Solution for the "9. Palindrome Number" problem from LeetCode

leetcode_9_palindrome_number.rs

impl Solution {
    pub fn is_palindrome(x: i32) -> bool {
        if x < 0 {
            return false;
        }

        let mut x_copy = x;
        let mut reverse: i32 = 0;
        while x_copy > 0 {
            reverse = (reverse * 10) + (x_copy % 10);
            x_copy = x_copy / 10;
        }

        reverse == x 
    }
}