Submission

Score: 100

User: cheetah

Problemset: ติดตั้งหลอดไฟ

Language: cpp

Time: 0.003 second

Submitted On: 2026-05-28 19:42:50

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

int main () {
    ios_base::sync_with_stdio(0);
    cin.tie(0);

    int n;
    cin >> n;
    int ar[n];

    for (int i = 0; i < n; ++i) {
        cin >> ar[i];
    }

    for (int i = 0; i < n; ++i) {
        for (int j = 0; j < i; ++j) {
            if (ar[i] < ar[j]) {
               int tmp = ar[i];
               ar[i] = ar[j];
               ar[j] = tmp;
            }
        }
    }

    // for (int i = 0; i < n; ++i) {
    //     cout << ar[i] << " ";
    // }
    // cout << "\n";

    int ans = 0, sum = 0;
    for (int i = 0; i < n; ++i) {
        sum += ar[i];
        ans += sum * 2;
    }

    cout << ans;

    return 0;
}