Starting Out With C++: Early Objects (10th Edition)
Starting Out With C++: Early Objects (10th Edition)
10th Edition
ISBN: 9780135235003
Author: Tony Gaddis, Judy Walters, Godfrey Muganda
Publisher: PEARSON
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Chapter 17, Problem 1RQE
Program Description Answer

The “head pointer” points to the first node in a linked list.

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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.

Head pointer:

The purpose of head pointer is to point the node of head node or first node in the linked list and it is also called as “list head”; if the head pointer points to a null value, then it is considered that the list is empty.

Graphical representation of head pointer:

The graphical representation of head pointer is as follows:

Starting Out With C++: Early Objects (10th Edition), Chapter 17, Problem 1RQE

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ASSUMING C LANGUAGE True or False: You can have the data portion of a Linked List be a Struct containing a Linked List itself
A linked list can hold ______ nodes     10     100     1000     a number specified when the linked list is instantiated.     any number of
struct node{ int a; struct node * nextptr; };   Write two functions. One for inserting new values to a link list that uses the given node structure. void insert(struct node **head, int value); Second function is called to count the number of even numbers in the link list. It returns an integer that represents the number of even numbers. int countEvenNumbers(struct node *head); Write a C program that reads a number of integers from the user and insert those integers into a link list (use insert function). Later pass the head pointer of this link list to a function called countEvenNumbers. This function counts and returns the number of even numbers in the list. The returned value will be printed on the screen. Note 1: Do not modify the function prototypes.   Sample Input1:          Sample Output1: 45 23 44 12 37 98 33 35 -1 3   Sample Input2:          Sample Output2: 11 33 44 21 22 99 123 122 124 77 -1 4
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