Self Dividing Numbers using Python

Introduction

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 == 0128 % 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

# The method where all the logic lives def selfDividingNumbers(left, right): # An internal function def self_dividing(n): # loop through each `n` for d in str(n): # if it's the first item, or there's no remainder if d == '0' or n % int(d) > 0: # False return False # True return True # Create an `output` to push to out = [] # loop through all items, from the left to the right, inclusive for n in range(left, right + 1): # if we get a True if self_dividing(n): # push to the output out.append(n) #Equals filter(self_dividing, range(left, right+1)) return out
Code language: Python (python)
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