Merge pull request kodecocodes#241 from sendilkumarn/monty-hall

migrating montyhall to swift 3

Author: kelvinlauKL

Monty Hall Problem/MontyHall.playground/Contents.swift

@@ -2,7 +2,7 @@
 
 import Foundation
 
-func random(n: Int) -> Int {
+func random(_ n: Int) -> Int {
   return Int(arc4random_uniform(UInt32(n)))
 }