Use two pointers to traverse both the linked-lists. while(List1 && List2) { if(List1->data == List2->data ), then add it to the Intersect_List. if(List1->data < List2->data ) then move List1 pointer i.e. List1=List1->next; else move List2 pointer i.e. List2=List2->next; } return the intersectList.
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