Solves FilterArray and FilterArrayPositions

* Starts working on ArrayOfNElements

src/main/scala/functionalProgramming/ArrayOfNElements.scala

@@ -0,0 +1,9 @@
+package functionalProgramming
+
+/**
+  * Created by jleng on 4/19/2017.
+  * https://www.hackerrank.com/challenges/fp-array-of-n-elements
+  */
+class ArrayOfNElements {
+
+}

src/main/scala/functionalProgramming/FilterArray.scala

@@ -0,0 +1,9 @@
+package functionalProgramming
+
+/**
+  * Created by jleng on 4/19/2017.
+  * https://www.hackerrank.com/challenges/fp-filter-array
+  */
+class FilterArray {
+  def f(delim:Int,arr:List[Int]):List[Int] = arr.filter( _ < delim)
+}

src/main/scala/functionalProgramming/FilterArrayPositions.scala

@@ -0,0 +1,10 @@
+package functionalProgramming
+
+/**
+  * Created by jleng on 4/19/2017.
+  * https://www.hackerrank.com/challenges/fp-filter-positions-in-a-list
+  */
+class FilterArrayPositions {
+  def f(arr:List[Int]):List[Int] = for( (x, i) <- arr.zipWithIndex if i % 2 != 0) yield x
+
+}