he following code:

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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need to choose some correct answers. 

Consider the following code:
def g(1st):
n = len(1st)
for i in range(n):
for j in range(i+1,n):
if 1st[i] == 1st[j]:
return True
return False
Which of these is a Big Theta bound on the worst case running time of g(lst), where n is the length
of the list?
Transcribed Image Text:Consider the following code: def g(1st): n = len(1st) for i in range(n): for j in range(i+1,n): if 1st[i] == 1st[j]: return True return False Which of these is a Big Theta bound on the worst case running time of g(lst), where n is the length of the list?
n
n log n
n(n-1)/2
n^2
n^n
There is no big Theta bound for the worst case of this code.
Transcribed Image Text:n n log n n(n-1)/2 n^2 n^n There is no big Theta bound for the worst case of this code.
Expert Solution
Worst case complexity

The worst case time complexity is defined as the maximum time algorithm will take. It is represented by big theta. It is also called as the upper bound for an algorithm.

Computer Science homework question answer, step 1, image 1

From the above graph we can say, g(n) = O(f(n))

as g(n)<= c(f(n) after point n0.

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