Got to Challenge 18 in [2021](https://git.luke-else.co.uk/luke-else/AdventOfCode2021) and started to struggle. Managed to a couple of part 1s afterwards but ended up calling it at day 21.
> ### 12/12/22
>
> Over the past week, I have been incredibly busy with work and studying for Uni exams and so I haven't really had the time to
> complete the challenges. I would still like to complete the challenges, however, will probably have to do it amongst studies
> and so won't be able to do them as they come out.