Merge using STS---

#1

its giving me segmentation error

#2

Hello @sid.rajput23 please explain your logic.

#3

i made 2 list first
then
used a merge function which will return head of the linked list (c1) of type list::iterator
then for checking base case as iterator can’t point to NULL it wrote if(next(a)==prev(a))
i think due to this the segmentation fault was there because there is no next(a)/prev(a) exist for an empty list
then i commented it but still gor segmentation fault

#4

@sid.rajput23 no you should add that base case because if either list a becomes empty first then you have to return b.
and if b becomes empty first then you have to return a then.

#5

how to check through an iterator for list if its empty or not??
and why segmentation error is there?

#6

segmentation error because you are not checking the base case:
and i am not sure about iterators in this question.

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#7

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