Day 11 solution

eleven/main.go

@@ -0,0 +1,24 @@
+package eleven
+
+import "fmt"
+
+type Eleven struct {
+	cavern cavern
+}
+
+func Init(filepath string) *Eleven {
+	eleven := &Eleven{
+		cavern: cavern{},
+	}
+
+	eleven.cavern.load(filepath)
+	return eleven
+}
+
+func (d *Eleven) Answer() string {
+	return fmt.Sprintf("There were %d flashes after 100 steps", d.cavern.totalFlashes(100))
+}
+
+func (d *Eleven) FollowUp() string {
+	return fmt.Sprintf("They all flash on step %d", d.cavern.stepsToSynchronousFlash())
+}