aoc-2021 VS aoc-hs

I used two sets containing respectively the positions of the down-facing and right-facing sea cucumbers: link to solution

Solution

(full code) My solution is quite similar to this one, just to have fun I decided to use a typeclass Intersectable with an instance for both Ranges and Cuboids:

(full code)

My solution, I treated the binary input as strings of 0s and 1s instead of arrays of bools, it made the parsing easier using Parsec

I used a Map to track the occurrences of each monomer and updated it as many times as needed using the input's rules (full code here)

I solved the problem using a set of points and literally folding over it: (code here)

(Full code here) I used a map to represent the graph, basically I treated a Graph a as a Map a [a]

Any feedback is greatly appreciated! The full code for handling the matrix and the flash function is here

My solution is here

After a few false starts I found grid and it's so well-suited for the problem that the solution ended up being really elegant, IMO. The full solution is here but the meat of it is this function that turns a rectangular grid of squares mapped to Int into a grid of the same shape to Maybe (Point, Int). The value this function returns just needs some sorting, groupBy, and catMaybe.