9_PalindromeNumber徒手尝试#4(Done)

public class Solution {
public boolean isPalindrome(int x) {
if(x < 0) return false;
if(x < 10) return true;
if(x % 10 == 0) return false;

int v = x % 10;
x /= 10;
while(x > v) {
v = v * 10 + x % 10;
x /= 10;
}
if(v > x) {
v /= 10;
}
return x == v;
}
}