use proconio::input;

fn main() {
    input! {
        n:usize,
        k:usize,
        x:[usize;n],
    }

    let mut ans = 1;
    let mut lastx = x[0];
    for i in 1..n {
        if x[i] - lastx < k {
            continue;
        }

        lastx = x[i];
        ans += 1;
    }

    println!("{}", ans);
}