The script has four steps: 1. Read a list of integers (no duplicates). 2. Output the numbers in the list. 3. Perform an insertion sort on the list. 4. Output the number of comparisons and swaps performed during the insertion sort. Steps 1 and 2 are provided in the script. Implement step 3 based on the insertion sort algorithm in the book. Modify insertion_sort() to: • Count the number of comparisons performed. • Count the number of swaps performed. Output the list during each iteration of the outside loop. Implement step 4 at the end of the script. Hints: In order to count comparisons and swaps, modify the while loop in insertion_sort(). Use global variables for comparisons and swaps. The script includes three helper functions: • read_nums() # Read and return a list of integers. • print_nums(nums) # Output the numbers in nums • swap(nums, n, m) # Exchange nums[n] and nums[m] Ex: When the input is: 3 2 1 598 the output is: 3 2 1598 231598 1 2 3 5 9 8 1 2 3 5 9 8 1 2 3 5 9 8 1 2 3 5 8 9 comparisons: 7 swaps: 4

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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Fill out the python code

1 def read_nums():
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10 def swap(nums, n, m):
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"""Read numbers from input and return them in a list"""
return [int(num) for num in input().split()]
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24 if __name__ == '__main__':
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def print_nums (nums):
"""Output numbers, separating each item by a spaces;
no space or newline before the first number or after the last."""
print('.join([str(n) for n in nums]), end='')
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"""Exchange nums [n] and nums [m]""
nums [n], nums [m] = nums [m], nums [n]
def insertion_sort (numbers):
"""Sort the list numbers using insertion sort"""|
for i in range(1, len(numbers)):
j = i
# Insert numbers [i] into sorted part
# stopping once numbers [i] is in correct position
while j> 0 and numbers [j] < numbers [j - 1]:
swap(numbers, j, j - 1)
j -= 1
#Step 1: Read numbers into a list
numbers read_nums ()
# Step 2: Output the numbers list
print_nums (numbers);
print(end='\n\n')
# Step 3: Sort the numbers list
insertion_sort(numbers)
print
()
# Step 4: TODO: Output the number of comparisons and swaps performed
Transcribed Image Text:1 def read_nums(): 6000 SAWNP 2 3 4 5 6 7 8 9 13 14 10 def swap(nums, n, m): 11 12 15 16 17 18 22 19 NE 27 28 29 30 31 234 35 36 37 """Read numbers from input and return them in a list""" return [int(num) for num in input().split()] 20 21 22 23 24 if __name__ == '__main__': 25 26 33 def print_nums (nums): """Output numbers, separating each item by a spaces; no space or newline before the first number or after the last.""" print('.join([str(n) for n in nums]), end='') 37 """Exchange nums [n] and nums [m]"" nums [n], nums [m] = nums [m], nums [n] def insertion_sort (numbers): """Sort the list numbers using insertion sort"""| for i in range(1, len(numbers)): j = i # Insert numbers [i] into sorted part # stopping once numbers [i] is in correct position while j> 0 and numbers [j] < numbers [j - 1]: swap(numbers, j, j - 1) j -= 1 #Step 1: Read numbers into a list numbers read_nums () # Step 2: Output the numbers list print_nums (numbers); print(end='\n\n') # Step 3: Sort the numbers list insertion_sort(numbers) print () # Step 4: TODO: Output the number of comparisons and swaps performed
The script has four steps:
1. Read a list of integers (no duplicates).
2. Output the numbers in the list.
3. Perform an insertion sort on the list.
4. Output the number of comparisons and swaps performed during the insertion sort.
Steps 1 and 2 are provided in the script.
Implement step 3 based on the insertion sort algorithm in the book. Modify insertion_sort() to:
• Count the number of comparisons performed.
Count the number of swaps performed.
• Output the list during each iteration of the outside loop.
Implement step 4 at the end of the script.
Hints: In order to count comparisons and swaps, modify the while loop in insertion_sort(). Use global variables for comparisons and swaps.
The script includes three helper functions:
• read_nums() # Read and return a list of integers.
• print_nums(nums) # Output the numbers in nums
swap(nums, n, m) # Exchange nums[n] and nums[m]
Ex: When the input is:
3 2 1 598
the output is:
3 2 1 5 9 8
2 3 1 5 9 8
1 2 3 5 9 8
1 2 3 5 9 8
1 2 3 5 9 8
1 2 3 5 8 9
comparisons: 7
swaps: 4
Transcribed Image Text:The script has four steps: 1. Read a list of integers (no duplicates). 2. Output the numbers in the list. 3. Perform an insertion sort on the list. 4. Output the number of comparisons and swaps performed during the insertion sort. Steps 1 and 2 are provided in the script. Implement step 3 based on the insertion sort algorithm in the book. Modify insertion_sort() to: • Count the number of comparisons performed. Count the number of swaps performed. • Output the list during each iteration of the outside loop. Implement step 4 at the end of the script. Hints: In order to count comparisons and swaps, modify the while loop in insertion_sort(). Use global variables for comparisons and swaps. The script includes three helper functions: • read_nums() # Read and return a list of integers. • print_nums(nums) # Output the numbers in nums swap(nums, n, m) # Exchange nums[n] and nums[m] Ex: When the input is: 3 2 1 598 the output is: 3 2 1 5 9 8 2 3 1 5 9 8 1 2 3 5 9 8 1 2 3 5 9 8 1 2 3 5 9 8 1 2 3 5 8 9 comparisons: 7 swaps: 4
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