Given the following function, what happens if a[] contains just one element that doesn't match val? int binarySearch(int a[], int first, int last, int val) {     if (first > last) return -1;   int middle = (first + last) / 2;   if (a[middle] == val) return middle;   if (a[middle] < val) return binarySearch(a, middle+1, last, val);   else return binarySearch(a, first, middle-1, val); } Group of answer choices binarySearch never calls itself again and terminates (recursion never happens) binarySearch calls

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
icon
Related questions
Question

Given the following function, what happens if a[] contains just one element that doesn't match val?

int binarySearch(int a[], int first, int last, int val)
{  
  if (first > last) return -1;
  int middle = (first + last) / 2;
  if (a[middle] == val) return middle;
  if (a[middle] < val) return binarySearch(a, middle+1, last, val);
  else return binarySearch(a, first, middle-1, val);
}

Group of answer choices
binarySearch never calls itself again and terminates (recursion never happens)
binarySearch calls itself once then terminates (recursion happens once)
binarySearch calls itself twice then terminates (recursion happens twice)
binarySearch calls itself 3 times then terminates (recursion happens 3 times)
Expert Solution
steps

Step by step

Solved in 2 steps

Blurred answer
Knowledge Booster
Arrays
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Database System Concepts
Database System Concepts
Computer Science
ISBN:
9780078022159
Author:
Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:
McGraw-Hill Education
Starting Out with Python (4th Edition)
Starting Out with Python (4th Edition)
Computer Science
ISBN:
9780134444321
Author:
Tony Gaddis
Publisher:
PEARSON
Digital Fundamentals (11th Edition)
Digital Fundamentals (11th Edition)
Computer Science
ISBN:
9780132737968
Author:
Thomas L. Floyd
Publisher:
PEARSON
C How to Program (8th Edition)
C How to Program (8th Edition)
Computer Science
ISBN:
9780133976892
Author:
Paul J. Deitel, Harvey Deitel
Publisher:
PEARSON
Database Systems: Design, Implementation, & Manag…
Database Systems: Design, Implementation, & Manag…
Computer Science
ISBN:
9781337627900
Author:
Carlos Coronel, Steven Morris
Publisher:
Cengage Learning
Programmable Logic Controllers
Programmable Logic Controllers
Computer Science
ISBN:
9780073373843
Author:
Frank D. Petruzella
Publisher:
McGraw-Hill Education