jlelse
/
AdventOfCode2020
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This commit is contained in:
Jan-Lukas Else 2020-12-02 08:06:41 +01:00
parent 93c849f5e1
commit 7aa693d0b7
2 changed files with 9 additions and 17 deletions
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11
2/1/main.go
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@ -45,17 +45,14 @@ func main() {
scanner := bufio.NewScanner(file) scanner := bufio.NewScanner(file)
for scanner.Scan() { for scanner.Scan() {
text := scanner.Text() text := scanner.Text()
minString := inputRegex.ReplaceAllString(text, "$1") min, _ := strconv.Atoi(inputRegex.ReplaceAllString(text, "$1"))
min, _ := strconv.Atoi(minString) max, _ := strconv.Atoi(inputRegex.ReplaceAllString(text, "$2"))
maxString := inputRegex.ReplaceAllString(text, "$2") passwords = append(passwords, &password{
max, _ := strconv.Atoi(maxString)
pw := &password{
min: min, min: min,
max: max, max: max,
letter: inputRegex.ReplaceAllString(text, "$3"), letter: inputRegex.ReplaceAllString(text, "$3"),
password: inputRegex.ReplaceAllString(text, "$4"), password: inputRegex.ReplaceAllString(text, "$4"),
} })
passwords = append(passwords, pw)
} }
correct := 0 correct := 0

15
2/2/main.go
View File

@ -38,24 +38,19 @@ func main() {
scanner := bufio.NewScanner(file) scanner := bufio.NewScanner(file)
for scanner.Scan() { for scanner.Scan() {
text := scanner.Text() text := scanner.Text()
firstString := inputRegex.ReplaceAllString(text, "$1") first, _ := strconv.Atoi(inputRegex.ReplaceAllString(text, "$1"))
first, _ := strconv.Atoi(firstString) second, _ := strconv.Atoi(inputRegex.ReplaceAllString(text, "$2"))
secondString := inputRegex.ReplaceAllString(text, "$2") passwords = append(passwords, &password{
second, _ := strconv.Atoi(secondString)
pw := &password{
first: first, first: first,
second: second, second: second,
letter: inputRegex.ReplaceAllString(text, "$3"), letter: inputRegex.ReplaceAllString(text, "$3"),
password: inputRegex.ReplaceAllString(text, "$4"), password: inputRegex.ReplaceAllString(text, "$4"),
} })
passwords = append(passwords, pw)
} }
correct := 0 correct := 0
for _, pw := range passwords { for _, pw := range passwords {
firstChar := string(pw.password[pw.first-1]) if (string(pw.password[pw.first-1]) == pw.letter) != (string(pw.password[pw.second-1]) == pw.letter) {
secondChar := string(pw.password[pw.second-1])
if (firstChar == pw.letter && secondChar != pw.letter) || (firstChar != pw.letter && secondChar == pw.letter) {
correct++ correct++
} }
} }