Why is it giving wrong output?:Intersection pt of 2 linked list

#1
#2

hey @kamya, your approach is not correct ,if intersecting element present at the end of linked list it will always gives -1.

Correct approach: if n1> n2, than d=n1-n2. run loop d times on linked list 1 and change head1=head2->next. Else d=n2-n1. run loop d times on linked list 2 and change head2=head2->next.

Now both Linked list are of same length so compare each node of LL1 with LL2.

#3

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