Advent Of Code

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An unofficial home for the advent of code community on programming.dev!

Advent of Code is an annual Advent calendar of small programming puzzles for a variety of skill sets and skill levels that can be solved in any programming language you like.

AoC 2024

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🪐 - 2024 DAY 11 SOLUTIONS -🪐 (programming.dev)

submitted 2 weeks ago by [email protected] to c/[email protected]

26 comments fedilink hide all child comments

Day 11: Plutonian Pebbles

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[–] [email protected] 0 points 2 weeks ago (1 children)

Some nice monadic code patterns going on there, passing the cache around! (You might want to look into the State monad if you haven't come across it before)

[–] [email protected] 0 points 2 weeks ago* (last edited 2 weeks ago) (1 children)

Thank you for the hint, I wouldn't have recognized it because I haven't yet looked into it, I might try it this afternoon if I find the time, I could probably put both the Cache and the current stone count into the monad state?

[–] [email protected] 0 points 2 weeks ago

Your code as it stands is basically State BlinkCache written out explicitly, which is I think a natural way to structure the solution. That is, the cache is the state, and the stone count is the (monadic) return value. Good luck!