discussion
BartC
bc at freeuk.com
Fri Oct 1 09:46:39 EDT 2010
"Geo_subodh" <gcontsubodh at gmail.com> wrote in message
news:31a08825-bb72-4e9f-8710-a39fe2bc9216 at u31g2000pru.googlegroups.com...
> please send me the simple python code that uses input number greater
> than3 digits(>3 digits) and checks whether the number is palindrome
> or not.
The following works without using strings (although leading zeros are
ignored, so that 01210 returns False):
def fpalindrome(n):
if n<0: return False
if n<10: return True
digits=1
a=n
while a>=10:
digits=digits+1
a=a//10
lastdigit=n%10
firstdigit=n//(10**(digits-1))
if firstdigit!=lastdigit: return False
if digits==2: return True
middledigits=n//10-firstdigit*(10**(digits-2))
return fpalindrome(middledigits)
print fpalindrome(12345678987654321)
--
Bartc
More information about the Python-list
mailing list