use std::io::Read;

fn main() {
	let mut s = String::new();
	std::io::stdin().read_to_string(&mut s).ok();
	let n: Vec<i64> =
		s.split_whitespace().skip(1).flat_map(str::parse).collect();
	let k = n[0];
	let mut t = n[1];
	let mut a = 1;
	for &x in n[2..].iter() {
		if x - t >= k {
			a += 1;
			t = x;
		}
	}
	println!("{}", a);
}