Merge Three Sorted Arrays

Merge three sorted integer arrays and remove duplicates to output the final sorted array. Input Three lists list1, list2, list3, each sorted in ascending order and containing integers. Output A list representing the merged, sorted, and deduplicated result. Example Input: list1 = [1, 2] list2 = [1, 2, 2, 3] list3 = [2, 3, 3] Output: [1, 2, 3] Note It is guaranteed that each input list is sorted, and the result should also be in ascending order. Example Input [1, 2] [1, 2, 2, 3] [2, 3, 3]