RT(A, p, q − 1) QUICKSORT(A, q + 1, r) where the PARTI
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
(CYCLOMATIC/MCCABE COMPLEXITY)
Consider the following quicksort sorting
QUICKSORT(A, p, r)
if p < r
then q ← PARTITION(A, p, r)
QUICKSORT(A, p, q − 1)
QUICKSORT(A, q + 1, r)
where the PARTITION procedure is as follows:
PARTITION(A, p, r)
x ← A[r]
i ← p − 1
for j ← p to r − 1
do if A[j] ≤ x
then i ← i + 1
exchange A[i] ↔ A[j]
exchange A[i + 1] ↔ A[r]
return i + 1
- Draw the flowchart of the above algorithm.
- Draw the corresponding graph and label the nodes as n1, n2, … and edges as e1, e2, …
- Calculate the cyclomatic complexity of the above algorithm.
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