ASRagab’s gists

ASRagab / nQueens.scala

Created July 29, 2018 19:07

Brute Force nQueens

	object nQueens extends App {
	type Solution = IndexedSeq[Int]

	def createSolutions(n: Int): Seq[Solution] = {
	(0 until n).permutations.toSeq
	}

	def verifySolution(s: Solution): Boolean = {
	s.indices.combinations(2).forall(x => Math.abs(x(0) - x(1)) != Math.abs(s(x(0)) - s(x(1))))
	}

ASRagab / fitbit.csv

Created April 10, 2018 04:22

Date	CaloriesBurned	Steps	Distance(km)	Stairs	MinutesAtRest	MinutesOfLightActivity	MinutesOfModerateActivity	MinutesOfIntenseActivity	CaloriesBurnedWhileActive	MinutesOfSleep	MinutesOfBeingAwake	NumberOfAwakenings	LengthOfRestInMinutes
04/28/2016	4030	25571	19.3	15	606	293	42	129	2711	348	20	9	368
04/29/2016	3442	17528	13.36	15	594	239	8	82	1931	454	48	27	502
04/30/2016	3061	9831	7.3	1	561	414	0	0	1651	347	41	20	388
05/01/2016	3331	14262	10.6	5	666	361	21	41	1937	314	34	23	348
05/02/2016	2989	13236	9.98	12	770	234	8	38	1477	377	33	18	410
05/03/2016	3796	18588	14.13	16	599	275	49	79	2360	406	21	8	427
05/04/2016	3525	16382	12.39	16	684	333	10	55	2075	280	35	15	315
05/05/2016	3649	21913	16.4	19	701	287	29	90	2249	370	42	22	412
05/06/2016	3539	19023	14.79	15	575	298	8	85	2112	502	57	31	563

ASRagab / chart.svg

Last active April 7, 2018 20:38

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ASRagab / bankersQueue.sc

Created February 16, 2018 02:08

Banker's Queue Implementation

	object queuesBankers {
	import BankersQueue._

	case class BankersQueue[+A](sizeFront: Int, front: Stream[A], sizeRear: Int, rear: Stream[A]) {
	def enqueue[B >: A](b: B) =
	check(BankersQueue(sizeFront,front, sizeRear + 1, b #:: rear))

	def dequeue = front match {
	case h #:: t => {
	val remaining = BankersQueue(sizeFront - 1, t, sizeRear, rear)

ASRagab / scastie.scala

Last active October 24, 2017 23:48

Scala Koans?

	def last[T](ls: List[T]): T = {
	ls match {
	case Nil => throw new Exception("No last element of empty list")
	case h :: Nil => h
	case _ :: tail => last(tail)
	}
	}

	val test = List(2, 4, 7, 3, 100)
	last(test)

ASRagab / build.sbt

Created April 30, 2017 04:48

Spark 2.1.0 and 2.11.11 build.sbt to allow sbt-assembly to merge properly and to be able to 'sbt run'

	name := "spark-mllib-test"

	version := "1.0"

	scalaVersion := "2.11.11"

	val sparkVersion = "2.1.0"

	libraryDependencies ++= Seq (
	"org.apache.spark" %% "spark-core" % sparkVersion % "provided",

ASRagab / GoldenPond.scala

Created March 6, 2017 02:21

	case class Duck(x: Int, y: Int, direction: String)
	case class Pond(x: Int, y: Int)

	object GoldenPond extends App {

	def getInput: (Pond, Seq[(Duck, List[String])]) = {
	val scanner = new java.util.Scanner(System.in)
	val pond = scanner.nextLine.split(" ").toList.map(_.toInt).take(2) match {
	case Nil => throw new Exception("Not enough coordinates for pond")
	case List(a, b) => Pond(a, b)

ASRagab / build.sbt

Last active November 20, 2016 06:17

Correct Dependencies for Scala + Processing 3 including Native Libs (allows OpenGL device to be found for P2D and P3D rendering modes)

	name := "GeneticAlgorithm"

	version := "1.0"

	scalaVersion := "2.11.8"

	val processingVersion = "3.2.3"
	val joglVersion = "2.3.2"
	val processingVideoVersion = "3.0.2"

ASRagab / build.sbt

Last active August 9, 2016 05:58

DeepLearning4J

	lazy val nd4jVersion = SettingKey[String]("nd4jVersion")

	lazy val root = (project in file(".")).settings(
	scalaVersion := "2.11.8",
	name := "nd4sTest",
	version := "0.5.0",
	organization := "org.nd4j",
	resolvers += "Local Maven Repository" at "file:///" + Path.userHome.absolutePath + "/.m2/repository",
	nd4jVersion := "0.5.0",
	libraryDependencies ++= Seq(

ASRagab / gist:41cef05387e2a1c5f7373ef02615bc7a

Created August 8, 2016 05:53

Stack Trace

	[error] Exception in thread "main" java.lang.ExceptionInInitializerError
	[error] at org.nd4j.nativeblas.NativeOpsHolder.<init>(NativeOpsHolder.java:14)
	[error] at org.nd4j.nativeblas.NativeOpsHolder.<clinit>(NativeOpsHolder.java:9)
	[error] at org.nd4j.linalg.jcublas.ops.executioner.JCudaExecutioner.<clinit>(JCudaExecutioner.java:65)
	[error] at java.lang.Class.forName0(Native Method)
	[error] at java.lang.Class.forName(Class.java:264)
	[error] at org.nd4j.linalg.factory.Nd4j.initWithBackend(Nd4j.java:5202)
	[error] at org.nd4j.linalg.factory.Nd4j.initContext(Nd4j.java:5149)
	[error] at org.nd4j.linalg.factory.Nd4j.<clinit>(Nd4j.java:169)
	[error] at Main$.delayedEndpoint$Main$1(Main.scala:13)

Ahmad Ragab ASRagab