What is a linked list?

A linked list is a linear data structure, in which the elements are not stored at contiguous memory locations. The elements in a linked list are linked using pointers as shown in the below image: In simple words, a linked list consists of nodes where each node contains a data field and a reference (link) to the next node in the list.

How to create a singly linked list in C++?

The singly linked list is also created by using the structure in C++, which will hold the data and pointer to the same structure. Head is the first node in the linked list, and its address is required to access our complete linked list.

What is a circular linked list?

A circular linked list is that in which the last node contains the pointer to the first node of the list. While traversing a circular linked list, we can begin at any node and traverse the list in any direction forward and backward until we reach the same node we started. Thus, a circular linked list has no beginning and no end.

What is a doubly linked list in C++?

The C++ doubly linked list has nodes that can point towards both the next and the previous node. A node has two parts: the data part and the next part. The data part contains the stored data, and the next part provides the address of the next node. The first node of a linked list is called the head, and the last node is called the tail.