9. Palindrome Number，palindromenumber

9. Palindrome Number，palindromenumber

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

 1 class Solution {
 2 public:
 3     bool isPalindrome(int x) {
 4         if(x < 0){
 5             return false;
 6         }
 7         if(x == 0){
 8             return true;
 9         }
10         
11         int temp = x;
12         int y = 0;
13         int j = 0;
14         while(x)
15         {   
16             // y = y*10 + x%10;
17             j = x%10;
18             x = x/10;
19             y = y*10 + j;
20             
21             
22         }
23         
24         if(y == temp){
25             return true;
26         }else{
27             return false;
28         }
29     }
30 };