Description
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.
Examples
Input:
x = 121Output:
trueExplanation:
121 reads as 121 from left to right and from right to left.
Input:
x = -121Output:
falseExplanation:
From left to right, it reads -121. From right to left, it becomes 121-. Therefore it is not a palindrome.
Input:
x = 10Output:
falseExplanation:
Reads 01 from right to left. Therefore it is not a palindrome.
Input:
x = 0Output:
trueExplanation:
Single digit numbers are always palindromes.
Constraints
- •
-2³¹ ≤ x ≤ 2³¹ - 1