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binarySearch

Language/Type: Java binary search searching
Author: Robert Baxter

Suppose we are performing a binary search on a sorted array called numbers initialized as follows: 

// index:         0  1  2   3   4   5   6   7   8   9  10  11  12  13  14
int[] numbers = {-1, 0, 5, 11, 18, 29, 53, 57, 61, 64, 78, 82, 85, 89, 93};

// search for the value 86
int index = binarySearch(numbers, 86);

Write the indexes of the elements that would be examined by the binary search (the mid values in our algorithm's code) and write the value that would be returned from the search. Assume that we are using the binary search algorithm shown in lecture and section.

indexes examined
value returned

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