### max_n

Returns the `n` maximum elements from the provided list. If `n` is greater than or equal to the provided list's length, then return the original list(sorted in descending order).

Use `list.sort()` combined with the `deepcopy` function from the inbuilt `copy` module to create a shallow clone of the list and sort it in ascending order and then use `list.reverse()` reverse it to make it descending order. Use `[:n]` to get the specified number of elements. Omit the second argument, `n`, to get a one-element array

```python
from copy import deepcopy


def max_n(arr, n=1):
    numbers = deepcopy(arr)
    numbers.sort()
    numbers.reverse()
    return numbers[:n]
```

```python
max_n([1, 2, 3]) # [3]
max_n([1, 2, 3], 2) # [3,2]
```