SandeepAggarwal

///copy the implementation of NSObject.init and exchange it with some new fake init we are going to create.
///https://nshint.io/blog/2019/04/08/testing-the-camera-on-the-simulator/
///https://pspdfkit.com/blog/2019/swizzling-in-swift/
private struct Swizzler {
  private let klass: AnyClass

  init(_ klass: AnyClass) {
      self.klass = klass
  }

SandeepAggarwal

import UIKit
import PlaygroundSupport

func findAllSubArrayWhoseCountMatches(targetValue: Int, in array: [Int]) -> [[Int]] {
  var sum = 0
  var hashMap = [Int: Int]()
  var results = [[Int]]()
  for index in 0..<array.count {
    sum = sum + array[index]
    if sum == target {

SandeepAggarwal

import UIKit
import PlaygroundSupport

func findSubArrayWhoseCountMatches(targetValue: Int, in array: [Int]) -> [Int] {
  var sum = 0
  var hashMap = [Int: Int]()
  
  for index in 0..<array.count {
    sum = sum + array[index]
    if sum == target {

SandeepAggarwal

import UIKit
import PlaygroundSupport

func findSubArrayWhoseCountMatches(targetValue: Int, in array: [Int]) -> [Int] {
  var sum = 0
  var startIndex = 0
  for index in 0..<array.count {
    sum = sum + array[index]

    while sum > target {

SandeepAggarwal

import UIKit
import PlaygroundSupport

class TreeNode {
  var data: Int
  var left: TreeNode?
  var right: TreeNode?
  
  init(data: Int) {
    self.data = data

SandeepAggarwal

import UIKit
import PlaygroundSupport

class TreeNode {
  var data: Int
  var left: TreeNode?
  var right: TreeNode?
  
  init(data: Int) {
    self.data = data

SandeepAggarwal

import UIKit
import PlaygroundSupport

class TreeNode {
  var data: Int
  var left: TreeNode?
  var right: TreeNode?
  
  init(data: Int) {
    self.data = data

SandeepAggarwal

import UIKit
import PlaygroundSupport

class Node {
  var data: Int
  var next: Node?
  
  init(data: Int) {
    self.data = data
  }

SandeepAggarwal

import UIKit
import PlaygroundSupport

class Node {
  var data: Int
  var next: Node?
  
  init(data: Int) {
    self.data = data
  }

SandeepAggarwal

import UIKit
import PlaygroundSupport

class Cell: UITableViewCell {
  override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
    super.init(style: style, reuseIdentifier: reuseIdentifier)
  }
  
  required init?(coder: NSCoder) {
    fatalError("init(coder:) has not been implemented")