Given an integer x
, return true if x
is palindrome integer.
An integer is a palindrome when it reads the same backward as forward. For example, 121
is a palindrome while 123
is not.
Input: x = 121
Output: true
Explanation: 121 reads as 121 from left to right and from right to left.
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.
Input: x = 10
Output: false
Explanation: Reads 01 from right to left. Therefore it is not a palindrome.
- -231 <= x <= 231 - 1