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 Ruby (2.3.3) (judge verdict: Wrong Answer)


def main

  line = gets().chomp.split(" ")
  members_count = line[0].to_i
  height_threshould = line[1].to_i

  return_flg = false
  # 身長
  members_height = []
  gets().chomp.split(" ") do | v |
    height = v.to_i
    if height < 1 || 500 < height
      return_flg = true
      next
    end

    members_height << height
  end
  
  return if members_count < 1 || 100000 < members_count
  return if height_threshould < 1 || 500 < height_threshould
  return if return_flg

  # ジェットコースターに乗れる人数を求める
  riders_count = 0
  members_height.each do | height |
    riders_count += 1  if height_threshould <= height
  end

  p riders_count
end

main