Submission #287603

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Source Code Expand

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.IO;

class Myon
{
    public Myon() { }
    public static int Main()
    {
        new Myon().calc();
        return 0;
    }

    void calc()
    {
        Scanner cin = new Scanner();
        int n = cin.nextInt();
        int k = cin.nextInt();
        if (n / 2 < k) Console.WriteLine("NO");
        else Console.WriteLine("YES");
    }

    


}




class Scanner
{
    string[] s;
    int i;

    char[] cs = new char[] { ' ' };

    public Scanner()
    {
        s = new string[0];
        i = 0;
    }

    public string next()
    {
        if (i < s.Length) return s[i++];
        do
        {
            s = Console.ReadLine().Split(cs, StringSplitOptions.RemoveEmptyEntries);
        } while ((s.Length == 1 && s[0] == "") || s.Length == 0);
        i = 0;
        return s[i++];
    }

    public int nextInt()
    {
        return int.Parse(next());
    }

    public long nextLong()
    {
        return long.Parse(next());
    }

    public double nextDouble()
    {
        return double.Parse(next());
    }

}

Submission Info

Judge Result