sizeof class with int , function, virtual function in C++?

Question

This is an online C++ test question, which has been done.

#include
using namespace std; 
class A
{

};
class B
{
int i; 
}; 

class C
{
void         


        

Answer 1

Size of int with padding and the virtual function =18 bytes

simple function bytes =1 virtual function =8

And you cant simply add all the bytes there is concept of padding check it out on google.

Declaring in different order change the size of class