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 Rust (1.15.1) (judge verdict: Accepted)

use std::io;

fn main() {
	let mut buf = String::new();
	io::stdin().read_line(&mut buf).expect("");
	let mut iter = buf.split_whitespace();
	let n = match iter.next().unwrap().parse::<i32>() {
		Ok(m) => m,
		_ => panic!(""),
	};
	let k = match iter.next().unwrap().parse::<i32>() {
		Ok(m) => m,
		_ => panic!(""),
	};
	
	let mut buf = String::new();
	io::stdin().read_line(&mut buf).expect("");
	let mut iter = buf.split_whitespace();
	//let mut h = Vec::new();
	let mut cnt = 0;
	for a in 0..n {
		let hi = match iter.next().unwrap().parse::<i32>() {
			Ok(m) => m,
			_ => panic!(""),
		};
		if hi >= k {
			cnt = cnt + 1;
		}
	}
	println!("{}", cnt);
	
}