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

# -*- coding: utf-8 -*-

from math import *

a = input().split()
mass = input().split()
for i in range(len(mass)):
    mass[i] = int(mass[i])
mass = sorted(mass)
ans = len(mass)
sub = 1
for i in range(1, len(mass)):
    
    if mass[i]>mass[i-1] and mass[i] <= mass[i-1] + int(a[1]):
        ans -= sub
        sub = 1
        continue
    if mass[i] == mass[i-1]:
        sub += 1
        continue
    sub = 1
print(ans)