//STARTSOLUTION
#include <string>
#include <sstream>
//ENDSOLUTION
#include <iostream>
#include <vector>

using namespace std;
//STARTSOLUTION
class Ship
{
public:
    Ship(string const& n, string const& p): name{n}, prefix{p} {}
    virtual ~Ship() = default;

    virtual string to_string() const
    {
	stringstream ss{};
	ss << prefix << ": " << name;
	return ss.str();
    }

    virtual int worthiness() const {}
    //virtual int worthiness() const = 0; 

    
private:
    string name;
    string prefix;    
};

class Frigate: public Ship
{
public:
    Frigate(string const& n, string const& p, unsigned short int const g): Ship{n, p}, guns{g} {}

    string to_string() const override
    {
	stringstream ss{};
	ss << Ship::to_string() << " - " << guns << " guns";
	return ss.str();
    }

    int worthiness() const override
    {
	return guns * 2;
    }
    
private:
    unsigned short int guns;
};

class Transport: public Ship
{
public:
    Transport( string const& n, string const& p, unsigned int const c): Ship{n, p}, cargo{c} {}

    int worthiness() const override
    {
	return cargo + 3;
    }
    
private:
    unsigned int cargo;
};
//ENDSOLUTION

int main()
{
//STARTSOLUTION
    // vector<Ship*> fleet{};	
    // fleet.push_back(new Transport{"Pegasus", "HMS", 197});
    // fleet.push_back(new Transport{"Rotarius", "HMS", 232});
    // fleet.push_back(new Frigate{"Santa Rosa", "HFR", 100});
    // fleet.push_back(new Frigate{"Daedalus", "HMS", 150});

    // cout << "Fleet:\n\n";
    // for( auto sp: fleet )
    // {
    // 	cout << sp -> to_string() << " | Worthiness: " << sp -> worthiness() << '\n';
    // 	delete sp;
    // }
    // cout.flush();

//ENDSOLUTION
    //given kod
    vector<Ship> fleet{};
    fleet.push_back(Transport{"Pegasus", "HMS", 197});
    fleet.push_back(Transport{"Rotarius", "HMS", 232});
    fleet.push_back(Frigate{"Santa Rosa", "HFR", 100});
    fleet.push_back(Frigate{"Daedalus", "HMS", 150});

    cout << "Fleet:\n\n";
    for( auto s: fleet )
    {
    	cout << s.to_string() << " | Worthiness: " << s.worthiness() << '\n';
    }
    cout.flush();
}