From eb8653a56d9bf7dfff05f70d9dbe95b593e3f8ca Mon Sep 17 00:00:00 2001 From: Louis Vallat Date: Sun, 12 Dec 2021 23:33:26 +0100 Subject: [PATCH] Added day 10 code for part 1 and 2 Signed-off-by: Louis Vallat --- .gitlab-ci.yml | 5 +++ day10/Cargo.toml | 8 ++++ day10/input | 106 ++++++++++++++++++++++++++++++++++++++++++++++ day10/src/main.rs | 73 +++++++++++++++++++++++++++++++ 4 files changed, 192 insertions(+) create mode 100644 day10/Cargo.toml create mode 100644 day10/input create mode 100644 day10/src/main.rs diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml index 16e35e4..9aefdb2 100644 --- a/.gitlab-ci.yml +++ b/.gitlab-ci.yml @@ -48,3 +48,8 @@ day-9: stage: build script: - cd day9; cargo run --release ./input + +day-10: + stage: build + script: + - cd day10; cargo run --release ./input diff --git a/day10/Cargo.toml b/day10/Cargo.toml new file mode 100644 index 0000000..40d2066 --- /dev/null +++ b/day10/Cargo.toml @@ -0,0 +1,8 @@ +[package] +name = "day10" +version = "0.1.0" +edition = "2021" + +# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html + +[dependencies] diff --git a/day10/input b/day10/input new file mode 100644 index 0000000..0c95ec7 --- /dev/null +++ b/day10/input @@ -0,0 +1,106 @@ +<{({(([[<<([[([][])]{([]<>)([]<>)}]<[[[]{}]{()[]}]>)(<<[[]()][[]()]><[<>[]]<[]()>>>{<<<><>><<>[]>>[<[]<>>< +{<[<((<<({([{{{}[]}<<><>>}]<<{[]<>}([]<>)>>)<{(<[]()>{()()})<(()<>){(){}}>}([(()[])<[]>][[[][]]{{}}]) +<{[[{<[[{(<[[({}())[()()]]([<>()](<>()))][(([]<>)([][]))(({}{})[<><>])]><<<[[]<>][{}[]]>([<>{} +<[[<[([({[{<[({}<>)([]<>)](<<>[]>([]()))><[<[]{}>[<><>]]>}>[{[[({}<>)<()<>>][{{}[]}(()())]][[(<>{}){<>{ +[((<{((([[<<<[<><>]{{}[]}>>(([<><>]<()[]>)<(()<>)>)>([[[{}{}][[][]>]<{<>()}[<>{}]>])]]<{[<[ +([{([[[{(<({<<[]<>>[()()]>{(()[])}})<(<<{}()>(<>>>([(){}]))<[(<>{}){()}]((()[]){()()})>>>)}{ +<{{[(<[<<[[{<(()[])>[[{}()]{{}[]}]}[[(<>())[()()]]{<{}{}>}]](<{[<><>]{{}{}}}<({}[])[<><>]>><{[{}<>](<><>) 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+<[({{[<[{({[({[]<>}{{}[]})[{[][]}{[][]}]][[<{}[]>{[]()}]([()[]]({}<>))]}{<{[{}<>]<[]()>}<<[]()>[<>{}]>><(( +[{[{<{{[<<[[<<{}<>>>][{{{}[]}({}())}]]([{<<><>>({}{})}{{[]<>}}]{{{[]()}([]<>)}})><({{<[][]>}}){<{{()><()>}>[< +{{({([<({(<[({{}{}}<[]{}>)]>[(((<>()){<>()]))[<({}[])(<>{})>{<<><>>{[]()}}]]){{[<(()[])<()<>>>(<()<>>)]([<{} +[({[<(<<[{<({<{}()>{{}()}})({({})<()()>}[{[]<>}[{}{}]})><[(({}{}))(((){})[[][]])]>}<{([<[]<>>]<[{}[]](( +[<{{{<<(<[[{<([][]){<>}>}{<[[]]{[]{}}><{<>{}}>}]<<{([]())[<>[]]}><(([]{}){[]<>})[(<>())({}<>}]>>]( diff --git a/day10/src/main.rs b/day10/src/main.rs new file mode 100644 index 0000000..0b66826 --- /dev/null +++ b/day10/src/main.rs @@ -0,0 +1,73 @@ +use std::{fs, env, collections::HashMap, vec}; + +fn read_input(path: &str) -> String { + return fs::read_to_string(path).expect("Cannot read file."); +} + +fn parse_input(s: &str) -> Vec> { + return s.lines() + .map(|l| l.chars().collect()) + .collect(); +} + +fn smart_analyze_line(l: &Vec, t: &HashMap) + -> (Option, Option>) { + let mut s = vec![]; + for c in l { + if t.contains_key(&c) { + s.push(c); + } else if t.get(s.pop().unwrap()).unwrap() != c { + return (Some(*c), None); + } + } + + let mut m = vec![]; + while !s.is_empty() { + m.push(*t.get(s.pop().unwrap()).unwrap()); + } + return (None, Some(m)); +} + +fn get_scores(i: &Vec>, t: &HashMap, + s: &HashMap) -> (u32, u64) { + let mut corrupted_score = 0; + let mut incomplete_scores = vec![]; + for l in i { + let r = smart_analyze_line(l, t); + if r.0.is_some() { + corrupted_score += s.get(&r.0.unwrap()).unwrap().0; + } else { + let mut x = 0; + for m in r.1.unwrap() { + x *= 5; + x += s.get(&m).unwrap().1 as u64; + } + incomplete_scores.push(x); + } + } + incomplete_scores.sort(); + return (corrupted_score, incomplete_scores[incomplete_scores.len() / 2]); +} + +fn main() { + let args: Vec = env::args().collect(); + let mut tokens = HashMap::new(); + tokens.insert('(', ')'); + tokens.insert('[', ']'); + tokens.insert('{', '}'); + tokens.insert('<', '>'); + let mut scores = HashMap::new(); + scores.insert(')', (3, 1)); + scores.insert(']', (57, 2)); + scores.insert('}', (1197, 3)); + scores.insert('>', (25137, 4)); + for arg in args.iter().skip(1) { + let input = read_input(&arg); + let vec_in = parse_input(&input); + let t = get_scores(&vec_in, &tokens, &scores); + println!("[{}]", &arg); + println!("\t[Part 1] => Answer is '{}'.", t.0); + println!("\t[Part 2] => Answer is '{}'.", t.1); + } +} +