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; } }