Carleslc

function randPW(length, strong)
    local index, pw, rnd = 0, ""
    local chars = {
        "ABCDEFGHIJKLMNPQRSTUVWXYZ", -- O
        "abcdefghijklmnopqrstuvwxyz",
        "123456789" -- 0
    }
    if strong then
        table.insert(chars, "!\\#$%&()*+,-./:;<=>?@[]^_{|}~") -- '"
    end

Carleslc

/** If high-performance is needed consider using Guava BigIntegerMath.factorial instead **/
fun Long.factorial(): BigInteger {
    fun factorial(start: Long, n: Long): BigInteger {
        var i: Long
        if (n <= 16) {
            var r = BigInteger.valueOf(start)
            i = start + 1
            while (i < start + n) {
                r = r.multiply(BigInteger.valueOf(i))
                i++