Answered: 1-- Consider the following algorithm:…

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

1--

Consider the following algorithm:

sum = 0

For j starting at 1 and ending with 11:
sum = sum + (9*j + 4)

print(sum)

What is printed as a result of executing this algorithm?

2--

#Part 1: computes A - B and its cardinality

AminusB = set()
for element in A: # this line runs through every element in A
if not(element in B): #A - B is the set of elements that are in A and are not in B
AminusB.add(element) # Add to AminusB every element in A if the element is also not in B

n = len(AminusB) #len() returns the number of elements in the array
print(n)

What value is printed as a result of executing this algorithm?

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