Initial data commit

Task/Sorting-Algorithms-Circle-Sort/Scala/sorting-algorithms-circle-sort.scala

@@ -0,0 +1,40 @@
+object CircleSort extends App {
+
+  def sort(arr: Array[Int]): Array[Int] = {
+    def circleSortR(arr: Array[Int], _lo: Int, _hi: Int, _numSwaps: Int): Int = {
+      var lo = _lo
+      var hi = _hi
+      var numSwaps = _numSwaps
+
+      def swap(arr: Array[Int], idx1: Int, idx2: Int): Unit = {
+        val tmp = arr(idx1)
+        arr(idx1) = arr(idx2)
+        arr(idx2) = tmp
+      }
+
+      if (lo == hi) return numSwaps
+      val (high, low) = (hi, lo)
+      val mid = (hi - lo) / 2
+      while ( lo < hi) {
+        if (arr(lo) > arr(hi)) {
+          swap(arr, lo, hi)
+          numSwaps += 1
+        }
+        lo += 1
+        hi -= 1
+      }
+      if (lo == hi && arr(lo) > arr(hi + 1)) {
+        swap(arr, lo, hi + 1)
+        numSwaps += 1
+      }
+
+      circleSortR(arr, low + mid + 1, high, circleSortR(arr, low, low + mid, numSwaps))
+    }
+
+    while (circleSortR(arr, 0, arr.length - 1, 0) != 0)()
+    arr
+  }
+
+  println(sort(Array[Int](2, 14, 4, 6, 8, 1, 3, 5, 7, 11, 0, 13, 12, -1)).mkString(", "))
+
+}