day 22 solution
commit199812e2139c4977c2a8f1479dbd9039bcc27e73
authorEric Blake <eblake@redhat.com>
Fri, 22 Dec 2023 15:47:26 +0000 (22 09:47 -0600)
committerEric Blake <eblake@redhat.com>
Fri, 22 Dec 2023 15:48:09 +0000 (22 09:48 -0600)
tree098b97740a1ca9dd78b4495f12c5244628dc3dc2
parenta5fccd2ac0c40a1b4b8db9a11fb08dd1a5e141e5
day 22 solution

runs in ~1.5s.  Bug was if 2 bricks adjoin in two+ spots.
Now to vacuum conditionals...
2023/day22.m4