Run Time Analysis Provide the tightest big-Oh bound on the run time for each of the following methods.  int pow(double x, int n) {       if( n==0 )             return 1;       else       {             double halfpower = pow(x,n/2);             if( n % 2 == 0 )             {

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
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  1. Run Time Analysis

Provide the tightest big-Oh bound on the run time for each of the following methods. 

int pow(double x, int n)

{

      if( n==0 )

            return 1;

      else

      {

            double halfpower = pow(x,n/2);

            if( n % 2 == 0 )

            {

                  return halfpower*halfpower;

            }

            else

            {

                  return halfpower*halfpower*x;

            }

      }

}

 
Expert Solution
Step 1
  1. Run Time Analysis

Provide the tightest big-Oh bound on the run time for each of the following methods. 

int pow(double x, int n)

{

      if( n==0 )

            return 1;

      else

      {

            double halfpower = pow(x,n/2);

            if( n % 2 == 0 )

            {

                  return halfpower*halfpower;

            }

            else

            {

                  return halfpower*halfpower*x;

            }

      }

}

 
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