gistfile1.md

Given a set of distinct integers, S, return all possible subsets.

Note:

• Use list as data structure
• Do NOT use itertools
• Sort your final results to get standard output (Not considered as the time complexity). For example sorted(result).

For example, If S = [1,2], a solution is:

[
  [],
  [1],
  [1,2],
  [2]
]