Card game

#include <bits/stdc++.h>

using namespace std;

int main()
{
    int n;
    cin >> n;
    vector<int> cards(n);
    for (int i = 0; i < n; i++)
    {
        cin >> cards[i];
    }
    vector<int> points(n);

    if (n >= 3)
    {
        points[2] = cards[1];
    }

    for (int i = 3; i < n; i++)
    {
        points[i] = max(points[i - 1], points[i - 3] + cards[i - 1]);
    }

    cout << points[n - 1] << "\n";
}

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: ACCEPTED

Test 4

Verdict: ACCEPTED

Test 5

Verdict: ACCEPTED

Test 6

Verdict: ACCEPTED

Test 7

Verdict: ACCEPTED

Test 8

Verdict: ACCEPTED

Test 9

Verdict: ACCEPTED

Test 10

Verdict: ACCEPTED

Test 11

Verdict: ACCEPTED

Test 12

Verdict: ACCEPTED

Test 13

Verdict: ACCEPTED

Test 14

Verdict: ACCEPTED

Test 15

Verdict: ACCEPTED