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  1. Prepare
  2. Data Structures
  3. Linked Lists
  4. Merge two sorted linked lists
  5. Discussions

Merge two sorted linked lists

  • krsudhir002
     + 0 comments

    instead of writing three condition for checking null like this:

    if((headA==NULL)&&(headB==NULL) return NULL; if((headA!=NULL)&&(headB==NULL)) return headA; if((headA == NULL)&&(headB!=NULL)) return headB;

    you can write:

    if(head1==nullptr) return head2;

    if(head2==nullptr) return head1;