задача из файла

#include<string>
#include<iostream>
#include<algorithm>
using namespace std;
class Bike {
private:
    string manufacturer;
    string model;
    string size;
    string gender;
    static int count;
public:
    Bike(){
        ++count;
    }
    Bike(string manufacturer,string model,string size,string gender ) {
        this->manufacturer = manufacturer;
        this->model = model;
        this->size = size;
        this->gender = gender;
        ++count;
    }
    void setManufacturer(string manufacturer) {
        this->manufacturer = manufacturer;
    }
    void setModel(string model) {
        this->model = model;
    }
    void setSize(string size) {
        this->size = size;
    }
    void setGender(string gender) {
        this->gender = gender;
    }
    void getManufacturer() {
        cout << "Производитель: " << manufacturer << endl;
    }
    void getModel() {
        cout << "Модель: " << model << endl;
    }
    void getSize() {
        cout << "Размер: " << size << endl;
    }
    void getGender() {
        cout << "Пол: " << gender << endl;
    }
    void getCount() {
        cout << "Колличество: " << count << endl;
    }
    bool operator<(Bike a) {
        if ((size == "s"&& a.size == "m") || (size == "s"&& a.size == "l") || (size == "s"&& a.size == "xl")) {
            return 1;
        }
        else {
            if ((size == "m"&& a.size == "l") || (size == "m"&& a.size == "xl")) {
                return 1;
            }
            else {
                if (size == "l"&& a.size == "xl") {
                    return 1;
                }
            }
        }
        if (size == a.size) {
            if (manufacturer == a.manufacturer) {
                return(model < a.model);
            }
            else {
                return(manufacturer < a.manufacturer);
            }
        }

    }


};
int Bike::count = 0;

int main() {
    setlocale(LC_ALL, "russian");
    Bike stels("China","GF102","m","Male");
    Bike stinger("China","XZ22C","m","Female");
    Bike electra;
    electra.setManufacturer("Russia");
    electra.setModel("FS23");
    electra.setSize("xl");
    electra.setGender("Male");
    cout << "Stels:" << endl;
    stels.getManufacturer();
    stels.getModel();
    stels.getSize();
    stels.getGender();
    cout << "Stinger" << endl;
    stinger.getManufacturer();
    stinger.getModel();
    stinger.getSize();
    stinger.getGender();
    cout << "Electra" << endl;
    electra.getManufacturer();
    electra.getModel();
    electra.getSize();
    electra.getGender();
    cout << "Stels < Stinger ?" << endl;
    if (stels < stinger) {
        cout << "ДА"<<endl;
    }
    else {
        cout << "НЕТ"<<endl;
    }
    system("pause");
    return 0;
}