Automobile (Working) - 30 March

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

class Automobile {
private:
    char *brand;
    int *regNum;
    int maxSpeed;
    void intcpy(int dest[], const int source[], const int len){
        for(int i = 0; i < len; i++){
            dest[i] = source[i];
        }
    }
public:
    Automobile(){ brand = NULL; regNum = NULL; }
    ~Automobile(){ delete [] brand; delete [] regNum; }
    Automobile(const Automobile &a){
        //delete [] brand; delete [] regNum;
        brand = new char[strlen(a.brand)+1];
        strcpy(brand, a.brand);
        regNum = new int[5];
        intcpy(regNum, a.regNum, 5);
        maxSpeed = a.maxSpeed;
    }
    Automobile(char *b, int *r, int m){
        //delete [] brand; delete [] regNum;
        brand = new char[strlen(b)+1];
        strcpy(brand, b);
        regNum = new int[5];
        intcpy(regNum, r, 5);
        maxSpeed = m;
    }
    Automobile &operator = (const Automobile &a){
        if(this == &a) {return *this;}
        delete [] brand; delete [] regNum;
        brand = new char[strlen(a.brand)+1];
        strcpy(brand, a.brand);
        regNum = new int[5];
        intcpy(regNum, a.regNum, 5);
        maxSpeed = a.maxSpeed;
        return *this;
    }
    bool operator == (const Automobile &rhs){
         for(int i = 0; i < 5; ++i){
            if(regNum[i] != rhs.regNum[i]){ return false; }
         }
         return true;
    }
    friend ostream & operator << (ostream &out, const Automobile &a){
        out << "Marka\t" << a.brand << "\t" << "Registracija[ ";
        for (int i = 0; i < 5; ++i) {
            out  << a.regNum[i] << " ";
        }   out << "]" << endl;
        return out;
    }

    const int getMaxSpeed(){ return maxSpeed; }
};

class RentACar{
private:
    char name[100];
    Automobile *autos;
    int len;
    void autocpy(Automobile dest[], const Automobile source[], int len){
        for(int i = 0; i < len; i++){
            dest[i] = source[i];
        }
    }
public:
    RentACar() { autos = NULL; }
    ~RentACar() { delete [] autos; }
    RentACar(const char *n) {
        strcpy(name, n);
        autos = NULL;
        len = 0;
    }
    RentACar(const RentACar &r){
        //delete [] autos;
        strcpy(name, r.name);
        autos = new Automobile[r.len + 1];
        autocpy(autos, r.autos, r.len);
        len = r.len;
    }
    RentACar &operator = (const RentACar &r){
        if(this == &r) { return *this; }
        delete [] autos;
        strcpy(name, r.name);
        autos = new Automobile[r.len + 1];
        autocpy(autos, r.autos, r.len);
        len = r.len;
        return *this;
    }
    RentACar & operator += (const Automobile &a){
        Automobile *old = autos;
        autos = new Automobile[len+1];
        autocpy(autos, old, len);
        autos[len++] = a;
        delete [] old;
        return *this;
    }
    RentACar & operator -= (const Automobile &a){
        for(int i = 0; i < len; i++){
            if(autos[i] == a){
                Automobile *old = autos;
                autos = new Automobile[len-1];
                for(int j = 0, k = 0; j < len; j++){
                    if(!(old[j] == a)){
                        autos[k++] = old[j];
                    }
                }
                delete [] old;
                break;
            }
        }
        return *this;
    }

    void printWithSpeedOver(int max) {
        cout << name << endl;
        for (int i = 0; i < len; i++) {
            if (autos[i].getMaxSpeed() > max) {
                cout << autos[i];
            }
        }
    }
};

int main() {
    RentACar agencija("FINKI-Car");

    int n;
    cin >> n;
    for (int i = 0; i < n; i++) {
        char marka[100];
        int regisracija[5];
        int maximumBrzina;

        cin >> marka;

        for (int i = 0; i < 5; i++)
            cin >> regisracija[i];

        cin >> maximumBrzina;

        Automobile nov = Automobile(marka, regisracija, maximumBrzina);

        //dodavanje na avtomobil
        agencija += nov;

    }
    //se cita grehsniot avtmobil, za koj shto avtmobilot so ista registracija treba da se izbrishe
    char marka[100];
    int regisracija[5];
    int maximumBrzina;
    cin >> marka;
    for (int i = 0; i < 5; i++)
        cin >> regisracija[i];
    cin >> maximumBrzina;

    Automobile greshka = Automobile(marka, regisracija, maximumBrzina);

    //brishenje na avtomobil
    agencija -= greshka;
    agencija.printWithSpeedOver(150);
    return 0;
}