10 Questions
What is the worst-case time complexity of linear search?
$O(n)$
In linear search, how many comparisons are made on average in the best case scenario?
$n+1$
What is the purpose of a sentinel in linear search?
To reduce the number of comparisons per iteration
Why is linear search rarely practical compared to other search algorithms?
Other algorithms allow significantly faster searching for all but short lists
What happens if the linear search algorithm reaches the end of the list without finding a match?
The search terminates unsuccessfully
What is the average case number of comparisons for linear search with a list of n elements?
$n+1/2$
What is the purpose of a sentinel in linear search?
To reduce the number of comparisons made per iteration
What is the worst-case time complexity of linear search?
$O(n)$
How many comparisons does linear search make at most, when searching for an element within a list?
$n$
Why is linear search rarely practical compared to other search algorithms?
Other algorithms allow significantly faster searching for all but short lists
Test your knowledge on linear search, a method used in computer science for finding an element within a list by sequentially checking each element. Learn about its time complexity and average case scenarios.
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