#AoC2017 #FSharp day 5 optimization Show more
PROTIP: Mixing your metaphors is a boon. By switching from creating a new list iteration, I go down for well over 30 minutes to just about a second. Still using recursion!
Upshot: Visual Studio came in real handy here - being able to rewind state and set breakpoints made this a lot quicker, and the realization I was operating on a pre-mutated array was quick as well.