Day 8: Resonant Collinearity
Megathread guidelines
- Keep top level comments as only solutions, if you want to say something other than a solution put it in a new post. (replies to comments can be whatever)
- You can send code in code blocks by using three backticks, the code, and then three backticks or use something such as https://topaz.github.io/paste/ if you prefer sending it through a URL
FAQ
- What is this?: Here is a post with a large amount of details: https://programming.dev/post/6637268
- Where do I participate?: https://adventofcode.com/
- Is there a leaderboard for the community?: We have a programming.dev leaderboard with the info on how to join in this post: https://programming.dev/post/6631465
Whaaat? It is possible to declare mutliple signatures on one line? 🤯
Does that function (
.+.) add tuples/coordinates?Yup, that’s right! The function monad is a bit of a mind-bender, but
(join f) x == f x xis a useful thing to remember.This is so cool, it’s going to replace the lambda in my function pipeline for calculating pairs.
BTW, for more in-depth vector stuff I usually use the Linear package.