# What is linked list in data structure with example?

## What is linked list in data structure with example?

Linked list is a linear data structure. It is a collection of data elements, called nodes pointing to the next node by means of a pointer. Linked list is used to create trees and graphs. In linked list, each node consists of its own data and the address of the next node and forms a chain.

What is linked list and its type?

Linked list is a type of data structure commonly used in computer programming. Linked list uses a sequence of nodes with the reference or pointer to indicate the next node in the list. In linked list all the nodes are connected with the pointers. The starting element is indicated by the keyword Start .

A linked list is a data structure that can store a collection of items. In other words, linked lists can be utilized to store several objects of the same type. Each unit or element of the list is referred as a node. Each node has its own data and the address of the next node.

### How is a linked list defined?

A linked list is a sequence of data structures, which are connected together via links. Linked List is a sequence of links which contains items. Each link contains a connection to another link. Linked list is the second most-used data structure after array.

Linked lists are linear data structures that hold data in individual objects called nodes. Linked lists are often used because of their efficient insertion and deletion. They can be used to implement stacks, queues, and other abstract data types.

What are the linked list operations?

• Traversal: To traverse all the nodes one after another.
• Insertion: To add a node at the given position.
• Deletion: To delete a node.
• Searching: To search an element(s) by value.
• Updating: To update a node.
• Sorting: To arrange nodes in a linked list in a specific order.

#### What is DLL in data structure?

A Doubly Linked List(DLL) is a linear data structure that contains an extra pointer, typically called the previous pointer, together with the next pointer and data which are there in a singly linked list.

• 1) Dynamic Data Structure:
• 2) No Memory Wastage:
• 3) Implementation:
• 4) Insertion and Deletion Operation:
• 1) Memory Usage:
• 2) Random Access:
• 3) Reverse Traversal:

Linked lists offer some important advantages over other linear data structures. Unlike arrays, they are a dynamic data structure, resizable at run-time. Also, the insertion and deletion operations are efficient and easily implemented. Unlike arrays, linked lists aren’t fast at finding the n th n^\text{th} nth item.

## Where linked list can be used?

Applications of linked list data structure

• Implementation of stacks and queues.
• Implementation of graphs : Adjacency list representation of graphs is most popular which is uses linked list to store adjacent vertices.
• Dynamic memory allocation : We use linked list of free blocks.
• Maintaining directory of names.

Why do we use linked list?

How do you create a linked list?

Create new linked list from two given linked list with greater element at each node in C++ Program

1. Write a struct node.
2. Create two linked lists of the same size.
3. Iterate over the linked list. Find the max number from the two linked lists nodes. Create a new node with the max number.
4. Print the new linked list.

### Why do we use a linked list in data structure?

Linked lists are linear data structures that hold data in individual objects called nodes. These nodes hold both the data and a reference to the next node in the list. Linked lists are often used because of their efficient insertion and deletion. They can be used to implement stacks, queues, and other abstract data types.

Why a linked list is called a dynamic data structure?

A linked list is known as a dynamic data structure because it can be used with a data collection that grows and shrinks during program implementation. The main advantage of using linked list over arrays is in executing any data structure like stack or queue.

Disadvantages of Linked List The linked list requires more memory to store the elements than an array, because each node of the linked list points a pointer, due to which it requires more memory. It is very difficult to traverse the nodes in a linked list. In this, we cannot access randomly to any one node.