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I’m solving Advent of Code this year using a relaxed criteria compared to last year in that I’m allowing myself to use packages where they’re helpful, rather than strictly base R. Last year I re-solved half of the exercises using Rust which helped me learn a lot about Rust. This year I’m enamored with APL, and I wanted to share a particularly beautiful solution.

If you’re reading this hoping that I’m done with droning on about array-languages, close the tab… it only gets worse from here. If you thought APL was unreadable, even after my earlier blog posts, again - close button is right there. In this post I try out a brand new stack-based array language and continue to advocate for learning such things.