| Вход | Ожидаемый результат |
|---|---|
| [[3, 9, 20, null, null, 15, 7]] | 2 |
| [[1]] | 1 |
| [[1, 2, 3, 4, null, null, null]] | 2 |
| [[1, 2, null, 3]] | 3 |
| [[1, null, 2, null, null, null, 3]] | 3 |
| [[5, 3, 8, 1, 4, 7, 9]] | 3 |
| [[1, 2, 3]] | 2 |
| [[1, 2]] | 2 |
| [[10, 5, 15, null, null, 12, 20]] | 2 |
| [[1, 2, 3, null, null, 4, 5]] | 2 |