Answered: he algorithm below is to determine if…

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

The algorithm below is to determine if two given sequences A and B both containing n integers have identical values. It returns a Boolean value “True” if the two arrays have identical values and “False” if otherwise. Two sequences A and B are considered having identical values if every element of sequence A is equal to its corresponding element in sequence B (that is, A[0] is equal to B[0], A[1] is equal to B[1], etc.). Any problem with this algorithm?

Incorrect as the statement that increases the variable LoopCount is wrong placed in the While-loop.

Correct but inefficient

Incorrect as it just based on the last number in the sequence.

Correct

Inefficient

CompareSequence(A, B, n) {
loopCount= 0
Result =True
while ((loopCount <n) {
if A[loopCount] !=B[loopCount]
Result = False
else
Result = True
LoopCount = LoopCount + 1
}
return Result

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