I noticed some solutions' space complexities include the output space. Then, there are other solutions' space complexities that don't include the output space. Can we standardize problems such that they include BOTH space complexities - i.e. one including output space and one excluding output space? E.g. the space complexities of this solution are all the same - which includes the output space https://leetcode.com/problems/subsets/solution/. But i've noticed other problems state that they don't include the output space.