Add array shuffling

[TonyTroeff]

Describe your idea
I have an array of values. I want to shuffle them so the ordering is changed randomly.

[Meysamanhari]

it's my simple idea

public void arrayShuffling()
{
    List<int> numbers = [1, 2, 3,4,5,6,7,8,9,10,13,15,18];
    int numbersCount=numbers.Count;
    for (int i=0; i<numbersCount; i++)
    {
        int randomIndex=SelectRandomNumber(0, numbers.Count);
        Console.WriteLine(numbers[randomIndex]);
        numbers.Remove(numbers[randomIndex]);
    }

}

public int SelectRandomNumber(int fromNumber , int toNumber)
{
    Random r = new();
    return r.Next(fromNumber, toNumber);
}

[TonyTroeff]

This solution is not optimal as the numbers.Remove(..) call has linear complexity - that makes the overall complexity O(n^2).
This is a good starting point: https://en.wikipedia.org/wiki/Fisher%E2%80%93Yates_shuffle

Also - the RandomizationHelper class should be used for generating the random index.