diff --git a/Cargo.lock b/Cargo.lock index 2f45ac1..7fc8231 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -9,6 +9,13 @@ dependencies = [ "nom", ] +[[package]] +name = "day-02" +version = "0.0.0" +dependencies = [ + "nom", +] + [[package]] name = "memchr" version = "2.6.4" diff --git a/Cargo.toml b/Cargo.toml index cc0c14f..0215d69 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -2,6 +2,7 @@ resolver = "2" members = [ "day-01", + "day-02" ] [workspace.dependencies] diff --git a/day-02/Cargo.toml b/day-02/Cargo.toml new file mode 100644 index 0000000..e0cae22 --- /dev/null +++ b/day-02/Cargo.toml @@ -0,0 +1,9 @@ +[package] +name = "day-02" +version = "0.0.0" +edition = "2021" + +# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html + +[dependencies] +nom.workspace = true diff --git a/day-02/src/bin/input.txt b/day-02/src/bin/input.txt new file mode 100644 index 0000000..ed9eee4 --- /dev/null +++ b/day-02/src/bin/input.txt @@ -0,0 +1,100 @@ +Game 1: 7 red, 14 blue; 2 blue, 3 red, 3 green; 4 green, 12 blue, 15 red; 3 green, 12 blue, 3 red; 11 red, 2 green +Game 2: 16 blue, 9 red, 5 green; 8 red; 8 blue, 5 green, 12 red; 11 blue, 8 green, 17 red +Game 3: 8 green, 1 blue, 7 red; 12 red, 6 blue, 9 green; 2 blue, 1 red, 14 green; 9 green, 4 red; 2 red, 1 blue, 8 green +Game 4: 1 blue, 3 green; 2 green, 1 blue, 1 red; 1 red, 3 green +Game 5: 6 red, 1 blue; 1 green; 5 red, 2 green; 1 red, 1 blue, 3 green +Game 6: 3 green, 4 red, 1 blue; 2 blue, 5 green, 2 red; 12 green, 3 blue, 2 red; 4 blue, 1 green, 4 red; 11 green, 6 red; 5 green, 10 red, 3 blue +Game 7: 2 blue, 3 green, 16 red; 1 blue, 3 red; 2 green, 13 red; 18 red, 2 blue, 1 green; 3 red, 1 blue +Game 8: 4 red, 3 blue, 8 green; 2 red, 16 green; 2 red, 1 blue +Game 9: 4 green, 14 blue, 8 red; 17 blue, 3 red, 5 green; 2 green, 4 red, 6 blue; 7 red, 2 green, 18 blue; 3 red, 19 blue, 4 green; 4 green, 8 red, 6 blue +Game 10: 12 green, 7 red, 1 blue; 6 red, 12 green; 6 red, 7 green, 1 blue; 1 red, 1 blue, 18 green; 11 green, 1 blue +Game 11: 10 green, 3 red, 13 blue; 13 blue, 6 green, 8 red; 12 blue, 4 green, 8 red; 9 green, 9 red, 3 blue; 6 blue, 7 green, 6 red; 11 blue, 13 green +Game 12: 9 green, 2 blue; 4 green, 1 blue, 7 red; 2 green, 1 blue, 5 red +Game 13: 1 green; 7 blue, 1 red, 2 green; 8 blue, 2 green +Game 14: 8 red, 3 green; 1 red, 8 green; 1 blue, 10 green +Game 15: 1 blue, 6 green, 14 red; 3 red, 1 blue, 6 green; 4 green; 1 blue, 5 green, 2 red; 2 blue, 1 green, 6 red; 4 red, 8 green, 1 blue +Game 16: 1 green, 6 red, 8 blue; 1 green, 11 blue, 1 red; 7 blue, 3 green, 4 red; 2 green, 6 red, 12 blue +Game 17: 3 blue, 4 red, 4 green; 18 blue, 6 red, 11 green; 2 green, 6 red, 17 blue; 12 green, 3 blue, 5 red +Game 18: 3 green, 2 blue, 10 red; 7 green, 10 blue; 9 blue, 7 red, 14 green; 18 green, 10 blue, 11 red; 10 red, 2 blue, 16 green +Game 19: 6 red, 1 green, 18 blue; 2 red, 1 blue; 7 blue, 3 red, 2 green; 18 blue, 2 green, 1 red; 7 red, 10 blue +Game 20: 13 blue, 2 red; 2 green, 2 red; 1 green, 9 blue +Game 21: 4 blue, 1 red; 2 red, 4 blue, 1 green; 3 red; 4 green, 1 red, 1 blue; 3 green, 9 blue, 1 red +Game 22: 7 blue, 5 green, 14 red; 15 red, 9 blue, 11 green; 10 blue, 5 red, 11 green; 14 red, 10 blue, 13 green +Game 23: 10 red, 6 blue; 1 red, 4 blue, 3 green; 3 green, 2 blue; 5 red, 3 green; 3 green, 4 blue, 5 red; 3 green, 7 red, 6 blue +Game 24: 4 red, 8 green; 1 red, 10 green; 2 red, 1 green; 2 green, 1 blue; 4 red, 12 green; 3 green +Game 25: 5 red, 2 blue, 6 green; 4 red, 3 blue, 8 green; 11 green, 4 red, 1 blue +Game 26: 5 blue, 1 red; 18 blue, 4 green; 9 green, 3 red, 17 blue; 6 green, 10 blue, 1 red; 3 blue, 7 green; 4 blue, 3 red, 5 green +Game 27: 13 red, 2 blue; 7 blue, 2 green, 12 red; 1 green, 9 blue, 9 red; 4 red, 4 green, 8 blue; 13 red, 6 blue; 3 red, 9 blue, 3 green +Game 28: 1 blue, 12 green, 1 red; 1 blue, 12 green, 2 red; 2 red, 8 green, 1 blue; 5 green, 2 red; 1 blue, 9 green, 6 red; 1 blue, 13 green +Game 29: 5 blue, 5 red, 11 green; 15 blue, 5 red, 10 green; 2 red, 11 green, 19 blue; 19 blue, 3 green, 6 red +Game 30: 1 blue, 12 red, 1 green; 12 blue, 1 red, 2 green; 12 red, 5 green; 2 red, 2 green, 5 blue; 5 red, 2 green, 6 blue +Game 31: 20 green, 1 red, 16 blue; 3 green, 1 red, 7 blue; 6 red, 18 blue, 8 green +Game 32: 5 green; 1 blue, 2 red, 5 green; 1 blue, 2 red, 5 green; 2 green, 2 red +Game 33: 6 blue, 5 green; 6 blue, 3 red, 1 green; 4 green, 3 blue, 2 red; 1 red, 6 blue, 5 green; 1 blue, 2 red, 5 green; 4 red, 3 blue +Game 34: 12 red, 12 green; 12 red, 7 green; 1 blue, 12 red, 11 green; 7 red, 7 green, 2 blue +Game 35: 3 red, 3 blue, 1 green; 1 green, 5 red, 5 blue; 8 green, 2 red, 14 blue; 8 green; 6 blue, 3 red, 6 green; 1 red, 1 blue, 12 green +Game 36: 13 red, 5 blue; 13 blue, 10 green, 6 red; 10 red, 5 green, 10 blue; 10 blue, 8 green, 6 red; 1 green, 14 red, 2 blue; 8 green, 4 blue +Game 37: 6 green, 1 red; 1 blue, 4 green, 1 red; 1 red, 14 green; 1 red, 9 green; 1 green, 1 red; 9 green, 1 red +Game 38: 1 green, 4 blue, 17 red; 13 red, 9 blue, 12 green; 7 green, 11 blue +Game 39: 18 green, 9 blue, 2 red; 11 red, 1 blue, 4 green; 9 red, 4 green, 10 blue; 9 blue, 5 red, 2 green +Game 40: 3 green, 8 red; 2 green, 6 red; 1 green, 9 red, 4 blue; 1 blue, 6 red; 2 green, 2 blue, 3 red +Game 41: 3 red, 15 green, 3 blue; 19 green, 2 red, 5 blue; 8 blue, 7 green, 4 red; 3 blue, 4 red, 5 green; 1 blue; 6 blue, 15 green, 3 red +Game 42: 2 red, 18 blue, 6 green; 3 green, 2 blue, 8 red; 9 blue, 1 green, 5 red; 12 red, 3 blue, 8 green +Game 43: 3 blue, 1 green, 3 red; 8 blue, 3 green, 1 red; 3 red, 5 blue; 3 green, 3 red, 7 blue; 6 blue, 1 green, 2 red; 7 blue, 2 green, 5 red +Game 44: 2 green, 5 blue, 1 red; 9 red, 16 blue; 4 blue, 2 green, 12 red; 13 red, 5 blue, 10 green; 4 green, 3 blue, 11 red +Game 45: 6 blue, 3 red, 13 green; 10 green, 13 blue, 12 red; 7 red, 19 blue, 16 green; 15 blue, 4 red, 11 green; 1 red, 4 green +Game 46: 11 red, 2 green; 5 blue, 2 red, 2 green; 3 green, 8 red, 6 blue; 3 blue, 10 green, 8 red +Game 47: 6 green, 16 red; 4 blue, 4 red, 2 green; 3 blue, 1 green, 12 red; 2 red, 4 blue, 4 green; 2 blue, 16 red; 5 blue, 5 green, 5 red +Game 48: 8 red, 1 blue; 1 green, 2 blue, 6 red; 11 red, 6 green, 2 blue +Game 49: 5 green, 16 blue, 2 red; 2 red, 20 blue, 6 green; 1 red, 3 blue, 5 green; 7 green, 4 blue +Game 50: 9 red, 8 green; 11 green, 10 red, 1 blue; 9 red, 5 green; 1 blue, 12 green, 8 red; 1 blue, 5 green, 2 red; 6 green, 1 blue, 2 red +Game 51: 1 red, 4 blue; 1 red, 3 green, 3 blue; 1 green, 1 red, 2 blue +Game 52: 11 red, 4 blue; 1 green, 6 blue, 10 red; 8 blue, 13 red +Game 53: 6 green, 9 red; 4 blue, 13 red, 2 green; 10 red, 5 green, 3 blue; 11 red, 3 blue, 4 green +Game 54: 16 red, 9 blue, 8 green; 9 red, 1 blue; 12 green, 2 red, 13 blue; 5 blue, 14 green, 15 red; 3 green, 2 red, 2 blue +Game 55: 3 green, 4 blue, 5 red; 3 red, 9 green, 1 blue; 3 blue, 4 green, 5 red; 4 green, 3 blue, 7 red; 5 red, 2 blue; 2 blue, 8 red, 5 green +Game 56: 3 red, 5 green, 3 blue; 15 red, 3 green, 15 blue; 3 green, 1 blue, 10 red; 15 blue, 1 red, 2 green; 6 red, 16 blue, 6 green; 19 red, 16 blue +Game 57: 5 blue, 1 red, 5 green; 8 blue, 16 green; 13 green, 5 blue, 3 red; 1 blue, 1 red, 13 green; 12 green, 3 red, 4 blue; 8 blue, 3 red, 1 green +Game 58: 5 blue, 4 green; 7 blue, 1 red, 10 green; 1 red, 13 green, 4 blue; 7 blue, 12 green, 4 red; 4 red, 13 green, 5 blue; 2 green, 1 blue, 12 red +Game 59: 2 red, 11 blue, 6 green; 1 green, 8 blue, 3 red; 4 red, 6 blue +Game 60: 4 green, 1 red; 3 blue, 15 red, 2 green; 13 red, 16 blue, 2 green; 6 green, 13 blue, 10 red; 15 blue, 11 red, 5 green; 7 blue, 4 green +Game 61: 14 red, 2 green, 14 blue; 1 green, 15 red, 3 blue; 2 green, 8 blue +Game 62: 13 green, 13 blue; 1 red, 6 green, 1 blue; 13 blue, 16 green; 3 blue, 1 red, 2 green +Game 63: 10 blue, 3 red, 4 green; 15 red; 10 blue, 10 green, 14 red; 9 blue, 6 green; 3 blue, 7 green, 13 red +Game 64: 2 red, 4 green; 1 blue, 9 red; 1 green, 2 blue, 10 red; 9 red, 1 blue, 5 green; 6 green, 6 red +Game 65: 10 blue, 4 green; 4 green, 2 red, 9 blue; 11 red, 1 green, 10 blue; 14 green, 19 blue, 3 red; 12 red, 5 blue, 11 green; 14 blue, 12 green, 11 red +Game 66: 5 blue, 2 red; 5 blue, 1 green, 7 red; 14 red, 1 green, 2 blue; 8 red, 7 blue; 2 red, 4 blue, 1 green; 2 blue, 18 red +Game 67: 6 red, 1 blue; 5 green, 2 blue, 1 red; 2 red, 3 green, 3 blue; 8 green, 4 blue, 6 red +Game 68: 4 blue, 1 green; 12 blue, 2 red, 3 green; 2 green, 7 blue; 1 red, 19 blue, 3 green +Game 69: 6 green, 11 red, 2 blue; 1 blue, 7 green, 6 red; 1 blue, 8 red; 17 red, 3 blue, 5 green +Game 70: 2 green, 6 red, 4 blue; 2 green, 7 red, 1 blue; 11 blue, 1 green +Game 71: 10 blue, 9 red; 3 red, 10 blue; 1 red, 8 blue, 2 green; 7 blue, 4 green, 5 red; 6 red, 2 blue, 7 green; 5 red, 2 blue, 4 green +Game 72: 1 green, 12 blue, 8 red; 9 red, 3 blue; 2 red, 2 green, 10 blue +Game 73: 7 red, 3 green, 11 blue; 4 green, 7 blue; 6 blue, 13 green, 9 red; 11 green, 4 blue; 12 blue, 3 red, 2 green; 9 green +Game 74: 5 blue, 2 red; 6 red, 1 blue, 8 green; 6 green, 5 blue, 16 red; 1 green, 9 red, 3 blue; 12 green, 1 red, 1 blue; 2 blue, 7 green, 13 red +Game 75: 5 green, 20 red; 7 red, 6 green, 2 blue; 4 green, 2 blue; 2 blue, 1 green, 3 red; 2 blue, 2 green, 12 red; 6 red, 6 green +Game 76: 9 red, 12 green, 3 blue; 2 blue, 1 red, 6 green; 13 green, 2 blue; 2 red, 7 green, 3 blue; 7 red, 4 green, 2 blue; 2 red, 3 blue, 3 green +Game 77: 2 blue, 6 red; 4 red, 15 green, 1 blue; 7 green, 5 blue, 6 red; 4 red, 5 blue +Game 78: 5 blue, 3 red, 1 green; 2 green, 7 red, 3 blue; 3 blue, 5 red, 5 green +Game 79: 6 red, 9 blue, 1 green; 9 green, 8 red, 7 blue; 1 blue, 12 green, 13 red; 7 red, 14 blue, 2 green; 13 blue, 4 green, 9 red; 4 blue, 2 green +Game 80: 4 green, 2 blue; 5 green, 3 red, 8 blue; 9 blue, 11 red, 4 green; 2 blue, 3 green, 4 red; 5 red +Game 81: 8 red, 3 blue, 4 green; 13 blue, 8 red, 1 green; 6 blue, 1 green; 18 green, 6 red, 10 blue; 17 green, 8 blue, 3 red; 6 red, 5 green, 12 blue +Game 82: 3 red, 7 blue; 4 red, 6 blue, 14 green; 9 blue, 2 green, 3 red +Game 83: 1 blue, 2 red; 5 green, 16 red; 12 red, 1 green; 8 green, 8 red +Game 84: 3 red, 9 green, 1 blue; 3 red, 6 blue, 7 green; 5 red, 8 green, 8 blue; 5 red, 3 blue, 11 green; 3 green, 4 blue; 4 green, 1 blue, 2 red +Game 85: 4 red, 6 blue, 1 green; 7 red, 6 blue; 9 red, 1 green; 1 blue, 1 green, 10 red; 2 red, 2 blue, 1 green; 5 blue, 7 red +Game 86: 4 blue, 5 green, 6 red; 9 red, 3 blue; 5 green, 3 red, 10 blue; 3 green, 7 blue, 3 red; 4 red; 4 green, 1 blue, 8 red +Game 87: 3 red, 3 green; 3 blue, 1 green; 3 red, 3 green; 3 red, 1 blue, 3 green; 2 green, 1 red +Game 88: 1 red, 13 green, 3 blue; 17 blue, 14 green, 5 red; 3 red, 19 blue, 13 green; 7 green, 19 blue; 5 red, 13 green, 17 blue; 13 blue, 8 green, 2 red +Game 89: 3 blue, 4 red; 2 green, 15 red, 1 blue; 3 green, 3 blue, 13 red; 3 blue, 9 red, 2 green; 8 red +Game 90: 2 red, 2 green, 1 blue; 3 blue, 2 green; 1 blue, 2 green, 4 red; 3 blue +Game 91: 13 blue, 5 green, 4 red; 17 blue, 8 red, 11 green; 1 green, 6 red, 19 blue; 12 blue, 6 green; 7 green, 2 red +Game 92: 6 red, 4 green; 2 blue, 11 red; 4 green, 7 blue; 2 red, 12 blue, 2 green +Game 93: 3 blue, 2 red; 2 blue, 11 red, 1 green; 7 red, 1 green; 1 red, 2 blue; 13 red, 3 blue +Game 94: 2 blue, 1 red, 20 green; 1 red, 4 blue, 10 green; 1 red, 20 green, 13 blue; 20 green +Game 95: 6 blue, 1 green; 3 red, 11 green; 4 blue +Game 96: 4 red, 4 green, 3 blue; 4 green, 17 blue, 3 red; 3 red, 3 blue, 13 green; 8 red, 7 blue, 6 green +Game 97: 5 blue, 9 green; 4 green, 4 blue; 4 red, 19 green; 2 red, 3 green; 19 green, 3 blue, 4 red; 3 red, 10 green +Game 98: 4 blue, 10 red, 8 green; 2 red, 3 green; 5 red, 4 blue, 10 green +Game 99: 9 blue, 12 red; 9 blue, 11 red, 13 green; 9 blue, 1 red, 13 green; 4 blue, 12 green; 10 blue, 17 red, 8 green +Game 100: 8 red, 3 green; 4 green, 1 blue, 15 red; 10 red, 8 green, 1 blue \ No newline at end of file diff --git a/day-02/src/bin/part1.rs b/day-02/src/bin/part1.rs new file mode 100644 index 0000000..d72858c --- /dev/null +++ b/day-02/src/bin/part1.rs @@ -0,0 +1,82 @@ +use nom::{ + branch::alt, + bytes::complete::tag, + character::complete::{char, digit1}, + combinator::{map, value}, + multi::separated_list1, + sequence::{delimited, pair, terminated, tuple}, + IResult, +}; + +fn main() { + println!("{}", part1(include_str!("./input.txt"))); +} + +fn part1(input: &str) -> u32 { + input.lines().map(game).sum() +} + +fn game(input: &str) -> u32 { + let (id, possible) = tuple((id, all_results))(input).unwrap().1; + + if possible { + id + } else { + 0 + } +} + +fn digit_u32(i: &str) -> IResult<&str, u32> { + map(digit1, |d: &str| d.parse().unwrap())(i) +} + +fn id(i: &str) -> IResult<&str, u32> { + delimited(tag("Game "), digit_u32, tag(": "))(i) +} + +fn all_results(i: &str) -> IResult<&str, bool> { + map(separated_list1(tag("; "), one_result), |res| { + res.iter().all(|x| *x) + })(i) +} + +fn one_result(i: &str) -> IResult<&str, bool> { + map(separated_list1(tag(", "), color), |res| { + res.iter().all(|x| *x) + })(i) +} + +#[derive(Debug, PartialEq, Clone, Copy)] +enum Color { + Red, + Green, + Blue, +} + +fn color(i: &str) -> IResult<&str, bool> { + map( + pair( + terminated(digit_u32, char(' ')), + alt(( + value(Color::Red, tag("red")), + value(Color::Green, tag("green")), + value(Color::Blue, tag("blue")), + )), + ), + |(amount, color)| match color { + Color::Red => amount <= 12, + Color::Green => amount <= 13, + Color::Blue => amount <= 14, + }, + )(i) +} + +#[cfg(test)] +mod tests { + use super::*; + + #[test] + fn test_part1() { + assert_eq!(part1("Game 1: 3 blue, 4 red; 1 red, 2 green, 6 blue; 2 green\nGame 2: 1 blue, 2 green; 3 green, 4 blue, 1 red; 1 green, 1 blue\nGame 3: 8 green, 6 blue, 20 red; 5 blue, 4 red, 13 green; 5 green, 1 red\nGame 4: 1 green, 3 red, 6 blue; 3 green, 6 red; 3 green, 15 blue, 14 red\nGame 5: 6 red, 1 blue, 3 green; 2 blue, 1 red, 2 green"), 8) + } +} diff --git a/day-02/src/bin/part2.rs b/day-02/src/bin/part2.rs new file mode 100644 index 0000000..0fcfcaa --- /dev/null +++ b/day-02/src/bin/part2.rs @@ -0,0 +1,81 @@ +use nom::{ + branch::alt, + bytes::complete::tag, + character::complete::{char, digit1}, + combinator::{map, value}, + multi::separated_list1, + sequence::{delimited, pair, terminated, tuple}, + IResult, +}; + +fn main() { + println!("{}", part2(include_str!("./input.txt"))); +} + +fn part2(input: &str) -> u32 { + input.lines().map(game).sum() +} + +fn game(input: &str) -> u32 { + let (_, product) = tuple((id, all_results))(input).unwrap().1; + + product +} + +fn digit_u32(i: &str) -> IResult<&str, u32> { + map(digit1, |d: &str| d.parse().unwrap())(i) +} + +fn id(i: &str) -> IResult<&str, u32> { + delimited(tag("Game "), digit_u32, tag(": "))(i) +} + +fn all_results(i: &str) -> IResult<&str, u32> { + map(separated_list1(tag("; "), one_result), |res| { + let (red, green, blue) = + res.iter() + .flatten() + .fold( + (0_u32, 0_u32, 0_u32), + |(r, g, b), (amount, color)| match color { + Color::Red => (r.max(*amount), g, b), + Color::Green => (r, g.max(*amount), b), + Color::Blue => (r, g, b.max(*amount)), + }, + ); + + red * green * blue + })(i) +} + +fn one_result(i: &str) -> IResult<&str, Vec<(u32, Color)>> { + separated_list1(tag(", "), color)(i) +} + +#[derive(Debug, PartialEq, Clone, Copy)] +enum Color { + Red, + Green, + Blue, +} + +fn color(i: &str) -> IResult<&str, (u32, Color)> { + pair( + terminated(digit_u32, char(' ')), + alt(( + value(Color::Red, tag("red")), + value(Color::Green, tag("green")), + value(Color::Blue, tag("blue")), + )), + )(i) +} + +#[cfg(test)] +mod tests { + use super::*; + + #[test] + fn test_part2() { + assert_eq!(part2("Game 1: 3 blue, 4 red; 1 red, 2 green, 6 blue; 2 green\nGame 2: 1 blue, 2 green; 3 green, 4 blue, 1 red; 1 green, 1 blue\nGame 3: 8 green, 6 blue, 20 red; 5 blue, 4 red, 13 green; 5 green, 1 red\nGame 4: 1 green, 3 red, 6 blue; 3 green, 6 red; 3 green, 15 blue, 14 red\nGame 5: 6 red, 1 blue, 3 green; 2 blue, 1 red, 2 green"), 2286) + } +}