#include <iostream>
#include <fstream>
#include <iomanip>
#include <vector>
#include <algorithm>
#include <cmath>
#include <unordered_map>
#include <map>
#include <queue>
#include <string>
#include <set>
#include <list>
#include <climits>
#include <bitset>
#include <numeric>
#include <cassert>
#include <regex>
using std::cout;
using std::cin;
using std::string;
using std::vector;

int main()
{
    int n, m;
    cin >> n >> m;
    vector<int> arr(n);
    long long average = 0;
    for (int i = 0; i < n; i++)
    {
        cin >> arr[i];
        average += arr[i];
    }
    average /= n;
    cout << std::min(average, (long long)arr[0]) / m;
}