CSHARP

how to find how much digits in number c#

Math.Floor(Math.Log10(n) + 1);
//find how much digit in number
//decimal point will not be added

mfind how many digits a number has c#

static int digitCountOf(int number){
            return number.ToString().Length;
        }

how to count digits of number in c#

//recursion
//input: 123
//output: 3           :)
static int CountDigits(int num, int count)
        {
            if (num == 0)
            {
                return count;
            }

            return CountDigits(num / 10, ++count);
        }
static void Main(string[] args)
        {
            Console.WriteLine(CountDigits(123, 0));
         }