~filiplajszczak/advent-of-code-2022

Day 9, part one. part two has to wait.
Explicit is better then implicit.
more let experiments.
replaces lambdas with λs.
replaces internally defined procedures with named lets.
ignore test logs and individual input files, but not examples.
day 8 in initial lisp spaghetti style.
easier way to check size of character set
initial dirty day 4 & 5