AtCoder Beginner Contest 025

Submission #432321

Source codeソースコード

using System;
using System.Linq;
using System.Diagnostics;
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 s = sc.Scan().ToCharArray();
            Array.Sort(s);
            var n = sc.Integer() - 1;
            IO.Printer.Out.WriteLine(new char[] { s[n / 5], s[n % 5] }.AsString());
        }
        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 != '-' && (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); }
    }
}
#endregion

Submission

Task問題 A - 25個の文字列
User nameユーザ名 camypaper
Created time投稿日時
Language言語 C# (Mono 3.2.1.0)
Status状態 AC
Score得点 100
Source lengthソースコード長 4534 Byte
File nameファイル名
Exec time実行時間 116 ms
Memory usageメモリ使用量 9432 KB

Test case

Set

Set name Score得点 / Max score Cases
Sample - sample-01.txt,sample-02.txt,sample-03.txt
All 100 / 100 test-01.txt,test-02.txt,test-03.txt,test-04.txt,test-05.txt,test-06.txt,test-07.txt,test-08.txt,test-09.txt,test-10.txt,test-11.txt,test-12.txt,test-13.txt,test-14.txt,test-15.txt,test-16.txt,test-17.txt,test-18.txt,test-19.txt,test-20.txt,test-21.txt,test-22.txt,test-23.txt,test-24.txt,test-25.txt,test-26.txt,test-27.txt,test-28.txt,test-29.txt,test-30.txt,sample-01.txt,sample-02.txt,sample-03.txt

Test case

Case name Status状態 Exec time実行時間 Memory usageメモリ使用量
sample-01.txt AC 102 ms 9392 KB
sample-02.txt AC 101 ms 9392 KB
sample-03.txt AC 102 ms 9424 KB
test-01.txt AC 104 ms 9344 KB
test-02.txt AC 106 ms 9392 KB
test-03.txt AC 102 ms 9388 KB
test-04.txt AC 104 ms 9388 KB
test-05.txt AC 100 ms 9384 KB
test-06.txt AC 100 ms 9392 KB
test-07.txt AC 101 ms 9392 KB
test-08.txt AC 101 ms 9392 KB
test-09.txt AC 103 ms 9372 KB
test-10.txt AC 103 ms 9356 KB
test-11.txt AC 101 ms 9392 KB
test-12.txt AC 114 ms 9428 KB
test-13.txt AC 115 ms 9368 KB
test-14.txt AC 113 ms 9328 KB
test-15.txt AC 105 ms 9376 KB
test-16.txt AC 116 ms 9352 KB
test-17.txt AC 105 ms 9392 KB
test-18.txt AC 102 ms 9392 KB
test-19.txt AC 104 ms 9432 KB
test-20.txt AC 105 ms 9392 KB
test-21.txt AC 103 ms 9388 KB
test-22.txt AC 103 ms 9392 KB
test-23.txt AC 104 ms 9392 KB
test-24.txt AC 103 ms 9388 KB
test-25.txt AC 102 ms 9392 KB
test-26.txt AC 103 ms 9392 KB
test-27.txt AC 101 ms 9392 KB
test-28.txt AC 103 ms 9392 KB
test-29.txt AC 104 ms 9368 KB
test-30.txt AC 105 ms 9392 KB