stepenice(X) :- X = [A,B,C,D,E,F,G,H,I],
    X :: 1..9,
    alldifferent(X),
    A + B + C #= 15,
    D + E + F #= 15,
    G + H + I #= 15,
    A + D + G #= 15,
    B + E + H #= 15,
    C + F + I #= 15,
    labeling(X),
    ispisi(X), !.




ispisi([A,B,C,D,E,F,G,H,I]) :-
	nl,
	write(A),write(' '),write(B),write(' '),write(C), nl, write('  '),
	write(D),write(' '),write(E),write(' '),write(F), nl, write('   '),
	write(G),write(' '),write(H),write(' '),write(I),
	nl,nl.

/*
# labeling moze da ima prvi argument maximize ili minimize
# fail umesto ! stampa sva resenja odjednom
stepenice(X) :- X = [A,B,C,D,E,F,G,H,I],
    X :: 1..9,
    alldifferent(X).
*/



============



clan(X, [X|_]).
clan(X, [G|R]) :- clan(X, R).

pored(X, Y, [X,Y|_]).
pored(X, Y, [Y,X|_]).
pored(X, Y, [_|R]) :- pored(X, Y, R).

desno(X, Y, [Y, X|_]).
desno(X, Y, [_|R]) :- desno(X,Y,R).

/* nacionalnost, boja, pice, jelo, zivotinja */

kuce(L) :- L = [d(norvezanin,_,_,_,_), d(,plava,,_,_), d(,,mleko,_,_), d(,,_,_,_), d(,,_,_,_)],
    clan(d(englez, crvena, _, _, _), L),
    clan(d(spanac, _, _, _, pas), L),
    clan(d(ukrajinac, _, caj, _, _), L),
    clan(d(_, _, _, spagete, puz), L),
    clan(d(_, _, narandza, brokoli, _), L),
    clan(d(japanac, _, _, susi, _), L),
    clan(d(_, _, _, _, zebra), L),
    clan(d(_, _, voda, _, _), L),
    desno(d(,zelena,kafa,,_), d(,bela,,_,_), L),
    pored(d(,,_,piletina,_), d(,,_,_,lisica), L),
    pored(d(,zuta,,pica,_), d(,,_,_,konj), L).

zagonetka(X,Y) :- kuce(L), clan(d(X, _, _, _, zebra), L), clan(d(Y, _, voda, _, _), L).




======



zposleni !!!
import org.apache.spark.rdd.RDD._
import org.apache.spark.{SparkConf, SparkContext}

object Main {
  def main(args: Array[String]): Unit =  {
    val konf = new SparkConf()
      .setAppName("Test")
      .setMaster("local[*]")

    val sk = new SparkContext(konf)

    val plate = sk.textFile("zaposleni.txt")
      .map(linija => {
        val niz = linija.split(" ")
        (niz(6), niz(7).toFloat)
      }).groupByKey()
      .map(el => {
        val suma = el._2.sum
        (el._1, suma / el._2.size)
      })

    println("plate:")
    plate.foreach(e => {
      println(e._1, e._2)
    })


    sk.stop()
  }

}


=======

<?xml version="1.0" encoding="UTF-8"?>

<?import javafx.scene.control.Button?>
<?import javafx.scene.layout.AnchorPane?>


<AnchorPane fx:controller="Gui2" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="400.0" prefWidth="600.0" xmlns="http://javafx.com/javafx/8.0.112" xmlns:fx="http://javafx.com/fxml/1">
   <children>
      <Button mnemonicParsing="false" text="Button"  fx:id="btn" onAction="#zurka" />
   </children>
</AnchorPane>


import java.net.URL
import java.util.ResourceBundle
import javafx.fxml.{FXML, Initializable}
import javafx.scene.control.Button

import javafx.event.ActionEvent

/**
  * Created by fr1sk on 6/15/18.
  */
class Gui2 extends Initializable{
  @FXML private var btn : Button = _

  @FXML
  def zurka(event: ActionEvent): Unit = {
    println("GG")

  }

  override def initialize(location: URL, resources: ResourceBundle): Unit = {}
}



import java.io.IOException
import javafx.fxml.FXMLLoader


import scalafx.Includes._
import scalafx.application.JFXApp.PrimaryStage
import scalafx.application.JFXApp

import javafx.scene.{Parent, Scene}

/**
  * Created by fr1sk on 6/15/18.
  */
object Main2 extends JFXApp {
  var resource = getClass.getResource("Gui2.fxml")
  if (resource == null) {
    throw new IOException("FAIL")
  }
  val root: Parent = FXMLLoader.load(resource)
  stage = new PrimaryStage {
    title = "Burger"
    scene = new Scene(root)
  }

}