Given an integer array nums that may contain duplicates, return all possible subsets (the power set). The solution set must not contain duplicate subsets. Return the solution in any order.

return data # Already JSON-serializable, no transform needed return _transform_recursive (data, **kwargs) Or an explicit raw_messages parameter on the API methods. Would love to see this addressed ...

[15.1] What is the Big-O notation of an algorithm whose runtime doubles with each additional element in the input set? [15.3] An algorithm that checks each element of a list against every other ...