Aetherus
This topic is about Day 16 of the Advent of Code 2020 .
Thanks to @egze, we have a private leaderboard:
https://adventofcode.com/2020/leaderboard/private/view/39276
The join code is:
39276-eeb74f9a
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code-shoily
Just solved part 1. I find the code not elegant but it did give me a star.
https://github.com/code-shoily/advent_of_code/blob/master/lib/2020/day_16.ex
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adamu
Was a bit worried that my answer was quite complex, with multiple maps, transposing, tracking seen values, and nlogn filtering, but it seems that’s what everyone else did too.
I need to focus on work for the next couple of weeks, so I’ll only be looking at the remaining problems on days off from now on.
adamu
Enum.zip to transpose. Wish I’d thought of that.
adamu
Also: I thought
--was much nicer thanMapSet.difference. I was willing to accept a performance hit for the increased simplicity, but apparent it actually performs better since OTP 22: