Keenan Tims fee37aebd0
day6: further performance improvement, ~55ms total runtime
We only need to run the guard forward from the step before the obstacle
we placed, instead of starting at the original starting position.

The code starts to look ugly...
2024-12-06 17:05:36 -08:00
..
2024-12-06 10:40:28 -08:00
2024-12-06 10:40:28 -08:00