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

You are given an m x n matrix M initialized with all 0's and an array of operations ops, where ops[i] = [ai, bi] means M[x][y] should be incremented by one for all 0 <= x < ai and 0 <= y < bi.
Count and return the number of maximum integers in the matrix after performing all the operations.
 
Please complete the following python code precisely:
```python
class Solution:
    def maxCount(self, m: int, n: int, ops: List[List[int]]) -> int:
```