How many types of linked lists are there in C++?

There are two types of linked lists: a singly-linked list and a doubly-linked list. The singly-linked list contains nodes that only point to the next node. 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.

What is the difference between a singly linked list and a doubly linked list?

The singly-linked list contains nodes that only point to the next node. 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.

How to insert a node in a linked list?

Follow the steps to insert a node in the linked list. Let’s say, 4 is to be inserted on the existing linked list, i.e., 1 -> 2 -> 3 .The resultant linked list will be 1 -> 2 -> 3 -> 4. To insert a new node traverse till the end of the list until NULL node is found. Create a new Node, and link the new node to the last node of the linked list.

How do you hold a linked list?

A linked list is held using a pointer which points to the first item of the linked list called "head" and a pointer which points to the last item of the linked list called "tail". If that pointer (the "tail") is also nullptr, then the list is considered to be empty. Now we can use the nodes.