Insert a node at a specific position in a linked list Using C++

Youre given the pointer to the head node of a linked list, an integer to add to the list and the position at which the integer must be inserted. Create a new node with the given integer, insert this node at the desired position and return the head node.

A position of 0 indicates head, a position of 1 indicates one node away from the head and so on. The head pointer given may be null meaning that the initial list is empty.

As an example, if your list starts as and you want to insert a node at position with , your new list should be

Funtion Description Complete the function SinglyLinkedListNode in the editor. It must return a reference to the head node of your finished list.

SinglyLinkedListNode has the following parameters:

head: a SinglyLinkedListNode pointer to the head of the list

data: an integer value to insert as data in your new node

position: an integer position to insert the new node

Input Format

The first line contains an integer , the number of elements in the linked list. Each of the next lines contains an integer node[i].data. The last line contains an integer .

Constraints

, where is the element of the linked list.

.

Output Format

Return a reference to the list head. Locked code prints the list for you.

Sample Input

3 16 13 7 1 2 

Sample Output

16 13 1 7 

Explanation

The initial linked list is 16 13 7. We have to insert 1 at the position 2 which currently has 7 in it. The updated linked list will be 16 13 1 7

* * For your reference: * * SinglyLinkedListNode { * int data; * SinglyLinkedListNode* next; * }; * */ SinglyLinkedListNode* insertNodeAtPosition(SinglyLinkedListNode* head, int data, int position) {

}

Please explain the insertNodeAtPosition and add comments to as many code lines as possible. Explain how you added a node at a specific position in a linked list.