Leetcode - Self Dividing Numbers Solution
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Leetcode - Self Dividing Numbers Solution

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.

Solution in Python

class Solution:
    @staticmethod
    def isSelfDividing(num):
        for i in str(num):
            i = int(i)
            if i==0 or num%i!=0:
                return False
        else:
            return True
    def selfDividingNumbers(self, left: int, right: int) -> List[int]:
        arr = []
        for i in range(left,right+1):
            if self.isSelfDividing(i):
                arr.append(i)
        return arr

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