• java

class Solution {
    public boolean isPalindrome(int x) {
        if(x<0 || (x!=0 && x%10 == 0))
            return false;
        int res = 0;
        while(x>res){
            res = res * 10 + x % 10;
            x /= 10;
        }
        return (x == res || x == res/10);
    }
}