day 13 part 1 solved
commite31aaaf7367fb03c543d70cc50f51ca74bd2db59
authorEric Blake <eblake@redhat.com>
Thu, 14 Dec 2023 22:46:28 +0000 (14 16:46 -0600)
committerEric Blake <eblake@redhat.com>
Thu, 14 Dec 2023 22:46:49 +0000 (14 16:46 -0600)
tree11e6242948b9b2a801caff312a071fb8e63205f2
parentf1500ab27f0d1553aa6cd5e346ec8a24611cb388
day 13 part 1 solved

~100ms with GNU, ~180ms with POSIX (parsing is the bottleneck).
Needed an undo stack in case the first potential match site doesn't
pan out.
2023/day13.m4