#include <iostream>
#include <vector>
#include <cmath>
using namespace std;
template<typename T>
void Swaper(T & a, T & b)
{
T temp = a;
a = b;
b = temp;
}
class Bryla
{
private:
public:
virtual double Objetosc() = 0;
};
class Kula : public Bryla
{
private:
int r;
public:
Kula(int r = 0)
{
this->r = r;
}
virtual double Objetosc()
{
return 3.14 * r * r * r * 4 / 3.0;
}
};
class Szescian : public Bryla
{
private:
int a;
public:
Szescian(int a = 0)
{
this->a = a;
}
virtual double Objetosc()
{
return a * a * a;
}
};
int main()
{
vector<Bryla *> vectorek;
vectorek.push_back(new Kula(5));
vectorek.push_back(new Szescian(6));
vectorek.push_back(new Kula(7));
vectorek.push_back(new Szescian(1));
int sum = 0;
for(int i = 0; i < vectorek.size(); ++i)
{
sum += vectorek[i]->Objetosc();
}
double average = static_cast<double> (sum) / vectorek.size();
cout << "srednia objetosc = " << average << endl;
int a = 5, b = 1;
Swaper(a,b);
cout << a << ", " << b;
return 0;
}
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