Question

How to write an algorithm that adds the odd digits of one number to the end of a second number in C#

Answer 1

using System;

public class AddsOddDigitsIfNumberToOtherNumber_CSharp {
    public static void Main(string[] args) {
        int n = 12734, second_n = 100;
         
        Console.WriteLine(AddOddDigits(n, second_n));
    }
 
    public static int AddOddDigits(int n, int second_n) {
        int multiply = 1, odd = 0;
 
        while (n != 0) {
            if (n % 2 != 0) {
                odd += (n % 10) * multiply;
                multiply *= 10;
            }
 
            n = n / 10;
        }
 
        return second_n * multiply + odd;
    }
}



/*
run:

100173

*/

 

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