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@@ -58,6 +58,30 @@ func part1(batteries [][]byte) int {
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return sum
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}
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+func part2(batteries [][]byte) int {
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+ var sum int
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+
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+ for row := range batteries {
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+ digits := make([]byte, 12)
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+ var index int
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+
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+ for i := 12; i > 0; i-- {
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+ index = findMaxIndex(batteries[row], index, len(batteries[row])-i+1)
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+ digits[12-i] = batteries[row][index]
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+ index++
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+ }
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+
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+ num, err := strconv.Atoi(string(digits))
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+ if err != nil {
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+ log.Fatalf("Failed to convert %s to int!\n", string(digits))
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+ }
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+
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+ sum += num
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+ }
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+
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+ return sum
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+}
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+
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func main() {
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if len(os.Args) < 2 {
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log.Fatal("You need to specify a file!")
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@@ -71,4 +95,5 @@ func main() {
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batteries := readInput(file)
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fmt.Println("Part1:", part1(batteries))
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+ fmt.Println("Part2:", part2(batteries))
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}
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