Data Structures and Algorithms in Java
6th Edition
ISBN: 9781119278023
Author: Michael T. Goodrich; Roberto Tamassia; Michael H. Goldwasser
Publisher: Wiley Global Education US
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Textbook Question
Chapter 4, Problem 49C
Consider the following “justification” that the Fibonacci function, F(n) is O(n): Base case (n ≤ 2): F(1) = 1 and F(2) = 2.
Induction step (n > 2): Assume claim true for n′ < n. Consider n. F(n) = F(n − 2) + F(n − 1). By induction, F(n − 2) is O(n − 2) and F(n − 1) is O(n − 1). Then, F(n) is O((n − 2) + (n − 1)), by the identity presented in Exercise R-4.16.
Therefore, F(n) is O(n).
What is wrong with this “justification”?
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Chapter 4 Solutions
Data Structures and Algorithms in Java
Ch. 4 - Prob. 1RCh. 4 - The number of operations executed by algorithms A...Ch. 4 - The number of operations executed by algorithms A...Ch. 4 - Prob. 4RCh. 4 - Prob. 5RCh. 4 - Prob. 6RCh. 4 - Prob. 7RCh. 4 - Prob. 8RCh. 4 - Prob. 9RCh. 4 - Prob. 10R
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