Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Write Python commands, within a print command, that output the following. (E.g. print(list(range(10)))  ), in spyder

(i)   The penultimate element of the list b where b = list(range(-41,10))

(ii)    The middle element of the list c where c = 10*a+5*b

Expert Solution
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Step 1: Algorithm of the code

Algorithm to Calculate and Print Penultimate and Middle Elements of Lists

1. Create a list 'a' containing numbers from 0 to 9.
2. Create a list 'b' containing numbers from -41 to 9.
3. Initialize an empty list 'c' to store the results.
4. Iterate through the elements of 'a' and 'b' in parallel:
   - For each pair of corresponding elements (a_i, b_i), calculate 10 * a_i + 5 * b_i.
   - Append the result to the 'c' list.
5. Calculate the penultimate element of list 'b' by accessing 'b[-2]'.
6. Calculate the middle element of list 'c' by finding the index 'len(c) // 2' and accessing the element at that index.
7. Print the penultimate element of list 'b' and the middle element of list 'c'.

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