MeetAndParty.scala

import java.io.FileInputStream

/**
 * Created by bongster on 2014. 8. 22..
 */
object Main extends App{

  def getM(point : List[Int]): List[Int] ={
   // println(point)

    List((point(2) + point(0)) / 2, (point(3) + point(1)) / 2)
  }

  System.setIn(new FileInputStream("sample.in"))
  var cases = readLine().toInt;
  while(cases > 0){
    val pointNum = readLine().toInt;
    var list:List[List[Int]] = Nil;
    (0 until pointNum) foreach {n =>
      val point = readLine().split(" ").toList.map(_.toInt)
      list = list :+ point
    }

    val ml = list.map(getM(_))
    //println(ml)
    val ml2 =   ml.reduce((a, b) => {

      println("a : " + a)
      println("b : " + b)

      List(a(0) + b(0) , a(1) + b(1))
    })
    println(ml2)
    cases = cases - 1;
  }
}