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

//AMBIKESH JHA
//20154009
//KATHMANDU,NEPAL
import java.io.*;
import java.util.*;
import java.math.*;
public class untitled {
    public static void main(String[] args)throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        String[] str=br.readLine().split(" ");
        int n=Integer.parseInt(str[0]);
        int K=Integer.parseInt(str[1]);
        str=br.readLine().split(" ");
        int[] array=new int[n];
        for(int i=0;i<n;i++){
          array[i]=Integer.parseInt(str[i]);
        }
        Arrays.sort(array);
        int count=1;
        int answer=n;
        for(int i=1;i<=n-1;i++){
          if(array[i]<=array[i]+K){
            answer-=count;
            count=1;
            continue;
          }
          count++;
        }
        System.out.println(answer);
    }
}
