Card game

#include <bits/stdc++.h>

using namespace std;

const int N = 9;

int cards[N];

int scores[N];

int n;

int solve() {
  for (int i = n - 2; i > 0; i--) {
    scores[i] = max(scores[i + 1], cards[i] + (i + 3 < n ? scores[i + 3] : 0));
  }
  return scores[1];
}

int main() {
  cin >> n;

  for (int i = 0; i < n; i++) {
    cin >> cards[i];
  }
  int res = solve();
  cout << res << endl;
}

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: ACCEPTED

Test 4

Verdict: WRONG ANSWER

Test 5

Verdict: WRONG ANSWER

Test 6

Verdict: WRONG ANSWER

Test 7

Verdict: RUNTIME ERROR

Test 8

Verdict: RUNTIME ERROR

Test 9

Verdict: RUNTIME ERROR

Test 10

Verdict: RUNTIME ERROR

Test 11

Verdict: ACCEPTED

Test 12

Verdict: ACCEPTED

Test 13

Verdict: ACCEPTED

Test 14

Verdict: RUNTIME ERROR

Test 15

Verdict: RUNTIME ERROR