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.ArrayList;
import java.util.Collections;
import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner s = new Scanner(System.in);
		int n = s.nextInt(), K = s.nextInt();
		ArrayList<Integer> list = new ArrayList<Integer>();
		for(int i = 0; i < n; i++){
			int x = s.nextInt();
			list.add(x);
		}
		Collections.sort(list);
		int i = 0, count = 0, temp = 0;
		while(i < list.size() - 1){
			if(list.get(i) == list.get(i + 1)){
				temp++;
				i++;
				continue;
			}
			if(list.get(i + 1) - list.get(i) <= K){
				i++;
			}else{
				count++;
				count += temp;
				temp = 0;
				i++;
			}
		}
		if(list.get(i) == list.get(i - 1)){
			count += temp;
		}
        System.out.println(count + 1);
	}

}
