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Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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.
![Task 3: Implement quicksort()
Points: 2
Implement the quicksort() function that takes one additional boolean argument randomized , which indicates whether partition() or
randomized partition() needs be called.
In [17]: def quickSort(arr, low, high, randomized=False):
if len(arr) == 1:
return arr
if low < high:
if randomized:
pi = randomized_partition(arr, low, high, seed=0)
W Separately sort elements before
A partition and after partition
quickSort(arr, low, pi-1, randonized=randomized)
quickSort(arr, pi+1, high, randonized=randomized)
else:
A pi is partitioning index, arr[p] is now
* at right pLace
pi = partition( arr, low, high)
W Separately sort elements before
A partition and after partition
quickSort(arr, low, pi-1, randomized=randomized)
quickSort(arr, pi+1, high, randonized=randomized)
Input In [17]
quickSort(arr, low, pi-1, randomized=randomized)
IndentationError: unexpected indent
In [18]: Do NOT change the test code here.
np.randon.seed (1)
arr = np.random.randint (1, 20, 15)
print(f'Original arr = {arr}')
arri = arr.copy()
quickSort (arri, 8, len(arr1)-1)
print(f'Sorted by quicksort(): (arr1}')
arr2 = arr.copy()
quickSort (arr2, 8, len(arr2)-1, randomized=True)
print(f'Sorted by randomized_quicksort(): {arr2})
Original arr = [ 6 12 13 9 10 12 6 16 1 17
2 13
8 14 7)
NameError
Traceback (most recent call last)
Input In [18], in <module>
5 print(f'Original arr = {arr}')
7 arri = arr.copy ()
8 quickSort(arri, 8, len(arr1)-1)
9 print(f'Sorted by quicksort(): {arr1}')
11 arr2 - arr.copy()
Name Error: name "quickSort' is not defined
Expected output:
Original arr = [6 12 13 9 10 12 6 18 1 172 13 8 14 7]
Sorted by quicksort(): [12607 80 10 12 12 13 13 14 16 17]
Sorted by randomized_quicksort(): [1268789 10 12 12 13 13 14 18 17]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F29d44601-9926-46f9-b961-f5ed342a97b4%2F67100003-3d3f-4994-abb7-49ffaf52e3c5%2Fov59br_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Task 3: Implement quicksort()
Points: 2
Implement the quicksort() function that takes one additional boolean argument randomized , which indicates whether partition() or
randomized partition() needs be called.
In [17]: def quickSort(arr, low, high, randomized=False):
if len(arr) == 1:
return arr
if low < high:
if randomized:
pi = randomized_partition(arr, low, high, seed=0)
W Separately sort elements before
A partition and after partition
quickSort(arr, low, pi-1, randonized=randomized)
quickSort(arr, pi+1, high, randonized=randomized)
else:
A pi is partitioning index, arr[p] is now
* at right pLace
pi = partition( arr, low, high)
W Separately sort elements before
A partition and after partition
quickSort(arr, low, pi-1, randomized=randomized)
quickSort(arr, pi+1, high, randonized=randomized)
Input In [17]
quickSort(arr, low, pi-1, randomized=randomized)
IndentationError: unexpected indent
In [18]: Do NOT change the test code here.
np.randon.seed (1)
arr = np.random.randint (1, 20, 15)
print(f'Original arr = {arr}')
arri = arr.copy()
quickSort (arri, 8, len(arr1)-1)
print(f'Sorted by quicksort(): (arr1}')
arr2 = arr.copy()
quickSort (arr2, 8, len(arr2)-1, randomized=True)
print(f'Sorted by randomized_quicksort(): {arr2})
Original arr = [ 6 12 13 9 10 12 6 16 1 17
2 13
8 14 7)
NameError
Traceback (most recent call last)
Input In [18], in <module>
5 print(f'Original arr = {arr}')
7 arri = arr.copy ()
8 quickSort(arri, 8, len(arr1)-1)
9 print(f'Sorted by quicksort(): {arr1}')
11 arr2 - arr.copy()
Name Error: name "quickSort' is not defined
Expected output:
Original arr = [6 12 13 9 10 12 6 18 1 172 13 8 14 7]
Sorted by quicksort(): [12607 80 10 12 12 13 13 14 16 17]
Sorted by randomized_quicksort(): [1268789 10 12 12 13 13 14 18 17]
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