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Diffstat (limited to 'aoc2023-other/day-20')
| -rw-r--r-- | aoc2023-other/day-20/day-20.rkt | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/aoc2023-other/day-20/day-20.rkt b/aoc2023-other/day-20/day-20.rkt index 890abc1..eccdd91 100644 --- a/aoc2023-other/day-20/day-20.rkt +++ b/aoc2023-other/day-20/day-20.rkt @@ -132,6 +132,7 @@ ;; part 2 ;; rx receives a tone from gh, which receives four tones itself ;; those tones arrive on regular synced cycles so it's just the LCM of those cycle lengths +;; and since those cycle lengths are prime, it reduces to the product of the lengths ;; this is a really hacky mutable solution, I'm sure there's better ways of flagging these cycles ;; from the data -- the four conjunctions that indirectly feed rx |