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  1. Practice
  2. Data Structures
  3. Linked Lists
  4. Insert a Node at the Tail of a Linked List
  5. Discussions

Insert a Node at the Tail of a Linked List

  • k_pradeep + 1 comment

    Below approach is with recursion

    Node Insert(Node head,int data) {
    return insertDS(head, data, head);
}
Node insertDS(Node head, int data, Node parent){
	if(head == null){
		head = new Node();
		head.data = data;
		if(parent != null) parent.next = head;
	}else
		insertDS(head.next, data, head);
	return head;
}
    • prem_hackerrank + 0 comments

      @k_pradeep
      What is the significance of this line: if(parent != null) parent.next = head;