Count the number of squares in the matrix of zeros and ones, which consist only of zeros.
Example:
Input
[[0, 0, 0]
[0, 0, 0]
[0, 0, 1]]
Output: 11
Explanation:
In len 1, there are 8 squares there.
In len 2, there are 3 squares there.
In len 3, there are 0 square there.
So total is 11.