2
In implementing Quick Sort, which of the following choices gives the highest likelihood for a balanced partitioning?
Group of answer choices
choosing the last element as the pivot
choosing the first element as the pivot
choosing a random element as the pivot
using the median-of-three partitioning method
Homework Answers
Solution : The correct answer is ”option a”.
Choosing a random element as the pivot.
Explanation :
The selection of correct pivot element is very important in order to get balanced partitions. If first or last element is chosen, the selection may be fast but it may lead to most number of comparisons and thus may prove as the worst case. One way to avoid this to choose the pivot element randomly. This will prevent the scenario where the input is bad.
Add Answer to:
2
In implementing Quick Sort, which of the following choices gives
the highest likelihood for a...
Using C++, sort an array of 10,000 elements using the quick sort algorithm as follows: a....
Using C++, sort an array of 10,000 elements using the quick sort algorithm as follows: a. Sort the array using pivot as the middle element of the array. b. Sort the array using pivot as the median of the first, last, and middle elements of the array. c. Sort the array using pivot as the middle element of the array. However, when the size of any sublist reduces to less than 20, sort thesublis t using an insertion sort. d....
The quick sort algorithm uses a ________ to divide the array into two pieces. Group of...
The quick sort algorithm uses a ________ to divide the array into two pieces. Group of answer choices divider pivot mid-point key Which of the following statement(s) are true about quick sort? Group of answer choices It does not require additional memory that merge sort does. All of them In practice, it can be faster than merge sort. It can degrade into an O(n2) sort if the pivot-selection scheme is bad. Which sort does not use comparisons? Group of answer...
Give an example input (6 elements) for quick sort which would result in worst case performance,...
Give an example input (6 elements) for quick sort which would result in worst case performance, (using the scheme of choosing the left-most element as the pivot).
Sorting Sort the following array using the quick sort algorithm: (4 Marks) a. 12 26 8...
Sorting Sort the following array using the quick sort algorithm: (4 Marks) a. 12 26 8 9 7 0 4 Pivot selection is defined to be the first element of each sub-list. Show the array before and after each quicksort round (when the array is partitioned after placing the pivot at its correct position). Also, clearly highlight the pivot in each partition b. Consider an unsorted array of integers of size n. Write a Java program to arrange the array...
Sorting algorithm: quick sort Exercise One (20 marks) Given the following program body for implementing Quick...
Sorting algorithm: quick sort
Exercise One (20 marks) Given the following program body for implementing Quick sort, complete the program by writing code where required import java.util.Random; public class QuickSort public void quickSectlinti] A) QuickSort/A, O, A.length-1); private void guickSortlin Aiat low.int high) //Complete the code for the quicksort method (5 marks] private void swaplint[] a, int indexl, int index2) //Complete the code for the swap method [3 marks] private int setPivotlint low, int high) Random rand = new Random();...
Perform the partition method of quick sort once on the array [8, 12, 2, 15, 7]....
Perform the partition method of quick sort once on the array [8, 12, 2, 15, 7]. Show the array after each iteration of the while loop in the partition method. Use the first element (here it is 8) as the pivot. Show the two-sub array after one call to quick sort.
6) Assume that we are using quick sort algorithm to sort the following elements in the...
6) Assume that we are using quick sort algorithm to sort the following elements in the array 26, 15,30,11,8,17 22, 40, 4, 10. Use the first element in the array as pivot. (20 pts.) 1- How total iterations it would take to complete the sorting process? 2- Simulate the entire sorting process. (If you need additional space, complete it at the other side of the paper) public static void quick_sort(intl] a, int left, int right) if (left < right) (...
Assume that you are sorting an array of 8 elements with quick sort. You just finished...
Assume that you are sorting an array of 8 elements with quick sort. You just finished the first pass and the array looks like below. Which statement is true for the pivot value? 4 8 12 16 18 20 22 24 QUICKSORT ALGORITHM Quicksort selects a specific value called a pivot and rearranges the array into two parts (called partioning). If the array is randomly ordered, it does not matter which element is the pivot. For simplicity, the first element...
1. Given the following list 107, 22, 53, 85, 21, 6, 97, 6, 32 Use merge sort to fill the followin...
1. Given the following list 107, 22, 53, 85, 21, 6, 97, 6, 32 Use merge sort to fill the following table that shows the value of first and last arguments in calling the quick sort method and the content of the list after each merging a. After f list merge firstlast method O 34 6 7 [8) b. Use number of elements in the merge sort in part a to draw the merge sort tree that shows the divide...
Directions: Problem 1: Write (using pen-and-paper rather than code) the list after each pass of quick...
Directions: Problem 1: Write (using pen-and-paper rather than code) the list after each pass of quick and merge sort for the following list of numbers. Assume that you are sorting the numbers into ascending order. For quick sort, assume that the first number from the sublist is chosen as the pivot. 54 17 21 18 4 7 19 41 Problem 2: Write the list after each pass of the quick sort algorithm for the following list of numbers, using the...
Sorting Sort the following array using the quick sort algorithm: (4 Marks) a. 12 26 8 9 7 0 4 Pivot selection is defined to be the first element of each sub-list. Show the array before and after each quicksort round (when the array is partitioned after placing the pivot at its correct position). Also, clearly highlight the pivot in each partition b. Consider an unsorted array of integers of size n. Write a Java program to arrange the array...
Sorting algorithm: quick sort
Exercise One (20 marks) Given the following program body for implementing Quick sort, complete the program by writing code where required import java.util.Random; public class QuickSort public void quickSectlinti] A) QuickSort/A, O, A.length-1); private void guickSortlin Aiat low.int high) //Complete the code for the quicksort method (5 marks] private void swaplint[] a, int indexl, int index2) //Complete the code for the swap method [3 marks] private int setPivotlint low, int high) Random rand = new Random();...
6) Assume that we are using quick sort algorithm to sort the following elements in the array 26, 15,30,11,8,17 22, 40, 4, 10. Use the first element in the array as pivot. (20 pts.) 1- How total iterations it would take to complete the sorting process? 2- Simulate the entire sorting process. (If you need additional space, complete it at the other side of the paper) public static void quick_sort(intl] a, int left, int right) if (left < right) (...
Assume that you are sorting an array of 8 elements with quick sort. You just finished the first pass and the array looks like below. Which statement is true for the pivot value? 4 8 12 16 18 20 22 24 QUICKSORT ALGORITHM Quicksort selects a specific value called a pivot and rearranges the array into two parts (called partioning). If the array is randomly ordered, it does not matter which element is the pivot. For simplicity, the first element...
1. Given the following list 107, 22, 53, 85, 21, 6, 97, 6, 32 Use merge sort to fill the following table that shows the value of first and last arguments in calling the quick sort method and the content of the list after each merging a. After f list merge firstlast method O 34 6 7 [8) b. Use number of elements in the merge sort in part a to draw the merge sort tree that shows the divide...
Most questions answered within 3 hours.
-
The following base sequence is found for a mRNA fragment from
wild-type E. coli: 5'- UAUCAGUAGAUAAUGUAACC-3'...
asked 55 seconds ago -
For this exercise, round all regression parameters to three
decimal places.
One of the two tables...
asked 19 minutes ago -
What is the 5% level of significance for mean = 3.60, standard
deviation = 0.94, and...
asked 23 minutes ago -
Prior to beginning work on this discussion, please read the
article by Hayley Peterson, 15 Companies...
asked 51 minutes ago -
Which pair of aqueous solutions, when mixed, will form a
precipitate?
A) NaNO3 and AgC2H3O2
B)...
asked 1 hour ago -
1-Write an algorithm to get two numbers from the user (as
inputs) and calculate the sum...
asked 4 hours ago -
Define white-collar crime. What is the difference between
offender and offense-based definitions of white-collar crime? What...
asked 5 hours ago -
Consider a reaction which is 1st order with respect to A and 1st
order with respect...
asked 5 hours ago -
c++
The length of the hypotenuse of a right-angled triangle is the
square root of the...
asked 5 hours ago -
When a metal rod is heated, not only its resistance but also its
length and cross‐sectional...
asked 5 hours ago -
write a c++ program that computes the L^1 - Norm of a given
vector (L^1 norm...
asked 5 hours ago -
A manufacturer of banana chips would like to know whether its
bag filling machine works correctly...
asked 5 hours ago