twof

import UIKit

class ViewController: UIViewController {
    let movableView: UIView = {
        let view = UIView(frame: .zero)
        view.translatesAutoresizingMaskIntoConstraints = false
        view.accessibilityIdentifier = "MovableView"
        view.backgroundColor = .red
        return view
    }()

twof

func crud<ParentType>(
    at path: PathComponentsRepresentable...,
    parent relation: KeyPath<ChildType, Parent<ChildType, ParentType>>,
    _ either: OnlyExceptEither<ParentRouterMethod>,
    relationConfiguration: ((CrudParentController<ChildType, ParentType>) -> Void)?
) where
    ParentType: Model & Content,
    ChildType.Database == ParentType.Database,
    ParentType.ID: Parameter

twof

 -> Core
  Core (3.4.4) - Analyzing on iOS 10.0 platform.
  Preparing

Analyzing dependencies

Inspecting targets to integrate
  Using `ARCHS` setting to build architectures of target `Pods-App`: (``)

twof

 -> Core
  Core (3.4.4) - Analyzing on iOS 10.0 platform.
  Preparing

Analyzing dependencies

Inspecting targets to integrate
  Using `ARCHS` setting to build architectures of target `Pods-App`: (``)

twof

 -> Core
  Core (3.4.4) - Analyzing on iOS 10.0 platform.
  Preparing

Analyzing dependencies

Inspecting targets to integrate
  Using `ARCHS` setting to build architectures of target `Pods-App`: (``)

twof

import UIKit

class PagedViewController: UIViewController {

    // MARK: - Properties
    private static let defaultPageControlConstraints: (PagedViewController) -> ([NSLayoutConstraint])
        = { (pagedViewController: PagedViewController) in
            return [
                pagedViewController.pageControl.bottomAnchor.constraint(
                    equalTo: pagedViewController.scrollView.bottomAnchor,

twof

$ git clone https://github.com/twof/VaporMailgunService
Cloning into 'VaporMailgunService'...
remote: Enumerating objects: 19, done.
remote: Counting objects: 100% (19/19), done.
remote: Compressing objects: 100% (15/15), done.
remote: Total 244 (delta 4), reused 13 (delta 2), pack-reused 225
Receiving objects: 100% (244/244), 47.44 KiB | 0 bytes/s, done.
Resolving deltas: 100% (85/85), done.
$ cd VaporMailgunService/
$ vapor build

twof

// This first solution is the ideal one to come up with if the interviewer said they were looking for a demonstration of
// OOP design concepts. It's not generic right now, but I'll try and update it later to fix that. This is working Swift code,
// so feel free to paste it into a playground if you'd like to play with it

import Foundation

protocol Node {
    func evaluate() -> Int
}

twof

import Foundation

func iterateEnum<T: Hashable>(_: T.Type) -> AnyIterator<T> {
    var i = 0
    return AnyIterator {
        let next = withUnsafeBytes(of: &i) { $0.load(as: T.self) }
        if next.hashValue != i { return nil }
        i += 1
        return next
    }

twof

class Node<T>{
    var content: T
    var next: Node?
    
    init(content: T, next: Node?){
        self.content = content
        self.next = next
    }
}