[leetcode-728-Self Dividing Numbers]

Posted 2020-10-15 hellowOOOrld

A self-dividing number is a number that is divisible by every digit it contains.

For example, 128 is a self-dividing number because 128 % 1 == 0, 128 % 2 == 0, and 128 % 8 == 0.

Also, a self-dividing number is not allowed to contain the digit zero.

Given a lower and upper number bound, output a list of every possible self dividing number, including the bounds if possible.

Example 1:

Input: 
left = 1, right = 22
Output: [1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 15, 22]

 

Note:

• The boundaries of each input argument are 1 <= left <= right <= 10000.

思路：

暴力，模拟一遍。。。

vector<int> selfDividingNumbers(int left, int right)
{
    vector<int> ret;
    for (int i = left; i <= right; i++)
    {
        int j = i;
        bool yes = true;
        while (j)
        {
            int d = j % 10;
            if (d == 0 || i%d == 0)yes = false;
            j /= 10;
        }
        if (yes)ret.push_back(i);
    }
    return ret;
}