Day 6 solution

six/main.go

@@ -0,0 +1,26 @@
+package six
+
+import "fmt"
+
+type Six struct {
+	lanternfish lanternfish
+}
+
+func Init(filepath string) *Six {
+	six := &Six{
+		lanternfish: lanternfish{},
+	}
+
+	six.lanternfish.load(filepath)
+	return six
+}
+
+func (d *Six) Answer() string {
+	d.lanternfish.simulate(80)
+	return fmt.Sprintf("After 80 days there are %d fish", d.lanternfish.population)
+}
+
+func (d *Six) FollowUp() string {
+	d.lanternfish.simulate(176)
+	return fmt.Sprintf("After 256 days there are %d fish", d.lanternfish.population)
+}