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@@ -29,6 +29,36 @@ func readInput(file *os.File) []int {
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return numbers
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}
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+func calculate(number int) int {
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+ a := number * 64
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+ number = (number ^ a) % 16777216
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+
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+ b := number / 32
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+ number = (number ^ b) % 16777216
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+
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+ c := number * 2048
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+ number = (number ^ c) % 16777216
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+
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+ return number
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+}
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+
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+func generateNumber(number int, iterations int) int {
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+ for i := 0; i < iterations; i++ {
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+ number = calculate(number)
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+ }
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+
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+ return number
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+}
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+
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+func part1(numbers []int, iterations int) int {
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+ var result int
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+ for _, number := range numbers {
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+ result += generateNumber(number, iterations)
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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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@@ -41,5 +71,5 @@ func main() {
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}
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numbers := readInput(file)
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- fmt.Println(numbers)
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+ fmt.Println("Part1:", part1(numbers, 2000))
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}
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