diff --git a/resources/input2.txt b/resources/input2.txt new file mode 100644 index 0000000..c625851 --- /dev/null +++ b/resources/input2.txt @@ -0,0 +1,100 @@ +Game 1: 1 blue; 4 green, 5 blue; 11 red, 3 blue, 11 green; 1 red, 10 green, 4 blue; 17 red, 12 green, 7 blue; 3 blue, 19 green, 15 red +Game 2: 17 red, 10 green; 3 blue, 17 red, 7 green; 10 green, 1 blue, 10 red; 7 green, 15 red, 1 blue; 7 green, 8 blue, 16 red; 18 red, 5 green, 3 blue +Game 3: 10 blue, 3 green, 8 red; 15 green, 14 blue, 1 red; 8 blue, 11 red, 2 green; 5 red, 9 green, 6 blue +Game 4: 1 red, 3 blue; 3 blue, 3 green, 1 red; 11 blue, 2 green; 2 green, 14 blue; 1 green, 7 blue; 11 blue, 5 green +Game 5: 9 green, 5 red, 10 blue; 9 red, 4 blue, 12 green; 9 green, 6 blue, 14 red; 16 green, 8 red, 6 blue; 11 blue, 13 red, 1 green +Game 6: 1 blue, 2 green, 16 red; 1 green, 19 red; 1 blue; 3 blue, 2 red, 1 green; 18 red, 2 blue, 1 green +Game 7: 2 blue, 9 red, 5 green; 11 blue, 6 green, 4 red; 7 red, 3 green, 5 blue; 5 green, 11 blue, 7 red; 17 blue, 4 red, 3 green; 20 blue, 1 green, 2 red +Game 8: 1 green, 6 red, 4 blue; 8 green, 4 blue, 2 red; 2 blue, 5 green +Game 9: 1 green, 5 blue; 4 blue; 2 red, 1 blue +Game 10: 1 green, 12 blue; 6 red, 4 green; 5 green, 14 blue, 9 red; 6 red, 13 blue, 2 green; 6 red, 17 blue, 1 green +Game 11: 19 green, 1 red; 15 red, 7 green; 1 blue, 8 red, 14 green; 1 blue, 11 green, 1 red +Game 12: 4 red, 3 green, 12 blue; 4 green, 13 red; 2 green, 15 blue, 5 red; 5 red, 10 blue, 3 green; 3 green, 17 blue, 17 red; 1 red, 4 green, 15 blue +Game 13: 5 red, 7 blue; 6 red, 1 green, 11 blue; 17 blue, 11 green, 4 red; 6 red, 9 green, 5 blue; 4 green, 14 blue +Game 14: 6 red, 15 blue, 3 green; 4 green, 4 blue, 3 red; 3 blue, 1 green, 5 red +Game 15: 4 green, 3 blue, 6 red; 3 blue, 2 red, 4 green; 15 red, 3 green, 4 blue; 11 red, 2 blue, 1 green +Game 16: 4 green, 1 blue, 12 red; 10 green, 6 blue, 10 red; 1 blue, 2 green, 15 red; 1 green, 3 red, 4 blue +Game 17: 10 green, 11 blue; 13 green, 10 blue, 3 red; 8 red, 3 green, 10 blue +Game 18: 3 red; 4 red, 1 blue; 3 green, 3 red; 10 green, 1 blue; 4 red, 6 green, 1 blue; 3 green +Game 19: 4 red, 6 green; 11 red, 4 blue, 2 green; 4 green, 8 red; 9 red, 7 green, 2 blue; 13 red, 4 blue; 9 red +Game 20: 2 blue, 1 green, 8 red; 3 green, 11 blue, 1 red; 5 blue, 4 red, 6 green; 6 green, 7 red, 5 blue; 7 red, 2 green, 1 blue +Game 21: 7 blue, 3 green; 2 green, 2 red, 7 blue; 6 blue, 3 red, 1 green; 9 blue, 1 green, 3 red +Game 22: 7 red, 5 blue, 9 green; 6 red, 1 blue, 5 green; 18 red, 7 green, 5 blue; 13 red, 11 green, 1 blue; 13 red, 1 blue, 11 green +Game 23: 10 green, 1 blue, 5 red; 2 red, 4 green; 9 green, 2 red; 10 green, 1 blue, 5 red +Game 24: 2 red, 6 green, 16 blue; 3 blue, 12 red, 3 green; 6 blue, 4 red, 12 green; 12 green, 14 blue, 3 red +Game 25: 5 red, 2 blue, 1 green; 4 blue, 14 red, 2 green; 16 blue, 4 red; 5 red; 12 blue, 16 red; 2 red, 6 blue, 1 green +Game 26: 10 blue, 6 green, 5 red; 2 red, 2 green; 8 blue, 5 red; 7 blue, 11 green; 8 green, 9 blue +Game 27: 1 red, 2 green; 6 green, 10 blue; 1 red, 6 green, 11 blue; 4 blue, 1 green, 1 red; 1 red, 7 blue; 5 green, 2 blue, 1 red +Game 28: 6 blue, 5 red, 3 green; 5 blue, 1 green; 1 green, 8 red, 1 blue; 2 blue, 4 green; 4 red, 5 blue +Game 29: 2 red, 4 green, 6 blue; 6 blue, 2 green, 1 red; 10 green, 13 blue, 2 red; 11 green, 11 blue, 2 red; 5 red, 10 green +Game 30: 4 green, 4 blue, 5 red; 6 red, 18 green, 7 blue; 1 red, 11 green, 2 blue; 11 red, 2 blue, 1 green +Game 31: 1 red, 7 green, 2 blue; 5 red, 6 green, 9 blue; 3 green, 1 red, 9 blue; 3 red; 8 blue, 6 green, 1 red; 14 blue, 4 green, 7 red +Game 32: 11 red, 2 blue, 2 green; 18 blue, 1 green; 6 blue, 1 green, 15 red; 4 red, 2 green; 13 red, 6 green, 5 blue; 7 blue, 5 green +Game 33: 12 blue, 2 red, 2 green; 5 blue, 3 green; 2 green, 6 red, 4 blue; 12 blue, 13 red; 10 blue, 12 red, 1 green; 4 blue, 4 red +Game 34: 2 blue, 1 red, 6 green; 2 blue, 1 green; 1 red, 2 green, 2 blue; 17 red, 1 blue, 2 green; 4 green, 2 red +Game 35: 2 blue, 12 red, 2 green; 2 green, 8 red, 11 blue; 17 red, 16 blue; 8 blue, 8 red; 1 green, 6 red, 9 blue +Game 36: 6 red, 14 green, 7 blue; 1 green, 1 red, 6 blue; 9 red, 10 blue, 9 green; 11 blue, 14 green, 8 red; 10 red, 6 green, 3 blue +Game 37: 6 green; 2 red, 5 green; 4 blue, 4 red, 5 green; 1 red, 7 green, 4 blue +Game 38: 1 green, 8 red, 10 blue; 3 green, 5 red, 12 blue; 13 blue, 5 red, 1 green; 3 green, 1 red; 3 red, 15 blue, 6 green; 3 green, 6 red, 4 blue +Game 39: 15 green, 3 blue; 3 green; 3 blue, 3 red, 8 green; 4 blue, 10 green, 4 red; 2 green, 5 blue, 4 red; 3 green, 3 blue, 1 red +Game 40: 2 red, 3 green, 15 blue; 5 blue, 13 green, 2 red; 11 blue, 1 red; 5 blue, 20 green, 5 red +Game 41: 1 red, 2 green, 1 blue; 10 red; 11 green, 1 blue, 5 red; 10 red, 13 green +Game 42: 10 red, 8 green, 2 blue; 5 green, 4 red; 6 red; 5 red, 9 green, 2 blue; 2 blue, 2 red, 3 green; 1 blue, 7 red, 2 green +Game 43: 8 red, 6 blue, 12 green; 11 green, 2 red, 2 blue; 4 blue, 3 red, 8 green; 14 red, 3 blue; 9 green, 1 blue, 5 red +Game 44: 4 red, 5 blue, 4 green; 9 blue, 1 green; 10 green, 2 blue, 4 red; 5 red, 15 green, 12 blue +Game 45: 1 red, 2 green; 5 blue; 3 blue, 1 red; 1 blue; 4 green, 1 red +Game 46: 3 green, 8 red, 5 blue; 1 blue, 10 red, 5 green; 2 green, 5 red, 3 blue; 5 green, 4 red, 13 blue +Game 47: 2 green, 1 blue; 2 red, 2 green, 6 blue; 1 green, 1 red, 1 blue; 2 green, 4 blue, 4 red; 2 green, 6 blue, 3 red +Game 48: 4 blue, 1 green, 2 red; 6 blue, 1 red; 4 blue +Game 49: 16 blue, 18 green, 13 red; 7 red, 13 blue; 14 green, 12 red; 20 green, 14 red, 12 blue +Game 50: 8 blue, 2 red, 1 green; 4 red, 2 green, 5 blue; 6 blue, 2 green; 8 blue, 3 green, 5 red; 1 green, 4 blue +Game 51: 2 blue, 8 red; 2 green, 3 red, 2 blue; 12 green; 3 blue, 10 green, 1 red; 13 green, 3 blue, 5 red +Game 52: 12 blue, 5 red, 16 green; 4 blue, 13 green; 2 red, 5 blue, 5 green; 4 green, 8 blue, 3 red +Game 53: 7 blue, 5 green; 8 green, 8 blue; 4 red, 1 green; 8 blue, 5 red, 11 green +Game 54: 4 blue, 3 green, 1 red; 10 green, 4 red, 7 blue; 1 red, 6 blue, 2 green +Game 55: 2 red, 10 blue; 13 red, 10 blue; 4 red, 5 blue, 4 green; 3 green, 8 blue; 5 blue, 7 red, 2 green +Game 56: 6 green, 7 blue, 9 red; 3 blue, 4 green; 15 red, 3 blue, 3 green; 5 red, 8 green, 7 blue +Game 57: 9 red, 13 blue, 2 green; 3 red, 2 green, 3 blue; 1 blue, 5 red, 3 green; 9 blue, 2 green, 2 red; 3 red, 12 blue, 3 green; 2 green, 7 red +Game 58: 4 blue, 7 red; 2 blue, 5 green, 1 red; 17 blue, 3 red; 5 green, 1 blue, 4 red; 4 green, 14 blue, 3 red +Game 59: 5 blue, 4 red; 7 red; 4 blue, 4 red, 1 green; 1 green, 1 blue, 5 red +Game 60: 4 red, 2 green; 1 green, 2 blue; 2 red, 2 green; 4 red, 2 green; 3 red +Game 61: 6 red, 14 green; 12 green, 3 blue; 3 blue, 16 green, 11 red +Game 62: 12 green, 2 red, 1 blue; 14 red, 2 blue, 4 green; 7 red, 5 green, 1 blue; 4 green, 14 red, 1 blue; 2 blue, 7 green, 3 red; 14 red, 9 green, 2 blue +Game 63: 1 red, 8 blue, 12 green; 3 green, 10 blue, 4 red; 2 red, 1 blue, 2 green; 2 red, 8 green; 4 red, 3 blue, 9 green; 13 green, 4 blue +Game 64: 4 blue, 9 green, 4 red; 10 green, 6 blue, 7 red; 10 green, 8 red, 1 blue; 13 blue, 8 green, 8 red; 4 green, 1 red, 8 blue +Game 65: 16 blue, 5 red, 13 green; 5 red, 9 green, 10 blue; 2 green, 14 red; 6 red, 5 green, 5 blue; 19 blue, 4 green, 14 red; 7 red, 1 blue, 4 green +Game 66: 7 blue, 11 green, 5 red; 7 green, 8 red, 10 blue; 3 red, 1 green +Game 67: 9 green, 2 blue, 13 red; 11 red, 10 blue; 14 red, 1 green, 1 blue; 1 red, 13 green, 6 blue; 7 blue, 3 green, 5 red; 3 green, 2 blue +Game 68: 6 green, 2 blue; 1 blue, 3 red, 5 green; 1 blue, 10 green +Game 69: 4 red, 6 blue, 1 green; 6 blue, 2 red, 4 green; 9 green, 7 blue, 2 red +Game 70: 11 blue, 1 green, 4 red; 7 blue, 1 green; 6 red, 9 blue; 1 green, 3 red, 7 blue; 1 green, 9 blue, 2 red +Game 71: 2 green, 6 red; 1 blue, 2 green, 15 red; 6 red, 1 blue; 2 green, 5 red +Game 72: 5 green, 6 red; 8 red, 1 blue, 12 green; 1 blue, 9 red, 15 green; 11 green, 1 blue, 6 red; 14 green, 5 red +Game 73: 9 green, 13 red, 1 blue; 14 green, 5 blue, 13 red; 13 green, 10 red, 16 blue; 3 blue, 7 red, 1 green; 7 red, 6 green, 11 blue +Game 74: 1 blue, 9 red, 15 green; 3 blue, 7 green; 9 green, 1 blue, 7 red +Game 75: 5 blue, 12 red, 2 green; 2 blue, 2 green; 4 green, 2 red, 7 blue; 4 green, 7 blue, 5 red; 1 green, 7 blue, 3 red +Game 76: 1 blue; 8 red, 13 blue; 4 green, 7 blue, 7 red; 3 red, 12 blue, 2 green; 2 green, 2 blue, 1 red +Game 77: 4 blue; 4 blue; 1 blue, 1 red; 1 red, 5 blue; 10 blue, 1 green +Game 78: 3 blue, 10 green, 6 red; 12 red, 7 blue, 8 green; 2 green, 18 red, 5 blue; 2 red, 15 blue, 14 green; 4 green, 6 blue, 13 red +Game 79: 7 red, 1 green; 1 blue, 6 red, 2 green; 1 blue, 12 red +Game 80: 4 red, 6 blue, 2 green; 5 blue, 2 red; 6 blue, 7 red, 2 green +Game 81: 2 green, 9 red; 2 green, 2 blue, 7 red; 12 red, 7 green; 8 green, 3 red, 3 blue +Game 82: 4 green, 5 blue; 2 red, 16 blue; 2 red, 2 green, 18 blue +Game 83: 14 red, 2 green; 3 blue, 16 red, 2 green; 4 green, 13 red, 1 blue +Game 84: 10 green, 6 blue, 2 red; 5 red, 6 blue; 7 green, 6 red, 9 blue +Game 85: 1 red; 12 red, 1 blue, 2 green; 6 red, 1 green; 12 red, 2 green +Game 86: 14 red, 1 green, 3 blue; 3 blue; 4 green, 8 red, 2 blue; 10 red, 2 green +Game 87: 4 red, 9 green, 8 blue; 3 green, 6 blue, 7 red; 4 blue, 1 red; 2 red, 7 blue, 11 green; 8 green, 2 blue, 5 red; 6 blue, 10 green, 8 red +Game 88: 1 green, 1 red; 2 green, 1 blue; 3 green, 1 red, 1 blue; 4 green; 1 blue, 3 green, 1 red +Game 89: 11 green, 7 blue, 8 red; 7 blue, 3 green, 2 red; 7 green, 6 red, 4 blue; 1 blue, 2 green, 10 red; 3 red, 2 blue, 1 green +Game 90: 10 green, 12 red, 2 blue; 7 red, 7 blue, 8 green; 2 blue, 11 red, 7 green; 6 green, 5 red, 2 blue; 7 red, 10 green +Game 91: 12 red, 8 green; 8 red, 6 green, 3 blue; 12 red, 4 blue, 2 green +Game 92: 10 blue, 3 green; 4 red, 13 blue, 8 green; 7 green, 8 blue, 7 red +Game 93: 7 red, 4 green, 1 blue; 15 green, 4 red; 2 blue, 15 red +Game 94: 10 red, 10 green, 11 blue; 3 red, 1 green, 7 blue; 9 red, 4 green, 9 blue; 7 red, 9 green, 13 blue; 9 blue, 2 green, 10 red +Game 95: 4 blue, 12 green; 7 green, 1 red, 5 blue; 2 blue, 8 green, 8 red +Game 96: 12 green, 2 blue; 11 green, 3 blue; 3 red, 2 green, 5 blue; 12 green, 2 blue, 4 red; 2 blue, 1 green, 1 red; 3 red, 11 green, 3 blue +Game 97: 6 red, 3 blue, 1 green; 1 blue, 2 red, 14 green; 4 blue, 14 green +Game 98: 13 green, 1 red, 5 blue; 2 red, 5 green, 7 blue; 19 green, 5 blue; 4 blue, 13 green; 5 green, 8 blue +Game 99: 11 red, 8 green; 16 red, 10 green; 9 red, 6 green; 3 blue, 2 red, 4 green +Game 100: 4 red, 2 blue, 4 green; 2 green, 1 red, 1 blue; 3 green, 4 blue, 5 red; 18 red, 2 blue; 9 red, 5 green, 4 blue \ No newline at end of file diff --git a/src/input/mod.rs b/src/input/mod.rs index 371f9bc..157a5d0 100644 --- a/src/input/mod.rs +++ b/src/input/mod.rs @@ -1,7 +1,13 @@ -use std::{path::Path, io::{BufReader, BufRead, self}, fs::File}; +use std::{io::{BufReader, BufRead, self}, fs::File, str::FromStr, path::Path, convert::Infallible, num::ParseIntError}; #[derive(Debug)] -pub struct AdventError(String); +pub struct AdventError(pub String); + +impl From for AdventError { + fn from(e: ParseIntError) -> Self { + AdventError(e.to_string()) + } +} impl From for AdventError { fn from(e: io::Error) -> Self { @@ -9,8 +15,14 @@ impl From for AdventError { } } -pub fn read_into_vec(path: &Path) -> Result, AdventError> { - let file = File::open(path).expect("no such file"); +impl From for AdventError { + fn from(_: Infallible) -> Self { + unreachable!() + } +} + +pub fn read_into_vec(file_path : &Path) -> Result, AdventError> where AdventError: From<::Err> { + let file = File::open(file_path).expect("no such file"); let buf = BufReader::new(file); - buf.lines().map(|line| line.map_err(Into::into)).collect::, AdventError>>() + buf.lines().map(|line| T::from_str(line?.as_str()).map_err(Into::into)).collect::, AdventError>>() } \ No newline at end of file diff --git a/src/main.rs b/src/main.rs index d370e09..c5db0d1 100644 --- a/src/main.rs +++ b/src/main.rs @@ -1,12 +1,15 @@ pub mod input; pub mod one; +pub mod two; use input::AdventError; -use one::one_one; -use one::one_two; +use one::{one_one, one_two}; +use two::{two_one, two_two}; fn main() -> Result<(), AdventError> { one_one()?; - Ok(one_two()?) + one_two()?; + two_one()?; + Ok(two_two()?) } diff --git a/src/one/mod.rs b/src/one/mod.rs index 678d129..3ab843c 100644 --- a/src/one/mod.rs +++ b/src/one/mod.rs @@ -5,7 +5,7 @@ use crate::input::AdventError; use super::input::read_into_vec; -pub fn process(lines: Vec::) -> Result { +fn process(lines: Vec::) -> Result { let calibrations: Vec = lines.iter().map(|v| { let first_digit = v.as_bytes() .iter() @@ -28,31 +28,31 @@ pub fn process(lines: Vec::) -> Result { } pub fn one_one() -> Result<(), AdventError> { - let lines = read_into_vec(Path::new("resources/input1.txt"))?; - println!("{}", process(lines)?); - Ok(()) + let lines: Vec = read_into_vec::(Path::new("resources/input1.txt"))?; + Ok(println!("{}", process(lines)?)) } struct Mutation(usize, char); -struct Pattern(String, char); +struct Pattern(&'static str, char); pub fn one_two() -> Result<(), AdventError> { - let lines = read_into_vec(Path::new("resources/input1.txt"))?; + let mut lines = read_into_vec(Path::new("resources/input1.txt"))?; - let new_lines: Vec = lines.iter().map(|str| { - let patterns = vec![ - Pattern("one".to_string(), '1'), - Pattern("two".to_string(), '2'), - Pattern("three".to_string(), '3'), - Pattern("four".to_string(), '4'), - Pattern("five".to_string(), '5'), - Pattern("six".to_string(), '6'), - Pattern("seven".to_string(), '7'), - Pattern("eight".to_string(), '8'), - Pattern("nine".to_string(), '9') - ]; + let mut mutations = Vec::::new(); + mutations.reserve(10); - let mut mutations = Vec::::new(); + let new_lines: Vec = lines.iter_mut().map(|str: &mut String| { + let patterns = vec![ + Pattern("one", '1'), + Pattern("two", '2'), + Pattern("three", '3'), + Pattern("four", '4'), + Pattern("five", '5'), + Pattern("six", '6'), + Pattern("seven", '7'), + Pattern("eight", '8'), + Pattern("nine", '9') + ]; for pattern in patterns.iter() { let indices = str.match_indices(&pattern.0); @@ -65,20 +65,17 @@ pub fn one_two() -> Result<(), AdventError> { mutations.sort_by(|l, r| l.0.cmp(&r.0)); let mut offset = 0; - let mut new_str = str.clone(); - for mutation in mutations.iter() { - new_str.insert(mutation.0 + offset, mutation.1); + str.insert(mutation.0 + offset, mutation.1); offset += 1; } - new_str - + mutations.clear(); + str.to_owned() + }).collect(); - println!("{}", process(new_lines)?); - - Ok(()) + Ok(println!("{}", process(new_lines)?)) } diff --git a/src/two/mod.rs b/src/two/mod.rs new file mode 100644 index 0000000..2a19d02 --- /dev/null +++ b/src/two/mod.rs @@ -0,0 +1,130 @@ +use std::{path::Path, str::FromStr, cmp::max}; + +use crate::input::{AdventError, read_into_vec}; + +impl FromStr for Color { + type Err = AdventError; + + fn from_str(s: &str) -> Result { + Ok(match s { + "red" => Color::Red, + "green" => Color::Green, + "blue" => Color::Blue, + _ => return Err(AdventError("No matching Color enum.".to_string())) + }) + } +} + +impl FromStr for Group { + type Err = AdventError; + + fn from_str(s: &str) -> Result { + let split = s.split(' ').collect::>(); + Ok(Group{count: u32::from_str(split[0])?, color: Color::from_str(split[1])?}) + } +} + +impl FromStr for Pull { + type Err = AdventError; + + fn from_str(s: &str) -> Result { + let mut res = Vec::::new(); + for group in s.split(';') { + let group = group.trim(); + res.push(Group::from_str(group)?); + } + Ok(Pull{groups: res}) + } +} + +impl FromStr for Game { + type Err = AdventError; + + fn from_str(s: &str) -> Result { + let split = s.split(':').collect::>(); + let id = u32::from_str(split[0].split(' ').collect::>()[1])?; + let pulls = split[1]; + let mut res = Vec::::new(); + for pull in pulls.split(',') { + let pull = pull.trim(); + res.push(Pull::from_str(pull)?); + } + Ok(Game{id: id, pulls: res}) + } +} + +#[derive(Debug)] +enum Color { + Red, + Green, + Blue +} + +#[derive(Debug)] +struct Group { + count: u32, + color: Color, +} + +#[derive(Debug)] +struct Pull { + groups: Vec +} + +#[derive(Debug)] +struct Game { + id: u32, + pulls: Vec +} + + +pub fn two_one() -> Result<(), AdventError> { + let games: Vec = read_into_vec(Path::new("resources/input2.txt"))?; + let mut sum: u32 = 0; + + let max_red = 12; + let max_green = 13; + let max_blue = 14; + + for game in games.iter() { + let mut valid: bool = true; + for pull in game.pulls.iter() { + for group in pull.groups.iter() { + match group.color { + Color::Red => if group.count > max_red { valid = false }, + Color::Green => if group.count > max_green { valid = false }, + Color::Blue => if group.count > max_blue { valid = false }, + } + if valid == false { break }; + } + if valid == false { break }; + valid = true; + } + if valid { sum += game.id } + } + + Ok(println!("{}", sum)) +} + +pub fn two_two() -> Result<(), AdventError> { + let games: Vec = read_into_vec(Path::new("resources/input2.txt"))?; + let mut power: u32 = 0; + + for game in games.iter() { + let mut max_nr_red = 0; + let mut max_nr_green = 0; + let mut max_nr_blue = 0; + for pull in game.pulls.iter() { + for group in pull.groups.iter() { + match group.color { + Color::Red => max_nr_red = max(max_nr_red, group.count), + Color::Green => max_nr_green = max(max_nr_green, group.count), + Color::Blue => max_nr_blue = max(max_nr_blue, group.count) + } + } + } + power += max_nr_red * max_nr_green * max_nr_blue; + } + + Ok(println!("{}", power)) +} \ No newline at end of file