Bucky was my favorite youtube channel learning C++. I have gather his teachings all in one project for learning purposes. If you follow the my comments on the script as well as keep track of the outputs you will have a good understanding which function is doing what. Here is Buckys Youtube Playlist for C++: https://www.youtube.com/watch?v=tvC1WCdV1XU&list=PLAE85DE8440AA6B83