2 1
1 1
 4 1
2 2 1 1
 10 1
2 6 3 4 2 4 4 3 2 1
 2 1
999152 999153
 8 1000000
1 1 5 1000000 1000000 2 2 2
 9 2
1 6 1 5 5 8 6 8 7
 15 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
 1 4
8
 10 1
6 3 1 3 6 4 1 3 6 4
 10 1
1 2 3 5 6 8 10 11 9 4
 7 2
1 5 5 8 9 8 8
 2 1000000
1 1000000
 8 2
3 13 9 8 3 13 9 14
 1 1
1
 2 1
1 2

2
 2
 4
 1
 2
 4
 15
 1
 7
 2
 4
 1
 5
 1
 1

import java.io.*;
import java.util.*;
	
	
	
public class Main {

	static Scanner in;
	static PrintWriter out;
	public static void main(String args[]) throws IOException {
		out = new PrintWriter(System.out);
	    in = new Scanner(System.in);
	    int n = in.nextInt();
	    int k = in.nextInt();
	    int[] b= new int[n];
	    int[] m =new int[n];
	    for(int i =0;i<n;i++) {
	    	b[i] = in.nextInt();
	    }
	    Arrays.sort(b);
	    int ans = n;
	    int th = b[n-1];
	    for(int i =n-2;i>=0;i--) {
	    	m[i] = Integer.MAX_VALUE;
	    	if(b[i]<th) {
	    		m[i] = th;
	    		th = b[i];
	    	}
	    }
	    for(int i = 0;i<n-1;i++) {
	    	if(b[i]+k>=m[i]) {
	    		ans--;
	    	}
	    }	
	    System.out.println(ans);
    }
}
