Doubt in the loops

#1

sir/mam, I have doubt in the loop.
The logics have A[i-1][j] n all… But when 0 is equal to 1, the index will turn negative. The same is the case for j-1. So the logic doesn’t seem to be complete

#2

hey @vageesha you can see this code if you are having trouble in understanding the indexes.

#3

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