Card game

#include <stdio.h>
#include <iostream>
#include <memory.h>
#include <string>
#include <algorithm>
#include <vector>
using namespace std;

#define sqr(a) ((a) * (a))
#define pi 3.1415926535897932384626433832795

#define TASK "a"
#define MAXN  100005
//#define CONTEST 2

int n;
vector<int> a;

void Load()
{
	cin >> n;
	int t;
	for(int i = 0; i < n; i++)
	{
		cin >> t;
		a.push_back(t);
	}

	
}

void Solve()
{
	sort(a.rbegin(), a.rend());

	//for(int i = 0; i < n; i++)
	//	cerr << a[i] << " ";

	long long ans = 0;

	for(int i = 0; i + 2 < n; i += 3)
	{
		ans += a[i+1] + a[i+2];
	}

	cout << ans;
}

int main()
{
#ifdef CONTEST
	freopen(TASK".in", "r", stdin);
	freopen(TASK".out", "w", stdout);
#endif
	
	Load();
	Solve();

	return 0;
}

Test 1

Verdict: UNKNOWN

Test 2

Verdict: UNKNOWN

Test 3

Verdict: UNKNOWN

Test 4

Verdict: UNKNOWN

Test 5

Verdict: UNKNOWN

Test 6

Verdict: UNKNOWN

Test 7

Verdict: UNKNOWN

Test 8

Verdict: UNKNOWN

Test 9

Verdict: UNKNOWN

Test 10

Verdict: UNKNOWN

Test 11

Verdict: UNKNOWN

Test 12

Verdict: UNKNOWN

Test 13

Verdict: UNKNOWN

Test 14

Verdict: UNKNOWN

Test 15

Verdict: UNKNOWN

Test 16

Verdict: UNKNOWN

Test 17

Verdict: UNKNOWN

Test 18

Verdict: UNKNOWN