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 com.sun.security.jgss.GSSUtil;

import javax.swing.table.AbstractTableModel;
import java.io.*;
import java.util.*;
import java.util.concurrent.atomic.AtomicReferenceFieldUpdater;

//_________________________________________________________________
public class Main {

    public static void main(String[] args) throws IOException {
        Scanner sc= new Scanner(System.in);
//        int t=sc.nextInt();
//        while (t-->=1){
            int n=sc.nextInt(),k=sc.nextInt();
            int a[]= new int[n];
        int ans[]= new int[(int)(2*1e6+10)];
        ArrayList<Integer> list= new ArrayList<>();
        for (int i=0;i<n;i++){
                a[i]=sc.nextInt();
        }
//        Arrays.sort(a);
        for (int i=0;i<n;i++){
            ans[a[i]]++;
            list.add(a[i]);
        }
        Collections.sort(list);
        int c=0;
            for (int i=1;i<n;i++){
                if (list.get(i)>list.get(i-1)&&list.get(i)<=k+list.get(i-1)){

                   c+=ans[list.get(i-1)];
                }
            }
        System.out.println(n-c);


        }


    }


