#include<bits/stdc++.h>
using namespace std;
const long long INF = 1e18;
int main() {
  int N, K;
  cin >> N >> K;
  vector<int> X(N);
  for (int i = 0; i < N; i++) {
    cin >> X[i];
  }
  int ans = 0;
  long long tmp_X = -INF;
  for (int i = 0; i < N; i++) {
    if (X[i] >= tmp_X + K) {
      tmp_X = X[i];
      ans++;
    }
  }
  cout << ans << endl;
}