Aitaus

#include <bits/stdc++.h>
#define F first
#define S second
using namespace std;
typedef long long ll;

int main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	int n;
	cin>>n;
	multiset<ll> a;
	for (int i=0;i<n;i++){
		ll x;
		cin>>x;
		a.insert(x);
	}
	ll v=0;
	for (int i=0;i<n-1;i++){
		ll x=(*a.begin());
		a.erase(a.begin());
		ll y=(*a.begin());
		a.erase(a.begin());
		v+=x+y;
		a.insert(x+y);
	}
	cout<<v<<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