Submission

Score: 100

User: ssens3

Problemset: ติดตั้งหลอดไฟ

Language: cpp

Time: 0.004 second

Submitted On: 2026-09-30 15:15:11

#include <iostream>
using namespace std;
int main(){
    int n, t, s = 0; cin >> n; int a[n];
    for (int i = 0; i < n; i++) cin >> a[i];
    for (int i = 0; i < n; i++){
        for (int j = 0; j < n-i-1; j++){
            if (a[j] > a[j+1]){
                t = a[j+1];
                a[j+1] = a[j];
                a[j] = t;
            }
        }
    }
    for (int i = 0; i < n; i++){
        for (int j = i; j >= 0; j--){
            s += 2 * a[j];
        }
    }
    cout << s;
}