diff --git a/.idea/workspace.xml b/.idea/workspace.xml index cf3300e..dd5ede8 100644 --- a/.idea/workspace.xml +++ b/.idea/workspace.xml @@ -11,8 +11,7 @@ - - + - + @@ -134,6 +133,16 @@ + + + + + + + + + + @@ -255,9 +264,11 @@ + + @@ -280,11 +291,11 @@ - + - + @@ -293,26 +304,26 @@ - + - - + + - - + + - - + + - + diff --git a/day18/day18.go b/day18/day18.go new file mode 100644 index 0000000..d52b151 --- /dev/null +++ b/day18/day18.go @@ -0,0 +1,106 @@ +package main + +import ( + "AoC2020/helper" + "fmt" + "os" + "regexp" + "strconv" + "strings" +) + +func main() { + args := os.Args[1:] + input, err := helper.GetInput(args[0]) + var results []int + var resultsPart2 []int + if err != nil { + fmt.Println(err) + } + for _, val := range input{ + results = append(results,calculateFormel(val,calculateFormelPart)) + resultsPart2 = append(resultsPart2,calculateFormel(val,calculateFormelPartPart2)) + } + sum := 0 + sumPart2 := 0 + for _, val := range results{ + sum += val + } + for _, val := range resultsPart2{ + sumPart2 += val + } + fmt.Println(sum) + fmt.Println(sumPart2) +} + +func calculateFormel(formel string, formelPartFunc func(formel string) int) int{ + cleanFormel := strings.ReplaceAll(formel," ","") + var formelParts []string + result := 0 + for result == 0 { + r, _ := regexp.Compile("\\([0-9+\\-*]*\\)") + formelParts = r.FindAllString(cleanFormel, -1) + if len(formelParts) > 0 { + for _, part := range formelParts { + result := strconv.Itoa(formelPartFunc(part)) + cleanFormel = strings.Replace(cleanFormel,part,result,-1) + } + }else { + result = formelPartFunc(cleanFormel) + } + } + return result +} + +func calculateFormelPart (formel string) int{ + cleanFormel := strings.ReplaceAll(formel,"(","") + cleanFormel = strings.ReplaceAll(cleanFormel,")","") + r, _ := regexp.Compile("[ +*\\-]?[0-9]*") + formelParts := r.FindAllString(cleanFormel, -1) + sum, _ := strconv.Atoi(formelParts[0]) + for i:= 1; i< len(formelParts); i++{ + number, _ := strconv.Atoi(formelParts[i][1:]) + if formelParts[i][0] == '+' { + sum += number + } + if formelParts[i][0] == '-' { + sum -= number + } + if formelParts[i][0] == '*' { + sum *= number + } + } + return sum +} + +func calculateFormelPartPart2 (formel string) int{ + cleanFormel := strings.ReplaceAll(formel,"(","") + cleanFormel = strings.ReplaceAll(cleanFormel,")","") + formelParts := strings.Split(cleanFormel,"*") + var formelPartsSum []int + for _, part := range formelParts { + formelPartsSum = append(formelPartsSum,calculateFormelPart(part)) + } + product := 1 + for _, multiplier := range formelPartsSum { + product *= multiplier + } + return product +} + + +func sortOperation(a,b int) bool { + return true +} + +func sortOperationsPart2(a,b string) bool { + if a[0] == '+' | '-' { + return true + }else{ + return false + } +} + +func split(r rune) bool{ + return r == '(' || r== ')' +} diff --git a/day18/day18Input.txt b/day18/day18Input.txt new file mode 100644 index 0000000..a6dd058 --- 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