Here are my solutions: <https://github.com/miguelmartin75/cp-problems/tree/master/sources/aoc/2023> you'll need to redirect stdin to run the examples, e.g. `./build/day4 < input/day4`
I'm using AoC to learn Nim better. Day 5 part 2 is slow, I'm sure there's a trick with all the affine transformations, but I got the gold start anyway 🤷♂️
