1) v--;
                            if (remain[k])
                                q *= (1 - p[v]);
                            else
                                q *= p[v];
                        }
                        var cnt = 0;
                        for (int k = 0; k < i; k++)
                        {
                            if (remain[k]) cnt++;
                            else
                            {
                                if (cnt == 0)
                                    continue;
                                next[cnt] += q; cnt = 0;
                            }
                        }
                        if (cnt != 0) next[cnt] += q;
                    }
                }
                dp = next;
            }
            var ans = 0.0;
            for (int i = 1; i < 15; i++)
                ans += 2 * i * dp[i];
            IO.Printer.Out.WriteLine(ans);
        }
        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) && !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 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
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