Search Algorithms and Their Efficiency

The video tutorial explains how to find a book in a library using search algorithms. It introduces linear search, which checks each item sequentially, and binary search, which divides a sorted list to find the target more efficiently. The video compares the efficiency of these algorithms, highlighting that binary search is faster for larger, sorted lists.

What is the main challenge when looking for a book in a library where books are not labeled?

• Books are labeled but not in order.

• Books are sorted by genre.

• Books are in alphabetical order but not labeled.

• Books are not in alphabetical order.

Which search algorithm checks each item in order until the target is found?

• Binary search

• Depth-first search

• Linear search

• Quick search

For which type of list is a linear search most suitable?

• Large unsorted list

• Small sorted list

• Large sorted list

• Small unsorted list

What is the first step in a binary search algorithm?

• Check the last book

• Check the first book

• Check a random book

• Check the middle book

Why is binary search more efficient than linear search?

• It only works with unsorted lists.

• It checks every item in the list.

• It eliminates half of the remaining items in each step.

• It requires more checks to perform.

What is the execution count in the context of search algorithms?

• The number of books checked

• The number of books in the library

• The number of times a code segment runs

• The number of algorithms used

Which search algorithm is more efficient for a large sorted list?

• Linear search

• Binary search

• Depth-first search

• Breadth-first search

When should you use a linear search?

• When the list is small and unsorted

• When the list is large and unsorted

• When the list is small and sorted

• When the list is large and sorted

What is a key requirement for using a binary search?

• The list must be small

• The list must be sorted

• The list must be large

• The list must be unsorted

Which search method is recommended for a sorted list?

• Linear search

• Binary search

• Random search

• Sequential search