Subsets

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Problem

Return all possible subsets of the input array.

Input: nums = [1,2,3]
Output: [[],[1],[2],[1,2],[3],[1,3],[2,3],[1,2,3]]

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Input

nums = [1,2,3]

Expected

[[],[1],[2],[1,2],[3],[1,3],[2,3],[1,2,3]]

Your Output

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