return midpt; else if (arr[midpt] < value) return else return find(arr,value, left, midpt-1); } void main(void) { int arr[] ={4,5,6,9,11}; cout<

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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#include <iostream>
using namespace std;
int find(int arr[], int value, int left, int right)
{
int midpt = (left+right)/2;
if (left > right)
return -1;
if ( arr[midpt]
return midpt;
else if (arr[midpt] < value)
== value)
return
else
return find(arr,value, left,midpt-1);
}
void main(void)
{
int arr[] ={4,5,6,9,11};
cout<<find(ar,4,0,4)<<endl; /* displays 0 */
cout<<find(arr,9,0,4)<«endl; /* displays 3 */
cout<<find(arr,10,0,4)<<endl; /* displays -1 */
}
(a) find(arr, value, right, midpt+1)
(b) find(arr,value, midpt+1,right)
(c) find(arr,value, left,midpt+1)
(d) find(arr,value, right,midpt-1)
(e) find(arr,value, left, midpt
Transcribed Image Text:#include <iostream> using namespace std; int find(int arr[], int value, int left, int right) { int midpt = (left+right)/2; if (left > right) return -1; if ( arr[midpt] return midpt; else if (arr[midpt] < value) == value) return else return find(arr,value, left,midpt-1); } void main(void) { int arr[] ={4,5,6,9,11}; cout<<find(ar,4,0,4)<<endl; /* displays 0 */ cout<<find(arr,9,0,4)<«endl; /* displays 3 */ cout<<find(arr,10,0,4)<<endl; /* displays -1 */ } (a) find(arr, value, right, midpt+1) (b) find(arr,value, midpt+1,right) (c) find(arr,value, left,midpt+1) (d) find(arr,value, right,midpt-1) (e) find(arr,value, left, midpt
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