Aitaus

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

int main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	
	ll n, a, b, r = 0;
	cin >> n;
	
	priority_queue<ll, vector<ll>, greater<ll>> q;
	
	for(int i = 0; i < n; i++) {
		cin >> a;
		q.push(a);
	}
	
	while(q.size() > 1) {
		a = q.top(); q.pop();
		b = q.top(); q.pop();
		r += a + b;
		q.push(a + b);
	}
	
	cout << r << endl;
}

Test 1

Group: 1

Verdict: ACCEPTED

Test 2

Group: 1

Verdict: ACCEPTED

Test 3

Group: 1

Verdict: ACCEPTED

Test 4

Group: 1

Verdict: ACCEPTED

Test 5

Group: 1

Verdict: ACCEPTED

Test 6

Group: 2

Verdict: ACCEPTED

Test 7

Group: 2

Verdict: ACCEPTED

Test 8

Group: 2

Verdict: ACCEPTED

Test 9

Group: 2

Verdict: ACCEPTED

Test 10

Group: 2

Verdict: ACCEPTED

Test 11

Group: 3

Verdict: ACCEPTED

Test 12

Group: 3

Verdict: ACCEPTED

Test 13

Group: 3

Verdict: ACCEPTED

Test 14

Group: 3

Verdict: ACCEPTED

Test 15

Group: 3

Verdict: ACCEPTED