Question-04-a, b, c, d

// Question - 04

#include <bits/stdc++.h>
using namespace std;

// ---( a )---
class person {
private:
    string firstName;
    string lastName;

public:
    person( string s1, string s2 ) {
        firstName = s1;
        lastName = s2;
    }

    void print() {
        // what to print?
        std::cout << firstName << ' ' << lastName << endl;
    }
    void setName( string s1, string s2 ) {
        firstName = s1;
        lastName = s2;
    }
    string getFirstName() {
        return firstName;
    }
    string gerLastName() {
        return lastName;
    }
};

// ---( b )---
class doctor : public person {
private:
    string doctorsSpeciality;

public:
    doctor( string s1, string s2, string s3 ) : person( s1, s2 ) {
        doctorsSpeciality = s3;
    }
    void setDoctorsSpeciality( string s ) {
        doctorsSpeciality = s;
    }
    void getDoctorsSpeciality() {
        return doctorsSpeciality;
    }
};

// ---( c )---
class bill {
private:
    int patientId;
    int pharmacyCharges;
    int doctorsFee;
    int roomCharges;

public:
    bill( int id, int phc, int df, int rc ) {
        patientId = id;
        pharmacyCharges = phc;
        doctorsFee = df;
        roomCharges = rc;
    }
    void setPatientId( int id ) {
        patientId = id;
    }
    void setPharmacyCharges( int charge ) {
        pharmacyCharges = charge;
    }
    void setDoctorsFee( int fee ) {
        doctorsFee = fee;
    }
    void setRoomCharges( int charge ) {
        roomCharges = charge;
    }
    int getPatientId() {
        return patientId;
    }
    int getPharmacyCharges() {
        return pharmacyCharges;
    }
    int getDoctorsFee() {
        return doctorsFee;
    }
    int getRoomCharges() {
        return roomCharges;
    }
};

// ---( d )---
class patient : public person {
private:
    int patientId;
    int age;

public:
    class date {
        int day;
        int month;
        int year;
        dateOfBirth( int dd, int mm, int yyyy ) {
            day = dd;
            month = mm;
            year = yyyy;
        }
        void setDay( int d ) {
            day = d;
        }
        void setMonth( int m ) {
            month = m;
        }
        void setYear( int y ) {
            year = y;
        }
        int getDay() {
            return day;
        }
        int getMonth() {
            return month;
        }
        int getYear() {
            return year;
        }
    };
    class doctor {
        string physiciansName;

        doctor( stirng s ) {
            physiciansName = s;
        }
        void setPhysiciansName( string s ) {
            physiciansName = s;
        }
        string getPhysiciansName() {
            return physiciansName;
        }
    };

private:
    doctor doc;
    date dateOfBirth;
    date admitDate;
    date dischargeDate;

public:
    patient( string s1, string s2, int id, int a ) : person( s1, s2 ) {
        patientId = id;
        age = a;
    }

    int getPatientId () {
        return patientId;
    }
    int getAge() {
        return age;
    }
    string getPhysiciansName() {
        return doc.getPhysiciansName();
    }
    string getDateOfBirth() {
        string dob = to_string( dateOfBirth.getDay() ) + "-" + to_string( dateOfBirth.getMonth() ) + "-" + to_string( dateOfBirth.getYear() );
        return dob;
    }
    string getAdmitDate() {
        string ad = to_string( admitDate.getDay() ) + "-" + to_string( admitDate.getMonth() ) + "-" + to_string( admitDate.getYear() );
        return ad;
    }
    string getDischargeDate() {
        string dd = to_string( dischargeDate.getDay() ) + "-" + to_string( dischargeDate.getMonth() ) + "-" + to_string( dischargeDate.getYear() );
        return dd;
    }

    void setPhysiciansName( stirng s ) {
        doc = new doctor( s );
    }
    void setDateOfBirth ( int d, int m, int y ) {
        dateOfBirth = new date( d, m, y );
    }
    void setAdmitDate ( int d, int m, int y ) {
        admitDate = new date( d, m, y );
    }
    void setDischargeDate ( int d, int m, int y ) {
        dischargeDate = new date( d, m, y );
    }
};