class Produs { private: string nume; long long pret, stoc; public: Produs(string n = "", long long p = 0, long long s = 0) : nume(n), pret(p), stoc(s) {} string getNume() { return nume; } long long getPret() { return pret; } long long getStoc() { return stoc; } bool scadeStoc(long long cant) { if (stoc < cant) return false; stoc -= cant; return true; } }; class Cos { private: vector> liniiInterne; public: void adaugaLinie(int idProdus, long long cantitate) { liniiInterne.push_back({idProdus, cantitate}); } vector>& linii() { return liniiInterne; } void goleste() { liniiInterne.clear(); } }; class Client { private: string nume; Cos cos; public: Client(string n = "") : nume(n) {} string getNume() { return nume; } Cos& getCos() { return cos; } }; class Magazin { private: vector produse; vector clienti; public: int adaugaProdus(string nume, long long pret, long long stoc) { produse.push_back(Produs(nume, pret, stoc)); return produse.size() - 1; } int adaugaClient(string nume) { clienti.push_back(Client(nume)); return clienti.size() - 1; } bool adaugaInCos(int idClient, int idProdus, long long cantitate) { if (idClient < 0 || idClient >= (int)clienti.size()) return false; if (idProdus < 0 || idProdus >= (int)produse.size()) return false; if (produse[idProdus].getStoc() < cantitate) return false; clienti[idClient].getCos().adaugaLinie(idProdus, cantitate); return true; } long long totalCos(int idClient) { if (idClient < 0 || idClient >= (int)clienti.size()) return 0; long long s = 0; for (auto& linie : clienti[idClient].getCos().linii()) s += produse[linie.first].getPret() * linie.second; return s; } bool finalizeazaComanda(int idClient) { if (idClient < 0 || idClient >= (int)clienti.size()) return false; auto& linii = clienti[idClient].getCos().linii(); for (auto& linie : linii) if (produse[linie.first].getStoc() < linie.second) return false; for (auto& linie : linii) produse[linie.first].scadeStoc(linie.second); clienti[idClient].getCos().goleste(); return true; } long long stocProdus(int idProdus) { if (idProdus < 0 || idProdus >= (int)produse.size()) return 0; return produse[idProdus].getStoc(); } };