Звучници

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


// vashiot kod ovde
class Speaker {
    protected:
    float moknost;
    char model[101];
    bool pojacalo;
    float cena;

    public:
    static int DDV;

    Speaker(float m, char *mo, bool p, float c)
    {

        moknost=m;
        strcpy(model,mo);
        pojacalo=p;
        cena=c;

    }

    char *getModel(){return model;}
    bool getPojacalo(){return pojacalo;}


    static void smeniDDV(int ddv){Speaker::DDV=ddv;}
    static void vkupnoDDV(Speaker** s, int n){
        int sum=0;
        int vkupnoddv=0;

        for(int i=0;i<n;i++)
        {
        sum+=s[i]->presmetajCena();
        }

        vkupnoddv=sum*DDV/100;

    cout<<"Vkupna cena: "<<sum<<endl;
    cout<<"Vkupno DDV: "<<vkupnoddv<<endl;



    }

    virtual float presmetajCena(){return 0;}

    friend ostream &operator<<(ostream &out, Speaker &s)
    {
        out<<s.model<<" ";
        if (s.pojacalo==true)
            out<<"ima pojachalo ";
        else
            out<<"nema pojachalo ";

        out<<s.presmetajCena();

        return out;


    }

    bool operator>(Speaker &s)
    {
        return (presmetajCena()>s.presmetajCena());


    }



};
int Speaker::DDV=18;

class TowerSpeaker : public Speaker{
    private:
    bool stolb;

    public:
    TowerSpeaker(float m, char *mo, bool p, float c, bool s):Speaker(m,mo,p,c)
    {
    stolb=s;
    }

    float presmetajCena(){
        int a=0,b=0;

        if(pojacalo){a=cena*0.1;}
        if(stolb){b=cena*0.05;}
        return cena+a+b;


    }


};

class MonitorSpeaker: public Speaker{
    private:
    bool namena;

    public:
    MonitorSpeaker(float m, char *mo, bool p, float c, bool n):Speaker(m,mo,p,c)
    {
    namena = n;
    }

    float presmetajCena(){
        int a=0,b=0;

        if(pojacalo){a=cena*0.1;}
        if(namena){b=cena*0.15;}
        return cena+a+b;


    }


};

void lowestPrice(Speaker** s, int n){

    int min= s[0]->presmetajCena();
    int index;

    for(int i=0;i<n;i++)
        if(min>s[i]->presmetajCena())
    {
        min=s[i]->presmetajCena();
        index=i;

    }

    cout<<s[index]->getModel();
    if(s[index]->getPojacalo())
        cout<<" ima pojachalo ";
    else
        cout<<" nema pojachalo ";

    cout<<s[index]->presmetajCena();





}




// zabraneto e menuvanje na main funkcijata


int main() {
    int testCase;
    cin >> testCase;
    float power;
    char model[100];
    bool amp;
    float price;
    bool fullSemi;
    if(testCase == 1) {
        cout << "===== TESTING CONSTRUCTORS ======" << endl;
        cin >> power;
        cin >> model;
        cin >> amp;
        cin >> price;
        cin >> fullSemi;
        TowerSpeaker ts(power, model, amp, price, fullSemi);
        cout << ts << endl;
        cin >> power;
        cin >> model;
        cin >> amp;
        cin >> price;
        cin >> fullSemi;
        MonitorSpeaker ms(power, model, amp, price, fullSemi);
        cout << ms << endl;

    } else if(testCase == 2) {
        cout << "===== TESTING LOWEST PRICE ======" << endl;
        int n;
        cin >> n;
        Speaker** speakers = new Speaker*[n];
        for(int i = 0; i < n; ++i) {
            cin >> power;
            cin >> model;
            cin >> amp;
            cin >> price;
            cin >> fullSemi;
            if(i % 2 == 1)
                speakers[i] = new TowerSpeaker(power, model, amp, price, fullSemi);
            else
                speakers[i] = new MonitorSpeaker(power, model, amp, price, fullSemi);
        }

        lowestPrice(speakers, n);
        for(int i = 0; i < n; ++i) {
            delete speakers[i];
        }
        delete [] speakers;
    } else if(testCase == 3) {
        cout << "===== TESTING DDV STATIC ======" << endl;
        int n;
        cin >> n;
        Speaker** speakers = new Speaker*[n];
        for(int i = 0; i < n; ++i) {
            cin >> power;
            cin >> model;
            cin >> amp;
            cin >> price;
            cin >> fullSemi;
            if(i % 2 == 1)
                speakers[i] = new TowerSpeaker(power, model, amp, price, fullSemi);
            else
                speakers[i] = new MonitorSpeaker(power, model, amp, price, fullSemi);
        }
        Speaker::vkupnoDDV(speakers, n);
        int ddv;
        cin >> ddv;
        Speaker::smeniDDV(ddv);
        Speaker::vkupnoDDV(speakers, n);
        for(int i = 0; i < n; ++i) {
            delete speakers[i];
        }
        delete [] speakers;
    }

}