#include <iostream>
#include <vector>
 
struct my_struct {
    int i;
 
    my_struct()
        : my_struct(0)
    {
    }
 
    my_struct(int i)
        : i(i)
    {   
        std::cout << "constructed: " << i << std::endl;
    }
 
    my_struct(my_struct&& obj) noexcept
        : i(obj.i)
    {   
        std::cout << "moved: " << i << std::endl;
    }
 
    my_struct(const my_struct& obj) noexcept
        : i(obj.i)
    {   
        std::cout << "copied: " << i << std::endl;
    }
 
    my_struct& operator =(const my_struct& obj) {
        i = obj.i;
        std::cout << "assigned: " << i << std::endl;
        return *this;
    }
};
 
int main() {
    std::vector<my_struct> v{1,2,3};
    std::cout << "prepare to resize" << std::endl;
    v.resize(32, my_struct(9));
}
 

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