Two functions wich generate dice combinations for diceware list

diceware_gen.swift

/*
    Two functions wich generate dice combinations for diceware list, the firstone is oriented to be compact and the seconds oriented to be efficient
    - results: withMaxInt: 6 and andMinLenght: 5 (Imac 2013, i5, swift 5.3.2)
      Efficient done in -> 62.49544095993042 seconds
      Compact done in -> 76.10342800617218 seconds

    - results: withMaxInt: 6 and andMinLenght: 5 (Macbook air 2020, M1, swift 5.4)
      Efficient done in -> 0.06685197353363037 seconds
      Compact done in -> 0.23580491542816162 seconds

    - results: withMaxInt: 6 and andMinLenght: 5 (Ipad pro 2018, A12X, swift playground)
      Efficient done in -> 0.10886907577514648 seconds
      Compact done in -> 0.39872801303863525 seconds

*/

import Foundation

func dice(withMaxInt: Int, andMinLenght: Int) -> [Int] {
    var base: Int = Int(String((1...andMinLenght).map {_ in "1"}))!
    var re: [Int] = [base]
    while base != Int(String((1...andMinLenght).map {_ in Character(String(withMaxInt))}))!{
        base += 1
        if !(((withMaxInt + 1)...9).map({String($0)}).map{ String(base).contains(String($0)) }.contains(true)) {
            re.append(base)
        }
    }
    return re
}

func diceTwo(withMaxInt: Int, andMinLenght: Int) -> [Int] {
    var base: Int = Int(String((1...andMinLenght).map {_ in "1"}))!
    let end: Int = Int(String((1...andMinLenght).map {_ in Character(String(withMaxInt))}))!
    var re: [Int] = [base]
    let toEx: [String] = ((withMaxInt + 1)...9).map({String($0)})
    while base != end {
        base += 1
        if !(toEx.map{ String(base).contains(String($0)) }.contains(true)) {
            re.append(base)
        }
    }
    return re
}

var startTime = Date().timeIntervalSinceReferenceDate
let dec = dice(withMaxInt: 6, andMinLenght: 5)
var endTime = Date().timeIntervalSinceReferenceDate
print("Done -> \(endTime - startTime) seconds")

startTime = Date().timeIntervalSinceReferenceDate
let dec2 = diceTwo(withMaxInt: 6, andMinLenght: 5)
endTime = Date().timeIntervalSinceReferenceDate
print("Done -> \(endTime - startTime) seconds")