Analysis of Quicksort Program Plan: Include the required header files to the program. Define “AbstractSort” class. In public, declare the pure virtual function. In the “get_comparison” function return the total number of comparison. In protected, declare the “compare” function. In the “reset_comparison” function reset the comparison value to “0”. In private, declare the required variable. Define the “compare” function outside the class definition. Inside the function, increment the comparison count and return the number of comparison. Define the derived class “Quicksort”. In public, declare the “sort” function. In private, declare the “quick” function and “partition” function. Define the “quick” function. If the least number is greater than the highest number, return the value to the function. Call the “partition”, quick” functions. Define the “partition” function. Set the pivot value. Declare and set the “front” variable. If the “front” value is less than “u”, swap the values and increment the pivot variable. Increment the “front” variable. Define the “main()” function. Declare and initialize the required variables. Get the array value from the user. Check the array value with array index. If the array value is greater than index value exits the program. Initialize the random number generator and generate the random numbers. Create the object for the class “Quicksort”. Call the “sort” function. Display the result.

Question

Task 3. i) Compare your results from Tasks 1 and 2. j) Repeat Tasks 1 and 2 for 500 and 5,000 elements. k) Summarize run-time results in the following table: Time/size n String StringBuilder 50 500 5,000

Answer 1

Question

Chapter 15, Problem 2PC

Program Plan Intro

Analysis of Quicksort

Program Plan:

Include the required header files to the program.

Define “AbstractSort” class.

In public, declare the pure virtual function.

In the “get_comparison” function return the total number of comparison.

In protected, declare the “compare” function.

In the “reset_comparison” function reset the comparison value to “0”.

In private, declare the required variable.

Define the “compare” function outside the class definition.

Inside the function, increment the comparison count and return the number of comparison.

Define the derived class “Quicksort”.

In public, declare the “sort” function.

In private, declare the “quick” function and “partition” function.

Define the “quick” function.

If the least number is greater than the highest number, return the value to the function.

Call the “partition”, quick” functions.

Define the “partition” function.

Set the pivot value.

Declare and set the “front” variable.

If the “front” value is less than “u”, swap the values and increment the pivot variable.

Increment the “front” variable.

Define the “main()” function.

Declare and initialize the required variables.

Get the array value from the user.

Check the array value with array index.

If the array value is greater than index value exits the program.

Initialize the random number generator and generate the random numbers.

Create the object for the class “Quicksort”.

Call the “sort” function.

Display the result.

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Task 3. i) Compare your results from Tasks 1 and 2. j) Repeat Tasks 1 and 2 for 500 and 5,000 elements. k) Summarize run-time results in the following table: Time/size n String StringBuilder 50 500 5,000

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