A fancy search algorithm is shown below. Suppose a key k is present in the array a, which contains unique numbers. What is the running time of this algorithm in expectation?
A fancy search algorithm is shown below. Suppose a key k is present in the array a, which contains unique numbers. What is the running time of this algorithm in expectation?
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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A fancy search
Suppose a key k is present in the array a, which contains unique numbers. What is the running time of this algorithm in expectation?
![def fancy_search(a: List[int], k: int) -> int:
random_loc
pick a number between 0 and len(a) - 1 uniformly at random
while a[random_loc] != k:
random_loc
pick a number between 0 and len(a)
1 uniformly at random
%3D
return random_loc](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd3866ec9-8830-443f-8c09-ca4d85859680%2Fd1795e98-332d-4de7-9855-c68c0dd24e9c%2Fki9hdpi_processed.png&w=3840&q=75)
Transcribed Image Text:def fancy_search(a: List[int], k: int) -> int:
random_loc
pick a number between 0 and len(a) - 1 uniformly at random
while a[random_loc] != k:
random_loc
pick a number between 0 and len(a)
1 uniformly at random
%3D
return random_loc
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