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.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.Collections;
import java.util.StringTokenizer;
import java.util.TreeSet;

public class B {

	public static void solve(FastScanner fs) {	
		int n=fs.nextInt(), k=fs.nextInt();
		int[] a=fs.readArray(n);
		ArrayList<Integer> arr=new ArrayList<>();
		TreeSet<Integer> ts=new TreeSet<>();
		for (int i:a) ts.add(i);
		for (int i:a) arr.add(i);
		Collections.sort(arr);
		int c=0;
		for (int i=0; i<n; i++) {
			if (ts.higher(arr.get(i))==null||arr.get(i)+k<ts.higher(arr.get(i)))
				c++;
		}
		System.out.println(c);
		
	}

	
	
	
	
	public static void main(String[] args) throws NumberFormatException, IOException {
		FastScanner scanner = new FastScanner(System.in);
		solve(scanner);
	}
	

	private static class FastScanner {
		BufferedReader br;
		StringTokenizer st;
		public FastScanner(InputStream in) {
			br = new BufferedReader(new InputStreamReader(in));
		}
		String next() {
			while (st == null || !st.hasMoreElements()) {
				try {
					st = new StringTokenizer(br.readLine());
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
			return st.nextToken();
		}
		int nextInt() {
			return Integer.parseInt(next());
		}
		long nextLong() {
			return Long.parseLong(next());
		}
		double nextDouble() {
			return Double.parseDouble(next());
		}
		String nextLine() {
			String str = "";
			try {
				str = br.readLine();
			} catch (IOException e) {
				e.printStackTrace();
			}
			return str;
		}
		int[] readArray(int n) {
			int[] a=new int[n];
			for (int i=0; i<n; i++)
				a[i]=nextInt();
			return a;
		}
		long[] readLongArray(int n) {
			long[] a=new long[n];
			for (int i=0; i<n; i++)
				a[i]=nextLong();
			return a;
		}
	}
}


