please explain every step

Unlimited Attempts Allowed Available: Mar 2, 2023 12:00am until Mar 16, 2023 11.59pm Details 1. Write a program to count the nodes in a linked list with the first node pointed to by first. 2. Write a program to determine the average of a linked list of real numbers with the first node pointed to by first. 3. Write a program to insert a new node into a linked list with the first node pointed to by first after the Nth node in this list for a given integer N. 4. Write a program to delete the Nth node in a linked list with the first node pointed to by first. where N is a given integer. The following are the requirements regarding this homework. - You can write an extensive program including the functions for the above tasks. Or you can submit four individual program files - You must submit your source code (cpp, .py. java). The document files (e.g., pdf, doc) are not acceptable - Make sure your code is runnable (a complete program code) - Include screenshot(s) of your program outputs along with your source code in your homework submission - You are not allowed to copy online code directly. Any cheating results in a grade "O" or "F