Consider this function: boolean freaky (n) { // PRE: n is a positive integer // POST: ??? if n < 2: x = 2 return false while x < n { if n mod x == 0 return false x = x + 1 } return true } (i) Find the postcondition of this function Find the best possible big-oh bound for its complexity What can we say about big-theta complexity for this function?

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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Consider this function:
boolean freaky(n) {
// PRE: n is a positive integer
// POST: ???
if n < 2:
     return false
x = 2
while x < n {
     if n mod x == 0
          return false
     x = x + 1
}
return true
}
(i) Find the postcondition of this function
(ii) Find the best possible big-oh bound for its complexity
(iii) What can we say about big-theta
complexity for this function?

Consider this function:
boolean freaky (n) {
// PRE: n is a positive integer
// POST: ???
if n < 2:
x = 2
return false
while x < n {
if n mod x == 0
return false
x = x + 1
}
return true
}
(i)
Find the postcondition of this function
Find the best possible big-oh bound for its complexity
What can we say about big-theta
complexity for this function?
Transcribed Image Text:Consider this function: boolean freaky (n) { // PRE: n is a positive integer // POST: ??? if n < 2: x = 2 return false while x < n { if n mod x == 0 return false x = x + 1 } return true } (i) Find the postcondition of this function Find the best possible big-oh bound for its complexity What can we say about big-theta complexity for this function?
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