aoc

Solutions from the various years of AdventOfCode in Rust as a tiny CLI application.

Years

Year	Progress	Days
2015	80 %	20 / 25
2016	36 %	9 / 25
2017	20 %	5 / 25
2018	20 %	5 / 25
2019	8 %	2 / 25
2020	64 %	16 / 25
2021	72 %	18 / 25
2022	12 %	3 / 25
2023	32 %	8 / 25
2024	28 %	7 / 25

Structure

Each year has it's own module and in that each day is a submodule, so each day is a separate file. The day modules should in generally not know each other, they are meant to be isolated.

For convenience each day has a solve(input: &str) function as a starting point. This solve-function is supposed to calculate the solution to the given input and output them.

Testing

Usually it's a good idea to write tests according to the examples provided by the puzzle itself...

Paradigms

The idea is to get to the solution mainly with basic Rust and std, so in general additional crates should be added only with care.

Currently, the only packages used are:

• clap (to not worry about the CLI stuff)
• regex (since many puzzles require parsing input)
• md5 (Day 4 in 2015 and Day 5 in 2016 require md5 hashing)
• itertool (Provides neat functional stuff for iterators like unique(), sorted() which std doesn't provide)
• log / env_logger (for logging)
• lazy_static to declare Regexps as const
• chrono for working with dates and times