I need to create a program in C++ that can perform 7 functions with linked lists. Please show both the function headings and the function definitions in seperate cpp and .h files. Show function definitions for both singly linked lists, and doubly linked lists. For example, singly linked list function headings would be in a singlyLL.h and the function definitions would be in a singlyLL.cpp

functions need to be

1. create a node

2. insert a node to the head.

3. insert a node to the tail.

4. remove a node from the head.

5. remove a node from the tail.

6. print the list

7. show statistics ( outputs the total sum of the data fields of the linked list, largest value, smallest value, and average)

if a node has already been created, there will be an error statement that you cannot create another initial node. also these funtions need to be implemented for doubly linked lists in another doublyLL.h and doublyLL.cpp file. The doubly linked list files need to also have a function that will print the contents of the list in reverse order. when creating the information for the .h files use a node class. Thanks

Please show the functions being called in an sample main program. Thanks!! I will upvote detailed response.