Now comes the finish work.
You may have constant and global variables to declare, we're finishing off so put them in!
Build out the remainder of your detail functions and run tests.
Many of your functions will not work in your program if they don't return a value. However, others may not be as touchy.
However, I will be checking each function for return. Don't miss it.
Don't write too many lines of code without checking and compiling. Even when it compiles and runs, you want to scrutinize the output and the results.
Sometimes, just running from main won't give you the testing you need. You should feel free to set up test functions and tweak main so that it only tests one or another function until you're satisfied the "real" function works.
OPTIONAL You do not have to do this, but it could be a useful milestone for you, and allows me the opportunity to give you feedback when I can.
I have added more branches G and following. These are not required any more than the other interim branches. However, you may want to use them, so go ahead.