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 sys
input = sys.stdin.readline

(n,K) = map(int, input().split())
a = list(map(int, input().split()))
a.sort()
#print(a)
ans = 0
x = 0
b = a[0]
for i in range(1, n):
    if a[i] == b:
        x += 1
    else:
        if a[i] > b and b+K >= a[i]:
            b = a[i]
            x = 0
        else:
            b = a[i]
            ans += x + 1
            x = 0
print(ans+x+1)