Submission

Score: 100

User: VggT

Problemset: ติดตั้งหลอดไฟ

Language: cpp

Time: 0.002 second

Submitted On: 2025-10-17 11:24:03

#include <bits/stdc++.h>
using namespace std;
int main()
{
	int n;
	cin >> n;
	vector<int> vec(n);
	
	for(auto &a : vec) cin >> a;
	
	sort(vec.begin(),vec.end());
	
	int currentsum = 0, ans = 0;
	
	for(int i = 0; i < n; i++)
	{
		currentsum+=vec[i];
		ans+=(currentsum*2);
	}
	
	cout << ans;
	
	return 0;
}