EBK DATA STRUCTURES AND ALGORITHMS IN C
4th Edition
ISBN: 9781285415017
Author: DROZDEK
Publisher: YUZU
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What are the properties of a heap? What is the running time of heap sort on an array A of length n that is already sorted in increasing order? What about the same in decreasing order? Lastly, trace out the heap sort algorithm for the following list: {25, 44, 55, 99, 30, 37, 15, 10, 2, 4} in Python.
Your activity should include the following in Python: 1. A description of the algorithm(s) and, if helpful, pseudocode. 2. At least one worked example or diagram to show more precisely how the algorithm(s) works. Paper should be 2-3 pages in length (not including title and references pages)
Justify the extra work involved in the trickle down algorithm compared to the trickle up method when working with a heap.
Give an explanation of the difference between a stack and a heap. include the stack, the frame, and any other relevant data.
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EBK DATA STRUCTURES AND ALGORITHMS IN C
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- Your project leader has been quite impressed by your performance on binary search trees, and started entertaining the idea of keeping you full time after you graduate. However, she needs to make a case to her manager about how magnificent a problem solver you are. Thus, she decided to put a few more challenges for you. This time she wants to test how well versed you are with heaps. You are given an unsorted array of size n. Below are the set of questions that you need to solve to prove your worth by using this unsorted array. (a) The naive way of generating a heap with that array is by using a separate list of the same size and generating the heap by inserting elements one by one. Give a O(n log n) time algorithm to generate the heap. (b) That was easy. How about generating the heap in place? Give pseudocode or explain in plain English of a function, that generates a heap without using a second list. You can only use upheap/downheap functions that we used in class, while other…arrow_forwardThere is an algorithm for making the heap complete:1. Remove the node at the root.2. Move the node in the last position to the root.3. Trickle the last node down until it is below.When this algorithm is applied continually, the data is removed from the heap in sorted order. Write the code for the Remove and TrickleDown methods in c#.arrow_forwardan application has a huge number of find the maximum operations, but a relatively small number of insert and remove the maximum operations. Which priority- queue implementation do you think would be most effective: heap, unordered array, or ordered array? Explain your Answer.arrow_forward
- Create a more efficient HeapVector that just keeps its values in order when necessary: When values are added to the heap, they are appended to the end of the existing heap and the nonHeap flag is set to true. When values are removed, the nonHeap flag is checked, and the Vector, if necessary, is heapified. What are the worst-case and best-case add and delete operation times?arrow_forwardContinuing on from your implementation of the PriorityQueue class, add the method create_heap_fast (self, values) which takes a Python list as a parameter. This method should put elements from the Python list into the priority queue without using the insert method. The Big-O of this method is O(n). The method should do the following: • Insert each element from the parameter list and append it to the binary heap. • Set the size to the number of elements in the parameter list. • Get the starting index position (i.e. last element which has a child, size // 2). • Rearrange the elements starting from the above index position by calling the percolate_down() method. • Keep rearranging and working backwards towards the root. Note: submit the entire class definition. You can assume that the parameter list is not empty. For example: Test pq PriorityQueue () keys [9, 5, 8, 6, 3, 2] pq.create_heap_fast(keys) = = print (pq) Result [0, 2, 3, 8, 6, 5, 9]arrow_forwardImplement a Heap ADT using vector. In main function, declare an array of N (10 < N < 30) elements and fill it with random numbers between 1 and 100. Then fill heap with these number and then remove all items by displaying them on screen (heap sort demonstration).arrow_forward
- Implement a heap and show how to insert, remove, and search on it.arrow_forwardCould you help explain the difference between the restricted version of the stack and the unbounded version of the stack? Thank you for your time.arrow_forwardGive the array that results immediately after completing the first phase of heapsort (heap construction) on the following array of 10 keys: 7 4 2 3 5 8 1690 Your answer should be a heap. Enter you answer as a sequence of numbers separated by a single space. Do not put spaces at the beginning or the end of your answer. Do not include any punctuation!arrow_forward
- Show the heap that results when the items are inserted 1, 7, 2, 6, 3, 5, 4, 9, 11 .arrow_forwardWhat is the time complexity of converting a random array of size m to a heap?arrow_forwardThe HeapSort algorithm has been enhanced in this release. Explain and illustrate a variety of strategies for enhancing the performance of the HeapSort algorithm, which was introduced in the previous lecture series, including: Explain why you feel that the speed of the computer might be enhanced.arrow_forward
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