Given a sorted array arr[] of n elements, write a function to search a given element x in arr[]. A simple approach is to do linear search. The time complexity of above algorithm is O n. Another approach to perform the same task is using Binary Search. Binary Search: Search a sorted array by repeatedly dividing the search interval in half.

## C++ Program to Perform Inorder Recursive Traversal of a Given Binary Tree

## Binary Search - GeeksforGeeks

The binary search algorithm is an algorithm that is based on compare and split mechanism. The binary Search algorithm is also known as half-interval search, logarithmic search, or binary chop. The binary search algorithm, search the position of the target value in a sorted array. It compares the target value with the middle element of the array. If the element is equal to the target element then the algorithm returns the index of the found element. And if they are not equal, the searching algorithm uses a half section of that array, Based on the comparison of the value, the algorithm uses either of the first-half when the value is less than the middle and the second half when the value is greater than the middle. And does the same for the next array half.

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This blog talks about the Binary Search Implementation using both the iterative and the recursive approaches in C. Today we will discuss the Binary Search Algorithm. It is one of the Divide and conquer algorithms types, where in each step, it halves the number of elements it has to search, making the average time complexity to O log n.

In this article, you'll learn and get code about how to search an element from given array using binary search technique. But before going through the program, if you are not aware of how binary search works, then I recommend you to go through the step by step working of Binary search. This is the simplest program of binary search. Also the sorting code block is not included in this program.

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