happyNumbers.scala

def happy(i: Long): Boolean = {
        def lilHappy(ii: Long, count: Long = 0): Boolean = {
           val num = ii.toString.map(_.asDigit).map(x => (x*x).toLong).sum
           if(num == 1) true
           else if( count == 30) false
           else lilHappy(num, count + 1)
        }
       lilHappy(i)
}

(1 to 100).foreach{ x => println(x + " " + happy(x)) }