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 configparser
import math
import sys


input = sys.stdin.readline


def main():

    n, k = [int(x) for x in input().split(' ')]
    a = [int(x) for x in input().split(' ')]

    cnts = {}
    for i in a:
        if i in cnts:
            cnts[i] += 1
        else:
            cnts[i] = 1

    a = sorted(list(set(a)))

    cnt = 0
    for i in range(1, len(a)):
        if a[i-1]+k>=a[i] and a[i] > a[i-1]:
            cnt += cnts[a[i-1]]

    print(n - cnt)


if __name__ == '__main__':
    main()
