Auditoriski Isklucoci

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

class Discount
{
public:
    static float euro;
    static float dollar;
    virtual float discount_price()=0;
    virtual float price()=0;
    virtual void print_rule()=0;
};
float Discount::euro=61.7;
float Discount::dollar=44.5;

class Product
{
protected:
    char name[20];
    float price;
public:
    Product(const char *name="", const float price=0.0)
    {
        try
        {
            if(price < 0)
            {
                throw 1;
            }
            strcpy(this->name,name);
            this->price=price;
        }
        catch(int)
        {
            cout<<"Pogresno vnesena cena.Frlen e isklucok"<<endl;
            this->price=0.0;
        }
    }
    float getPrice()
    {
        return this->price;
    }
};
class Cosmetics: public Product, public Discount
{
private:
    int weight;
public:
    Cosmetics(char *name="", float price=0.0,int weight=0):Product(name,price)
    {
        this->weight=weight;
    }
    float discount_price()
    {
        if(5*Discount::euro < getPrice())
            return getPrice()*0.88;
        if(20*Discount::dollar < getPrice())
            return getPrice()*0.86;
        return getPrice();
    }
    float price()
    {
        return getPrice();
    }
    void print_rule()
    {
        cout<<"Popust na kozmetika"<<endl;
    }
};

class FoodProduct: public Product,public Discount
{
private:
    float callories;
public:
    FoodProduct(char *name="", float price=0.0,float callories=0.0):Product(name,price)
    {
        this->callories=callories;
    }
    float discount_price()
    {
        return getPrice();
    }
    float price()
    {
        return getPrice();
    }
    void print_rule()
    {
        cout<<"Nema popoust na hrana"<<endl;
    }
};

class Drinks:public Discount,public Product
{
private:
    bool alcoholic;
    char brand[100];
public:
    Drinks(char *name="", float price=0.0,char *brand="",bool alcoholic=false):Product(name,price)
    {
        this->alcoholic=alcoholic;
        strcpy(this->brand,brand);
    }
    float discount_price()
    {
        if(alcoholic)
        {
            if(20*Discount::euro < getPrice())
                return getPrice()*0.95;
        }
        else
        {
            if(strcmp(this->brand,"Coca-Cola")==0)
                return getPrice()*0.9;
        }
        return getPrice();
    }
    float price()
    {
        return getPrice();
    }
    void print_rule()
    {
        cout<<"Popust na pijaloci"<<endl;
    }
};
float total_discount(Discount **d,int n)
{
    float total=0.0;
    for(int i=0; i<n; i++)
    {
        total+=d[i]->discount_price();
        cout<<"Prvicna cena: "<<d[i]->price()<<endl;
        cout<<"So popust: "<<d[i]->discount_price()<<endl;
        d[i]->print_rule();
    }
    return total;
}
int main()
{
    int n=7;
    Discount **d=new Discount*[n];
    d[0]=new FoodProduct("leb",-30);
    d[1]=new Drinks("viski",1350,"Jack Daniel's", true);
    d[2]=new FoodProduct("sirenje",390,105);
    d[3]=new Drinks("votka",850,"Finlandia",true);
    d[4]=new Cosmetics("krema",72,100);
    d[5]=new Drinks("sok",50,"Coca-Cola",false);
    d[6]=new Cosmetics("parfem",3500,50);
    cout << "Vkupnata cena na site proizvodi e: "<<total_discount(d, n)<< endl;
         for(int i = 0; i < n; ++i) {
         delete d[i];
     }
         delete [] d;
         return 0;
}