Given an integer `x`, return `true` if `x` is a palindrome, and `false` otherwise.
An integer is a **palindrome** when it reads the same backward as forward.
**Follow up:** Could you solve it without converting the integer to a string?
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.