There is an error in the following recursive method, which implements a binary search. Find the error and indicate how to fix the code so that the method will work correctly
There is an error in the following recursive method, which implements a binary search. Find the error and indicate how to fix the code so that the method will work correctly
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
Related questions
Question
There is an error in the following recursive method, which implements a binary search. Find the error and indicate how to fix the code so that the method will work correctly.
![private int recFind(long searchKey, int lowerBound, int upperBound)
{
int curIn;
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curIn = (lowerBound + upperBound )/ 2;
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if (lowerBound > upperBound)
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return nElems;
32
else
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{
if (a[curIn] < searchKey)
return recFind (searchKey, curIn+l, upperBound) ;
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36
else
return recFind (searchKey, lowerBound, curIn-1);
}
}
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N N N N~MOM333 333 m3](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F10d128c6-7dff-4c7c-9646-bb2f6ba4f5ff%2F1f574732-6ba9-4a3c-97c6-d0d642573107%2Fcil8nl6_processed.png&w=3840&q=75)
Transcribed Image Text:private int recFind(long searchKey, int lowerBound, int upperBound)
{
int curIn;
24
25
27
28
curIn = (lowerBound + upperBound )/ 2;
29
30
if (lowerBound > upperBound)
31
return nElems;
32
else
33
{
if (a[curIn] < searchKey)
return recFind (searchKey, curIn+l, upperBound) ;
34
35
36
else
return recFind (searchKey, lowerBound, curIn-1);
}
}
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38
39
N N N N~MOM333 333 m3
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