Some fun/practice with ReScript. The solutions are mostly in a functional style using immutable data structures where feasible, although mutability is leveraged in some places for performance reasons.
The code file for each day also contains the example input provided on the AOC website, and running the file for a particular day will print the answers to part 1 and part 2 in your console. The entry points for each part are functions named part1 and part2.
Inputs are mostly represented as array literals because 1) I'm not interested in parsing the raw input text and 2) literals for large lists compile to something nasty, so using an array literal and calling List.fromArray makes the most sense.
Setup:
npm install
To build:
npm run re:build
To run the code for a particular day (day 1 for example):
node src/day1.bs.js