adventOfCode vs aoc-2020

adventOfCode

Solutions to the 'Advent of Code' (http://adventofcode.com) programming challenges in Elm (by jwoLondon)

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aoc-2020

Advent of Code 2020 (by aldanor)

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adventOfCode		aoc-2020
	Project
3	Mentions	5
15	Stars	3
-	Growth	-
7.5	Activity	1.8
4 months ago	Latest Commit	over 3 years ago
Elm	Language	Rust
BSD 3-clause "New" or "Revised" License	License	-

The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.

adventOfCode

Posts with mentions or reviews of adventOfCode. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2020-12-23.

-🎄- 2020 Day 24 Solutions -🎄-
78 projects | /r/adventofcode | 23 Dec 2020

Literate Elm
-🎄- 2020 Day 22 Solutions -🎄-
91 projects | /r/adventofcode | 21 Dec 2020

Literate Elm

aoc-2020

Posts with mentions or reviews of aoc-2020. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2020-12-26.

Now what? (350 stars)
1 project | /r/adventofcode | 9 Feb 2022

I've tried it a few times and solutions were surprisingly elegant! E.g., 2020-01-p2.
[2020] Optimized solutions in C++ (291 ms total)
4 projects | /r/adventofcode | 26 Dec 2020

Figured I'd post my benches as well, see below. Everything done in Rust (link to source).
-🎄- 2020 Day 24 Solutions -🎄-
78 projects | /r/adventofcode | 23 Dec 2020

Here's my day 24 in Rust, using SIMD as usual :) (and offset coordinate encoding to make a SIMD-friendly 2-D cell grid)
-🎄- 2020 Day 22 Solutions -🎄-
91 projects | /r/adventofcode | 21 Dec 2020

Borrowed both ideas in my version :) On my input your version runs at 3ms, mine in 1.5ms, so it might be faster on some inputs (link). I initially started with something similar to yours but then figured why not use 512-bit ints, so that the notion of 'head' and 'tail' disappears as your head then stays at position 0 (so, e.g., to remove a card, you just right-shift the whole bigint). Also used a tiny bit of simd along the way.