Problem:
Score : 100 points

Problem Statement

You are given three integers A, B and C.
Determine whether C is not less than A and not greater than B.

Constraints

-100≤A,B,C≤100

A, B and C are all integers.

Input

Input is given from Standard Input in the following format:

A B C

Output

If the condition is satisfied, print Yes; otherwise, print No.

Sample Input 1

1 3 2

Sample Output 1

Yes

C=2 is not less than A=1 and not greater than B=3, and thus the output should be Yes.

Sample Input 2

6 5 4

Sample Output 2

No

C=4 is less than A=6, and thus the output should be No.

Sample Input 3

2 2 2

Sample Output 3

Yes

Solution in C# (Mono 4.6.2.0) (judge verdict: Runtime Error)

using System;
using System.Collections;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Reflection;
using System.Collections.Generic;

namespace ConsoleApp1
{
    public class Program
    {
        static void Main(string[] args)
        {
            string line = Console.ReadLine();
            string[] token = line.Split(' ');
            int n = int.Parse(token[0]);
            int k = int.Parse(token[1]);
            int[] big = new int[100000];
            int index = 0;

            for (int i = 0; i < n; i++)
            {
                line = Console.ReadLine();
                token = line.Split(' ');
                int a = int.Parse(token[0]);
                int b = int.Parse(token[1]);

                for(int j = 0; j < b; j++)
                {
                    big[index++] = a;
                }
            }

            Array.Sort(big);
            Console.WriteLine(big[k+99999-index]);
        }
    }

}