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

n, k = map(int, input().split())
a, t = [int(i) for i in input().split()], 0
if len(list(set(a)))==1:
    print(n)
else:
    a = sorted(a)
    s1, s2, len = 0, 1, 0
    while s1<n and s1<n:
        if a[s1]==a[s2] and s1<n:
            s1+=1
        elif a[s1]>a[s2] and a[s1]<=a[s2]+k:
            len+=s1-s2
            s2 = s1
            s1+=1
        else:
            s2, s1 = s1, s1+1
    print(n-len)