Create Rotated_sorted_array.java

DSA_Codesheet/Java/Rotated_sorted_array.java

@@ -0,0 +1,60 @@
+import java.util.Scanner;
+
+public class RotatedArraySearch {
+    public static int searchInRotatedArray(int[] nums, int target) {
+        int left = 0;
+        int right = nums.length - 1;
+
+        while (left <= right) {
+            int mid = left + (right - left) / 2;
+
+            if (nums[mid] == target) {
+                return mid;
+            } else if (nums[left] <= nums[mid]) {
+                if (nums[left] <= target && target < nums[mid]) {
+                    right = mid - 1;
+                } else {
+                    left = mid + 1;
+                }
+            } else {
+                if (nums[mid] < target && target <= nums[right]) {
+                    left = mid + 1;
+                } else {
+                    right = mid - 1;
+                }
+            }
+        }
+
+        return -1;
+    }
+
+    public static void main(String[] args) {
+        Scanner scanner = new Scanner(System.in);
+
+        // Input: Size of the rotated sorted array
+        System.out.print("Enter the size of the rotated sorted array: ");
+        int size = scanner.nextInt();
+
+        int[] nums = new int[size];
+
+        // Input: Elements of the rotated sorted array
+        System.out.print("Enter the elements of the rotated sorted array: ");
+        for (int i = 0; i < size; i++) {
+            nums[i] = scanner.nextInt();
+        }
+
+        // Input: Target element to search
+        System.out.print("Enter the target element to search: ");
+        int target = scanner.nextInt();
+
+        // Find the index of the target element using the searchInRotatedArray function
+        int index = searchInRotatedArray(nums, target);
+
+        // Output: Print the result
+        if (index != -1) {
+            System.out.println("Element " + target + " found at index " + index);
+        } else {
+            System.out.println("Element " + target + " not found in the array");
+        }
+    }
+}