Factorial

StoryBook/ViewControllers/ViewController.swift

@@ -16,6 +16,12 @@ class ViewController: UIViewController {
         print("Hello this is master")
     }
 
+    func factorial() {
+        
+    }
+    func factorial(x : Int) -> Int {
+        return x
+    }
     override func didReceiveMemoryWarning() {
         super.didReceiveMemoryWarning()
     }