In c$++,$ need help with compile files

Instructions

Design the class doctorType, inherited from the class personType, defined in Chapter $10,$ with an additional data member to store a doctor$$s specialty. Add appropriate constructors and member functions to initialize, access, and manipulate the data members.

Design the class billType with data members to store a patient$$s ID and a patient$$s hospital charges, such as pharmacy charges for medicine, doctor$$s fee, and room charges. Add appropriate constructors and member functions to initialize, access, and manipulate the data members. If no value is provided for a charge, it should default to $0.$

Design the class patientType, inherited from the class personType, defined in Chapter $10,$ with additional data members to store a patient$$s ID$,$ age, date of birth, attending physician$$s name, the date when the patient was admitted in the hospital, and the date when the patient was discharged from the hospital. $($Use the class dateType to store the date of birth, admit date, discharge date, and the class doctorType to store the attending physician$$s name.$)$ Add appropriate constructors and member functions to initialize, access, and manipulate the data members.

Be careful! The dateType object and the patientType object might accept different date formats.

Write a program to test your classes.

I have a problem regarding my billType and my patientType, it says it had a runtime error and couldn't compile files. here they are below, I can't put the $.$h files or the main.cpp because they are too long, but as long as it includes them it is ok$.$

billtypeimp.cpp

#include "billType.h$"$

billType::billType$($int ID$,$ double Med, double pDrF$,$ double room$\_$Charge$)$

$\{$

PtID $=$ ID;

MedChg $=$ Med;

DrF $=$ pDrF;

RmChg $=$ room$\_$Charge;

$\}$

void billType::setMedChg$($double Med$)$

$\{$

MedChg $=$ Med;

$\}$

double billType::getMedChg$()$ const

$\{$

return MedChg;

$\}$

void billType::setDrF$($double pDrF$)$

$\{$

DrF $=$ pDrF;

$\}$

double billType::getDrF$()$ const

$\{$

return DrF;

$\}$

void billType::setRmChg$($double pRmChg$)$

$\{$

RmChg $=$ pRmChg;

$\}$

double billType::getRmChg$()$ const

$\{$

return RmChg;

$\}$

patientypeimp.cpp

#include

#include "patientType.h$"$

patientType::patientType$($string First, string Last, int ID$,$ int PtAge, dateType DoB, dateType pAdmtDt, dateType pDcDt$,$ doctorType pDr$)$

$\{$

setName$($First$,$Last$)$;

PtID $=$ ID;

Age $=$ PtAge;

dtBth $=$ DoB;

admtDt $=$ pAdmtDt;

DcDt $=$ pDcDt;

Dr $=$ pDr;

$\}$

void patientType::setPtID$($int ID$)$

$\{$

PtID $=$ ID;

$\}$

void patientType::setAge$($int pAge$)$

$\{$

Age $=$ pAge;

$\}$

void patientType::setDoB$($dateType DoB$)$

$\{$

dtBth $=$ DoB;

$\}$

void patientType::setAdmtDt$($dateType pAdmtDt$)$

$\{$

admtDt $=$ pAdmtDt;

$\}$

void patientType::setDcDt$($dateType pDcDt$)$

$\{$

DcDt $=$ pDcDt;

$\}$

void patientType::setPcNm$($doctorType pDr$)$

$\{$

Dr $=$ pDr;

$\}$

int patientType::getPtID$()$

$\{$

return PtID;

$\}$

int patientType::getAge$()$

$\{$

return Age;

$\}$

dateType patientType::getDoB$()$

$\{$

return dtBth;

$\}$

dateType patientType::getAdmtDt$()$

$\{$

return admtDt;

$\}$

dateType patientType::getDcDt$()$

$\{$

return DcDt;

$\}$

string patientType::getPcNm$()$

$\{$

return Dr$.$getfName$().$append$(""+$ Dr$.$getlName$())$;

$\}$