Doubt in my code

#1

Here is my code it is not working well. What is the issue ?

#2

hello @yashsharma4304

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here when x1=0 or y1=0 then in that case we cannot access x1-1 and y1-1 becuase negative index access will give segmentation fault/or garbage value.
so u need to handle those cases seprately.

refer this->

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