9. Palindrome Number
Given an integer x, return true if x is a palindrome, and false otherwise.
Example 1:
Input: x = 121
Output: true
Explanation: 121 reads as 121 from left to right and from right to left.
Example 2:
Input: x = -121
Output: false
Explanation: From left to right, it reads -121. From right to left, it becomes 121-. Therefore it is not a palindrome.
Example 3:
Input: x = 10
Output: false
Explanation: Reads 01 from right to left. Therefore it is not a palindrome.
Constraints:
-2\(^{31}\) <= x <= 2\(^{31}\) - 1
Solution:
class Solution:
def isPalindrome(self, x):
"""
:type x: int
:rtype: bool
"""
x_str = str(x)
if x_str == x_str[::-1]:
return True
else:
return False