Work on some functional katas

https://github.com/FunctionalKatas/Katas

Work on some Katas. We will concentrate on a short kata so that we can be sure to have something complete :D

Then show around your code.

Trying out a more informal setup this time. There is a food menu available more http://www.theliquorrooms.com/about-us/

Kata

As always, push your solutions to https://github.com/FunctionalKatas/Katas (let me know if you have no access)

Today, lets code up a solution to this problem:

1. With recursion.
2. With fold or map
3. Some other way

http://adventofcode.com/day/1