Question

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

Answer 1

object AddOddDigits {
  def addOddDigits(n: Int, second_n: Int): Int = {
    var multiply = 1
    var odd = 0
    var number = n

    while (number != 0) {
      if (number % 2 != 0) {
        odd += (number % 10) * multiply
        multiply *= 10
      }
      
      number = number / 10
    }

    second_n * multiply + odd
  }

  def main(args: Array[String]): Unit = {
    val n = 12734
    val second_n = 100
    
    println(addOddDigits(n, second_n))
  }
}



/*
run:
  
100173
  
*/

 

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