tkausch

import Foundation


public struct Queue<T> {

    private var array: Array<T?>

    private var availableSpaceCount: Int
    
    private var readIndex: Int

tkausch

 func maxProduct(_ nums: [Int]) -> Int {
    
    guard nums.count > 0 else {
        return 0
    }
    
    var maximum = nums.first!
    var maxPositivEnding = nums.first!
    var minNegativeEnding = nums.first!
    

tkausch

func maxProduct(_ nums: [Int]) -> Int {
    
    guard nums.count > 0 else {
        return 0
    }
    
    guard let first = nums.first, first != 0 else {
        return max(0,maxProduct(Array(nums.dropFirst())))
    }
    

tkausch

func maxSubArray(_ nums: [Int]) -> Int {
    guard nums.count > 0 else {
        return Int.min
    }
    var bestEndingSum = nums.first!
    var maxSum = nums.first!
    
    for num in nums[1..<nums.endIndex] {
        bestEndingSum = max(bestEndingSum + num, num)
        

tkausch

let str = "  Taylor Swift is £!?"
let trimmed = str.trimmingCharacters(in: .whitespacesAndNewlines)

tkausch

if let range3 = string.range(of: "rain", options: .caseInsensitive) {
    // match
} else {
    // no match
}

tkausch

let str = "Hello, world!"
let reversed = String(str.reversed())
print(reversed)

tkausch

extension String {
    func deletingPrefix(_ prefix: String) -> String {
        guard self.hasPrefix(prefix) else { return self }
        return String(self.dropFirst(prefix.count))
    }
}

tkausch

extension String {
    subscript(i: Int) -> String {
        return String(self[index(startIndex, offsetBy: i)])
    }
}

tkausch

if let filepath = Bundle.main.path(forResource: "example", ofType: "txt") {
    do {
        let contents = try String(contentsOfFile: filepath)
        print(contents)
    } catch {
        // contents could not be loaded
    }
} else {
    // example.txt not found!
}