解法一(168 ms 98.54%):
class Solution(object):
def isPalindrome(self, x):
"""
:type x: int
:rtype: bool
"""
return str(x)==str(x)[::-1]
解法二(164ms 99.23%):
class Solution(object):
def isPalindrome(self, x):
"""
:type x: int
:rtype: bool
"""
if x<0:
return False
p,res=x,0
while p:
res=res*10+p%10
p//=10
return res==x