| Вход | Ожидаемый результат |
|---|---|
| [[1, 2, 3, 4, 5, 6, 7]] | 4 |
| [[1]] | 1 |
| [[]] | 0 |
| [[1, 2, 3]] | 2 |
| [[1, 2, null, 3, null, null, null]] | 1 |
| [[1, 2, 3, 4, null, null, 5]] | 2 |
| [[5, 3, 8, 1, 4, 7, 9, 0, 2]] | 4 |
| [[1, 2, 3, 4, 5]] | 2 |
| [[1, null, 2, null, 3]] | 1 |
| [[1, 2, 3, 4, 5, 6]] | 3 |