Palindrome Number

Palindrome Number

Determine whether an integer is a palindrome. Do this without extra space.

 

public class Solution {

    public boolean isPalindrome(int x) {

    // http://blog.csdn.net/linhuanmars/article/details/21145231

        if(x<0) return false;

        int div = 1;

        while(x/div>=10){

            div *=10;

        }

        while(x>0){

            if(x/div!=x%10)

                return false;

            x = (x%div)/10;

            div/=100;

        }

        return true;

    }

}