Solved 9

december_10/Cargo.toml

@@ -0,0 +1,8 @@
+[package]
+name = "december-10"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

december_10/example.txt

@@ -0,0 +1,10 @@
+[({(<(())[]>[[{[]{<()<>>
+[(()[<>])]({[<{<<[]>>(
+{([(<{}[<>[]}>{[]{[(<()>
+(((({<>}<{<{<>}{[]{[]{}
+[[<[([]))<([[{}[[()]]]
+[{[{({}]{}}([{[{{{}}([]
+{<[[]]>}<{[{[{[]{()[[[]
+[<(<(<(<{}))><([]([]()
+<{([([[(<>()){}]>(<<{{
+<{([{{}}[<[[[<>{}]]]>[]]

december_10/input.txt

@@ -0,0 +1,94 @@
+<[<<({{<{<[[([()][()()])<{[]<>}{<>}>><<<[]{}>>{<<><>>({}{})}>][<<<{}<>>([])>{<{}><()>}>]><(<{(()[]){[](
+<{([({{[(<[({({}{})[()<>]}{{<>{}}[(){}]})]>({(<<<><>>{{}()}>)<<<[]><{}<>>><[{}[]]<<>[]>>>}))[{(<{([]
+([<([({(<([<({()()}(<>[]))[<[]()>{<>{}}]>]<{{{{}{}}{()()})({[]}[<>{}])}>)>)}){<<{{(<<<()<>><<><>>>
+[{{[<<[{([[{{[<>{}]<()<>>}[(()<>)[{}<>]]}<<[{}[]]([]<>)>{{[]{}}{()()}}>]][[{<({}{})<[]{}>>
+<<{{<([(((([{<[]<>>{()<>}}(<<>[]>{(){}})]([{{}<>}<[]>](<[][]><{}()>)))))[({{{<[]{}>[()]}<<<><>>
+<(<[{(<[{{{<{[[]<>]{<>()}}><[[{}()][(){}]]>}}<[<[<()()>({}<>)]><[{[]()}([][])](<(){}>[<><>])>]{
+{[[<{{<<[[<<(({}<>){<><>})[[<>()][[]{})]>[[[{}[]]<<>>]{(<>[])}]>{{<<()[]>{<>{}}>[{[]<>}<[]{}>]
+({[((((([{[({[{}[]]<[]()>}[({}{})<<>[]>])<[(()[])<{}()>]{[[]<>]{[]()})>](([({}<>)(()[])][<[]{}>])
+{[[{[({(<<{<([{}<>])<({}<>)({}<>}>>[<[{}()]([]<>)>((<>())<[]{}>)]}<([(<>())[(){}]]{[{}<>]<[][]>}){<{<><
+(<{<<[<<([[([<<><>>]<<{}()><[]<>>>)]][{(({<>{}}(()())))(<[()()]<[]()>>)}[[<<<>()><<>{}>>([{}<>][{}[]])]{<{(
+<<[({{{{{[<([((){})([]())]<((){})({}[])>)[{[{}()]{[]<>}}]>([<{{}<>}><({}<>)({}[])>]<[{<>{}}
+(([[{{({{{[<<{[]()}({})>{{{}()}[[]<>]}>{<([])>[[[]{}]]}](([<[]{}>]<<[]<>><{}[]>>))}}}(([[[{[<><>
+<<[(<[{{<((<[<()>[<><>]][[<><>]([]())]>[({<>})<<()<>><{}[]>>])[[(<[]<>>([]())){{<>[]}(()())}]]){(<(<[]<>>
+({[<<[[{<[[{{[()()]{()[]}}}]<{([{}{}]{[]()})[[()[]]<<>>]}>]>}[({((<{<><>)>{{[]()}{{}[]}}){([{}[]]<{}{}>)<
+([{{<{[(<[<<[({}())({}())]>>[{[<<>[]>[<>()]]<(<>[]){()[]}>}(<<<>[]>[<>[]]>{<<>[]>{{}()}})]]{
+<[{{<[((<([[{<<><>>{()}}{<{}[]><[]()]}]])<{({<()>{()[]}}(<(){}><[]<>>)){[({}[]){<>[]}]}}<<([()()]<()(
+<{<{[(({(({({<[]>([])}<<()<>>{<>()}>){[[()[]]<{}()>]{({}[])[()<>]}}}<[<<{}()><[]{}>>({[][]}[()<>])}{<<[]
+<[{{[<({(<[<[[()<>]({}[])]([{}[]]([]))>]{[{{<>[]}[[]{}]}(({}<>)<()[]>)]<<[()[]]>({(){}}<{}()>)>}>)}<<[[[[<<>(
+{{<(<[((({(<[<[]{}>[(){}]](<{}<>>((){}))>){(({[]{}}<{}[]>){{<><>}[[]{}]}))}<([<(<>)>[<<>{}>[{}
+<([({[<[(({[(({}))(<{}()><<>{}>)]<[{{}[]}{{}<>}]{[{}()]{{}()}}>})([[<(<>())({}{})>[<[]<>>[
+{((<<<{<(<[[[<{}<>}]<(<><>)>]]<(([(){}]{[]()}))<({{}<>}<()<>>){<()<>>{(){}}}>>>{({({()[]}[<>
+([<[[((<(<[<([{}[]])>{<(()<>)((){})>{<<>>(()<>)}}][{[(<>[])(<>[])]}[[{{}[]}[()()]]<<[]<>>{(){}}>]]><({(
+[{<([[[{([{<<([]<>){<><>}>[<(){}>]><{[<>[]](()<>)}[{()()}]>}<({{{}{}}}{[{}{}]<<>()>})<(<[]<
+(<({[{{[[(<[<(<>[])[[][]]>]{((<>[])({}<>))({[]<>})}>({<[()[]]]<{()[]}>})){(<(<<>[]>[<>{}])>{[({}<
+(<{<(({[(({[[<<>{}>({}<>)]{({}{}){(){}}}]{(<(){}>[[][]])<{()<>}>}}[[[{[]{}}[()]]](([[]()][(){}]))])
+([({<{[{<[{<({{}()}{{}()})>}]>}<<[[{{((){})<<>{}>}(({}[]){<>[]})}]]><[{{<({}<>)(()())>[{<>()}{{}()}]}{<{
+<[{[({[<<[[<<{{}{}}<{}{}>>([<>][(){}])><<<{}{}>>>]]{([{[[]()][[][]]}<{[]<>}>]<<[<>[]][[]()]><<()[
+[{({{{<<{[{([[()]({}[])]{[()()]})(((<>{})[[][]])<{{}{}}>)}]}>>}[((({{<([[]()][[]])}}{{<({}[])[{}
+{[({<{<<{[(([<<>[]>({}{})>))]{(<{{{}<>}<<>{}>}>)}}><(<(({([]())(<>[])}{{[]()}{[][]}})<{(()[])[<>{}]}>){({
+[<((<[<<(<<{<(<>)<[]{}>>[<[]{}><[]()>]}<((()[])((){}))[({}[]){[]{}}]>>([<[{}()][[]{}]>{{()[]}}][{[{}<>]<[]<
+[<[({({[([{<(([]<>)({}[]))<{{}[]}[<>[]]>><[<{}[]>({}<>)]<(())>>]]([[[{[]<>}({}[])](<[]{}>{<>()
+{[<<{(<[{(<[({[]{}}{[]{}}}]({<()[]><<>[]>}{<[]()>[{}{}]})>)}{[{(((<><>))(<[]<>>(()[])))[[<[]()>[{}()]](((
+({[<<([[{(<<<{<>()}<{}<>>>[[[]{}){()}]><[[(){}]<[]<>>]({(){}}[[]{}])>>{[{[()<>][{}()]}][[[{}{}]<<>()
+([(<((<{[[[[[{{}()}{()[]}]]<([[]<>])<[()<>][[][]]>>]][{([{()[]}(()[])]({<>{}}{[]()}))}({([[]
+(({{[<<{(([{<{()()}[[]()]>{<()<>>[[]{}]}}{[<()()>[[]{}]]{([]())({}[])}}][(<{<>[]}[()()]><<()>(()())>)
+[<(<{{{<{(<{(<<>[]><<>()>){<{}()><()<>>}}(<[<>{}]{<>{}}><[{}{}][<>()]>)>)}{{{(<(<><>)(<>())><{[]}([][
+<<<{([[<[[[(([[]{}])<({}())(<>())>)({[<>{}]{[]()}}<<(){}>{(){}}>)]{([(()()>({}[])]((<><>)<
+{{({<<<[[<(<{{{}<>}({}[])}{<{}<>><<>()>}>{({{}<>}({}()}){[[]<>]([]{})}}){{[[[][]](()())]}([<<>{}
+<<[[<{{({<{[{<<>()><()()>}<[()<>]<()()>>]{(([]<>)[{}[]]){{{}<>}{[]<>})}}>{{<[<{}<>>({}())]
+({[<[[{<<{{[{(<>{})}]{<[{}{}][[]()]>[[[]{}][()()]]}}[(<<{}[]>{<>[]}>{{{}<>}[(){}]}){{[<>{}]<{}{}>}{
+(([<{<[[([[(((()<>))({{}[]}<()<>>))[[({}[])(())]<{(){})>]][{((()){[]()}){{()<>}{<><>}}}[{{()}{()[]}}]]]){{(({
+{<[{(<[{[{{[<([]<>)<{}<>>>]}}]}]><{{<[[([{<>()}[[]{}]]({{}()}{<>{}}))]{([<[]{}>(()<>)]<[[]<>]([])
+{[<<[<(<[{<<[{{}()}{<>{}}](<{}<>>({}<>))>><{<({}[])<()<>>>[[<>[]][<><>]]}[<(<><>){{}<>}>[<[]()>{[]}]]>}]{[<{<
+(<({{[{<(<<<{[{}<>]({}[])}{[[]{}]<()[]>}>(<[[]()][()()]><[()[]][<>()]>)>>[(<<<{}()>{<><>}>>){<<{<><>}(
+(<{[[{{<(<(<({{}<>}{{}()}){[()<>]<{}[]>}>[(<{}{}><[]()>)<({}<>){()()}>]){[[([]{}){{}[]}]<[{}{}]<[][]>>][{<()
+[(<([({[[[<[[[[][]][{}{}]]([{}()]{<>{}})]{<{()()}<()<>>><{{}<>}<(){}>>}>]{{[([[][]]<()()>)
+(<(<<({{(<[{{[()<>][<>{}]}[<[]<>>]}<<{[]{}}>[[{}()]{()()}]>]{[([()()]<<>>)({()<>}[<>[]])][{{[][]}(<>())}
+[[((({(({{{[{{<>[]}[<>{}]}[[{}<>]([]())]][{(<><>)}]}][(<{{[][]}(<><>)}<[[]()]>>([[{}()]<[]<>>][<[][]>[()()]])
+<{({(([((<[<{(()[])<[][]>}{<<><>><[]<>>}><<([]<>)([]<>)>>]{[<([]{}]{<>{}}>]}>[{[(([]{})[{}{}])[<<>{}
+{(([<{(({<({{{{}{}}}[[[]]{[]()}]}{<[[]]<<>()>>(<()>[()<>])})>{{[(([]<>){{}()}){[{}]{{}<>}}]}([[([]{})]<[[](
+<{[({<{[[[{{{[{}{}]}}([<[][]>[<>[]}][<<>()>{()}])}((<({}[])[<><>]>(((){})[{}()]))[[<{}[]>[(
+{<[([(<((<<<<[{}[]]({}{})>((()())[(){}])><([[]{}][()<>])<<<>[]>([]<>)>>><[[((){}){[][]}}{[[]]
+[{(<{<{<<({({(()<>){{}[]}}([[]()]{()<>}))(([[]<>](())))}<{({()[]}{[][]})}])>>}>(({[{[{{([]())(<><>)
+<[[<([<<({[[(<[]()><<><>>)({<>})]{{<<><>>[()[]]}([()<>](()[]))}]((<{<>{}}<(){}>>))}<<[(<(){}><<>{}>)[[()[
+<[{<<<{[{<{(<[<>{}][{}()]>((<>[])[<><>]))<[({}<>)<<>[]>]<(<><>)(<>{})>>}({<<[][]>([]<>)>([<>{}><<>[]>
+[<<(<{((<([<({{}{}](<>[]))[[()<>]([][])]>((([])<(){}>))]){<{{<()[]>(()<>)}(<[]<>>([][]))}><[([(
+{[[[{{<[[{<[<<<>[]>{<><>}>{<<>{}><[]<>>}]((<{}()>(<>[])))><<{<<>{}>{(){}}}([{}{}]<<>()>)><[{<>{}}]>>}]
+((((([[(([{<({()[]}<()<>>)><<<<>()>({}{})>{{(){}}(<>[])}>}<<<{<><>}>><(((){})<[]()>){{()()}({}<>)}>
+<<[<[{<[<[<{[[()[]]({}[])]{<{}<>>[{}{}]}}[([[][]])[([]())[[]<>]]]>[(<<{}()>(()<>)>{{[]{}}<{}{}>})({([
+[{<(<{(<[<[[[{()<>}[[][]]][(()<>){{}[]}]](<{<>{}}[()[]]>(<[]>[{}()]))]([([<>{}]<()[]>){{<>{}}{()
+<[<({<({[{({{(<>{}){[]()}}<{[]<>}[(){}]>}({[<>[]]{[]<>}}))<{([{}[]])(({}[]){(){}})}[{[[]<>]}[({}())[(){}]]]
+[[[{<[((<[<{([[]<>]{<><>})<<{}[]>[[][]]>}{[[<>{}]]<<{}>([]<>)>}>{<{{<>[]}}[(<><>)[[]<>]])<{[(){}]<()()>}>}]{{
+([(<({[[{<([{{<>{}}([]<>)}[[{}[]]{<>{}}]](<[{}<>]{[]()}><((){})[[][])>)){({{{}{}}{{}{}}}[<{}{}>({}<
+<[{(((({[[{{({{}[]]<<>>)<{[]()}<()<>>>}((<(){}>([]{})))}{({[()()]([]<>)}<([]<>)[()()]>)<[{{}[
+<[({[<<<<{[({{(){}}[{}<>}}(<<>[]>[[]()])){(<()[]><<>()>)}]}><({<[{()()}]({[]{}}<{}>)>[({[]
+<<([[<{{([{<{([]{})[(){}]}{([]{})<{}[]>}><<(<>{})[<>()]>({{}<>})>}<[(<<>()><{}()>)<{()<>}<<>>
+<[[[({[({<[{((<>[]]<{}<>>){<<>()>{[]()}}}<{<{}{}>[<>{}]}{{{}[]}{{}()}}>]{<{{()()}<[]<>>}((
+[[({(([[(([<[([]<>){{}()}]>(<{{}{}}(()<>)>[{<><>}{{}<>}])]{{<[[]<>]>[[{}()]]}([<{}()>][([]{})<{}
+<(([<{([[<[((([]<>)<<><>>){[[]()]({}{})})({{(){}}((){}]}({{}()}))]([<{<>()}<[]{}>><{[]{}}<(){}>>])>
+<<[[{<<{[(<<{{[][]}[[]<>]}<<[][]><<>[]>]>([{<>}[<>[]]]{{[]()}<{}()>})>{({({}<>){[]<>}}[{<>{}}[<>[]]
+((<<<<[[(({[[<()<>>[(){}]]{(<>()){<>{}}}]}{(([<>[]><<>()>)<<(){}><()()>>)[(<{}{}>((){}))[{[][]}(()<>)]]})){
+[({(<{{<<<{<[{[]()}<<><>>][[()[]][<>[]]]>}>([([<[]<>>]{<<>()><()<>>})({<{}[]><()()>}[[[]()]])]<{<(()
+([(<({[([{{{((()())[<>[]]){{[]<>}[{}{}]}}([{()<>}<{}()>])}}<{[({(){}}(<><>)}<(<>())>][<[(){}]{(){}}
+{[[{((((([[{{[[]{}]({}{})}{[[]<>](()[])}}[{[()()]}((<>{})<(){}>)]]{(<{<>()}<(){}>>){(<{}()>{{}<>})({<>(
+([[{<[<[[<<{<{()<>}[<>()]>[[[]{}]{{}{}}]}<[{{}[]}]>>{<{{<>{}}([]())}>[(<<>()>)(<{}()>[<>()])]}>{({<[()<>]
+{(([{[{{(({(<[()[]][<>[]]>)<[(()<>){{}{}}]>}[(<<{}{}><{}<>>>){<[()()]<()()>>({[][]}<<><>>)}
+<[{<(<<[{[({[({}<>)<<>[]>](<<>()>(<><>))})[([{<><>}<()()>])]]}]><<[<({{{<>}}<([]][<>{}]>}[<(())<<><>>>])
+(<(({<[[{{[<[{<>[]}[()<>])((()()){{}[]})>]}}]]((<<<((({}{})<{}>){{{}<>}{<>}})[({{}()}{<>()}){{{}()}}]
+{[<[{(([<[{{[([]{})<[][]>]{([][])[()<>]}}<<(()<>)>>}[[(({}{}){{}<>})]]]{{[(<{}{}>[{}()])({()()}
+[{{((<<[[((<<{[]<>}<{}>>(<{}<>>{[]()})>({<()>([][])><[{}{}]{{}()}>))(({([]<>)([]())}<{[][]}<()>>)
+({([{({[({[<({{}{}}([]()))(((){}){{}{}}>>({(()()){{}()}})]<[[{{}{}}<{}[]>]{<[][]><<>[]>}]({<<>[]>
+{[({[{{[<[{([<{}{}>[(){}]](<{}<>>{{}()}))([([]()){()[]}]([{}<>]{<>{}}))}]>[{{[[{[][]}]]<((()[])([]{}))<[()
+[[(({{{(([[[{[()()]([]())}((<>){{}{}])]]({<[<>]({}{})>([<>{}]{{}{}})})]))}[(<[[(([[][]]{<>{}}){{(){}}})
+<(<({<{<[<(<{<()><<><>>}<<{}[]>([]<>)>>)<{<{[]{}}[{}()]>}([(()[]){[]<>}]{{<>()}{{}<>}})>}{[[{(()[]){(
+[(<(<([{<[{<(<()>([]<>))[{()()}<{}<>>]><{([]())<<>()>}(<{}{}>[()[]])>}]<{<({[][]}<[]()>){{{}[
+[<({<{(<<[[[<{()[]}{{}[]}>{[<><>]}]{[<()<>>({}<>)]}]][[{<[<>[]>([]())><{()()}{[]{}}>}([({}{})[[](
+<<[[{{<<([[{[(()())[()]][[{}[]]{{}}]}[[({}<>){[]{}}]{{<><>}[()[]]}]]{<[(<>())]>{({{}()}(()<>))}}])
+{<[{({[({{<({[{}()]([][])}([{}<>]{[]()}))[<(<><>)([]{})><{()()}(<>[])>]>{{(<[]<>>[{}])}[<{(){}}(<>
+<{{(({([[<[{<(<>)([]{})>{<<>{}>{(){}}}}]{[<([]{})<{}{}>>[[<>{}]{()<>}]][{{<><>}([]())}({()<>}<()>)]}>]
+{<{[{[({[(({<[{}()]({}[]}>[<()>]}{(<<>>)}))]})]{<{<{[[{(<>())[()[]]}[[{}{}][[]]]][([[]()]<{}<>>)[<[]{}>([]<>
+((<{{<[[<{{([([]{})<<>()>]<(<>{})(()<>)))([{()()}(<><>)]<(<>)(<>{})>)}([<{(){}}<<>{}>>]<[([]<
+[<<<{(((<<{([<()[]>({})]({<>()}(()())))({([])<<>>}((()[])[()[]]))}{<[<{}()>]<[{}{}]({}<>)>>{<<
+[[[<<<<[{(<<[{{}[]}]<(<><>)(<>[])>><<<<><>][[][]]>(([]{}))>>([<[[]<>]<[]<>>><{()<>}([][])>]))}<(
+<<{[[[{{{{[[(([]{}))([<>[]]<()>)][{(<>()){[]()}})]{(({<><>}{<>[]})[<<>[]>[()()]])}}}<{(<((<><>)(<>{}))<{

december_10/src/main.rs

@@ -0,0 +1,122 @@
+use std::fs::File;
+use std::io::{BufReader};
+use std::io::prelude::*;
+
+
+fn main(){
+    let file = File::open("./input.txt").expect("Read failed");
+    let reader = BufReader::new(file);
+
+    let mut line_vec: Vec<Vec<char>> = Vec::new();
+
+   for line in reader.lines(){
+    let line_as_string = line.unwrap();
+    let line_as_char_vec = line_as_string.chars().collect::<Vec<char>>();
+    line_vec.push(line_as_char_vec);
+   }
+
+   let mut round_depth: u32 = 0;
+   let mut square_depth: u32 = 0;
+   let mut curly_depth: u32 = 0;
+   let mut pointy_depth: u32 = 0;
+   let mut current_opened: Vec<char> = Vec::new();
+   let mut corrput: bool = false;
+   let mut error_scores_2: Vec<u64> = Vec::new();
+
+   let mut illegal_chars: Vec<char> = Vec::new();
+
+   for (index, line) in line_vec.iter().enumerate() {
+        current_opened = Vec::new();
+       for symbol in line {
+           match symbol {
+               '(' => {round_depth += 1; current_opened.push('(');},
+               '[' => {square_depth += 1; current_opened.push('[');},
+               '{' => {curly_depth += 1; current_opened .push('{');},
+               '<' => {pointy_depth += 1; current_opened.push('<');},
+               ')' => {
+                    if round_depth > 0 && current_opened[current_opened.len()-1] == '(' {
+                        round_depth -= 1; 
+                        current_opened.pop();
+                    } else {
+                        corrput = true;
+                        illegal_chars.push(symbol.to_owned());
+                        break;
+                    }
+               },
+               ']' => {
+                    if square_depth > 0 && current_opened[current_opened.len()-1] == '[' { 
+                        square_depth -= 1; current_opened.pop();
+                    } else {
+                        corrput = true;
+                        illegal_chars.push(symbol.to_owned());
+                        break;
+                    }
+                },
+                '}' => {
+                    if curly_depth > 0 && current_opened[current_opened.len()-1] == '{'  {
+                        curly_depth -= 1;
+                        current_opened.pop();
+                    } else {
+                        corrput = true;
+                        illegal_chars.push(symbol.to_owned());
+                        break;
+                    }
+                },
+                '>' => {
+                    if pointy_depth > 0 && current_opened[current_opened.len()-1] == '<'  {
+                        pointy_depth -= 1;
+                        current_opened.pop();
+                    } else {
+                        corrput = true; illegal_chars.push(symbol.to_owned());
+                        break;
+                    }
+                },
+               _ => println!("No")
+           }
+       }
+       if corrput {corrput = false}
+       else if round_depth == 0 && square_depth == 0 && curly_depth == 0 && pointy_depth == 0 {
+
+       } else {
+           round_depth = 0;
+           square_depth = 0;
+           curly_depth = 0;
+           pointy_depth = 0;
+
+           let mut score: u64 = 0;
+           for i in 0..current_opened.len() {
+                
+               let symbol = current_opened[current_opened.len()-1 - i];
+               score = score * 5;
+               match symbol {
+                '(' => score += 1,
+                '[' => score += 2,
+                '{' => score += 3,
+                '<' => score += 4,
+                _ => println!("ERROR")
+               }
+           }
+           error_scores_2.push(score);
+           score = 0;
+
+
+       }
+   }
+
+   let mut error_score: u32 = 0;
+   for symbol in illegal_chars {
+       match symbol {
+           ')' => error_score += 3,
+           ']' => error_score += 57,
+           '}' => error_score += 1197,
+           '>' => error_score += 25137,
+           _ => println!("ERROR")
+       }
+   }
+
+
+   println!("Error score: {}", error_score);
+   error_scores_2.sort();
+   println!("Error scores 2: {}", error_scores_2[(error_scores_2.len()-1) /2  ]  );
+
+}