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## MBs Advent of Code tips
* Complex numbers are a nice way of modeling two-dimensional positions.
* Use lists whenever feasible, because there are many useful list functions in the Racket library that dont have vector equivalents.
* In particular, [these list functions](https://docs.racket-lang.org/reference/pairs.html?q=racket%2Flist#%28part._.Additional_.List_.Functions_and_.Synonyms%29) are very useful.
* The `graph` library can be useful for graph-based problems.
## My solutions
I try to write solutions that are succinct but not cryptic.
I dont optimize for speed.