             #else
                 let r = Int(arc4random()) % n
             #endif
-            
+
             if array.index(of: r) == nil {
                 notFound = true
                 array.append(r)

    return Date().timeIntervalSince(start)
}

func createRandomIntArray(_ n: Int)  -> [Int] {
    var array = Array<Int>()
    

    }
}

extension Stack: Sequence {
    public func makeIterator() -> AnyIterator<T> {
        var curr = self
        return AnyIterator {
            _ -> T? in
            return curr.pop()
        }
    }
}

//QUEUE ARRAY
struct Queue<T> {
