My solutions to the 2024 Advent of Code, in Racket.
This is my first time using Racket, so my solutions may not be the most idiomatic. It is exciting to try, though. (Sometimes I ask Chat GPT for idiomatic syntax pointers; it is not very good at this but it gives me a starting point to look further.)
| Day | Part 1 | Part 2 |
|---|---|---|
| Day 1 | Apply difference pairwise, then add. | Map each element in first list to its similarity score and add. (not memoized) |
| Day 2 | Andmap over difference list, if all within [-3, -1] or [1, 3] | Run through list ascending, if difference between item k and k-1 out of range try removing either one |
| Day 3 | Find mul(x,y) with regex and sum the products |
Find commands with regex and evaluate one by one |