How do you insert a node at the beginning of a linked list in C ++?

How do you insert a node at the beginning of a linked list in C ++?

Algorithm

1. Declare a head pointer and make it as NULL.
2. Create a new node with the given data.
3. Make the new node points to the head node.
4. Finally, make the new node as the head node.

What are the ways to insert a node in linked list?

Insert Elements to a Linked List

1. Insert at the beginning. Allocate memory for new node. Store data. Change next of new node to point to head.
2. Insert at the End. Allocate memory for new node. Store data. Traverse to last node.
3. Insert at the Middle.

What is linked list in C++?

A linked list is a collection of nodes that contain a data part and a next pointer that contains the memory address of the next element in the list. The last element in the list has its next pointer set to NULL, thereby indicating the end of the list. The first element of the list is called the Head.

How do you insert at the beginning of a linked list?

Algorithm

1. Step 1: IF PTR = NULL.
2. Step 2: SET NEW_NODE = PTR.
3. Step 3: SET PTR = PTR → NEXT.
4. Step 4: SET NEW_NODE → DATA = VAL.
5. Step 5: SET NEW_NODE → NEXT = HEAD.
6. Step 6: SET HEAD = NEW_NODE.
7. Step 7: EXIT.

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.

What is node C++?

The node *& notation is a reference to a pointer to a node object, allowing you to change the memory address pointed to by the pointer (through the ref) as well as the node value (through the pointer). Using node * notation only allows you to achieve the latter.