I have attached many C++ programs, from when I was learning the language using this course on Udemy(do check it out!), with many comments to help you understand exactly what each line of code does. As a bonus, I have also added FLDKIntro.cpp, which introduces you to the FLDK GUI library in C++, which I use for DigiBingoV3. I hope that the code is useful for you in learning the language, and happy learning!