t0rn

extension UITableView {
    func updateTableHeaderView(with view: UIView?) {
        guard
            let view = view
        else {
            tableHeaderView = nil
            return
        }
        let containerView = UIView()
        containerView.translatesAutoresizingMaskIntoConstraints = false

t0rn

extension Collection where Element: Collection {
    func transposed() -> [[Element.Element]]? {
        guard let maxCount = self.map({$0.count}).max() else {return nil}
        var result = [[Element.Element?]](repeating: [Element.Element?](repeating: nil, count: self.count), count: maxCount)
        for (r,row) in self.enumerated() {
            for (c,v) in row.enumerated() {
                result[c][r] = v
            }
        }
        return result

t0rn

import Foundation


protocol DelegateProtocol: class {
    
}

 protocol Delegatable {
    associatedtype DelegateType: DelegateProtocol
    var delegate: DelegateType? { get set }

t0rn

import Foundation

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

t0rn

import Foundation
/// A list is either empty or it is composed of a first element (head)
/// and a tail, which is a list itself.
///
/// See http://www.enekoalonso.com/projects/99-swift-problems/#linked-lists
class List<T> {
    var value: T
    var nextItem: List<T>?
    

t0rn

let xs = [3,5,1,4,6,3,9,11,1,0,3]
let ys = ["t","e","a","z","o","v","p"]

extension Array where Element: Comparable {
    func selectionSort() -> [Element] {
        guard self.count > 1 else {return self}
        var result = self
        
        for index in (0..<count - 1) {
            var indexLowest = index

t0rn

extension Array where Element == Int {
    var equilibriumIndexes:  [Element]? {
        var idxs = [Element]()
        var sum = reduce(0,+)
        var leftSum = 0
        let count = self.count
        for i in 0..<count {
            sum = sum - self[i]
            if leftSum == sum {
                idxs.append(i)

t0rn

protocol StackProtocol {
    associatedtype ElementType
    
    var isEmpty: Bool { get }
    
    mutating func pop() -> ElementType?
    mutating func push(_ value: ElementType)
}

t0rn

# Name of the resource we're selectively copying
GOOGLESERVICE_INFO_PLIST=GoogleService-Info.plist

# Get references to dev and prod versions of the GoogleService-Info.plist
# NOTE: These should only live on the file system and should NOT be part of the target (since we'll be adding them to the target manually)
GOOGLESERVICE_INFO_DEV=${PROJECT_DIR}/${TARGET_NAME}/Firebase/Dev/${GOOGLESERVICE_INFO_PLIST}
GOOGLESERVICE_INFO_PROD=${PROJECT_DIR}/${TARGET_NAME}/Firebase/Prod/${GOOGLESERVICE_INFO_PLIST}

# Make sure the dev version of GoogleService-Info.plist exists
echo "Looking for ${GOOGLESERVICE_INFO_PLIST} in ${GOOGLESERVICE_INFO_DEV}"