3 Commits

Author	SHA1	Message	Date
Christian Ulrich	1565026e68	improve memory footprint by encoding checked cells as negative number	2021-12-04 15:42:45 +01:00
Christian Ulrich	25ee296a57	there might be no winner	2021-12-04 15:16:50 +01:00
Christian Ulrich	2a49721dab	add day 4 solution	2021-12-04 15:14:16 +01:00