Iterate once and only once through all the possible configurations of an array

@paulgoux and @Chrisir this is great stuff! I’m chewing through it. Hilarious to make a program that will make the for loops. :laughing:

I’ve got the first part of @paulgoux’s suggestion working:

I’m not going to be the most efficient, but I think I’m on my way. I may report back if I have more questions, but thanks a ton for the really helpful guidance!