I like OOP approaches a fair bit, but only for relatively large, long-lived systems, especially when working with a team. E.g., the Domain-Driven Design approac

I like OOP approaches a fair bit, but only for relatively large, long-lived systems, especially when working with a team. E.g., the Domain-Driven Design approach can provide a ton of shared clarity. For something like Advent of Code, though, I'd avoid it. It's just me and it's not for long; there's no need for me to be explicit about how I'm thinking about the problem.