carloscn / carloscn/structstudy

所有子集 (leetcode-78)

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Description

### [题目描述](https://leetcode.cn/problems/subsets/)

给你一个整数数组 nums ,数组中的元素 互不相同 。返回该数组所有可能的子集(幂集)。
解集 不能 包含重复的子集。你可以按 任意顺序 返回解集。

示例 1:
```
输入:nums = [1,2,3]
输出:[[],[1],[2],[1,2],[3],[1,3],[2,3],[1,2,3]]
```

示例 2:
```
输入:nums = [0]
输出:[[],[0]]
```

提示:

* `1 <= nums.length <= 10`
* `-10 <= nums[i] <= 10`
* `nums`中的所有元素 互不相同

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