# Evaluation of QuickSort and HeapSort

**SuperClass**

**Evaluation of QuickSort and HeapSort**

You are required to implement **correctly**and **efficiently**the *Heapsort*and *Quicksort*advanced sorting methods. You may find any necessary information and pseudo-code in the book:

*Heapsort*: chapter 6 (Heapsort)

*Quicksort*: chapter 7 (Quicksort)

Before starting to work on the algorithms evaluation code, make sure you have a correct implementation of the algorithm. You need to show your algorithms sort properly on a small-sized input.

You are required to compare the two sorting procedures in the

**average**case. For the**average**case you have to repeat the measurements m times (m=5) and report their average. Moreover, to be a fair comparison, make sure you always use the**same**input sequence for the two methods.This is how the analysis should be performed:

- vary the dimension of the input array (

*n*) between [100…1000], with an increment of maximum 100;- for each dimension, generate the appropriate input sequence for the method; run the method, counting the operations (assignments, comparisons, and their sum). Only the assignments and comparisons performed on the input structure and its corresponding auxiliary variables matter (no assignments/comparisons on indexes have to be counted; justify why).

Generate charts (1/operation measured) which compares the two methods under the total number of operations, in the

**average**case. If one of the curves cannot be visualized correctly because the other has a larger growth rate, place that curve on a separate chart as well. Name your chart and the curves on it appropriately.Interpret the charts and write your observations, interpretation, conclusions, in a separate (document) file.

Evaluate Quicksort in the

**best**and**worst**cases also – total number of operations. Compare the performance of Quicksort in the three analysis cases. In the document file, justify the choice of the cases and interpret the results.

- 5 years ago

**Evaluation of QuickSort and HeapSort A+ Tutorial use as Guide**

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- evaluation_of_quicksort_and_heapsort.docx