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Spent the day catching up on #AdventOfCode.

I read part 1 of day 10 wrong the first time, and started designing a clever solution for it before realising it was a lot simpler than that. Conveniently, part 2 was what I had incorrectly assumed part 1 was.

I suspect that the optimisation I did to part 1 of day 11 was what most people needed to do to get part 2 working, so my part 2 is still running . Maybe I’ll actually drop a layer of abstraction to make my integer operations fast (which would help with part 2 of day 7, which I haven't yet has a successful run for).