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@@ -25,11 +25,30 @@ func readInput(path string) []string {
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return parts
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}
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+func hash(text string) int {
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+ var current int
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+ for i := range text {
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+ current += int(text[i])
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+ current = current * 17 % 256
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+ }
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+
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+ return current
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+}
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+
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+func part1(steps []string) int {
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+ var result int
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+ for i := range steps {
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+ result += hash(steps[i])
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+ }
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+
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+ return result
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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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}
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steps := readInput(os.Args[1])
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- fmt.Println(steps)
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+ fmt.Println("Part1:", part1(steps))
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}
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