import UIKit

//String = "asdnad  23bkj4b234 asdasd askdaksmd 123*7324234"
//Double, Float = 0.1231231233123213123123123123123123
//Int = 213123123
//Bool = true false
//
//Double, Float, Bool, Int
//
//var name: String = "Moscow"
//var name = "Moscow"
//
//var number: Double = 0.12
//
//
//var intNumber = 123
//
//var boolObject = false

//var name: Double?
//var name: Double? = nil
//name = 0.123123
//name = 123123


// var name: Double? = nil

//var name: Double?
//name = nil
//
//if let value = name {
//    print(value)
//}
//
//var name: String?

// && - и
// || - или

let age = 21
let country = "фывдлываи 23лциокж 23"

if (age >= 18) && (country == "Russia") {
    print("Совершеннолетний в России")
} else if (age >= 21) && (country == "USA") {
    print("Совершеннолетний в Америке")
} else {
    print("Непонятно")
}

let eatName = "Помидор"
var isVegetable = false
var isFruit = false

if (eatName == "Помидор") || (eatName == "Огурец") {
    isVegetable = true
} else if (eatName == "Мандарин") || (eatName == "Апельсин") {
    isFruit = true
}

if (isFruit == true) || (isVegetable == true) {
    print("Это еда")
} else {
    print("Это не еда")
}