CENGAGE MINDTAP Programming Exercise 3.9 D lil √> E O Tasks Define the insertionSort() function The insertionSort() ... Run checks JO > Submit 50% testquicksort.py 1 "n 2 Project 3.9 3 File: testquicksort.py 4 5 Tests the quicksort algorithm 6 """ 10 11 12 13 14 15 + 7 8 def insertionSort (lyst, left, right): 9 offset=left for i in range(1,right-left, +1): key = lyst [offset+i] j=i-1 20 21 22 ↓ while j>=0 and key < [offset +j]: 16 17 def newQuicksortHelper (lyst, left, right): 18 19 95, 95, 98, 97, 96, 99, 1 00, 100, 199, 101, 101, 1 01, 106, 104, 104, 105, 1 04, 106, 107, 107, 107, 1 07, 108, 108, 110, 108, 1 10, 111, 112, 126, 114, 1 14, 114, 115, 115, 116, 1 16, 120, 117, 128, 121, 1 23, 126, 124, 130, 131, 1 31, 131, 131, 133, 134, 1 34, 134, 137, 141, 138, 1 38, 139, 140, 147, 142, 1 42, 142, 142, 145, 146, 1 46, 149, 152, 164, 154, 1 56, 168, 159, 159, 159, 1 64, 166, 159, 167, 173, 1 68, 169, 169, 170, 174, 1 74, 186, 107, 175, 175, 1 76, 176, 178, 182, 180, 1 80, 182, 181, 184, 184, 1 85, 197, 186, 186, 197, 1 global THRESHOLD if left right: if left right > THRESHOLD: pivotLocation = partition (lyst, left. 99, 189, 198, 193, 200] quicksortHelper (lyst, left, pivot Loca sandbox $ lyst [offset +j+1] =lyst [offset j -= 1 lyst [offset +j+1] = key Q Search this course >_ Terminal X +
CENGAGE MINDTAP Programming Exercise 3.9 D lil √> E O Tasks Define the insertionSort() function The insertionSort() ... Run checks JO > Submit 50% testquicksort.py 1 "n 2 Project 3.9 3 File: testquicksort.py 4 5 Tests the quicksort algorithm 6 """ 10 11 12 13 14 15 + 7 8 def insertionSort (lyst, left, right): 9 offset=left for i in range(1,right-left, +1): key = lyst [offset+i] j=i-1 20 21 22 ↓ while j>=0 and key < [offset +j]: 16 17 def newQuicksortHelper (lyst, left, right): 18 19 95, 95, 98, 97, 96, 99, 1 00, 100, 199, 101, 101, 1 01, 106, 104, 104, 105, 1 04, 106, 107, 107, 107, 1 07, 108, 108, 110, 108, 1 10, 111, 112, 126, 114, 1 14, 114, 115, 115, 116, 1 16, 120, 117, 128, 121, 1 23, 126, 124, 130, 131, 1 31, 131, 131, 133, 134, 1 34, 134, 137, 141, 138, 1 38, 139, 140, 147, 142, 1 42, 142, 142, 145, 146, 1 46, 149, 152, 164, 154, 1 56, 168, 159, 159, 159, 1 64, 166, 159, 167, 173, 1 68, 169, 169, 170, 174, 1 74, 186, 107, 175, 175, 1 76, 176, 178, 182, 180, 1 80, 182, 181, 184, 184, 1 85, 197, 186, 186, 197, 1 global THRESHOLD if left right: if left right > THRESHOLD: pivotLocation = partition (lyst, left. 99, 189, 198, 193, 200] quicksortHelper (lyst, left, pivot Loca sandbox $ lyst [offset +j+1] =lyst [offset j -= 1 lyst [offset +j+1] = key Q Search this course >_ Terminal X +
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Question
Implement the insertionSort function and modify the quicksortHelper() function so that it calls insertion sort to sort any sublist whose size is less than 50 items.
Compare the performance of this version with that of the original one, using data sets of 50, 500, and 5000 items.
Afterwards, adjust the threshold for using the insertion sort to determine an optimal setting based on your findings from the step above.
To test your program run the main() method in the testquicksort.py file.
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