题目描述：

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

代码：

bool Solution::isPalindrome(int x)
{
    int a = x;
    int b = 0;
    while(a > 0)
    {
        b = b * 10 + a % 10;
        a = a % 10;
    }
    return b == x;
}

LeetCode：Palindrome Number