4. Properties

#include <iostream>
#include <cstdlib>
#include <cstring>
using namespace std;

class Property
{
protected:
    char address[50];
    char city[50];
    float area;
public:
    Property(){}
    Property(char *a, char *c, float f)
    {
        strcpy(address,a);
        strcpy(city,c);
        area=f;
    }
    virtual float price()=0;
    friend ostream &operator<<(ostream &output, Property &rhs)
    {
        output<<"Address: "<<rhs.address<<endl;
        output<<"City: "<<rhs.city<<endl;
        output<<rhs.area<<" square meters"<<endl;
        return output;
    }
    bool operator< (Property &rhs)
    {
        return price()<rhs.price();
    }
};

class House:public Property
{
    int numFloors;
    float floorArea;
    bool hasRoof;
public:
    House(){}
    House(char *a, char *g, float kvad, int br_kat, float kvadrat_kat, bool potkrovje):Property(a,g,kvad)
    {
        numFloors=br_kat;
        floorArea=kvadrat_kat;
        hasRoof=potkrovje;
    }
    float price()
    {
        return numFloors*floorArea*700+((hasRoof)?floorArea*450:0);
    }
};

class Building:public Property
{
    float apartmentArea;
    int apartmentNumber;
public:
    Building(){}
    Building(char *a, char*g, float kvad, int br_st, float kv):Property(a,g,kvad)
    {
        apartmentNumber=br_st;
        apartmentArea=kv;
    }
    float price()
    {
        return apartmentArea*800*apartmentNumber+apartmentNumber*500;
    }
};

void mostExpensiveProperty(Property **arr, int n)
{
    float highestPrice=arr[0]->price();
    int id=0;
    for(int i=1;i<n;i++)
    {
        if(arr[i]->price()>highestPrice)
        {
            highestPrice=arr[i]->price();
            id=i;
        }
    }
    cout<<*arr[id];
}

int main() {
    int n;
    int tip_nedviznost;

    cin >> n;

    Property **ned = new Property*[n];
    char adresa[100];
    char grad[30] ;
    float kvadratura;
    for(int i = 0; i < n; ++i) {
        cin >> tip_nedviznost>> adresa >> grad >> kvadratura;
        if(tip_nedviznost==1) {
            int br_kat;
            float kvadrat_kat;
            bool potkrovje;
            cin >> br_kat >> kvadrat_kat >> potkrovje;
            ned[i] = new House(adresa, grad, kvadratura, br_kat, kvadrat_kat, potkrovje);
        }
        else if(tip_nedviznost == 2) {
            int br_stanovi;
            float kvadrat_na_stan;
            cin >> br_stanovi >> kvadrat_na_stan;

            ned[i] = new Building(adresa, grad, kvadratura, br_stanovi, kvadrat_na_stan);
        }
    }

    cout<<"== PROPERTIES =="<<endl;
    for (int i=0; i<n; i++){
        cout<<*(ned[i])<<"Price: "<< ned[i]->price()<<endl;
    }

    cout << "=== MOST EXPENSIVE PROPERTY ===" << endl;
    mostExpensiveProperty(ned, n);

    return 0;
}