Igroteka OOP

#include <iostream>
#include <cstring>
#include <cmath>
using namespace std;
class Igrachka {
public:
    virtual float getVolumen() = 0;
    virtual float getMasa() = 0;
    virtual float getPlostina() = 0;
    virtual ~Igrachka() {}
};
class Forma{
protected:
    char boja[100];
    int gustina;
public:
    Forma(const char*boja=" ",int gustina=0)
    {
        strcpy(this->boja,boja);
        this->gustina=gustina;
    }
};
class Kocka:public Igrachka,public Forma
{
private:
    int a,b,c;//a=visina, b=sirina c=dlabocina
public:
    Kocka(const char*boja=" ",int gustina=0,int a=0,int b=0,int c=0):Forma(boja,gustina)
    {
        this->a=a;
        this->b=b;
        this->c=c;
    }
    float getPlostina()
    {
        return 2*(a*b+b*c+c*a);
    }
    float getVolumen()
    {
        return a*b*c;
    }
    float getMasa()
    {
        return getVolumen()*gustina;
    }
};
class Topka:public Igrachka,public Forma
{
private:
    int rad;
public:
    Topka(const char*boja=" ",int gustina=0,int rad=0):Forma(boja,gustina)
    {
        this->rad=rad;
    }
    float getPlostina()
    {
        return (float) 4*3.14*rad*rad;
    }
    float getVolumen()
    {
        return (4.0/3) * 3.14 * rad * rad * rad;
    }
    float getMasa()
    {
        return getVolumen()*gustina;
    }
};
void proverka(float masa_petra,Igrachka **kupce,int n)
{
    float vk=0;
    for(int i=0;i<n;i++)
    {
        vk+=kupce[i]->getMasa();
    }
    if(vk<masa_petra)
        cout<<"NE"<<endl;
    else
        cout<<"DA"<<endl;
}
float maxVolume(float volume_petra,Igrachka **kupce,int n)
{
    float max=-9999.999;
    for(int i=0;i<n;i++)
    {
        if(max<kupce[i]->getVolumen())
            max=kupce[i]->getVolumen();
    }
    return max;
}
float minPlostina(float plostina_petra,Igrachka **kupce,int n)
{
    float min=9999.999;
    for(int i=0;i<n;i++)
    {
        if(min>kupce[i]->getPlostina())
            min=kupce[i]->getPlostina();
    }
    return min;
}
int main(){
    int n;
    int control;
    int a,b,c,rad,gustina;
    char boja[30];
    cin>>n;
    Igrachka **kupche=new Igrachka*[n];
    for(int i=0;i<n;i++)
    {
        cin>>control;
        if(control==1)
        {
            cin>>boja>>gustina>>rad;
            kupche[i]=new Topka(boja,gustina,rad);
        }
        if(control==2)
        {
            cin>>boja>>gustina>>a>>b>>c;
            kupche[i]=new Kocka(boja,gustina,a,b,c);
        }
    }
        cin>>boja>>gustina>>a>>b>>c;
        Kocka petra(boja,gustina,a,b,c);
        proverka(petra.getMasa(),kupche,n);
        cout<<"Razlikata e: "<<abs(petra.getVolumen()-maxVolume(petra.getVolumen(),kupche,n))<<endl;
        cout<<"Razlikata e: "<<abs(petra.getPlostina()-minPlostina(petra.getPlostina(),kupche,n))<<endl;
        for(int i=0;i<n;i++)
        {
            delete kupche[i];
        }
        delete [] kupche;


    return 0;
}