> For the complete documentation index, see [llms.txt](https://dfine.gitbook.io/leetcode/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://dfine.gitbook.io/leetcode/728.self_dividing_numbers.md).

# 728.Self Dividing Numbers

**728.Self Dividing Numbers**

难度:Easy

> 自除数 是指可以被它包含的每一位数除尽的数。

例如，128 是一个自除数，因为 128 % 1 == 0，128 % 2 == 0，128 % 8 == 0。 还有，自除数不允许包含 0 。 给定上边界和下边界数字，输出一个列表，列表的元素是边界（含边界）内所有的自除数。

```
示例 1：
输入： 
上边界left = 1, 下边界right = 22
输出： [1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 15, 22]
注意：
每个输入参数的边界满足 1 <= left <= right <= 10000。
```

代码如下:

```
class Solution {
public:
    vector<int> selfDividingNumbers(int left, int right) {
        vector<int>res;
        for(int i=left;i<=right;i++)
            if(isdvd(i))
                res.push_back(i);
        return res;
    }
    bool isdvd(int a)
    {
        if(a<10) return true;
        int t=a;
        while(t)
        {
            int tmp=t%10;
            if(!tmp) return false;
            if(a%tmp) return false;
            t /=10;
        }
        return true;
    }
};
```


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