Reverse And Add/신재동

~cpp 
import unittest

class ReverseAndAdder:
    def reverse(self, number):
        numberStr = str(number)
        reverseStr = ''
        for i in range(len(numberStr)):
            reverseStr += numberStr[len(numberStr) - i - 1]
        return int(reverseStr)

    def isPalindrome(self, number):
        numberStr = str(number)
        for i in range(len(numberStr)):
            if(numberStr[i] != numberStr[len(numberStr) - i - 1]):
                return False
        return True

    def reverseAndAdd(self, number):
        count = 0
        for i in range(1000):
            number = number + self.reverse(number)
            count += 1
            if(self.isPalindrome(number)):
                break
        else:
            print 'No reverse and add'
            return None
        return (count, number)
        
class ReverseAndAdderTestCase(unittest.TestCase):
    def testReverse(self):
        raa = ReverseAndAdder()
        self.assertEquals(1234, raa.reverse(4321))
        self.assertEquals(12321, raa.reverse(12321))

    def testIsPalindrome(self):
        raa = ReverseAndAdder()
        self.assertEquals(False, raa.isPalindrome(4321))
        self.assertEquals(True, raa.isPalindrome(12321))
        self.assertEquals(True, raa.isPalindrome(1221))

    def testReverseAndAdd(self):
        raa = ReverseAndAdder()
        self.assertEquals((4, 9339), raa.reverseAndAdd(195))
        self.assertEquals((5, 45254), raa.reverseAndAdd(265))
        self.assertEquals((3, 6666), raa.reverseAndAdd(750))
        
if __name__ == '__main__':
    #unittest.main()
    raa = ReverseAndAdder()
    result = raa.reverseAndAdd(int(input()))
    if(result != None):
        print str(result[0]) + ' ' + str(result[1])

~cpp 
>>> n=4321
>>> int(str(n)[::-1]) #python 2.3이상
1234
>>> int(''.join(reversed(str(d)))) #python 2.4이상
1234

~cpp 
>>> def rev(d):	return int(str(d)[::-1])

>>> def revAndAdd(d):
	c=0
	while True:
		rd=rev(d)
		if d==rd:break
		d+=rd
		c+=1
	return c,d

>>> revAndAdd(195)
(4, 9339)