Why eauality sign for the corner case

#1

why eauality sign for the corner case
in the video the conditions are 1. (start_col < end_col) 2. (start_row < end_row)

#2

we need equality sign because when start_col is equal to end_col it means that one column hasn’t been traversed, if we will not use the equality sign that column will remain untraversed and the answer will be wrong.

#3

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