Advent of Code in Rust.
You will need the rust compiler and the just command line task runner. (The command runner is optional but it's how I've structured things).
You can run the exercise for any given day by running just day {num}.
You can run the tests for any given day's lib by running, e.g. cargo t --lib day2, or the bin
by running cargo t --bin day_2.
You can run benchmarks against any given day by running just bench {num}.
- day 1. easy once I realized I needed to use a two pointer approach instead of iterating from the beginning
- day 2. easy, mostly just string parsing. nom FTW
- day 3. yuck. Simple conceptually but I wasted a bunch of time trying to find clever abstractions for it and the code shows it -- its a mess of half-baked ideas, none of which are very good. the answer is right tho.
- day 4. the recursive solution was easy...there's probably a much faster DP solution but I have a day job