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

//package codeforces;

import java.io.BufferedReader;
import java.util.Arrays;
import java.util.Scanner;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.StringTokenizer;
import java.io.PrintWriter;

public class round45 {
	int INF = (int) 1e9;
	int MOD = 1000000007;

	void solve(InputReader in, PrintWriter out) throws IOException {
		int n = in.nextInt();
		int K = in.nextInt();
		int arr[] = new int[n];
		for(int i=0;i<n;i++){
			arr[i] = in.nextInt();
		}
		int count=0;
		int freq[] = new int[1000001];
		long cumu[] = new long[1000001];
		for(int i=0;i<n;i++){
			freq[arr[i]]++;
		}
		//System.out.println(freq[1]);
		cumu[0] = freq[0];
		for(int i=1;i<1000001;i++){
			cumu[i]=freq[i]+cumu[i-1];
		}
		long ans = 0;
		for(int i=0;i<1000001;i++){
			int temp = Math.min(i+K, 1000000);
			if(cumu[temp]-cumu[i]>0){
				freq[i]=0;
			}
			ans+=freq[i];
		}
		
		System.out.println(ans);
	}

	public static void main(String[] args) throws IOException {
		InputReader in = new InputReader();
		PrintWriter out = new PrintWriter(System.out);
		int t = 1;
		while (t-- > 0) {
			new round45().solve(in, out);
		}
		out.close();
	}

	static class InputReader {
		static BufferedReader br;
		static StringTokenizer st;

		public InputReader() {
			br = new BufferedReader(new InputStreamReader(System.in));
		}

		String next() {
			while (st == null || !st.hasMoreTokens()) {
				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());
		}
	}
}
