Input : arr[] = {5, 6, 7, 8, 9, 10, 1, 2, 3}; key = 3 Output : Found at index 8 Input : arr[] = {5, 6, 7, 8, 9, 10, 1, 2, 3}; key = 30 Output : Not found Input : arr[] = {30, 40, 50, 10, 20} key = 10 Output : Found at index 3