Concept explainers
Explanation of Solution
Modified Recursive binary search
The modified recursive binary search method is given below:
//Define the binarySearch() method
public static int binarySearch(int[ ] data, int target, int low, int high)
{
//Check "low" is greater than "high"
if (low > high)
//Return the -1
return −1;
//Execute the else part
else
{
/*Add "low" and "high" and the result is divided by 2 and then store the result element to "mid". */
int mid = (low + high) / 2;
//Check "target" is equal to "data[mid]"
if (target == data[mid])
//Return the index of search element
return mid;
//Execute the else part
else if (target < data[mid])
//Call the binarySearch() method
return binarySearch(data, target, low, mid − 1);
//Execute the else part
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Chapter 5 Solutions
Data Structures and Algorithms in Java
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