QuickSort: Implementing The Partition Function

 

The goal for this exercise is to implement part of the QuickSort sorting algorithm – the partition function.

 

Based on your personal research on the QuickSort algorithm, as well as the in-class preview, you should implement the Partition function (which is part of the overall QuickSort sorting algorithm).

 

You should do this by implementing the Partition method on your SearchingAndSorting class.  This method takes three parameters:

1.    an array of  integers

2.    A lower boundary (the left-most boundary)

3.    An upper boundary (the right-most boundary)

 

This method should choose the first element in the array as the pivot (as covered in the lecture), then it should partition the array as described in the lecture. The method should then return the index of the pivot back to the caller

 

What you need to do for this exercise: 

1.    In the provided starter solution, in the PCE_ForTests project, you should find a class named SortingAndSearching.  You should implement Partition, as described above.

2.    Once you’ve done this, all the tests in the Test_Partition class should pass.