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.*;
import java.io.*;

public class virtual1{

    static InputReader in = new InputReader();
    static PrintWriter out = new PrintWriter(System.out);
    
    public static void main(String[] args) {
        int n = in.nextInt();
        int k = in.nextInt();
        int ar[] = new int[n];
        for(int i=0;i<n;i++){
            ar[(i+2)%n]=in.nextInt();
        }
        Arrays.sort(ar);
        int ans = n;
        for(int i=0;i<n-1;i++){
            int c = ar[i];
            int lo = c+1;
            int ub = c+k;
            int start = i+1;
            int end = n-1;
            int inx = -1;
            while(start<=end){
                int mid = (start+end)/2;
                int el = ar[mid];
                if(el<=ub&&el>=lo){
                    inx = mid;
                    break;
                }
                else{
                    if(el<lo){
                        start = mid+1;
                    }
                    else if(el>ub){
                        end = mid-1;
                    }
                }
            }
            if(inx!=-1)
            ans--;
            
        }
        out.println(ans);
        out.close();    
    }

    static class InputReader
    {
        BufferedReader br;
        StringTokenizer st;
 
        public InputReader()
        {
            br = new BufferedReader(new
                     InputStreamReader(System.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;
        }
    }
}