Day 10
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[({<(({{(([([[{}{}](<>())][<(){}>[[][]]]){{(<>{})<{}()>}}](<<<()<>><()<>>>([<>[]])><{<[][]
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<<([{([<([{<<{[]<>}([]{})>><{(<>{})([][])}[[{}]((){})]>}([[([]<>)[<><>)]{<{}[]>{[]()}}]<<[{}{}]<<>{}>>{[{}<>]
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{<<[(<{<({[{[{[][]}{[]{}}](<[]<>>[<><>])}]}[<{(<<>{}>(()()))<(<>{})(<>())>}>{{{{()()}{<>}}}}])><<{{<{[
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{({([<<<[<<<<[{}{}][<>]>[(<><>)]>[<{{}()}<[]<>>>]>>([{[[()<>]{[]<>}](([]{})[<>()])}(((())[{}])[{<>()}
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[{[<[{[(([{({[()<>](<>())}[{<><>}[[]()]])((<{}[]><()[]>>[[<>{}]{<><>}])}<[<{{}[]}{()()}>{(
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{<<{{[{{({{((([]()){{}()})){(<{}[]><()>)(<<>[]><[]<>>)}}[[[<()<>>][<()<>>(()())]]<[[[]<>]{
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[{({[{[{[[<[<[<>{}]<[]>>{<<>[]><{}[]>}]>[[[[[]<>><<>{}>](<{}[]>[{}<>])]{<{<>{}}(<><>)><<{}[]>(<><>)>}]]<{{{{[
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<<<{((({<<<[[[()<>]<[]()>](<{}()>)](({[]{}}<<>()>){{[]{}}})>{[[[{}[]]<{}{}>]{[[][]]{<>()}}]}><
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({[<<{<({{[[(({}[])[<>()])<<{}[]>[[]<>]>]([{{}[]}<{}[]>]<{()[]}<{}()>>)]<[{<[]()>[{}{}]}{[()[]]}]<
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([([[{[((<[[<[<><>][(){}]>[(()[])]]]<{<{[][]}([]())>([{}][<>{}])}<(<[][]>[(){}])(([][])<<>()>)>>><[
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{<[<<([(([<([[{}[]](()())]<{<>()}>)[<(<>{})<<>{}>>{{[][])[()<>]}]>[[({<>{}}([]{})){[()()]}][{[<>]}(
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([<[<[([([[[<<<>{}>><{()()}[{}[]]>]({<<>[]>{<>()}})](((<<>{}>{{}()}))<[([]<>){{}{}}]>)][{(
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[[({(<[{<(([<{(){}}>)({<()[]><<>()>}<<()[]><<>>>))[{({(){}})(<{}<>>{[]<>})}[[([]())[()[]]]]])([<
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[<<<{[({[<[<{[{}[]][[]<>]}>{<{{}<>}>({()[]}[{}[]])>]([<[{}()]<{}[]>>{[{}()]}]{[[(){}]{<>}]<<<
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{[<[({((([(<{({}())}([{}[]]{<>[]})><[[[]{}](()())]{{<><>}{[]{}]}>)[[({<>()}<()()>)([()<>][()<>]
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<<({({[[(<(<{[<>[]]({}{})}>)[<[{(){}}[{}[]]]<{<><>}>>]>{<(([()]<(){}>)([{}<>])){(<<>()>{[]()})(<{}{}>{{}{}
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<{({(<<{[[{<{[<>()]{<>[]}}>}([{{<>[]}{[]()}}{{{}{}}{<>[]}}])]<<(((<>[]))<<[]()>[()()]>)<<<{}{}>>{<()<
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{([{{[{<<<{<[{()()}{<>}][{[][]}{[][]}]>}<<[((){}){{}()}]{{(){}}{[]<>}}>[{<{}[]>}<{[][]}{{}[]
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{{[((<[[[<{([<()[]>[()[]]]{[<><>][<><>]})([{()}][{<>[]}{{}[]}])}[[[<{}{}>({}{})]{<()<>>({}[])}]<
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{(({[((<{(<{<<<>[]>{{}<>}>}(([(){}]<[]<>>))>[[(<<>>{<><>})(({}<>)(()<>))]])}>([<[(<[{}<>][[]<>]>[(
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<{{[(<<{{(<({<<><>>({}())}[<[]()><<>[]>]){{(()()){<><>}}[({}{}){[]<>}]}>{(<<{}()><()()>>{{<>{}}{{}<>
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{{<{({{{([{<({{}<>}{[][]}){{()[]}}><{{[]}{<>{}}}[{()<>}[<>[]]]>}[{([()]){({}<>)[<>{}])}(<<[][]>[()[]]>([
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[{<(<({<<[[(<[[]{}]({}{})><<()<>>{[]()}>)({<[]()>([]())}{{[]{}}{<>[]}})]]{[(<{{}[]}{[][]}><[(){}]<<><>>>)]}>>
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{<<(<({<{[<[{<()<>>}]<{[<><>]{[]{}}}<{<><>}>>>([[<[]()><{}()>]{{<>[]}>](<[<>{}]<[]{}>>[[()[]]{[]{}}])
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<({<{<[{([<(({{}()}(<>()))([<><>]{[][]}))><<[<[][]>{()()}]>>]){[[({{[]}}{[()()]}){[(()[])[{}()]](([]<>){<><
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[({{([<[({<((({}[])(<>()))<[<><>][{}{}]>)[[([]{})<<><>>]((<>{})([]{}))]>(([[[]()}{<><>}][{()[]}]){{<{}{
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<{({[[{({((({([]<>){<>[]}}{{<><>}})(({()<>>[[]{}])<(()[])[[]{}]>)))})[{<<({[<>()]})([[()[]]<{}
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{({(<(<([{{{(<{}>)<{[]()}[[]()]>}[([<>{}]{[]()})[[{}](<>[])]]}{[({{}{}}[{}()])([{}()]{<>[]})]{[(()[])(()
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{<{{<[[({[{<({()<>}{()<>})>{[{()[])[()[]]]}}][({<<[]<>>[()[]]><<{}<>>[{}()]>})]})<[({<({[]()
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<<(<{[<[(({{<(()[])<{}{}>><(<>{})<{}[]>>}[<([]())({}{})><<()[]><()[]>>]}<[[{(){}}{<>()}]{((){}){<><>})]<
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<<<((([{({<{<[(){}]{(){}}>}{<(()<>)<{}{}>>}>[([<<>()><<><>>])<(([]{})){<{}[]>[{}()]}>]}[{{<<()[]>(
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({{([[<[[<<{({()()}({}[]))}[{(()[]){{}<>}}{([]<>)(()())}]><<{{{}[]}}{[[]](()()>}>{<({}[]){[]
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<[<[[<[[<{{{<{<>()}[()[]]](<{}[]><<>[]>)}<<<{}()>([]<>)>{([]{}){[]<>}}>}([{{<><>}[[][]]}{[<>
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{[[{[<{{[{{[[<{}[]><<>>]]}<<<{()()}([]<>)>{<<>[]>[<>[]]}>([{()[]}{[][]}]{{{}{}}(<>{}}})>}<((<<()[]>>[<()()><[
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([(<{(({[([([[{}]])]({<(()())<<>{}>>}<<{{}()}>[<<>()><<><>>]>))<{{{{()()}[(){}]}>}>]})<[<<{<[<{}{}><{}{}>]{{
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{{{<[{{([<[<([{}[]]({}<>))[([]())]>](<(<()()>[<>])>{[(()<>)]({<>[]}(<>{}))})>{({[{[]<>]<{}{}>]<[{}<>]<<
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<{<<<([([{<[(([]{})(<>)){(<>{})<<><>>}]{({<>[]}{{}()}){{{}{}}{{}()}}}><[<(()){[][]}>{<{}{}>{<>()}}]>}][[
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([({{({{([[{[{[]()}{[]{}}]<<[]<>>(()<>)>}[((<>{})[<>()])[[{}()]<<><>>]]]][<[<(()<>)(<>)><[<
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[<<{[(<[<<{{{<<>{}><<>[]>}}}>((<[[()<>]<<>()}]<(<>()){<>()}>>([(()<>)([]{})][[(){}]{{}{}}]))[{[[[]{}]]<
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<{<{<<[([[(<[[[]()]<{}{}>][{[]<>}(()[])]]({{<><>}(()[])}{([][])(()())}))(<[[<>{}]][{()<>}]>)][<{<(
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[{[[[[((<[[((<[][]>{(){}})[{()()}])]{<<{(){}}>{(<><>)(()[])}){<[()]<[]()>>}}]>))[[<{([{{()<>}{()
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([{({<<{[(([(<[]<>>{[]()})](<{{}{}}[()()]>)))[[<{({}())}{<()[]>}>](<([[]{}][<>{}])<{{}{}}[()[]]>>[<
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([[<{[[{[[<{{[{}[]](<>{})}([()<>](()[]))}>(([{[][]}<<>()>]((<>{}){<>[]})))]([([{{}[]}([]()))(<{}()><<><>>))[
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(<<[{<<<{(<<([()][(){}])({[]{}})>{<{{}<>}{()()}><[{}[]](<>[])>}>{[[{()()}[[]<>]]<<{}()><[]{}>>](<{<>[]}>{<<><
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{<(<({{[({[{{{(){}}[<>[]]){[<><>]{[]()}}}<<[[]<>]{{}<>}>{((){})([][])}>]}<{<((()){[]()})<{<>(
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[[[((({{[[{(<[[][]]((){})>){[([]{})]<<{}<>><()[]>>}}<((<()()>))[{([]())([][])}[<()>{(){}}]]>][{(<<<>()><(){
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{<<<{{(({{{<({{}[]}({}<>))<{{}}>><({<>{}}{<>{}})>}[([[<><>]<[]>](({}{})<(){}>))([<{}[]>[()[]]]
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[((([(([{{{([{<><>}]<((){}){{}[]}>)<([()[]]{[][]})<{{}()}{[][]}>>}}}(<<<<<()<>>[{}[]]>>>{<[
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[{(<[[{{({(({((){})((){})}{(<>{})<[]{}>})([(()[])<()[]>]))[([{()[]}[[]<>)])<{{()<>}(()())}<{[][]}[{}<>
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<(<(<([(((<{(<<>{}>[<>{}]){<{}<>>({}<>)}}(<<<>[]>[()()]><{[][]}>)>)))[<{(<{([]{})[[]{}]}[<{}{}><()()>]
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<<(<([<[(<<{[[()[]]([]{})]}[[((){})<{}()>]<<[]<>>({}<>)>]><(<{<>()}<[]{}>>(<{}{}>(()<>)))>>){{([<([]{})<{}{}>
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<{<{{{(({{<[[([]<>){{}<>}]{{[][]}}]>{<<{()<>}({}[])>{{{}()}{(){}}}>}}[<(<([]())<<>()>>[{[]}{<>[]}]){[[{}<
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[{(<(({(<<{[[({}()){<>{})]]}[[{[<>[]][{}[]]}]((([][])<(){}>)[{[]{}}(<>())])]>>[(((({(){}}<{}>)(<{}{}><[]
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{(([[[(<<<<<{<<><>><{}[]>}[[[]{}]([]<>)]>{{{<><>}<[]{}>}[<{}<>><()<>>]}>>[{{<{<>}(()<>)>[{{}<>
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{([{[([<[<<[[(()()){()()}](([]()){<>()})]>({<<{}()><<>()>><[<>{}]{{}<>}>})>]{{(<(<[]<>>{<>
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{(({{<[[{([[{[[]()][{}{}]}{[()<>]<()[]>}](<({}[])>{[[]{}]<<>[]>})]{{({{}<>}<(){}>){<{}()>({}{})}}[[{
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{(((<<{<([[{([()[]][[]<>])}{{[<>{}]<{}()>}<<<>[]>[<>{}]]}](({[()()](<>{})}[<()>]))]{{[[[[]<>]{<>
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([[[({{(([{{([<>{}]){<{}{}><{}[]>}}<[[(){}][[]{}]][(())[<>{}]]>}])[{([{{<>()}[[]<>]}{[[]()]{[][]}}]{{{
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{[<(<<{<{<[([(()())[<>()]]{{{}<>}{[]<>}})]>}>}{{<([<<<[]()><{}()>>([[]()]([]()))><{<<><>>([]<>)}<(<>
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<[<(((<[(<[[[<<>[]>{()[]}][{[][]>(<>)]](<{<><>}[()]>)]>{<{({{}{}}[{}{}]){[[]<>]<{}>}}[{({})
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[{<[[[<[[[<[{[<>[]]{[]()}})<<[[]()]{[][]}>([[][]]{()()})>>]]([[({[<><>][<>]}{<<>()>([])})<([{}<>][<>()])<(
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{((<[<(<(({([(()<>){[]}]<[{}<>]{()<>}>)([([]{})][{(){}}[[]<>]]]}<<{{()<>}(()[])}<(<><>)<()>>>>)({{[<(){}>[
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[([{<((([[<<[{{}{}}({}<>)]>><<[[[]()](<>())]>>]([([({}<>)](<{}<>>))<[[{}{}]]>]<[<[[][]]{()()}><{{}<>}((){})
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([[[{{[[({{{{{()<>}{[]{}}}}[<<()[]><[]{}>>[[<>()]]]}{<[{(){}}(<>())][<{}<>><[][]>]>{<([]{})[()()
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[<(<<({(<[[{[{()()}{{}{}}][[<>()>]}{[[<>{}](<>[])]}]([{([][])<()>}{<<>()>[()<>]}]{{[[]][[]<>
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[<<({([<{[{(([{}()]<<><>>))}[({<[]()>([]{})}[{()()}(()<>)])(<([][])(())>{<[]()>{[]{}}})]]{[<({<><>}<[]
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<{({(<{{(<{([[<>{}]])<<[()[]]{<>{}}>>}{[((()<>))<(()())>][{{[]{}}[<>()]}(<<>{}>[()()])]}]{{({<{}
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(<{{[<[[{[<{{[{}()]}{({}{})}}(<{[]()}({})><<[]{}>(<>[])>)>](<{[(())({}{})]((<>[]){()<>})}[{[[]<>][{}[]]}[
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(<<{<[[{(([{[(<>{})([])]<[<>()][<>[]]>}]<[([[]()](()[]))({(){}}<(){}>)]<{{{}{}}<[]<>>}<([])([]<>)>>]))}]{
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[([{({{((<[[([{}[]]{<>}){(()[])([]{})}][{<{}<>><()()>}]]<([(<>{})[<>[]]])]>))}[((({(([[][]
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<[{<<[{{<{{[{[()()]{()[]}}][([{}<>]<()<>>)<[{}{}]>]}{<[(()<>)][((){})({}())]>((<<>{}><<>()>)<[{
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([[{[<[{[<[([({}[]){{}()}]){({[][]}(()))[<[][]>{{}<>}]}]>]}(({{({<{}<>>[[]<>]}{{()}})({[<>()]}<{{}}>)}[
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([[[<[<(<<<[{{[]}<<>{}>}[(<><>){{}[]}]><[{{}<>}<()()>][[{}()](<>{})]>><[{{()[]}<{}>}<[<><>]({
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([(([[[<{<<<{([]){[][]}}{(<>[])[{}()]}>[<(()[])[()[]]>(<()<>>(()<>))]>([<{<>{}}<{}[]>>(<()[]><{}
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(<[{<<(<<({<[(())([]<>)][<()[]><{}<>>]>({<{}{}>{{}}}{(<>[])<[]{}>})}){[({[()()][[]{}]}[<<>[]>{{}
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({[{(<(([(<[{<[]<>>(()())}[(())[{}<>]]]<{{()[]}{()()}}>>[<<[{}{}][{}{}]>((()()>[{}()])>[[<<>{}>(<
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(([(<<([<[({(<{}()>)({<>{}}({}<>))}[({{}<>]{[]()})<{[]<>}>])<<[{{}()}{()<>}]{<()()>{<>()}}
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[((<{<([{{<<<(()[])(<>())>{<{}()>(<>())}>[<<[]>({}())>]>({<[{}<>]{<><>}>})}}])<<[<{([{[][]>{()()}
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<[({(<[{{[[(((()<>)<{}[]>){<[]()>[[]()]})<[[{}()](()<>)]<((){})>>]]<(({(<>[])([]{})}[{()}[()()]
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(<[{[<(<[([[(<(){}>{{}())){(<>{})[{}()]}]<<({}[]){[]()}>(({}{}){{}{}})>](<{<[][]>([]())}[<()>{<>
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{<[[<((((({({[{}[]]{<><>}}({<>()}{{}<>}))([[()()]([]{})]{[{}]{<>()}})}{<((<><>)(<>[]))[[{}()][{}[]]]><<[<>{}]
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[[[{{{(<<([(<(()[])<[]{}>>[[<>{}]<{}>]){<{[]()}(()<>)>([{}[]][{}<>])}])(<{<<{}[]>{<>{}}>([()[]]<{}{}>)
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{<[(({[[((([{(<>[])<<>[]>}[<()[]><{}{}>]](<([]{})(<><>)>{{()}({}[])}))))([[(([<>{}][{}()]))<{{{}()}<{}[]>}
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<<<<<<<[{<[({{{}[]}<<>>}[<{}<>>([])>)<{({}[])}<({}())>>]{{{{{}()}}}}>{<[(({}[])(<><>))](<{()<>}>([{}{}][[]{}
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[[(<(<{<([(<[[[]{}]{[]{}}]<[{}<>]<{}<>>>><{<()[]>({}())}([()[]]{()})>){{{{<>{}}<()<>>}(<{}()>([]
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(<<([<(([([{[[<>[]](<><>)][[<><>]{{}[]}]}[{<()()>}]]){([((()()){<>{}})(({}()}([]<>))]{<{<>()}(
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({({<(([(([(({{}<>}{(){}}){{()[]}[{}<>]})[[{()()}{()()}]((()))>]{({([]{}){{}[]}}{<{}()>[{}()]})(<[[]{}]{
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[{[{<[[((<[(((<>[])([]<>>)({()<>}))][{<({}[]){<>{}}>}(<{<><>}{{}{}}>{<()[]>{(){}}})]>))[{{{
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[<(({[<<<{(<[<(){}>{[][]}][[()<>]<{}{}>]>{{<[]{}>[()[]]}{({}[]){[]<>}}})((({<><>}(()))[([]{})]))}{<<({{}{
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({([<{{((<({([{}<>]([]{}))(<[]<>>{[]()})}<[([]{})[[]{}]][(()<>)<[]<>>]>)[(<{[]<>}<{}()}>[({}<>)<<>{
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[<[(<{([(([(<[{}{}]{{}[]}>[([]())[()()]])(<{(){}}{{}{}}>)])([{<<[]{}>>{{[]()}[{}{}])}][{{{{}<>}}}
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{(<{((<[[[({[((){})]}{<({}<>)(<>())>[<{}<>>([]<>)]})][{<{<[]{}>{()[]]}(([]{})<<>()>)>([{{}<>}<[][]>]{
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<{(([<([({[(<(<>{})[[]<>]><[[][]]<{}[]>>)](<{{{}<>}(<>())}<[<><>]([]())>>([[()[]]<<>{}>]))}<
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{{([<<({[[<<<{()[]}<{}()>>[[(){}>{<><>}]>[[{[]}]{({}<>){{}{}}}]>[[{<[]<>><()<>>}<{<>()}>]<{
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([{<{<((([<[(<[]{}><<>()>)(({}<>)[[]<>])]><{[(()())[()()]]}>]<({{<<>[]>[<>{}]}[[()<>]]])[[<({}[])({}<>)><
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[<[([(<([[<[[[()[]][[]<>]][<{}<>>]](([{}{}])[{[]{}}({})])>[<<({}()){<>[])>{<<><>>(<><>)}>]]{{{{({}<>)<<>
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<<({[<{[({{[[<[]()><<>>][<()[]>[{}<>]]]}<{<[(){}]{[]{}}>({{}<>}[<>[]])}{<{[]()}<<>()>>{(<>[])[{}
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{{<{({{([{<<<{<>[]}(<><>)>[<<>[]>({}{})]><<{()}[{}[]]>[<()[]>{<>{}}]>>{{[<{}()>(<>[])]}[(<[]()>(()))
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[({(([(([{<<{[<>{}]({}{})}{[[]()]{[]{}}}>>}}<{<{<((){})(<>[])>{([]())<{}<>>}}<[<()>][<(){}>{
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(<<[<<({([([(<[]<>>{{}()})([()<>][()<>])](<({}{}){<>{}}>{(<>{}]{{}()}}))]{{[[([]())<[]<>>]
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<[[{{({{{<<[<<[][]>{<>()}>{{()()}([]<>)}]<[{()[]}{()}][[[]]]}>>}<<[{{{<>[]}<<>{}>}({{}()}{[][]}
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[{<{[[<[<([((<{}<>><<><>>){<[]{}>[{}{}]})[[([])[[]()]]({<><>}<(){}>)]]{<((()[])([][])){(<>())([][])}>[{
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<(([{<[<<[{<[[[][]]](<[]<>><<>[]>)>([{(){}}{{}[]}]{<<>[]><{}()>})}<{{([][])[{}<>]}{{{}()}}}[<(<
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<<{((([<[(<[{<[]()>}{(())<()<>>}]>[{<[<>()]{()<>}>[{<><>}{[][]}]}{[<{}{}>({}<>)]{{[]()>{[]<>
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[[[{[[[{{<(<{{[]<>}[<><>]}({()()}[()[]])>[((<>[])(<>)){{()<>}([][])}])[{{{[]<>}<()[])}({<>[]})}(({
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{<<<(<(((({[[([])([][])]<<[]<>>>]}{{<{{}[]}(<>[])><{[][]}[[]{}]>}<{<()[]>}<{[]{}}{()<>}>>})){<<<[{[]<>}[[]
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@ -0,0 +1,156 @@
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use std::collections::VecDeque;
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pub fn day10() {
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let corrupted = "{([(<{}[<>[]}>{[]{[(<()>";
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let result = parse_line(corrupted);
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println!(
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"corrupted: {:?}, score: {:?}",
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&result,
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error_score(&result)
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);
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let incomplete = "[(()[<>])]({[<{<<[]>>(";
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println!("incomplete: {:#?}", parse_line(incomplete));
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// let input = r#"
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// [({(<(())[]>[[{[]{<()<>>
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// [(()[<>])]({[<{<<[]>>(
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// {([(<{}[<>[]}>{[]{[(<()>
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// (((({<>}<{<{<>}{[]{[]{}
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// [[<[([]))<([[{}[[()]]]
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// [{[{({}]{}}([{[{{{}}([]
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// {<[[]]>}<{[{[{[]{()[[[]
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// [<(<(<(<{}))><([]([]()
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// <{([([[(<>()){}]>(<<{{
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// <{([{{}}[<[[[<>{}]]]>[]]
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// "#;
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let input = include_str!("../input/day10.txt");
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let parsed_lines = input.trim().lines().map(parse_line);
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let total_error_score: u64 = parsed_lines
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.clone()
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.filter_map(|res| error_score(&res))
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.sum();
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println!("total error score: {}", total_error_score);
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let completion = autocomplete(&parse_line(incomplete)).unwrap();
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println!(
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"to complete: {:?}, score: {}",
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&completion,
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autocomplete_score(&completion)
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||||||
|
);
|
||||||
|
|
||||||
|
let mut autocomplete_scores = parsed_lines
|
||||||
|
.filter_map(|res| autocomplete(&res))
|
||||||
|
.map(|completion| autocomplete_score(&completion))
|
||||||
|
.collect::<Vec<_>>();
|
||||||
|
autocomplete_scores.sort();
|
||||||
|
println!(
|
||||||
|
"middle score: {}",
|
||||||
|
autocomplete_scores[autocomplete_scores.len() / 2]
|
||||||
|
);
|
||||||
|
}
|
||||||
|
|
||||||
|
static OPENERS: &[char] = &['(', '[', '{', '<'];
|
||||||
|
static CLOSERS: &[char] = &[')', ']', '}', '>'];
|
||||||
|
|
||||||
|
fn parse_line(line: &str) -> ParseResult {
|
||||||
|
let mut iter = line.trim().chars().peekable();
|
||||||
|
let mut finished = vec![];
|
||||||
|
let mut in_progress: VecDeque<Chunk> = VecDeque::new();
|
||||||
|
while let Some(c) = iter.next() {
|
||||||
|
if OPENERS.contains(&c) {
|
||||||
|
let index = OPENERS.iter().position(|&e| e == c).unwrap();
|
||||||
|
let new = Chunk {
|
||||||
|
opener: c,
|
||||||
|
closer: CLOSERS[index],
|
||||||
|
chunks: vec![],
|
||||||
|
};
|
||||||
|
in_progress.push_front(new);
|
||||||
|
} else if CLOSERS.contains(&c) {
|
||||||
|
if in_progress.front().unwrap().closer == c {
|
||||||
|
let closed = in_progress.pop_front().unwrap();
|
||||||
|
match in_progress.front_mut() {
|
||||||
|
Some(new_cur) => new_cur.chunks.push(closed),
|
||||||
|
None => {
|
||||||
|
finished.push(closed);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
return ParseResult::Error {
|
||||||
|
expected: in_progress.front().unwrap().closer,
|
||||||
|
found: c,
|
||||||
|
};
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
panic!("unreachable");
|
||||||
|
}
|
||||||
|
}
|
||||||
|
if in_progress.is_empty() {
|
||||||
|
ParseResult::Chunks(finished)
|
||||||
|
} else {
|
||||||
|
ParseResult::Incomplete {
|
||||||
|
finished,
|
||||||
|
in_progress,
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
fn error_score(result: &ParseResult) -> Option<u64> {
|
||||||
|
match result {
|
||||||
|
ParseResult::Error { expected: _, found } => Some(match found {
|
||||||
|
')' => 3,
|
||||||
|
']' => 57,
|
||||||
|
'}' => 1197,
|
||||||
|
'>' => 25137,
|
||||||
|
_ => 0,
|
||||||
|
}),
|
||||||
|
_ => None,
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
fn autocomplete(result: &ParseResult) -> Option<Vec<char>> {
|
||||||
|
match result {
|
||||||
|
ParseResult::Incomplete {
|
||||||
|
finished: _,
|
||||||
|
in_progress,
|
||||||
|
} => Some(in_progress.iter().map(|chunk| chunk.closer).collect()),
|
||||||
|
_ => None,
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
fn autocomplete_score(completion: &[char]) -> u64 {
|
||||||
|
let mut score = 0;
|
||||||
|
for c in completion {
|
||||||
|
score *= 5;
|
||||||
|
score += match c {
|
||||||
|
')' => 1,
|
||||||
|
']' => 2,
|
||||||
|
'}' => 3,
|
||||||
|
'>' => 4,
|
||||||
|
_ => 0,
|
||||||
|
};
|
||||||
|
}
|
||||||
|
score
|
||||||
|
}
|
||||||
|
|
||||||
|
#[derive(Debug)]
|
||||||
|
struct Chunk {
|
||||||
|
opener: char,
|
||||||
|
closer: char,
|
||||||
|
chunks: Vec<Chunk>,
|
||||||
|
}
|
||||||
|
|
||||||
|
#[derive(Debug)]
|
||||||
|
enum ParseResult {
|
||||||
|
Chunks(Vec<Chunk>),
|
||||||
|
Error {
|
||||||
|
expected: char,
|
||||||
|
found: char,
|
||||||
|
},
|
||||||
|
Incomplete {
|
||||||
|
finished: Vec<Chunk>,
|
||||||
|
in_progress: VecDeque<Chunk>,
|
||||||
|
},
|
||||||
|
}
|
||||||
|
|
@ -8,7 +8,8 @@ mod day06;
|
||||||
mod day07;
|
mod day07;
|
||||||
mod day08;
|
mod day08;
|
||||||
mod day09;
|
mod day09;
|
||||||
|
mod day10;
|
||||||
|
|
||||||
fn main() {
|
fn main() {
|
||||||
day09::day9();
|
day10::day10();
|
||||||
}
|
}
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue