June 2018 Update

Task/Knuths-algorithm-S/Scala/knuths-algorithm-s.scala

@@ -0,0 +1,21 @@
+import java.util
+import scala.util.Random
+
+object KnuthsAlgorithmS extends App {
+
+  import scala.collection.JavaConverters._
+
+  val (n, rand, bin) = (3, Random, new Array[Int](10))
+
+  for (_ <- 0 until 100000) {
+    val sample = new util.ArrayList[Int](n)
+    for (item <- 0 until 10) {
+      if (item < n) sample.add(item)
+      else if (rand.nextInt(item + 1) < n)
+        sample.asScala(rand.nextInt(n)) = item
+    }
+    for (s <- sample.asScala.toList) bin(s) += 1
+  }
+
+  println(bin.mkString("[", ", ", "]"))
+}