Determine whether an integer is a palindrome. Do this without extra space.
long int reverse(int x) {
long int ret = ;
while(x>){
ret = ret* + x%;
x /= ;
}
return ret;
}
bool isPalindrome(int x) {
if(x<) return false; //consider case of negative number
if(x==reverse(x)) return true;
else return false;
}