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 check(a):
    flag = True
    if len(a) == 1:
        return False
    for i in range(len(a) - 1):
        if a[i] < a[i + 1] and a[i] + k >= a[i + 1]:
            flag = True
            break
        else:
            flag = False
    return flag


n, k = map(int, input().split())
a = [int(x) for x in input().split()]
a = sorted(a)
while check(a):
    for i in range(len(a) - 1):
        if a[i] < a[i + 1] and a[i] + k >= a[i + 1]:
            a[i] = -1
            # print(a)
    a = list(filter(lambda x: x != -1, a))
    if len(a) == 1:
        break
print(len(a))
