Project Euler. Problem 22

Euler0022.scala

package euler.zerosum

import io.Source

object Euler0022 {

  def main(args: Array[String]) {
    val f = Source.fromFile("names.txt") // via. http://projecteuler.net/project/names.txt
    println(namesScore(f.mkString.split(',').toList.map(_.filterNot(_ == '"')).sortWith(_<_)))
    f.close()
  }

  private def namesScore(names: List[String]): Long = {
    names.zipWithIndex.map(x => nameValue(x._1.toList) * (x._2 + 1)).sum
  }

  private def nameValue(name: List[Char]): Long = {
    name.map(_.toUpper.hashCode() - 64L).sum
  }
}