ba639c2af9f9e8f0204459af65973051687cbc5c
My day 18 was slow and I wasn't completely certain where it was all coming from, so I dove into Go's profiling stuff. It was super helpful in identifying the problem and giving me easy wins that took runtime from 4.6s/14.4s (part 1/part 2) to 1ms/2ms just from swapping some arrays for maps, which the profile showed very clearly.
Advent of Code 2019
My solutions to Advent of Code 2019.
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