Please solve the programming task below using a self-contained code snippet in a markdown code block.

You are given a 0-indexed integer array nums. You can rearrange the elements of nums to any order (including the given order).
Let prefix be the array containing the prefix sums of nums after rearranging it. In other words, prefix[i] is the sum of the elements from 0 to i in nums after rearranging it. The score of nums is the number of positive integers in the array prefix.
Return the maximum score you can achieve.
 
Please complete the following python code precisely:
```python
class Solution:
    def maxScore(self, nums: List[int]) -> int:
```