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Advent of Code 2021 - Day 16

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bjorng

bjorng

Erlang Core Team

Advent of Code 2021 - Day 16

This topic is about Day 16 of the Advent of Code 2021.

We have a private leaderboard (shared with users of Erlang Forums):

https://adventofcode.com/2021/leaderboard/private/view/370884

The entry code is:
370884-a6a71927

21 comments
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zevv

zevv

@bjorng: right, a natural fit, all the gore of the bit stream fiddling is excellently handled by Elixir! Solution in under 60 lines:

https://github.com/zevv/aoc2021/blob/master/lib/day16.ex

5
Post #3
bjorng

bjorng

Erlang Core Team

Finally a puzzle perfectly suited for BEAM languages! :grinning:

https://github.com/bjorng/advent-of-code-2021/blob/daf1e4875a4a61eccc2610406bb08d85f72fa189/day16/lib/day16.ex

3
Post #2
ramuuns

ramuuns

Since I wasn’t feeling comfortable with bit-streams due to being new to this whole elixir thing, I just converted everything to a giant list of 1s and 0s and then did the parsing of that. Even that felt very easy to do in elixir somehow.

anyhow here’s the code: aoc/2021/day-16.ex at 880e2934416746d18d262a09946330ce36c9ee23 · ramuuns/aoc · GitHub

3
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