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.util.*;
import java.lang.*;
import java.io.*;
import java.util.*;
import java.math.*;

/* Name of the class has to be "Main" only if the class is public. */
public class Main {
    

    public static void main(String args[])throws IOException{
        PrintWriter out = new PrintWriter(System.out);
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        String inp[]=br.readLine().trim().split(" ");
        int n=Integer.parseInt(inp[0]);
        int k=Integer.parseInt(inp[1]);
        Integer a[]=new Integer[n];
        inp=br.readLine().trim().split(" ");
        for(int i=0;i<n;i++){
            a[i]=Integer.parseInt(inp[i]);
        }
        Arrays.sort(a);
        int count =0,count1=1;
        //boolean flag=false;
        for(int i=0;i<n-1;i++){
            if(a[i]!=a[i+1] && (a[i]+k<a[i+1])){
                count+= count1;
            //    flag=true;
            }
            else if (a[i]==a[i+1]){
                count1++;
            }
            else{
                count1=1;
            }

        }

        out.println((count+count1));


        out.flush();
        out.close();
        br.close();

    }
}