Instead of having just a single pointer, we have two pointers. Every nodes in the doubly linked list has three fields: LeftPointer, RightPointer and DATA. ii. The first link points to the previous node in the list and the second link points to the next node in the list. Doubly Linked List − Items can be navigated forward and backward. Here is a visual representation of the doubly linked list. We will take two cases and then see how insertion is done in each case. Algorithm. iii. Typing doubly linked list one pointer XOR into Google points you to the Wikipedia article that totally answers this question. In computer science, a doubly linked list is a linked data structure that consists of a set of sequentially linked records called nodes.Each node contains three fields: two link fields (references to the previous and to the next node in the sequence of nodes) and one data field. Create a doubly linked list structure which contains the value of the node, pointer to next node and pointer to previous node. Doubly Linked List. Circular Linked List − Last item contains link of the first element as next and the first element has a link to the last element as previous. These child lists may have one or more children of their own, and so on, to produce a multilevel data structure. Step 1 : Creating a function which takes the pointer and value as arguments and add them in the list where ever you want. 1.> Inserting a New Node in a Circular Doubly Linked List :- In this section, we will see how a new node is added into an already existing circular doubly linked list. Doubly Linked List Implementation. Doubly linked list is a type of linked list in which each node apart from storing its data has two links. Doubly Linked List: A doubly-linked list is a linked data structure that consists of a set of sequentially linked records called nodes.Each node contains two fields, called links, that are references to the previous and to the next node in the sequence of nodes. Rest of the cases are similar to that given for doubly linked lists. Doubly linked list: i. Given a doubly linked list which in addition to the next and previous pointers, it could have a child pointer, which may or may not point to a separate doubly linked list. Circular doubly linked list. A doubly linked list is one in which all nodes are linked together by multiple links which help in accessing both the successor and predecessor node for any arbitrary node within the list. 1. The only difference between a singly and doubly inked list is in our Node class or object. – librik Feb 1 '13 at 5:54 1 Explain how to implement doubly linked lists using only one pointer value np[x] per item instead of the usual two (next and prev) . 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