58 lines
2.0 KiB
Python
58 lines
2.0 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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class Transform(object):
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"""Class to transform a given integer into a palindrome"""
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def __init__(self):
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super(Transform, self).__init__()
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def palindrome(self, int):
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'''
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Kind of the main function. Checks if input int is already a palindrome
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and trys calculation one if input integer is not already a palindrome.
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'''
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self.input_int = int
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if self.__is_palindrome(self.input_int):
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print('Integer {} is a palindrome'.format(self.input_int))
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return self.input_int
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else:
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print('Integer {} is not a palindrome'.format(self.input_int))
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print('Calculating the palindrome for input {}'.format(self.input_int))
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palindrome = self.__calculate_palindrome()
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return palindrome
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# The following methods are private. Signaled by the leading __
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def __is_palindrome(self, int_to_check):
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reversed = self.__reverese_int(int_to_check)
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if self.input_int == reversed:
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return True
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else:
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return False
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def __reverese_int(self, int_to_reverse):
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reversed = 0
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int_to_check = int_to_reverse
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while int_to_check > 0:
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reminder = int_to_check % 10
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reversed = (reversed * 10) + reminder
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int_to_check = int_to_check // 10
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return reversed
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def __calculate_palindrome(self):
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reversed = self.__reverese_int(self.input_int)
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self.input_int = self.input_int + reversed
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print('Possible palindrome is {}'.format(self.input_int))
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if self.__is_palindrome(self.input_int) is True:
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return self.input_int
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if self.__is_palindrome(self.input_int) is False:
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return self.__try_again()
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def __try_again(self):
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while self.input_int <= 1000000000:
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self.__calculate_palindrome()
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if self.input_int >= 1000000000:
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print('Palindrome to be calculated is to big. Abort!')
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return -1
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