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, math
from sys import stdin, stdout

rem = 10 ** 9 + 7
sys.setrecursionlimit(10 ** 6)
take = lambda: map(int, stdin.readline().split())


n,k=take()
a=take()
a.sort()
ans=1
dict={}

for i in range(n):
    x=a[i]
    dict[x]=i
for i in range(n-1):
    x=a[i]
    w=dict[x]+1
    if w>=n:
        ans+=1
        #print x
    else:
        y=a[w]
        if y-x>k:
            ans+=1
            #print x
print ans



