Binary Search Program in C using Recursion

Write a binary search program in C using recursion.

Binary Search is a searching algorithm that finds the value in a sorted array in O(logN) time complexity. In my previous post, I have discussed Binary search program in c using iterative approach. In this post, I am going to explain how to implement binary search program in c using recursion.

Binary Search Program, Algorithm & their Time Complexity

Binary Search Program, Algorithm & their Time Complexity. In this tutorial, You’ll learn about binary search algorithm, how it’s useful in searching and the time complexity of a binary search.

Binary Search

A Binary Search is used to search an element in a sorted array.  Binary search is also known as half-interval search or logarithmic search. It works by comparing a value (value needs to search) to the middle element an array. If a value matches with the middle element then the position is returned otherwise the algorithm repeats if the value is less than or greater than the middle element.

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A Binary search algorithm is efficient than the linear search algorithm. The time complexity of binary search is O(log(n)).