// two form of init of empty dictionary
let emptyDictionary1 = [String:Int]()
let emptyDictionary2 : [String : Int] = [:]


// two form of init of array with two elements tuple
let emptyArrayOfTuple1 : [(String , Int)] = []
let emptyArrayOfTuple3 : [(name : String , score : Int)] = []

// two form of init of array with two elements tuple
let emptyArrayOfTuple2 : [(String , Int, Int)] = []
let emptyArrayOfTuple4 : [(name : String , score : Int, age : Int)] = []

// DictionaryLiteral
var recordTimes1: DictionaryLiteral<String , Double> = [:]

var recordTimes2: DictionaryLiteral<String , Double> = ["Florence Griffith-Joyner": 10.49,
                                                        "Evelyn Ashford": 10.76,
                                                        "Evelyn Ashford": 10.79,
                                                        "Marlies Gohr": 10.81]