package com.thealgorithms.maths;

/*
 * Algorithm explanation: https://technotip.com/6774/c-program-to-find-generic-root-of-a-number/#:~:text=Generic%20Root%3A%20of%20a%20number,get%20a%20single%2Ddigit%20output.&text=For%20Example%3A%20If%20user%20input,%2B%204%20%2B%205%20%3D%2015.
 */
public class GenericRoot {

    public static void main(String[] args) {
        int number1 = 1234;
        int number2 = 12345;
        int result1 = genericRoot(number1);
        int result2 = genericRoot(number2);
        System.out.println("Generic root of " + number1 + " is: " + result1);
        System.out.println("Generic root of " + number2 + " is: " + result2);
    }

    private static int genericRoot(int n) {
        int root = 0;
        while (n > 0 || root > 9) {
            if (n == 0) {
                n = root;
                root = 0;
            }
            root += n % 10;
            n /= 10;
        }
        return root;
    }
}