Question

I’m trying to write a quick solve for Kaprekar number’s to show a friend of mine how easy it is to implement something like this in Python. I know how to do all the steps except for iterating through the squared number as a string. For example 45 is a Kaprekar number because

45 ** 2 = 2025 and 20 + 25 = 45

What I’m trying to write is code that would take the result of 45 ** 2 = 2025 and let me iterate over the combinations like

[‘2’, ‘025’]

[’20’, ’25’]

[‘202’, ‘5’]

Answer 1

>>> s = '2025'
>>> for i in range(1, len(s)):
...   print s[:i], s[i:]
... 
2 025
20 25
202 5