Day10
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parent
0df7f2592f
commit
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package main
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import (
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"AOC2021/src/helper"
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"fmt"
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"os"
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"sort"
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)
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func main() {
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args := os.Args[1:]
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input, err := helper.GetInput(args[0])
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if err != nil {
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fmt.Println(err)
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}
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pointsMapper := map[rune]int{')': 3, ']': 57, '}': 1197, '>': 25137}
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sumPart1 := 0
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sumsPart2 := make([]int,0)
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for _, row := range input {
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errorRune, restScore := checkRow(row)
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sumPart1 += pointsMapper[errorRune]
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if errorRune == ' ' {
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sumsPart2 = append(sumsPart2, restScore)
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}
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}
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fmt.Println(sumPart1)
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sort.Ints(sumsPart2)
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fmt.Println(sumsPart2[len(sumsPart2)/2])
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}
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func checkRow(row string) (errorRune rune, restScore int) {
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openChunks := make([]rune, 0)
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errorRune = ' '
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for _, char := range row {
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switch char {
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case '(', '[', '{', '<':
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openChunks = append(openChunks, char)
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case '>', ']', '}':
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if char != openChunks[len(openChunks)-1]+2 {
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errorRune = char
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return
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}
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openChunks = openChunks[:len(openChunks)-1]
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case ')':
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if char != openChunks[len(openChunks)-1]+1 {
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errorRune = char
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return
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}
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openChunks = openChunks[:len(openChunks)-1]
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}
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}
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restScore = caclulateScoreForIncompletePart(openChunks)
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return
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}
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func caclulateScoreForIncompletePart(openChunks []rune) int {
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pointsMapper := map[rune]int{'(': 1, '[': 2, '{': 3, '<': 4}
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sum := 0
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for i := len(openChunks)-1; i>= 0; i-- {
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pointForChar := pointsMapper[openChunks[i]]
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sum = sum * 5 + pointForChar
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}
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return sum
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}
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@ -0,0 +1,94 @@
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({<<[<(<<<(<((()<>)<{}<>>)>)<<([<>{}][<>[]])<<()()>({}[])>>([(()())(()<>)]{{{}<>}<[]{}>})>>>>[
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<{[{<[[<[(<{({<><>}{[]<>}){<[]{}><()>}}({({})[[]{}]})>{(<{[]<>}{<><>}>([{}[]]{<><>}))(<<{}()>[
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[{[{<[(({{({<{{}{}}<()()>>(<[]<>>{<>[]})}(<<()[]>{()<>}>))<<<[{}{}]<<>[]>>>[[{[]{}}]((()<>){<>
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{[[<{({[<(<((<{}[]>){[{}[]]})[{[{}{}]({}())}]>(<{{()<>}(<><>)}[(<><>)<[]{}]]><{<()[]>([][])
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@ -0,0 +1,10 @@
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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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