C Code Review Small modification

Most of the functions that are required; as in the document, are written by me. I want someone to just double-check their functionality by testing them in the main method. Although there are some extra functions, provided in the .cpp file, do not worry about them, unless they have memory leakage. I want someone to review the functions for me, and if there are any functions that require modification, please do modify them. The program should be without any memory leakage. The code is done 90% as I am trying to learn. I am a student, who is looking for a long-term tutor too.

  1. Place this order or similar order and get an amazing discount. USE Discount code “GET20” for 20% discount