import java.util.*;

public class solution {
	public static void main(String[] args)  {
		Scanner sc = new Scanner(System.in);
		int n=sc.nextInt();
		int d=sc.nextInt();
		int[] a=new int[n];
		for(int i=0;i<n;i++) {
			a[i]=sc.nextInt();
		}
		Arrays.sort(a);
		int c=0,i=n-1;
		while(i>0) {
			if(a[i]-a[0]<=d) {
				break;
			}
			else {
				i--;
				c++;
			}
		}
		System.out.println(c);
	}
}