SUm of all submatrix of a given matrix implemetation 2

#1

How are we gonna build the prefix sum 2d array

#2

hello @1706157
the approach is already covered in ur playlist.
pls check.

#3

I hope I’ve cleared your doubt. I ask you to please rate your experience here
Your feedback is very important. It helps us improve our platform and hence provide you
the learning experience you deserve.

On the off chance, you still have some questions or not find the answers satisfactory, you may reopen
the doubt.

#4

please tell how to implement this