prac 5 ex 3

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ConsoleApplication4
{
    class Program
    {
        static int QuanOfNum(int a, ref int q)
        {
            if (a > 0)
            {
                a /= 10;
                q++;
                return QuanOfNum(a, ref q);
            }
            else
                return q;
        }

        static void Main(string[] args)
        {
            int q = 0;
            Console.WriteLine("Введите a: ");
            int a = int.Parse(Console.ReadLine());
            Console.WriteLine("Количество чисел {0} — {1}", a, QuanOfNum(a, ref q));
            Console.ReadKey();
        }
    }
}