Revise paste Untitled

#include <iostream>
using namespace std;

class Recenica {
private:
    string * niza;
    int n;
    
public:
    Recenica() {
        niza = new string[1];
        niza[0] = "default";
        n = 1;
    }
    Recenica(string * _niza, int _n) {
        n = _n;
        niza = new string[n];
        for(int i = 0; i < n; i++) {
            niza[i] = _niza[i];
        }
    }
    
    Recenica(const Recenica & tmp) {
        n = tmp.n;
        niza = new string[n];
        for(int i = 0; i < n; i++) {
            niza[i] = tmp.niza[i];
        }
    }
    
    Recenica & operator = (Recenica tmp) {
        n = tmp.n;
        niza = new string[n];
        for(int i = 0; i < n; i++) {
            niza[i] = tmp.niza[i];
        }
        return *this;
    }
    ~Recenica() {
        delete [] niza;
    }
  
    friend ostream & operator << (ostream & stream, Recenica & tmp);
    
    bool operator > (Recenica tmp) {
        if(n > tmp.n) {
            return true;
        }
        else {
            return false;
        }
    }
    
    Recenica & operator -= (string zbor) {
        string tmp_niza[n];
        for(int i = 0; i < n; i++) {
            tmp_niza[i] = niza[i];
        }
        
        n++;
        niza = new string[n];
        niza[0] = zbor;
        for(int i = 0; i < n - 1; i++) {
            niza[i + 1] = tmp_niza[i];
        }
        
        return *this;
    }
    
    Recenica & operator -- () {
        n--;
        return *this;
    }
    
    string & operator [] (int i) {
        return niza[i];
    }
};

ostream & operator << (ostream & stream, Recenica & tmp) {
    for(int i = 0; i < tmp.n; i++) {
        stream << tmp.niza[i] << " ";
    }
    stream << endl;
    return stream;
}

int main()
{
    string zborovi[6]={"sakam","da","polozam","psp","vo","juni"}; Recenica r1=Recenica();
    Recenica r2=Recenica(zborovi,6); Recenica r3;
    r3=r2;
    cout<<r2;
    cout<<r3;
    r2-="Jas";
    cout<<r2;
    --r2;
    cout<<r2;
    cout<<(r2>r1);
    r1[0]="Nov";
    cout<<r1[0];
    return 0;
}