#### Find the Smallest Whole Number Not in Array

You are given an array of whole numbers (integers starting at 1 that are positive) as an argument. Return the smallest whole number that is not present in the array.

### Requirements

- Must return an integer

#### Example #1

```
solve([10, 4, 1, 7, 6, 8, 5, 3, 4, 10])
> 2
```

#### Example #2

```
solve([10, 2, 4, 1, 7, 6, 8, 5, 3, 4, 10])
> 9
```