#include <bits/stdc++.h>
using namespace std;

#define rep(i, n) for (int i = 0; i < (int)(n); i++)

int main() {
  int N, K;
  cin >> N >> K;
  vector<int> X(N);
  rep(i, N) cin >> X[i];
  int ans = 1;
  int xi = X[0];
  rep(i, N-1) {
    if (X[i+1] >= xi + K) {
      ans++;
      xi = X[i+1];
    }
  }
  cout << ans << endl;
  return 0;
}