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@@ -5,6 +5,8 @@ import (
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"fmt"
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"log"
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"os"
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+ "slices"
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+ "strconv"
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"strings"
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)
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@@ -101,13 +103,41 @@ func calculate(gate Gate, gates map[string]Gate) int {
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return gate.value
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}
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+func zsToNumber(zs map[string]Gate) int64 {
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+ arr := make([]byte, len(zs))
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+ keys := make([]string, len(zs))
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+
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+ var index int
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+ for key, _ := range zs {
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+ keys[index] = key
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+ index++
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+ }
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+
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+ slices.Sort(keys)
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+ slices.Reverse(keys)
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+ for i := range keys {
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+ value := zs[keys[i]].value
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+ switch value {
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+ case 0:
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+ arr[i] = '0'
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+ case 1:
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+ arr[i] = '1'
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+ }
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+ }
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+
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+ result, err := strconv.ParseInt(string(arr), 2, 64)
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+ if err != nil {
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+ log.Fatalf("Can't convert binary %s: %s", arr, err)
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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 calculateZs(zs, gates map[string]Gate) {
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for key, value := range zs {
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value.value = calculate(value, gates)
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zs[key] = value
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}
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-
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- fmt.Println(zs)
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}
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func main() {
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@@ -123,4 +153,5 @@ func main() {
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gates, zs := readInput(file)
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calculateZs(zs, gates)
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+ fmt.Println("Part1:", zsToNumber(zs))
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}
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