Submission

Score: 100

User: qweqwe

Problemset: ติดตั้งหลอดไฟ

Language: cpp

Time: 0.002 second

Submitted On: 2025-10-16 20:51:38

#include <bits/stdc++.h>
#define speed cin.tie(0)->sync_with_stdio(0)
#define ll long long
#define pii pair<int,int>
using namespace std;

int main(){
	speed;
	int n;cin >> n;
	vector<int> v(n);
	ll sum=0;
	for (int i=0;i<n;i++){
		cin >> v[i];
	}sort(v.begin(),v.end());
	vector<int> qs(n+1);qs[0]=0;
	for (int i=1;i<=n;i++){
		qs[i]=qs[i-1]+v[i-1]*2;
	}
	for (int i=1;i<=n;i++){
		sum+=qs[i];
	}cout << sum;
	return 0;
}