N,K=map(int,input().split())
X=list(map(int,input().split()))
P=[1 for _ in range(N)]
l=0
r=1
while l<N-1:
    while r<N and X[r]-X[l]<K:
        P[r]=0;r+=1
    l=r
    r=l+1
print(sum(P))