Linked List Implementation | Creation and Display | GATECSE | Data Structure

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The Linked List is the second most used data structure after arrays. A linked list is a data structure that consists of a chain of nodes, each of which has a value and a pointer to the next node in the chain. Let's look at how to make a linked list in C in this tutorial.
What is Linked List in C?
A Linked List is a data structure that is linear. Every linked list has two sections: the data section and the address section, which contains the address of the next node in the list.
The linked list's size isn't predetermined, and data items can be added at any point along the way. The drawback is that in order to reach a node, we must travel all the way from the initial node to the one we need. The Linked List is similar to an array, but unlike an array, it is not maintained in memory in a sequential order.
The most popular types of a linked list are:
Singly link list
Doubly link list
A linked list is a method of storing a set of elements. These can be character or numbers, much like an array. In a linked list, each element is represented by a node.
A node is made up of two sections or sub-elements. The element is stored in a data part, while the link to the next node is stored in a next part..
When many of these nodes are joined together to form a chain, the result is a linked list. Each node in the order points to the next node. The initial node, HEAD, is always used as a reference to explore the list. The final node has a value of NULL.
In place of a data type, struct LinkedList is written before next. That's because its a self-referencing pointer. It means a pointer that points to whatever it is a part of. Here next is a part of a node and it will point to the next node.
malloc() is used to dynamically allocate a single block of memory in C, it is available in the header file stdlib.h.
sizeof() is used to determine size in bytes of an element in C. Here it is used to determine size of each node and sent as a parameter to malloc.
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