See https://adventofcode.com/2020/ for a list of tasks.

To give the challenges an interesting twist, I coded the solutions in an atypical language, Clojure - a Lisp dialect.

Actually, not all of them in Clojure. I failed in part B of day 19, which is currently written in Python; tough I might try and rewrite it back in Clojure later.

Usage ./aoc.sh DAY [test].