Leap
Welcome to Leap on Exercism's Elixir Track.
If you need help running the tests or submitting your code, check out HELP.md.
Instructions
Given a year, report if it is a leap year.
The tricky thing here is that a leap year in the Gregorian calendar occurs:
on every year that is evenly divisible by 4
  except every year that is evenly divisible by 100
    unless the year is also evenly divisible by 400
For example, 1997 is not a leap year, but 1996 is. 1900 is not a leap year, but 2000 is.
Notes
Though our exercise adopts some very simple rules, there is more to learn!
For a delightful, four minute explanation of the whole leap year phenomenon, go watch this youtube video.
Source
Created by
- @rubysolo
 
Contributed to by
- @angelikatyborska
 - @Cohen-Carlisle
 - @dalexj
 - @devonestes
 - @glennular
 - @jinyeow
 - @korbin
 - @kytrinyx
 - @lpil
 - @neenjaw
 - @parkerl
 - @sotojuan
 - @Teapane
 - @waiting-for-dev
 
Based on
CodeRanch Cattle Drive, Assignment 3 - https://coderanch.com/t/718816/Leap