Le0nX

final class WeakReference<T: AnyObject> {
    weak var ref: T?

    init (_ object: T) {
        self.ref = object
    }
}

extension WeakReference: CurrencyPresenterOutput where T: CurrencyPresenterOutput {
    func present(_ currency: CurrencyPresenterModel) {

Le0nX

#include <iostream>

/*
  Вспомогательный метод. Проверяет содержит ли 
  число num в себе цифру k. Работает за O(n)
*/
bool contains(int num, int k) {
  if (k > 9) {
    return false;
  }

Le0nX

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {



    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
        // Override point for customization after application launch.
        
        ThemeManager.setup() // theme settings
        

Le0nX

import Foundation
import UIKit

//MARK: - RGB
/**
    - Descriptioin:
        RGB color settings
 */
extension UIColor {
    static func RGB (_ red: CGFloat, _ green: CGFloat, _ blue: CGFloat) -> UIColor {

Le0nX

import Foundation
import UIKit


class ThemeManager {
    // Some hack is needed in ios 13
    // to make navigationBar color grey in largeTittle mode
    static func setup() {
        if #available(iOS 13.0, *) {
            let navBarAppearance = UINavigationBarAppearance()

Le0nX

import Foundation
import UIKit


class HeadlinesVewController: UITableViewController {
    override func viewDidLoad() {
        super.viewDidLoad()
        
        setupUI()
    }