Sum of all submatrices approach 2 in 2-d array

I am unable to implement this approach in the form of code can I get the code of this approach

Hi @mohitshendre2609
u can refer to dis


hope dis helps

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.