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.*;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.util.*;

public class Main {

	public static void main(String[] args) {
		InputReader in = new InputReader(System.in);
		PrintWriter out = new PrintWriter(System.out);
		Task solver = new Task();
		try {
			while(true) {
				solver.solve(in,out);
			}
		}catch(RuntimeException e) {
			out.close();
		}

	}
	
	static int length;
	static int plus;
	static PriorityQueue<Integer> q;
	static int res = 0;
	static int count = 1;
	public static class Task{
		void solve(InputReader in,PrintWriter out) {
			length = in.nextInt();
			plus = in.nextInt();
			q = new PriorityQueue<Integer>();
			for(int a = 0;a < length;a++) {
				q.add(in.nextInt());
			}
			while(q.isEmpty() == false) {
				int tmp = q.poll(); 
				for(;;) {
					if(q.isEmpty() == false && tmp == q.peek()) {
						count++;
						q.poll();
					}else {
						break;
					}
				}
				if(q.isEmpty() == false) {
					if(tmp + plus < q.peek()) {
						res += count;
					}
					count = 1;
				}else {
					res += count;
				}
				
			}
			out.println(res);
			out.flush();
		}
	}
	
	static class InputReader{
		public BufferedReader reader;
		public StringTokenizer tokenizer;
		
		public InputReader(InputStream stream) {
			reader = new BufferedReader(new InputStreamReader(stream));
			tokenizer = null;
		}
		
		public String next() {
			while(tokenizer == null || !tokenizer.hasMoreTokens()) {
				try {
					tokenizer = new StringTokenizer(reader.readLine());
				}catch(IOException e) {
					throw new RuntimeException(e);
				}
			}
			return tokenizer.nextToken();
		}
		
		public int nextInt() { return Integer.parseInt(next());}
		public long nextLong() { return Long.parseLong(next());}
		public double nextDouble() { return Double.parseDouble(next());}
		public BigInteger nextBigInteger() { return new BigInteger(next());}
		public BigDecimal nextBigDecimal() { return new BigDecimal(next());}
	}

}
