Haskell solutions for 2016 Advent of Code

These little solutions are optimised for tidiness rather than speed of writing. In some cases I've code-golfed them for performance or elegance, in the interest of learning new tools and techniques.

Usage

With stack installed:

stack setup
stack build
stack exec adventofcode2016 [DAYNUM]

where DAYNUM is the number of one of the days of Advent!