rainfall

package o1
import scala.math._
package object rainfall {

  // What goes here is described in Chapter 6.4.
  def averageRainfall( wek: Vector[Int] ) = {
    var pom = wek.takeWhile( _ < 999999)
    pom = pom.filter(_ >=0)
    var suma = pom.sum
    if(pom.length>0){
      var wyn = suma/pom.length
      Some(wyn)
    }
    else None
  }

  def drySpell(  wek: Vector[Int] , length: Int ) = {
    var pom1 = wek.sliding(length).toVector
    var result = 10000000
    for ( i <- 0 to pom1.length-1)
    {
      if( pom1(i).exists( _<0) == false && pom1(i).exists(_ > 5)==false && pom1.exists( _ == 999999)==false) result = min(result, i)
    }
    if(result == 10000000) result= -1
    result
  }



}