Solution for 12.1.

2018/day12-1.go

@@ -0,0 +1,21 @@
+package main
+
+import (
+	"fmt"
+
+	"internal/day12"
+	"internal/util"
+)
+
+const NumGenerations = 20
+
+func main() {
+	data := util.ReadInput()
+	plants, rules := day12.ParseInput(data)
+
+	for i := 0; i < NumGenerations; i++ {
+		plants = day12.RunGeneration(plants, rules)
+	}
+
+	fmt.Println(day12.SumPlants(plants))
+}