Community driven content discussing all aspects of software development from DevOps to design patterns. The factorial of 5 is 120. The factorial of 10 is 3,628,800. Programmers can take one of two ...

This is someone else's code which I'm trying to modify to make it not use global variable. I've been pulling my hair though unable to make this work.

I say this because a while loop is equivalent to a tail recursive function and recursive functions need not be tail recursive. Powerful constructs are usually a bad thing because they allow you to ...