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Preparação para a 3ª fase da ONIA - Fundamentos do Python

1) Manipulação de Listas e Compreensão de Listas**

Qual das seguintes opções gera corretamente uma lista contendo os quadrados dos números pares de 0 a 10?

a)

lista = [x ** 2 for x in range(11) if x % 2 == 0]

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Questão: Predição de Preços de Casas com Scikit-learn

Um cientista de dados deseja criar um modelo de regressão linear para prever o preço de uma casa com base em seu tamanho (em metros quadrados). Ele coletou os seguintes dados:

Tamanho (m²)	Preço (mil reais)
50	200
80	320
100	400
150	600

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Examples for how to create your own info panel, warning box and other decent looking notification in GitHub markdown.

All the boxes are single/two cell tables or two row tables.

Warning box

❗ You have to read about this

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import Foundation

extension Data {
    var prettyPrintedJSONString: NSString? { /// NSString gives us a nice sanitized debugDescription
        guard let object = try? JSONSerialization.jsonObject(with: self, options: []),
              let data = try? JSONSerialization.data(withJSONObject: object, options: [.prettyPrinted]),
              let prettyPrintedString = NSString(data: data, encoding: String.Encoding.utf8.rawValue) else { return nil }

        return prettyPrintedString
    }

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class DiskStatus {
    
    // MARK: Get String Value
    class var totalDiskSpace: String {
        get {
            return ByteCountFormatter.string(fromByteCount: totalDiskSpaceInBytes, countStyle: ByteCountFormatter.CountStyle.file)
        }
    }
    
    class var freeDiskSpace: String {

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/// If an error occurs while getting the amount of memory used, the first returned value in the tuple will be 0.

func getMemoryUsedAndDeviceTotalInMegabytes() -> (Float, Float) {
        
    // https://stackoverflow.com/questions/5887248/ios-app-maximum-memory-budget/19692719#19692719
    // https://stackoverflow.com/questions/27556807/swift-pointer-problems-with-mach-task-basic-info/27559770#27559770
    
    var used_megabytes: Float = 0
    
    let total_bytes = Float(ProcessInfo.processInfo.physicalMemory)

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//
//  ExtensionURLRequest.swift
//
//  Created by Abhishek Maurya on 16/07/20.
//  Copyright © 2020. All rights reserved.
//

import Foundation

extension URLRequest {

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class ViewController: UIViewController {
    
    private(set) var tap: UITapGestureRecognizer
    
    init(tap: UITapGestureRecognizer) {
        self.tap = tap
        super.init(nibName: nil, bundle: nil)
    }
    
    required init?(coder: NSCoder) {

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class MyObject: NSObject {
    @objc dynamic func getName(_ name: String) -> String {
        return name
    }
}

class FakeMyObject: NSObject {
    @objc dynamic func getName(_ name: String) -> String {
        return name + " concat"
    }

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import Foundation

protocol AsyncDispatcher {
    func async(
        group: DispatchGroup?,
        qos: DispatchQoS,
        flags: DispatchWorkItemFlags,
        execute work: @escaping @convention(block) () -> Void
    )
    func async(execute work: @escaping @convention(block) () -> Void)