leetcode palindrome problem showing runtime error

class Solution {
public:
    bool isPalindrome(int x) {
        int num, pal=0;
        num=x;
        if(num<0){
          return false;
    }
    while(num!=0){ 
        int b =num%10;    
        pal=(pal*10)+b;  
        num=num/10;       

}
cout<<pal<<endl;
if(x==pal){
  return true;    //pal=3952  a=2593
}
else{
  return false;
}
}
};

this is my solution of my leetcode problem and when I submit it, it shows,

Runtime Error
Line 11: Char 21: runtime error: signed integer overflow: 998765432 * 10 cannot be represented in type 'int' (solution.cpp)
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior prog_joined.cpp:20:21

>Solution :

The error is occurring because during program execution, one of your integers (in this case it will be either num or pal) is being set to a value greater than its range (-2,147,483,648 <= v < 2,147,483,648, where v is the value you’re trying to store). This leads to a ‘wrap-around’ effect where the variable goes from a really large value to the smallest representable value.

To fix this, you should use a larger data type, like long long to represent num and pal to prevent the overflow.

For example:

class Solution {
public:
    bool isPalindrome(int x) {
        long long num, pal = 0;
        num = x;
        if (num < 0) {
            return false;
        }
        while (num != 0) { 
            int b = num % 10;    
            pal = (pal * 10) + b;  
            num = num / 10;       
        }
        if (x == pal) {
            return true;
        }
        else {
            return false;
        }
    }
};

Also, the cout statement is not needed on LeetCode.