If you are a c# beginner or want to start learning the c# programming language, then this program will help you to understand the basics of c# programming. In this program, we are going to share the C# implementation of recursive Binary Search with the output.
Copy the below c# program and execute it in your Microsoft Visual Studio IDE (Integrated Development Environment ). At the end of this program, I have shared the screenshot of program output.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 | using System; class BinarySearchProgram { static int binarySearch(int []arr, int l, int r, int x) { if (r >= l) { int mid = l + (r - l)/2; if (arr[mid] == x) return mid; if (arr[mid] > x) return binarySearch(arr, l, mid-1, x); return binarySearch(arr, mid+1, r, x); } return -1; } public static void Main() { int []arr = {2, 3, 4, 10, 40}; int n = arr.Length; int x = 10; int result = binarySearch(arr, 0, n-1, x); if (result == -1){ Console.WriteLine("Element not present"); } else{ Console.WriteLine("Element found at index " + result); } } } |
Element is present at index 3
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