Advent-of-Code VS Advent-of-Code

Code on GitHub.

The code

So, I've just installed git-crypt, which transparently encrypts on push, and transparently decrypts on pull. I've written a few brief notes here.

Code on GitHub (includes unit test)

My Day 5 code on GitHub

Maybe check out the canonical page instead: https://github.com/derailed-dash/Advent-of-Code

See on GitHub

(The repo is here.)

Swift. I tried to use GameplayKit's pathfinding, but I got fed up with it being in Objective-C and not working with subtypes properly. shortestPathSources is just an implementation of Dijkstra that works on matrices.

Swift.

Swift. Algorithms had me covered for Part 2, but I had to make something for Part 1 that would allow for getting the elements of a Sequence based on sorted offsets, without having to start from the beginning each time.

I recommend SIMD2—it can save you a lot of reinventing the 2D wheel!

Swift. We don't have good types for this. 🤮

Swift. containsOnlyUniqueElements is not in the standard library; it relies on this Set initializer.

Works grood.

No, I edited my comment. I was wrong in thinking that there was a proper overload. The one I'm using is just from `extension Collection where Self.Element : Equatable` in the new _StringProcessing section for Regex. It gives the correct result, but it's not as fast as it could be. (https://stackoverflow.com/questions/64066681/check-if-one-range-is-within-another)

Swift, using some helpers for `CaseIterable`.