Initial data commit

Task/Sorting-algorithms-Cocktail-sort-with-shifting-bounds/Nim/sorting-algorithms-cocktail-sort-with-shifting-bounds.nim

@@ -0,0 +1,25 @@
+proc cocktailShakerSort[T](a: var openarray[T]) =
+
+  var beginIdx = 0
+  var endIdx = a.len - 2
+
+  while beginIdx <= endIdx:
+    var newBeginIdx = endIdx
+    var newEndIdx = beginIdx
+    for i in beginIdx..endIdx:
+      if a[i] > a[i + 1]:
+        swap a[i], a[i + 1]
+        newEndIdx = i
+
+    endIdx = newEndIdx - 1
+
+    for i in countdown(endIdx, beginIdx):
+      if a[i] > a[i + 1]:
+        swap a[i], a[i + 1]
+        newBeginIdx = i
+
+    beginIdx = newBeginIdx + 1
+
+var a = @[4, 65, 2, -31, 0, 99, 2, 83, 782]
+cocktailShakerSort a
+echo a