Advent of Code 2021

Here are my solutions for the Advent of Code 2021 Challenge. Solutions are to be provided in Go and Rust¹.

I will attempt to write as elegant and performant a solution as possible² in both languages. Is it possible to solve every puzzle in under a second? All language features are on the table.

<sup>1. I have never used Rust at the time of writing, but feel this is a perfect opportunity to learn
2. I don't profess to being an expert in any of these languages</sup>

Quick Start

To build and run Go solutions:

cd go && make
./bin/aoc-2021 --benchmark

To build and run Rust solutions:

cd rust/aoc
cargo +nightly run --bin benchmark --release

Results

All puzzles were benchmarked on the following laptop:

macOS Big Sur (11.5.2)
MacBook Pro (2019)
2.3 GHz 8-Core Intel Core i9
16 GB 2667 MHz DDR4

Go	Part A	Part B	Rust	Part A	Part B
Day 1	0.046ms	0.036ms	Day 1	0.034ms	0.035ms
Day 2	0.089ms	0.091ms	Day 2	0.041ms	0.041ms
Day 3	0.026ms	0.058ms	Day 3	0.028ms	0.032ms
Day 4	0.248ms	0.443ms	Day 4	-	-
Day 5	0.809ms	1.232ms	Day 5	0.218ms	0.538ms
Day 6	0.004ms	0.006ms	Day 6	0.003ms	0.003ms
Day 7	0.076ms	0.019ms	Day 7	0.017ms	0.016ms
Day 8	0.071ms	0.147ms	Day 8	0.023ms	0.059ms
Day 9	0.087ms	0.110ms	Day 9	0.056ms	0.084ms