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object O extends App{def f(i:Int):Int=if(i>0)i%2+f(i/2)else 0 def main(a:Array[String])=printprint(f(aargs(0).toInt))}
Usage: scala O 56432
scala O 56432
object O{def f(i:Int):Int=if(i>0)i%2+f(i/2)else 0 def main(a:Array[String])=print(f(a(0).toInt))}
object O extends App{def f(i:Int):Int=if(i>0)i%2+f(i/2)else 0 print(f(args(0).toInt))}
