See the various README.md files in the subdirectories for my design/implementation notes (usually after the problem description).
The advent-2015 directory holds my Rust solutions to the 2015 Advent of Code challenge.
The advent-2018 directory holds my Elixir solutions to the 2018 Advent of Code challenge.
The advent-2019 directory holds my JavaScript solutions to the 2019 Advent of Code challenge.
The advent-2020 directory holds my Rust solutions to the 2020 Advent of Code challenge.
The advent-2021 directory holds my Elixir solutions to the 2021 Advent of Code challenge.
The advent-2022 directory holds my JavaScript solutions to the 2022 Advent of Code challenge.
The advent-2023 directory holds my Elixir solutions to the 2023 Advent of Code challenge.
The synacor directory holds my Ruby solution to the Synacor Challenge.
The euler-rust directory holds my Rust solutions to the Project Euler problems.
The hogan-57 directory holds my implementations for the exercises in Brian P. Hogan's book Exercises for Programmers. So far I've done these in Rust.