CSHARP

C# get digits from int

// Recursive Solution:
public Stack<int> NumbersIn(int value)
{
    if (value == 0) return new Stack<int>();

    var numbers = NumbersIn(value / 10);

    numbers.Push(value % 10);

    return numbers;
}

var numbers = NumbersIn(987654321).ToArray();

// Without Recursion:
public int[] NumbersIn(int value)
{
    var numbers = new Stack<int>();

    for(; value > 0; value /= 10)
        numbers.Push(value % 10);

    return numbers.ToArray();
}

c# get digits from int

// without LINQ (see linked source for more solutions with or w/o LINQ
public static IEnumerable<int> GetDigits(int source)
{
    int individualFactor = 0;
    int tennerFactor = Convert.ToInt32(Math.Pow(10, source.ToString().Length));
    do
    {
        source -= tennerFactor * individualFactor;
        tennerFactor /= 10;
        individualFactor = source / tennerFactor;

        yield return individualFactor;
    } while (tennerFactor > 1);
}