I have this classes below and I want to save a HomePC to a vector, what's the method that I can do that, and how can I print the first or the second element from the vector.

```

class PC
{
public:
    PC(string in_operatingSystem,int in_ramSlots,int in_pcieSlots,int in_totalRamSlots, int in_gbPerRam, int in_cpu, int in_ssd, int in_cost);

    virtual void Print() = 0;
    virtual void Upgrade() = 0;
protected:
    string operatingSystem;
    int ramSlots,pcieSlots,totalRamSlots,gbPerRam;
    int cpu,ssd;
    int cost;
};

class HomePC: public PC
{
public:
    HomePC(string in_operatingSystem,int in_ramSlots,int in_pcieSlots,int in_totalRamSlots, int in_gbPerRam, int in_cpu, int in_ssd, int in_cost, string in_model);

    void Print();
    void Upgrade();
private:
    string model;
};

```