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@@ -67,6 +67,26 @@ func part1(moves []move) int {
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return position * depth
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}
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+func part2(input []move) int {
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+ position := 0
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+ depth := 0
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+ aim := 0
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+
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+ for _, move := range input {
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+ switch move.direction {
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+ case "forward":
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+ position += move.steps
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+ depth += aim * move.steps
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+ case "down":
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+ aim += move.steps
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+ case "up":
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+ aim -= move.steps
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+ }
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+ }
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+
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+ return position * depth
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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("No input file specified")
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@@ -74,4 +94,5 @@ func main() {
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moves := readInput(os.Args[1])
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fmt.Println("Part 1:", part1(moves))
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+ fmt.Println("Part 2:", part2(moves))
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}
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