Swift 3 Fun Algorithms: Abstract Syntax Tree (Warning: Somewhat Difficult Recursion)

Let's continue with our theme from last week and implement an even harder recursion algorithm this time. Today, I'll introduce to you something called an Abstract Syntax Tree which is typically used by compilers to figure out what kind of code you are writing. Because this is a somewhat difficult challenge, it's useful to walk through each use case one step at a time. This way you can see clearly how the recursion should be performed. Facebook Group https://www.facebook.com/groups/12406... iOS Basic Training Course https://www.letsbuildthatapp.com/basi... Completed Source Code https://www.letsbuildthatapp.com/cour... Follow me on Twitter: https://twitter.com/buildthatapp