Starting Out with C++: Early Objects (9th Edition)
Starting Out with C++: Early Objects (9th Edition)
9th Edition
ISBN: 9780134400242
Author: Tony Gaddis, Judy Walters, Godfrey Muganda
Publisher: PEARSON
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Chapter 17, Problem 9RQE

Explanation of Solution

Linked list:

Linked list is a linear and dynamic data structure which is used to organize data; it contains sequence of elements which are connected together in memory to form a chain. The every element of linked list is called as a node.

List head:

List head is a pointer used to point the first node in the linked list and it is also called as “head pointer”; if the “head pointer” points to a “NULL” value, then it is considered that the “list is empty”.

Graphical representation of linked list:

The graphical representation of a linked list is as follows:

Function to print the value stored in the first node of a list:

//Definition of printing the first node function

void printFirst(ListNode *ptr)

{

/*Check the list w...

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Write a function void printSecond(ListNode *ptr) that prints the value stored in the second node of a list passed to it as parameter. The function should print an error message and terminate the program if the list passed to it has less than two nodes.
struct Node { int data; Node * next; }; Node • head; a. Write a function named addNode that takes in a variable of type int and inserts it at the head of the list. b. Write a function named removeNode that removes a node at the head of the list.
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