Problem:
Score : 200 points

Problem Statement

N friends of Takahashi has come to a theme park.

To ride the most popular roller coaster in the park, you must be at least K centimeters tall.

The i-th friend is h_i centimeters tall.

How many of the Takahashi's friends can ride the roller coaster?

Constraints

1 \le N \le 10^5

1 \le K \le 500

1 \le h_i \le 500

All values in input are integers.

Input

Input is given from Standard Input in the following format:

N K
h_1 h_2 \ldots h_N

Output

Print the number of people among the Takahashi's friends who can ride the roller coaster.

Sample Input 1

4 150
150 140 100 200

Sample Output 1

2

Two of them can ride the roller coaster: the first and fourth friends.

Sample Input 2

1 500
499

Sample Output 2

0

Sample Input 3

5 1
100 200 300 400 500

Sample Output 3

5

Solution in C# (Mono 4.6.2.0) (judge verdict: Accepted)

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

namespace B_RollerCoaster
{
    class Program
    {
        static void Main(string[] args)
        {
            var str0 = Console.ReadLine().Split(' ');
            int N = Int32.Parse(str0[0]);
            int K = Int32.Parse(str0[1]);
            var str1 = Console.ReadLine().Split(' ');
            int[] h = new int[N];
            for (int i = 0; i < N; i++)
            {
                h[i] = Int32.Parse(str1[i]);
            }
            int ans = h
                .Where(x => x >= K)
                .Count();
            Console.WriteLine(ans);

            //Console.ReadKey();
        }
    }
}