Mariański Lab6/Zad2

def ldzialanie(s1:Stream[Int],s2:Stream[Int],operator:Char):Stream[Int] = {
  if(s1 == Nil) s2
  else if(s2 == Nil) s1
  else{
    val h1#::t1 = s1
    val h2#::t2 = s2
    operator match{
      case '+' => (h1+h2)#::ldzialanie(t1,t2,'+')
      case '-' => (h1-h2)#::ldzialanie(t1,t2,'-')
      case '*' => (h1*h2)#::ldzialanie(t1,t2,'*')
      case '/' => (h1/h2)#::ldzialanie(t1,t2,'/')
    }
  }
}