Leetcode 9

//反转之后判断就行了
class Solution {
public:
    bool isPalindrome(int x) {
        int t = x;
        if(x < 0) return false;
        int sum = 0;
        while(x > 0){
            sum = sum*10 + x%10;
            x = x/10;
        }
        if(sum == t)
            return true;
        return false;
    }
};