Проблема с программой содержащей классы

Вот программа
#include <conio.h>
#include <iostream.h>
class school
{
int *HisGrade, *HisShool;
public:
void base();
// void ident();
void age();
void subjects();
virtual void function(),ident();
~school();
char *f,*name, *otch;
//private:
//int *HisGrade, *HisShool;

};


school::~school()
{
delete f;
delete name;
delete otch;
delete HisGrade;
delete HisShool;
}

void school::subjects()
{
cout<<"\nЋб*®ў*лҐ ЇаҐ¤¬Ґвл, Ё§гз Ґ¬лҐ * ¤ **®¬ нв ЇҐ:\n";
cout<<"¬ ⥬ вЁЄ , агббЄЁ©, «ЁвҐа вга , Ё*. п§;";
if(*HisGrade>=5) cout<<" Ёбв®аЁп; ";
if(*HisGrade>=7) cout<<" дЁ§ЁЄ , еЁ¬Ёп, ЎЁ®«®ЈЁп";
else
cout<<" ЇаЁа®¤®ўҐ¤Ґ*ЁҐ";
cout<<'\n';
}

void school::age()
{
cout<<"\n…Ј® ў®§а бв ®в "<<(*HisGrade+5)<<" ¤® "<<(*HisGrade+7)<<" «Ґв\n\n";

}


void school::ident()
{ int i;

HisGrade=new int;
HisShool=new int;
f=new char[20];
name=new char[20];
otch=new char[20];
cout<<"\n‚ўҐ¤ЁвҐ д ¬Ё«Ёо\n";
cin>>f;
cout<<"‚ўҐ¤ЁвҐ Ё¬п\n";
cin>>name;
cout<<"‚ўҐ¤ЁвҐ ®взҐбвў®\n";
cin>>otch;
cout<<"\n‚ўҐ¤ЁвҐ Є« бб, ў Є®в®а®¬ ®* гзЁвбп\n";
cin>>*HisGrade;
cout<<"\n‚ўҐ¤ЁвҐ *®¬Ґа иЄ®«л, ў Є®в®а®© ®* гзЁвбп\n";
cin>>*HisShool;

int ident=1;

while(ident==1)
{
cout<<"\n choose the function:\n-1- ‚뢥бвЁ ¤ **лҐ ® 祫®ўҐЄҐ\n-2- ЏаЁ¬Ґа*®Ґ ®Їа¤Ґ«Ґ*ЁҐ ў®§а бв 祫®ўҐЄ \n-3- ‚뢥бвЁ ЇаҐ¤¬Ґвл, Є®в®алҐ ®* ¤®«¦Ґ* Ё§гз вм";
cout<<"\n-4- ЏҐаҐўҐб⨠祫®ўҐЄ Ё§ а §ап¤ иЄ®«м*ЁЄ ў а §ап¤ бв㤥*в\n";
cin>>i;
clrscr();
switch(i)
{
case 1 :
base();
cout<<"\nЄ« бб, ў Є®в®а®¬ ®* гзЁвбп\n";
cout<<*HisGrade;
cout<<"\n*®¬Ґа иЄ®«л, ў Є®в®а®© ®* гзЁвбп\n";
cout<<*HisShool;
break;
case 2 : age();
break;
case 3 : subjects();
break;
case 4 : ident=0;
break;
default: cout<<"\nWrong number of tne function\n";
}
}
}

void school::function()
{
cout<<"ЏаЁ¬Ґа*л© ў®§а бв தЁвҐ«Ґ© г иЄ®«м*ЁЄ "<<(*HisGrade+27)<<"«Ґв (Ј®¤ )";
};

void school::base()
{ cout<<"\n\n„ **лҐ ®Ў ®ЎкҐЄвҐ:\n";
cout<<f<<" "<<name<<" "<<otch<<"\n";
}

class student: public school
{
public:
~student();
virtual void function()
{
cout<<"ЏаЁ¬Ґа*л© ў®§а бв தЁвҐ«Ґ© г cв㤥*в "<<(*curs+40)<<"«Ґв (Ј®¤ )";
}
void nasledovanie(school *);
void ageStudent();
void stipendia();
void ident2(school *);
int *curs;
private:
int *reiting;
};

void student::nasledovanie(school *t)
{ f=t->f;
name=t->name;
otch=t->otch;
}

void student::ident2(school *t)
{
nasledovanie(t);

reiting=new int;
curs=new int;
cout<<"‚ўҐ¤ЁвҐ *®ўлҐ ¤ **лҐ:\n";
cout<<"ђҐ©вЁ*Ј\n";
cin>>*reiting;
cout<<"Љгаб\n";
cin>>*curs;

int i, ident=1;
while(ident==1)
{
textattr(2);
cout<<"\n choose the function:\n-1- ‚뢥бвЁ ¤ **лҐ ® 祫®ўҐЄҐ\n-2- ЏаЁ¬Ґа*®Ґ ®Їа¤Ґ«Ґ*ЁҐ ў®§а бв 祫®ўҐЄ \n-3- ‚뢥бвЁ а §¬Ґа ҐЈ® бвЁЇҐ*¤ЁЁ";
cout<<"\n-4- ЏҐаҐўҐб⨠祫®ўҐЄ Ё§ а §ап¤ бв㤥*в ў а §ап¤ бЇЁа *в\n";

cin>>i;
clrscr();
textattr(5);
switch(i)
{
case 1 :{ base(); cout<<"\nђҐ©вЁ*Ј\n"<<*reiting<<"\nЉгаб\n"<<*curs;
break; }
case 2 :{ ageStudent(); break; }
case 3 :{ stipendia(); break; }
case 4 :{ ident=0; break; }

default: cout<<"\nWrong number of tne function\n";
}
}
}

void student:: ageStudent()
{ cout<<"‘в㤥*вг ®Є®«®"<<(*curs+20)<<" «Ґв(Ј®¤ )";
}
void student:: stipendia()
{ if(*reiting>=7)
{ if(*reiting>=8)
{ if(*reiting>=9)
{ if(*reiting>=10)
{ if(*reiting>=11)
{ if(*reiting>=12)
cout<<" ®Є®«® 139\n";
else {cout<<" ®Є®«® 139\n"; }
}
else cout<<"®Є®«® 139\n";
}
else cout<<"®Є®«® 139\n";
}
else cout<<"®Є®«® 139\n";
}
else cout<<"®Є®«® 139\n";
}
else cout<<"‘вЁЇҐ*¤ЁЁ г бв㤥*в *Ґв\n";

}


student:: ~student()
{
delete curs;
delete reiting;
}


class aspirant:public student{
public:
virtual void function();
void ident3(student *);
void ageAspirant();
void zarplata();
};
void aspirant:: zarplata()
{ cout<<"‡ аЇ« в ЇаЁ¬Ґа*® б®бв ў«пҐв "<<*curs<<"000";
}
void aspirant:: ident3(student *t)
{ nasledovanie(t);
curs=new int;
cout<<"‚ўҐ¤ЁвҐ *®ўлҐ ¤ **лҐ:\n";
cout<<"‘в ¦ а Ў®вл";
cin>>*curs;
int i, ident=1;
while(ident==1)
{
textattr(2);
cout<<"\n choose the function:\n-1- ‚뢥бвЁ ¤ **лҐ ® 祫®ўҐЄҐ\n-2- ЏаЁ¬Ґа*®Ґ ®Їа¤Ґ«Ґ*ЁҐ ў®§а бв 祫®ўҐЄ \n-3- ‚뢥бвЁ а §¬Ґа ҐЈ® § аЇ« вл(ЇаЁ¬Ґа*®)";
cout<<"\n-4- ЏҐаҐўҐб⨠祫®ўҐЄ Ё§ а §ап¤ бЇЁа *в ў а §ап¤ ЇаҐЇ®¤ ў ⥫м\n";

cin>>i;
clrscr();
textattr(8);
switch(i)
{
case 1 :{ base(); cout<<"‘в ¦ а Ў®вл"<<*curs;
break; }
case 2 :{ ageAspirant(); break; }
case 3 :{ zarplata(); break; }
case 4 :{ ident=0; break; }

default: cout<<"\nWrong number of tne function\n";
}
}
}

void aspirant:: ageAspirant()
{ cout<<"‚®§а бв нв®Ј® 祫®ўҐЄ ЇаЁ¬Ґа*® "<<(*curs+21)<<"+-5«Ґв";
}
void aspirant:: function()
{ cout<<"ЏаЁ¬Ґа*л© ў®§а бв தЁвҐ«Ґ© г бЇЁа *в "<<(*curs+50)<<"«Ґв (Ј®¤ )";
}

class prepod: public aspirant{
public:
virtual void function();
void ident4(aspirant *);
};

void prepod::function()
{
cout<<"ЏаЁ¬Ґа*л© ў®§а бв தЁвҐ«Ґ© 㠯९®¤ ў ⥫п"<<(*curs+55)<<"«Ґв (Ј®¤ )";
}

void prepod:: ident4(aspirant *t)
{ nasledovanie(t);
cout<<"‚ўҐ¤ЁвҐ *®ўлҐ ¤ **лҐ:\n";
cout<<"‘в ¦ а Ў®вл ЇаҐЇ®¤ ў ⥫Ґ¬";
cin>>*curs;
int i, ident=1;
while(ident==1)
{
textattr(2);
cout<<"\n choose the function:\n-1- ‚뢥бвЁ ¤ **лҐ ® 祫®ўҐЄҐ\n-2- ЏаЁ¬Ґа*®Ґ ®Їа¤Ґ«Ґ*ЁҐ ў®§а бв 祫®ўҐЄ \n-3- ‚뢥бвЁ а §¬Ґа ҐЈ® § аЇ« вл(ЇаЁ¬Ґа*®)";
cout<<"\n-4- ‚л室 Ё§ ў ўЁавг «м*го дг*ЄжЁо\n";
cin>>i;
clrscr();
textattr(5);
switch(i)
{
case 1 : base();
cout<<"‘в ¦ а Ў®вл ЇаҐЇ®¤ ў ⥫Ґ¬"<<*curs;
break;

case 2 : cout<<"ЋЄ®«® 30-50 «Ґв\n";
break;

case 3 : zarplata(); cout<<"0\n";
break;

case 4 : ident=0;
break;

default: cout<<"\nWrong number of tne function\n";
}
}

}


void virt(school *t,school *d,school *a,school *p )
{
clrscr();
cout<<"‚л * 室ЁвҐбм ў бдҐаҐ а Ў®вл ўЁавг «м*®© дг*ЄжЁЁ, Є®в®а п ¤«п «оЎ®Ј® ®ЎкҐЄв ўлбзЁвлў Ґв ЇаЁ¬Ґа*л© ў®§а бв ҐЈ® தЁвҐ«Ґ©\n";
int i, ident=1;
while(ident==1)
{
textattr(3);
cout<<"\n choose the function:\n‡ ЇгбвЁвм ўЁавг «м*го дг*ЄжЁо ¤«п\n-0- иЄ®«м*ЁЄ \n-1- cв㤥*в \n-2- бЇЁа *в \n-3- ЇаҐЇ®¤ ў ⥫п";
cout<<"\n-4- ‚л室 Ё§ Їа®Ја ¬¬л\n";

cin>>i;
clrscr();


switch(i)
{ case 0 : t->function(); break;
case 1 : d->function(); break;
case 2 : a->function(); break;
case 3 : p->function(); break;
case 4 : ident=0; break;

default: cout<<"\nWrong number of tne function\n";
}
}
}


void main()
{
clrscr();
cout<<"Ќ ¤ **®¬ нв *Ґ ®ЎмҐЄв пў«пҐвбп иЄ®«м*ЁЄ®¬\n"
<<"‚ўҐ¤ЁвҐ ҐЈ® * з «м*лҐ ¤ **лҐ";
school *t=new school;
t->ident();
student *d=new student;
d->ident2(t);
aspirant *a=new aspirant;
a->ident3(d);
prepod *p=new prepod;
p->ident4(a);
virt(t, d, a, p);
delete t, d, a, p;
}
она рабочая но препад сказал что некоректно написана, помогите переписать!