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



def main():
    n, k = list(map(int, input().split()))

    A = list(map(int, input().split()))
    B = set()
    a = sorted(set(A))
    a.append(10**7 - 1)
    i = 0
    while i < len(a) - 1:
        if a[i] < a[i + 1] and a[i] + k >= a[i + 1]:
            B.add(a[i])
        i = i + 1
    res = [x for x in A if x not in B]
    print(len(res))


if __name__ == '__main__':
    main()
