cpa_lab_5_3_10_(5)-C.cpp

#include <iostream>
#include <bits/stdc++.h>

using namespace std;

class FlightBooking {
    public:
        FlightBooking(int id, int capacity, int reserved);
        void printStatus();
        bool reserveSeats(int number_ob_seats);
        bool canceReservations(int number_ob_seats);
    private:
        int id;
        int capacity;
        int reserved;
};

FlightBooking::FlightBooking(int id, int capacity, int reserved)
{
    this->id = id;
    if(reserved < 0)
        this->reserved = 0;
    if(reserved * 100 / capacity > 105)
        this->reserved = 105 * capacity / 100;
    else
        this->reserved = reserved;
    this->capacity = capacity;
}

bool FlightBooking::reserveSeats(int number_ob_seats)
{
    if((reserved + number_ob_seats) * 100 / capacity > 105)
        return false;
    reserved += number_ob_seats;
    return true;
}

bool FlightBooking::canceReservations(int number_ob_seats)
{
    if(reserved < number_ob_seats)
        return false;

    reserved -= number_ob_seats;
    return true;
}
void FlightBooking::printStatus()
{
    cout << "Flight " << id << " : " << reserved << "\\" << capacity
        << " (" << reserved * 100 / capacity << "%) seats reserved" << endl << endl;
}
int main() {
    int reserved = 0,
    capacity = 0;
    cout << "Provide flight capacity: ";
    cin >> capacity;
    cout << "Provide number of reserved seats: ";
    cin >> reserved;
    FlightBooking booking(1, capacity, reserved);
    string command = "";
    cin.ignore();
    while (command != "quit")
    {
        booking.printStatus();
        cout << "What would you like to do?: ";
        getline(cin, command);
        if(command.find("add") != -1){
            if(!booking.reserveSeats(atoi(command.substr(command.find(" "),
                    command.find("\n") - command.find(" ")).c_str()))){
                cout << "Cannot perform this operation" << endl << endl;
            }
        }
        if(command.find("cancel") != -1){
            if(!booking.canceReservations(atoi(command.substr(command.find(" "),
                     command.find("\n") - command.find(" ")).c_str()))){
                cout << "Cannot perform this operation" << endl << endl;
            }
        }
    }
    return 0;
}