# Advent of Code 2021 This folder contains the solution runner for Advent of Code 2021. All days will be solved in Rust, with the goal of having a total time across all puzzles of one second or less. ``` aoc-2021 Advent of Code 2021 runner USAGE: aoc-2021 [OPTIONS] ARGS: Which day to run OPTIONS: -2, --part2 Run part 2 instead of part 1 -h, --help Print help information -i, --input Read input from the given file instead of stdin -t, --time Print time taken ```