Day 19: Interfaces (C#)

/* https://www.hackerrank.com/challenges/30-interfaces */

public class Calculator : AdvancedArithmetic
    {
    public int divisorSum(int x)
        {
        int sum = 0;
        for (int i = 1; i < x + 1; i++)
            {
            if (x%i == 0)
                sum+= i;
        }
        
        return sum;
    }
}