Data commit

Task/Quickselect-algorithm/Ring/quickselect-algorithm.ring

@@ -0,0 +1,20 @@
+aList = [9, 8, 7, 6, 5, 0, 1, 2, 3, 4]
+see partition(aList, 9, 4, 2) + nl
+
+func partition list, left, right, pivotIndex
+       pivotValue = list[pivotIndex]
+       temp = list[pivotIndex]
+       list[pivotIndex] = list[right]
+       list[right]  = temp
+       storeIndex = left
+       for i = left to right-1
+            if list[i] < pivotValue
+               temp = list[storeIndex]
+               list[storeIndex] = list[i]
+               list[i] = temp
+               storeIndex++ ok
+            temp = list[right]
+            list[right] = list[storeIndex]
+            list[storeIndex] = temp
+       next
+       return storeIndex