原题链接：728. 自除数

solution:

class Solution {
public:
    bool check(int x)
    {
        int num = x;
        bool res = true;
        while(num){
            int temp = num%10;
            if(temp==0 || x%temp!=0){
                res=false;
                break;
            }
            num/=10;
        }
        return res;
    }
    vector<int> selfDividingNumbers(int left, int right) {
        vector<int> res;
        for(int i=left;i<=right;i++){
            if(check(i)) res.push_back(i); 
        }
        return res;
    }
};