Difference between Singly linked list and Doubly linked list Last Updated : 31 Jul, 2024 Comments Improve Suggest changes Like Article Like Report Introduction to Singly linked list : A singly linked list is a set of nodes where each node has two fields 'data' and 'link'. The 'data' field stores actual piece of information and 'link' field is used to point to next node. Basically the 'link' field stores the address of the next node. Introduction to Doubly linked list : A Doubly Linked List (DLL) contains an extra pointer, typically called previous pointer, together with next pointer and data which are there in singly linked list. Singly linked list vs Doubly linked list Singly linked list (SLL)Doubly linked list (DLL)SLL nodes contains 2 field -data field and next link field.DLL nodes contains 3 fields -data field, a previous link field and a next link field.In SLL, the traversal can be done using the next node link only. Thus traversal is possible in one direction only.In DLL, the traversal can be done using the previous node link or the next node link. Thus traversal is possible in both directions (forward and backward).Supports lesser number of operations in constant timeSupports additional operations like insert before, delete previous, delete current node and delete last in O(1) time. Since it supports delete last, it is used to efficiently implement Deque. The SLL occupies less memory than DLL as it has only 2 fields.The DLL occupies more memory than SLL as it has 3 fields.Complexity of deletion with a given node is O(n), because the previous node needs to be known, and traversal takes O(n)Complexity of deletion with a given node is O(1) because the previous node can be accessed easilyA singly linked list consumes less memory as compared to the doubly linked list.The doubly linked list consumes more memory as compared to the singly linked list.Singly linked list is relatively less used in practice due to limited number of operationsDoubly linked list is implemented more in libraries due to wider number of operations. For example Java LinkedList implements Doubly Linked List. Comment More infoAdvertise with us Next Article Applications, Advantages and Disadvantages of Doubly Linked List R romin_vaghani Follow Improve Article Tags : Linked List Data Structures Difference Between DSA doubly linked list +1 More Practice Tags : Data StructuresLinked List Similar Reads Doubly Linked List meaning in DSA A doubly linked list is a special type of linked list in which each node contains a pointer to the previous node as well as the next node in the structure. Doubly Linked ListCharacteristics of the Doubly Linked List: The characteristics of a doubly linked list are as follows: Dynamic size: The size 3 min read Doubly Linked List Tutorial A doubly linked list is a more complex data structure than a singly linked list, but it offers several advantages. The main advantage of a doubly linked list is that it allows for efficient traversal of the list in both directions. This is because each node in the list contains a pointer to the prev 8 min read Difference between Singly linked list and Doubly linked list Introduction to Singly linked list : A singly linked list is a set of nodes where each node has two fields 'data' and 'link'. The 'data' field stores actual piece of information and 'link' field is used to point to next node. Basically the 'link' field stores the address of the next node. Introducti 2 min read Applications, Advantages and Disadvantages of Doubly Linked List Doubly linked list is a type of linked list in which nodes contains information and two pointers i.e. left pointer and right pointer. The left pointer in the doubly linked list points to the previous node and the right pointer points to the next node in the linked list. The first node of the doubly 4 min read Operations on Doubly LinkedOperations of Doubly Linked List with ImplementationA Doubly Linked List (DLL) contains an extra pointer, typically called the previous pointer, together with the next pointer and data which are there in a singly linked list. Below are operations on the given DLL: Add a node at the front of DLL: The new node is always added before the head of the giv 15+ min read Insertion in a Doubly Linked ListInserting a new node in a doubly linked list is very similar to inserting new node in linked list. There is a little extra work required to maintain the link of the previous node. In this article, we will learn about different ways to insert a node in a doubly linked list.Table of ContentInsertion a 6 min read Search an element in a Doubly Linked ListGiven a Doubly linked list(DLL) containing n nodes and an integer x, the task is to find the position of the integer x in the doubly linked list. If no such position found then print -1.Examples:Input: Linked List = 18 <-> 15 <-> 8 <-> 9 <-> 14, x = 8 Output: 3 Explanation: x 7 min read Deletion in a Doubly Linked ListDeleting a node in a doubly linked list is very similar to deleting a node in a singly linked list. However, there is a little extra work required to maintain the links of both the previous and next nodes. In this article, we will learn about different ways to delete a node in a doubly linked list.E 15+ min read Delete a Doubly Linked List node at a given positionGiven a doubly linked list and a position pos, the task is to delete the node at the given position from the beginning of Doubly Linked List.Input: LinkedList: 1<->2<->3, pos = 2Output: LinkedList: 1<->3Input: LinkedList: 1<->2<->3, pos = 1Output: LinkedList: 2<-> 9 min read Doubly Linked List in Different LanguagesHow to Create a Doubly Linked List in C? A doubly linked list is a type of linked list in which each node contains a pointer to both the next node and the previous node. This allows traversal in both forward and backward directions. Each node in a doubly linked list stores data, a pointer to the next node, and a pointer to the previous nod 4 min read Introduction to Doubly Linked Lists in Java Doubly linked list is a data structure that has reference to both the previous and next nodes in the list. It provides simplicity to traverse, insert and delete the nodes in both directions in a list. In a doubly linked list, each node contains three data members: data: The data stored in the nodene 11 min read Implementation of Doubly Linked List in JavaScript This article will demonstrate the Implementation of Doubly Linked List In JavaScript. A doubly linked list (DLL) is a special type of linked list in which each node contains a pointer to the previous node as well as the next node of the linked list. Doubly Linked List in JavaScriptTo create we have 4 min read Memory efficient doubly linked list We need to implement a doubly linked list with the use of a single pointer in each node. For that we are given a stream of data of size n for the linked list, your task is to make the function insert() and getList(). The insert() function pushes (or inserts at the beginning) the given data in the li 9 min read Like