Answer 1

Recursion has more expressive power than iterative looping constructs. I say this because a while loop is equivalent to a tail recursive function andrecursive functions need not be tailrecursive. Powerful constructs are usually a bad thing because they allow you to do things that are difficult to read.

https://www.google.co.za/amp/s/arstechnica.com/information-technology/2013/04/recursion-or-while-loops-which-is-better/%3famp=1

https://stackoverflow.com/questions/660337/recursion-vs-loops

http://wiki.c2.com/?RecursionVsLoop

Hope these help ^_^