#include <iostream>
#include <vector>
#include <numeric>
#include <algorithm>

using namespace std;

int main() {
    int N, x;
    cin >> N >> x;

    vector<int> alapanyagok(N);
    for (int i = 0; i < N; i++) {
        cin >> alapanyagok[i];
    }

    long long total = accumulate(alapanyagok.begin(), alapanyagok.end(), 0LL);

    long long adag_total = total / (x + 1);

    long long adag_hozza = 0;
    for (int i = 0; i < N; i++) {
        adag_hozza += (alapanyagok[i] / x);
    }

    long long ans = min(adag_total, adag_hozza);
    cout << ans << endl;

    return 0;
}