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##### Asked by: Soiartze Bret

technology and computing programming languages# What is circular doubly linked list?

Last Updated: 1st July, 2020

**Circular doubly linked list**is a more complexedtype of data structure in which a node contain pointers to itsprevious node as well as the next node. The first node of the

**list**also contain address of the last node in its previouspointer. A

**circular doubly linked list**is shown in thefollowing figure.

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Thereof, what is doubly linked list explain?

A **doubly linked list** is a kind of **linkedlist** with a **link** to the previous node as well as a datapoint and the **link** to the next node in the **list** aswith singly **linked list**. A sentinel or null node indicatesthe end of the **list**. **Doubly linked lists** aretypically implemented in pseudocode in computer sciencetextbooks.

Furthermore, what is the advantage of doubly linked list? Following are **advantages**/**disadvantages ofdoubly linked list** over singly **linked list**. 1) A DLL canbe traversed in both forward and backward direction. 2) The deleteoperation in DLL is more efficient if pointer to the node to bedeleted is given. 3) We can quickly insert a new node before agiven node.

Also to know, what is circular linked list?

A **circular linked list** is a sequence of elementsin which every element has a **link** to its next element in thesequence and the last element has a **link** to the firstelement. That means **circular linked list** is similar to thesingle **linked list** except that the last node points to thefirst node in the **list**.

What is the need of doubly linked list?

a **doubly linked list needs** more operations whileinserting or deleting and it **needs** more space (to store theextra pointer). A **doubly linked list** can be traversed inboth directions (forward and backward). A singly **linked list**can only be traversed in one direction.