David Selby on Twitter: "#AdventOfCode day 23: I didn't solve this by hand; either my input was harder, or maybe I'm just not very good at this sort of puzzle! Programmatic solution
Intel Core i7 5820k Processor 15M Cache, up to 3.60 GHz, 6 Cores 12 Threads, Computers & Tech, Parts & Accessories, Computer Parts on Carousell
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