python - subset of distinct nums

  • 0
    class Solution(object):
        def do_subsets(self, nums, prefix, answer):
            for i,num in enumerate(nums):
                self.do_subsets(nums[i+1:] , prefix + [num], answer)
            return answer
        def subsets(self, nums):
            :type nums: List[int]
            :rtype: List[List[int]]
            # sort to avoid adding same subset more than once
            return self.do_subsets(sorted(nums), [], [])

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