12 lines
285 B
Python
12 lines
285 B
Python
def subsets(self, nums):
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res = []
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def backtracking(temp, start):
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res.append(temp[:])
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for i in range(start, len(nums)):
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temp.append(nums[i])
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backtracking(temp, i + 1)
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temp.pop()
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backtracking([], 0)
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return res
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