import UIKit

var myString = "Ala ma kota!"
var myInteger = 12
var myDouble = 12.21

let myConstantInteger: Int = 12
let myConstantDouble: Double = 12.21
let myConstantString: String = "Ala ma kota!"

var concatenateString = myString + " " + String(myInteger)
var concatenateString2 = "\(myString) \(myInteger)"

var array = [1,2,3,4,5,6,7]
var dictionary = ["gwe":"one", "rty":"two", "uio":"three"]

var lottoResults = ["29-11-14":[4, 5, 21, 30, 31, 49], "27-11-14": [5, 8, 10, 19, 23, 40]]

var emptyDictionary = [Character: Int]()
let letters = ["A","B","C","D","E","F","G","H","I","J"]
var j = 1
for i in letters{
    emptyDictionary[Character(i)] = j
    j += 1
}
print(emptyDictionary)

for i in lottoResults{
    print(i.key)
    for j in i.value{
        print("- \(j)")
    }
}

func nwd(a: Int, b: Int) -> Int{
    if(b == 0){
        return a
    } else {
        return nwd(a: b, b: (a - b * Int(floor(Double(a)/Double(b)))))
    }

}

print (nwd(a: 30, b: 45))

func nwd2(a: Int, b: Int) -> (Int,Int,Int){
    var result = 0
    if(b == 0){
        result = a
    } else {
        result = nwd2(a: b, b: (a - b * Int(floor(Double(a)/Double(b)))))
    }
    return(result, a/result, b/result)

}

print (nwd2(a:30,b:45))