LeetCode: Palindrome Number

一点小失误，基本一次过吧

class Solution {
public:
    bool isPalindrome(int x) {
        // Start typing your C/C++ solution below
        // DO NOT write int main() function
        int mul = 1;
        if (x < 0) return false;
        while (x/10 >= mul) mul *= 10;
        while (x) {
            int left = x / mul;
            int right = x % 10;
            if (left != right) return false;
            x -= left*mul;
            x = (x - right) / 10;
            mul /= 100;
        }
        return true;
    }
};

 C#

public class Solution {
    public bool IsPalindrome(int x) {
        int mul = 1;
        if (x < 0) return false;
        while (x / 10 >= mul) mul *= 10;
        while (x > 0) {
            int left = x / mul;
            int right = x % 10;
            if (left != right) return false;
            x -= left * mul;
            x = (x - right) /10;
            mul /= 100;
        }
        return true;
    }
}