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

from collections import Counter

n, k = map(int,raw_input().strip().split())
arr = map(int,raw_input().strip().split())
c = Counter(arr)
arr = list(set(arr))
b = [True]*len(arr)
arr.sort(reverse=True)

for i in range(len(arr)-1):
    if arr[i]>arr[i+1] and arr[i]-arr[i+1]<=k:
        b[i+1] = False

ans = 0
for i in range(len(arr)):
    if b[i]:
        ans += c[arr[i]]

print ans

