test.scala

def verifyItems(origitems: Array[String], origprices: Array[Float], items: Array[String], prices: Array[Float]): Int = {
  val originalPairs = origitems.zip(origprices)
  val checkPairs = items.zip(prices)

  val results = for {
    o <- originalPairs
    c <- checkPairs
    if o == c
  } yield c

  results.distinct.length
}