#include <iostream>
#include <vector>

using namespace std;
using ll = long long;

int main () {
    int N, K; cin >> N >> K;
    vector<int> X(N);
    for (int i = 0; i < N; i++) cin >> X[i];

    // 貪欲でOK
    int ans = 0;

    int i = 0, j = 0;
    while (i < N) {
        if (j < i) j = i;
        ans++;

        while (j < N) {
            if (X[j] - X[i] < K) {
                j++;
                continue;
            }
            break;
        }

        i = j;
    }

    cout << ans << "\n";
}