c++ program to check if number is pallindromic or not

class Solution {
public:
    bool isPalindrome(int x) {
      long long int y=x, r=x;
        long long int t=0;
        while(y!=0){
            long long int d=y%10;
            y=y/10;
            t=t*10+d;
        }
        if(t==r && r>=0)
            return true;
        else
            return false;
    }
};