$ cargo run -- --help
aoc21 1.0
Smit Soni
Advent of Code 2021
USAGE:
aoc21 --day <day> --part <part> [INPUT]
FLAGS:
-h, --help Prints help information
-V, --version Prints version information
OPTIONS:
-d, --day <day> Day of the calendar between 1-6
-p, --part <part> Which part of the puzzle, 1 or 2
ARGS:
<INPUT> File with puzzle input