Advent of Code 2019 Solutions

My solutions for Advent of Code 2019. You'll need the Rust toolchain to build from source – get it from the official site at https://rustup.rs. I am currently using Rust stable version 1.40.0 (cargo 1.40.0 bc8e4c8be 2019-11-22 + rustc 1.40.0 73528e339 2019-12-16).

See also: AoC'19 Puzzle Description HTML <article> Fragment to Markdown Converter.

Solved puzzles

Docs

cargo doc --lib --no-deps --release --target-dir ../aoc-2019-docs/ --open

https://ctsrc.github.io/aoc-2019/doc/codetrotter_aoc_2019_solutions/

Running tests

cargo test

Clippy lints

cargo clean ; cargo clippy -- \
  -A clippy::suspicious_else_formatting \
  -A clippy::unreadable_literal \
  -A clippy::unnecessary_mut_passed

Then pick one of the things it complains about and look at all instances of only that.

For example:

touch src/lib.rs ; cargo clippy -- -A clippy::all -W clippy::trivially_copy_pass_by_ref

Running solutions

Running solution for highest day number solved

cargo run

Running solutions for all solved days with both parts

cargo run -- -a

Running solutions for selected days

Both parts of some day, for example day 3

cargo run -- days 3

Part one of some day, for example day 3 part 1

cargo run -- days 3.1

Part two of some day, for example day 3 part 2

cargo run -- days 3.2

Both parts of each of multiple days, for example days 1, 2 and 3

cargo run -- days 1 2 3

Selected parts of multiple days, for example day 3 part 1 and day 2 part 2 along with both parts of day 1.

cargo run -- days 3.1 2.2 1