implement a linked list class using pointers and object-oriented programming. Although the C++ STL (Standard Template Library) offers a linked list implementation, you must implement this program “from scratch” and cannot simply utilize the existing STL offerings (<list> or <forward_list>).

Your linked list will be designed to contain signed integers of type int.

Required Classes

Must implement the classes shown below (as well as the member functions that are listed).

{: val; Linked_List_Node *next; }

Note: Linked_List_Node is being used akin to a struct (with public member variables). This is intentional so that you can easily modify the member variables from within the Linked_List class.

Linked_List {: length; Linked_List_Node *first; : ; ; ; ); ); val, index); ; ; }

Note that the sort_ascending() function must be implemented using the recursive Merge Sort algorithm

 (Links to an external site.)

Links to an external site.

. sort_descending() can utilize Merge Sort or a different algorithm (see extra credit).

You are also required to implement a function that counts the number of prime numbers within a Linked_List. This can be written as part of the Linked_List class or in some other class. For our purposes, a negative number is never considered to be prime.

Application Description

Once you have implemented the fundamental building blocks of a linked list you will use this functionality to build a simple application. Implement a program to replicate the following behavior:

Please enter a number: 146 you want another (y n): yEnter a : you want another (y n): yEnter a : you want another (y n): yEnter a : you want another (y n): yEnter a : you want another (y n): n ascending descending (a d)? aYour linked : You have prime (s) your list. you want this again (y n)? nOther Program Requirements

• When sorting nodes, you may not swap the values between nodes and must change the pointers on the nodes to swap them.
• You must have a class for each of the following things: Linked_List, Linked_List_Node. As usual, it is completely fine to implement additional classes if you can defend their existence.
• Your program must be factored into interface, implementation, and application. Specifically, you should have one header file and one implementation file for each class, and you should have a single application file containing your main() function. If you choose to implement a template class, it is acceptable to insert both the header and implementation information into a corresponding .hpp file.
• You must provide a working Makefile in the TAR archive.
• The Big 3 must be implemented as appropriate.
• Your program may not have any memory leaks. I strongly recommend that you use Valgrind to occasionally test your program as you develop it (even when everything seems to be working).
• Segmentation faults/core dumps are not allowed (e.g. your program crashes).
• If your implementation does not follow the spirit of the assignment you will lose 50 points! You must implement a linked list for the storage of the data.

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