(defmodule leap (export (leap-year 1))) (defun leap-year ([year] (when (=:= (rem year 400) 0)) 'true) ([year] (when (=:= (rem year 100) 0)) 'false) ([year] (when (=:= (rem year 4) 0)) 'true) ([_] 'false))
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Given a person's allergy score, determine whether or not they're allergic to a given item, and their full list of allergies.
Given a phrase, count the occurrences of each word in that phrase.
Produce the lyrics to that beloved classic, that field-trip favorite: 99 Bottles of Beer on the Wall.
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