In my quest of solving #AdventOfCode problems in interesting ways, this time I solved the 2020 problem "Seating System" with comonads and stencils in #Haskell. Read my latest #blog post about it: https://abhinavsarkar.net/posts/solving-aoc20-seating-system/
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> It is actually massively[6] easier to write the Comonad instance for AGrid
I see what you did there.
