Advent of Code is a series of Christmas-themed programming puzzles by Eric Wastl. These are my solutions to said puzzles.
A makefile is provided for convenience. For example, this command
runs the solution 2020/day01.awk
(yes, omit the suffix):
make 2020/day01
I generally assume an environment that conforms to POSIX.1-2017 but do make occasional portability accommodations at whim.
These solutions are published from the United States of America using the CC0 1.0 Universal Public Domain Dedication.