Answered: Consider the following recursive…

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

Consider the following recursive algorithm
Algorithm Power(n)
//Computes 2?? recursively by the formula 2?? = 2??-1+ 2??-1
//Input: A nonnegative integer n
//Output: Returns 2??
if n = 0 return 1
else return Power (n - 1) + Power (n - 1)

b) Draw a tree of recursive calls for this algorithm and count the number of calls made by
the algorithm.

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