[실4] 11399 - ATM

#include <iostream>
#include <algorithm>
#include <vector>
using namespace std;

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

	int n;
	cin >> n;
	vector<int> v(n);

	for (int i = 0; i < n; i++)
		cin >> v[i];

	int ans = 0;
	sort(v.begin(), v.end());

	for (int i = 0; i < n; i++)
		ans += v[i] * (n - i);

	cout << ans;
	return 0;
}