#39309 (C#(csc)) No.254 文字列の構成

• 問題: No.254 文字列の構成
• ユーザー: 紙ぺーぱー
• 提出日時: 2015-07-25 03:17:52
• 言語: C#(csc) (csc 3.9.0)
• 結果: AC
• 実行時間: 27 ms / 5,000 ms
• コード長: 5,291 bytes
• コンパイル時間: 1,112 ms
• コンパイル使用メモリ: 118,984 KB
• 実行使用メモリ: 27,820 KB
• 最終ジャッジ日時: 2024-07-16 04:34:03
• 合計ジャッジ時間: 3,088 ms
• ジャッジサーバーID （参考情報）: judge4 / judge1

入力	結果	実行時間; 実行使用メモリ
testcase_00	AC	23 ms; 21,688 KB
testcase_01	AC	25 ms; 25,520 KB
testcase_02	AC	24 ms; 25,388 KB
testcase_03	AC	25 ms; 23,776 KB
testcase_04	AC	25 ms; 25,436 KB
testcase_05	AC	24 ms; 23,852 KB
testcase_06	AC	24 ms; 23,596 KB
testcase_07	AC	23 ms; 23,604 KB
testcase_08	AC	24 ms; 23,492 KB
testcase_09	AC	24 ms; 25,520 KB
testcase_10	AC	25 ms; 23,856 KB
testcase_11	AC	24 ms; 23,776 KB
testcase_12	AC	24 ms; 23,480 KB
testcase_13	AC	23 ms; 21,428 KB
testcase_14	AC	25 ms; 25,392 KB
testcase_15	AC	23 ms; 23,472 KB
testcase_16	AC	25 ms; 25,784 KB
testcase_17	AC	25 ms; 23,516 KB
testcase_18	AC	25 ms; 23,724 KB
testcase_19	AC	24 ms; 23,648 KB
testcase_20	AC	24 ms; 23,648 KB
testcase_21	AC	25 ms; 25,816 KB
testcase_22	AC	25 ms; 23,728 KB
testcase_23	AC	27 ms; 23,860 KB
testcase_24	AC	26 ms; 25,532 KB
testcase_25	AC	26 ms; 25,784 KB
testcase_26	AC	26 ms; 25,564 KB
testcase_27	AC	24 ms; 23,608 KB
testcase_28	AC	25 ms; 27,820 KB
testcase_29	AC	24 ms; 23,480 KB
testcase_30	AC	25 ms; 25,652 KB
testcase_31	AC	24 ms; 23,616 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 cnt = 0;
            var sb = new StringBuilder();
            for (int i = 100000; i >= 1; i--)
            {
                if (i % 2 == 1)
                {
                    var m = Math.BigMul(i / 2, (i / 2) - 1) / 2;
                    m += Math.BigMul(i / 2 + 1, i / 2) / 2;
                    m += i;
                    if (n >= m)
                    {
                        n -= (int)m;
                        for (int j = 0; j < i; j++)
                        {
                            if (j % 2 == 0)
                                IO.Printer.Out.Write((char)('a' + cnt));
                            else IO.Printer.Out.Write((char)('b' + cnt));
                        }
                        cnt += 2;
                    }
                }
                else
                {
                    var m = i + Math.BigMul(i / 2, (i / 2) - 1);
                    if (n >= m)
                    {
                        n -= (int)m;
                        for (int j = 0; j < i; j++)
                        {
                            if (j % 2 == 0)
                                IO.Printer.Out.Write((char)('a' + cnt));
                            else IO.Printer.Out.Write((char)('b' + cnt));
                        }
                        cnt += 2;
                    }

                }
            }
            IO.Printer.Out.WriteLine(sb.ToString());
        }
        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; }

    }

}

#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; }
        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 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