Question

How to check if a number is cyclops (number with odd number of digits and zero in the center) in C#

Answer 1

// A number with an odd number of digits and zero in the center is Cyclops number

using System;

public class Program
{
	private static bool isCyclopsNumber(int n) {
		 if (n == 0) {
            return true;
        }
     
        int m = n % 10;
        int count = 0;
        while (m != 0) {
            count++;
            n /= 10;
            m = n % 10;
        }
     
        n /= 10;
        m = n % 10;
        while (m != 0) {
            count--;
            n /= 10;
            m = n % 10;
        }
     
        return n == 0 && count == 0;
	}
	public static void Main(string[] args)
	{
		Console.WriteLine((isCyclopsNumber(209) ? "yes" : "no"));
		Console.WriteLine((isCyclopsNumber(18037) ? "yes" : "no"));
		Console.WriteLine((isCyclopsNumber(5604) ? "yes" : "no"));
	}
}






/*
run:
  
yes
yes
no
  
*/

 

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