Podcast
Questions and Answers
What is the worst-case time complexity of linear search?
What is the worst-case time complexity of linear search?
- $O(rac{n}{2})$
- $O(rac{n^2}{2})$
- $O(n)$ (correct)
- $O(n^2)$
In linear search, how many comparisons are made on average in the best case scenario?
In linear search, how many comparisons are made on average in the best case scenario?
- $2n$
- $n+1$ (correct)
- $n-1$
- $rac{n}{2}$
What is the purpose of a sentinel in linear search?
What is the purpose of a sentinel in linear search?
- To reorder the list
- To reduce the number of comparisons per iteration (correct)
- To terminate the search successfully
- To increase the time complexity
Why is linear search rarely practical compared to other search algorithms?
Why is linear search rarely practical compared to other search algorithms?
What happens if the linear search algorithm reaches the end of the list without finding a match?
What happens if the linear search algorithm reaches the end of the list without finding a match?
What is the average case number of comparisons for linear search with a list of n elements?
What is the average case number of comparisons for linear search with a list of n elements?
What is the purpose of a sentinel in linear search?
What is the purpose of a sentinel in linear search?
What is the worst-case time complexity of linear search?
What is the worst-case time complexity of linear search?
How many comparisons does linear search make at most, when searching for an element within a list?
How many comparisons does linear search make at most, when searching for an element within a list?
Why is linear search rarely practical compared to other search algorithms?
Why is linear search rarely practical compared to other search algorithms?
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