Stip

1.
---------------
#include <iostream>
#include <cstring>
using namespace std;

class Vraboten
{
private:
    char ime[20];
    char prezime[20];
    int plata;
    char pol [10];
public:
    Vraboten () {}
    Vraboten (char *i, char *pr, char *pol, int pl)
    {
        strcpy(ime,i);
        strcpy(prezime,pr);
        strcpy(this->pol,pol);
        plata = pl;
    }
    friend ostream& operator<< (ostream &x,const Vraboten &v)
    {
        x << v.ime <<" "<< v.prezime <<" "<< v.pol;
        x <<" "<< v.plata << endl;
        return x;
    }
    void setIme (char *ime)
    {
        strcpy(this->ime,ime);
    }
    void setPrezime (char *pr)
    {
        strcpy(prezime,pr);
    }
    void setPlata (int k)
    {
        plata = k;
    }
    void setPol (char *p)
    {
        strcpy(pol,p);
    }
    char *getPrezime ()
    {
        return prezime;
    }
    char *getIme ()
    {
        return ime;
    }
    char *getPol ()
    {
        return pol;
    }
    int getPlata ()
    {
        return plata;
    }
};

int main ()
{
    int n, suma = 0, k = 0;
    cout << "Vnesete broj na vraboteni"<<endl;
    cin >> n;
    Vraboten firma [n];
    cout << "Vnesete ime, prezime, pol, plata na sekoj rabotnik "<<endl;
    for (int i=0; i<n; i++)
    {
        char ime[20];
        char prezime[20];
        int plata;
        char pol [10];
        cin >> ime >> prezime >> pol >> plata;
        firma [i] = Vraboten (ime,prezime,pol,plata);
        suma += firma [i].getPlata();
        if(strcmp(firma[i].getPol(),"maski") == 0) k++;
    }
    cout<<"Vo firmata ima " << k << " vraboten/i od maski pol"<<endl;
    cout<<"Prosecnata plata vo firmata e " << (float)suma/n <<endl;
    int flag = 1;
    for(int i=0; i<n; i++)
    {
        if(strcmp(firma[i].getPrezime(),"Mitrevski")==0)
        {
            if(flag)
            {
                cout<<"Vraboteni so prezime Mitrevski: "<<endl;
                flag = 0;
            }
            cout<<firma[i];
        }
    }
    if(flag) cout<<"Nema vraboteni so prezime Mitrevski"<<endl;

    return 0;
}
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2.
---------------
#include <iostream>
#include <cstring>
#include <cmath>
using namespace std;

class Vektor
{
private:
    int x;
    int y;
    int z;
public:
    Vektor (int a = 0, int b = 0, int c = 0)
    {
        x = a;
        y = b;
        z = c;
    }
    Vektor (const Vektor &v)
    {
        x = v.x;
        y = v.y;
        z = v.z;
    }
    double Dolzina ()
    {
        return sqrt(x*x + y*y + z*z);
    }
};

int main ()
{
    return 0;
}
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3.
-----------------------
#include <iostream>
#include <cstring>
using namespace std;

class Karakter
{
private:
    char *niza;
public:
    Karakter ()
    {
        niza = new char [0];
    }
    Karakter (char *niza)
    {
        this->niza = new char[strlen(niza)+1];
        strcpy(this->niza,niza);
    }
    Karakter& operator = (const Karakter &k)
    {
        if(this != &k)
        {
            delete [] niza;
            niza = new char[strlen(k.niza)+1];
            strcpy(niza,k.niza);
        }
        return *this;
    }
    ~Karakter ()
    {
        delete [] niza;
    }
    char operator [] (int i)
    {
        return niza[i];
    }
    int getDolzina ()
    {
        return strlen(niza);
    }
};

int main ()
{
    Karakter niza[10];
    niza[0]=Karakter("FINKI");
    cout<<niza[0].getDolzina()<<endl;
    return 0;
}
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4.
#include <iostream>
#include <cstring>
using namespace std;

class Proizvod{
private:
    char ime[20];
    int sif_pr;
    int kolicina;
    int cena;
public:
    Proizvod(){}
    Proizvod(char ime[], int sif_pr, int kolicina, int cena){
        strcpy(this->ime,ime);
        this->sif_pr=sif_pr;
        this->kolicina=kolicina;
        this->cena=cena;
    }
    void setIme(char ime[]){
        strcpy(this->ime,ime);
    }
    void setSifra(int sif_pr){
        this->sif_pr=sif_pr;
    }
    void setKolicina(int kolicina){
        this->kolicina=kolicina;
    }
    void setCena(int cena){
        this->cena=cena;
    }
    char *getIme(){
        return ime;
    }
    int getSifra(){
        return sif_pr;
    }
    int getKolicina(){
        return kolicina;
    }
    int getCena(){
        return cena;
    }
    friend ostream &operator<<(ostream &out, Proizvod &p){
        out<<p.ime<<" "<<p.sif_pr<<" "<<p.kolicina<<" "<<p.cena<<endl;
        return out;
    }
    ~Proizvod(){}
};

float prosecnaCena(Proizvod Prodavnica[], int n){
    float prosek=0.00;
    for(int i=0;i<n;i++){
        prosek+=Prodavnica[i].getCena();
    }
    return prosek/n;
}

int main(){
    Proizvod Prodavnica[100];
    int n, sum=0;
    cout<<"Vnesete broj na prodavnici"<<endl;
    cin>>n;
    cout<<"Vnesete gi karakteristikite na proizvodite\n"<<endl;
    for(int i=0;i<n;i++){
        char ime[20];
        int sifra;
        int kolicina;
        int cena;
        cin>>ime>>sifra>>kolicina>>cena;
        Prodavnica[i]=Proizvod(ime,sifra,kolicina,cena);
        if(Prodavnica[i].getSifra()==123){
            sum++;
        }
    }
    cout<<"Prosecnata cena e: "<<prosecnaCena(Prodavnica, n);
    for(int i=0;i<n;i++){
        {
            for (int j =0 ;j<n;j++)
            {
if(Prodavnica[i].getCena()>Prodavnica[i].getCena()){
            Proizvod temp=Prodavnica[j];
            Prodavnica[j]=Prodavnica[j+1];
            Prodavnica[j+1]=temp;
        }

            }
    }
    for(int i=0;i<n;i++){
        cout<<Prodavnica[i];
    }
    return 0;
}
}

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7. pod A
8. pod B
10. pod A
11.Promenlivata bpub ne mozhi da se pristapi bidejki se naogja vo Parrent klasata a se povikuva vo Child. (samo obratnoto), isto taka vo klasata PrivDerived nemashe zagrada ( }; ) pa i to kako greshka :D