04 May 9. Palindrome Number
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 palindrome while 123 is not. Example 1:Input: x = 121 Output: true Example 2:Input: x = -121 Output: false Explanation: From left to right, it reads -121. From right to left, it becomes 121-....