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Chapter 9: Problem 4

The _________ search algorithm requires that the array's contents be sorted.

Short Answer

Expert verified
Answer: Binary Search

Step by step solution

01

List common search algorithms

There are two common search algorithms - Linear Search and Binary Search.
02

Determine which algorithm requires a sorted array

Linear search works with both sorted and unsorted arrays, as it iterates through each element, checking if it matches the target value. On the other hand, Binary search specifically requires the input array to be sorted, as it repeatedly divides the array into two halves and searches for the target value in the more likely half based on the value's comparison with the middle element.
03

Answer the question

The search algorithm that requires the array's contents to be sorted is the Binary Search algorithm.

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Most popular questions from this chapter

A linear search will find the value it is looking for with just one comparison if that value is stored in the ___________ array element.

Assume an array of structures is in order by the customerID ficld of the record, where customer IDs go from 101 to 500 . A) Write the most efficient pseudocode algorithm you can to find the record with a specific customerlD if every single customer ID from 101 to 500 is used and the array has 400 elements. B) Write the most efficient pscudocode algorithm you can to find a record with a customer ID near the end of the IDs, say 494 , if not every single customer 10 in the range of 101 to 500 is used and the array size is only 300 .

Assume that empName and empID are two parallel arrays of size numBmp that hold employee data. Write a pseudocode algorithm that sorts the emp ID array in ascending ID number order (using any sort you wish), such that the two arrays remain parallel. That is, after sorting, for all indexes in the arrays, empName [index] must still be the name of the employee whose ID is in empID [Index].

The maximum number of comparisons that a binary search function will make when searching for a value in a 2,000 -clement array is ___________.

Why is selection sort more efficient than bubble sort on large arrays?
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