This should look familiar as it is very similar to the Quicksort method we looked at in class. However, there is a difference. Note that there is more going on in the pivot function, and there are three recursive calls instead of two. (a) Briefly describe the difference between this Quicksort variation and typical Quicksort. (b) Discuss the best and worst-case runtime of this algorithm by giving recurrence relations and giving the big-Oh runtimes. Make sure you explain everything.

Draw the hierarchy chart and design the logic for a program that calculates service charges for hazel's housecleaning service. the program contains housekeeping, detail loop, and end-of-job modules. the main program declares any needed global variables and constants and calls the other modules. the housekeeping module displays a prompt for and accepts a customer's last name. while the user does not enter for the name, the detail loop accepts the number of bathrooms and the number of other rooms to be cleaned. the service charge is computed as $40 plus $15 for each bathroom and $10 for each of the other rooms. the detail loop also displays the service charge and then prompts the user for the next customer's name. the end-of-job module, which executes after the user enters the sentinel value for the name, displays a message that indicates the program is complete.

For all machines-not just hammers- the user applies force force to the machine to the machine over a certain distance. a. input b. output c. duo d. none of the above

What key should you press and hold to select and open multiple files at one time? enter alt control esc