this post was submitted on 11 Dec 2024
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Advent Of Code
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An unofficial home for the advent of code community on programming.dev! Other challenges are also welcome!
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.
Everybody Codes is another collection of programming puzzles with seasonal events.
EC 2025
AoC 2025
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console.log('Hello World')
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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)
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?
Your code as it stands is basically
State BlinkCachewritten 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!