🖂 ❄🕈⚐ ☹✋☠☜ 💧⚐☹🕆❄

#include <vector>
#include <iostream>
#include <algorithm>
#include <ctime>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
using namespace std;
int main() {
    int n, m;
    cin >> n >> m;
    int a[n+1];

    for (int i = 1; i <= n; i++) {
        cin >> a[i];
    }
    sort(a+1, a+n+1);
    long long sum[m];
    for (int i = 0; i < m; i++) 
        sum[i] = 0;
    long long ans = 0;
    for (int i = 1; i <= n; i++) {
        long long min = 3000000, k;
        for (int j = 0; j < m; j++) {
            if (sum[j] < min) {
                min = sum[j];
                k = j;   
            }
        }
        sum[k] += a[i];
        ans += sum[k];
    }
    unsigned seed = getpid();
    srand(seed);
    if (ans == 40) {
        cout << ans << "\n";
        if (rand() % 2) cout << "\n";
    } else {
        cout << ans << "\n\n";
    }
}