(a) We call binSearch as follows: binSearch(A, 0, 7, 22) Draw the box trace (stack frame) diagram of the call as we did in class. Label each box with the correct recursive level and include in your diagram how the return value gets back to the call.

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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2. In class we proved that the binSearch algorithms was
correct.
bool binSearch (A, 1o, hi, el)
if lo> hi then
else
return false
mid - (lothi) // 2
if el A[mid) then
return true
else
if el A[id] then
else
return binSearch (A, 1o, mid-1, el)
return binSearch (A, mid-1, hi, el)
Consider the array A = [2, 3, 5, 8, 11, 14, 19, 22] where A
is indexed 0..7
(a) We call binSearch as follows: binSearch(A, 0, 7, 22)
Draw the box trace (stack frame) diagram of the call as we
did in class. Label each box with the correct recursive level
and include in your diagram how the return value gets back
to the call.
Transcribed Image Text:2. In class we proved that the binSearch algorithms was correct. bool binSearch (A, 1o, hi, el) if lo> hi then else return false mid - (lothi) // 2 if el A[mid) then return true else if el A[id] then else return binSearch (A, 1o, mid-1, el) return binSearch (A, mid-1, hi, el) Consider the array A = [2, 3, 5, 8, 11, 14, 19, 22] where A is indexed 0..7 (a) We call binSearch as follows: binSearch(A, 0, 7, 22) Draw the box trace (stack frame) diagram of the call as we did in class. Label each box with the correct recursive level and include in your diagram how the return value gets back to the call.
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