94% Python3 solution


  • 0
    A
    class Solution:
        def subsets(self, nums):
            """
            :type nums: List[int]
            :rtype: List[List[int]]
            """
            res = [nums]
            cur = [tuple(nums)]
            l = 0
            while l < len(nums):
                new_cur = set()
                for n in cur:
                    for i in range(len(n)):
                        new_cur.add(n[:i] + n[i+1:])
                cur = new_cur
                for n in cur:
                    res.append(n)
                l += 1
            return res
    

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