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@@ -57,7 +57,6 @@ func part1(muls [][]int) int {
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func part2(lines []string) int {
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var result int
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multiply := true
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- re := regexp.MustCompile(`mul\(\d+,\d+\)`)
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for _, line := range lines {
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var startIndex, endIndex int
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@@ -78,16 +77,7 @@ func part2(lines []string) int {
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continue
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}
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- matches := re.FindAllString(line[startIndex:endIndex], -1)
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- for _, match := range matches {
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- mul := make([]int, 2)
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- n, err := fmt.Sscanf(match, "mul(%d,%d)", &mul[0], &mul[1])
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- if n != 2 || err != nil {
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- log.Fatalf("Bad input: %s", err)
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- }
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-
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- result += mul[0] * mul[1]
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- }
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+ result += getResults(line[startIndex:endIndex])
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line = line[endIndex:]
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startIndex = 0
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