firephil

/**
 * Solves the n-Queen puzzle in O(n!)
 * Let p[r] be the column of the queen on the rth row (must be exactly 1 queen per row)
 * There also must be exactly 1 queen per column and hence p must be a permuation of (0 until n)
 * There must be n distinct (col + diag) and n distinct (col - diag) for each queen (else bishop attacks)
 * @return Vector p of length n such that p[i] is the column of the queen on the ith row in a solution
 */
def nQueens(n: Int) = 
  (0 until n)
     .permutations

firephil

// Solves the n-queens problem for an arbitrary board size
// Run for a board size of ten: scala nqueen.scala 10
object Nqueen {
  type Queen = (Int, Int)
  type Solutions = List[List[Queen]]

  def main(args: Array[String]) {
    val size: Int = args match {
      case Array() => sys.error("Provide a board size")
      case Array(n) => n.toInt

firephil

import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.geometry.Side;
import javafx.scene.control.ContextMenu;
import javafx.scene.control.CustomMenuItem;
import javafx.scene.control.Label;
import javafx.scene.control.TextField;

firephil

import javafx.application.*;
import javafx.geometry.Pos;
import javafx.scene.*;
import javafx.scene.control.Label;
import javafx.scene.layout.*;
import javafx.scene.paint.Color;
import javafx.stage.*;

import javax.imageio.ImageIO;
import java.io.IOException;

firephil

## Configure eth0
#
# vi /etc/sysconfig/network-scripts/ifcfg-eth0

DEVICE="eth0"
NM_CONTROLLED="yes"
ONBOOT=yes
HWADDR=A4:BA:DB:37:F1:04
TYPE=Ethernet
BOOTPROTO=static

firephil

package portScan

object Run extends App {
  
	
	  (21 to 22).par.map { case port =>
	    try {
    	      val socket = new java.net.Socket("192.168.1.1", port)
    	      socket.close()
    	      println(port)