not able to find the errors in program

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Please help me to find the errors in the following program. Thank you!

// PROJECT HOTEL-MANAGEMENT
// INCLUDED HEADER FILES
#include"graf.cpp"
#include<iostream .h>
#include<conio .h>
#include<string .h>
#include<graphics .h>
#include<dos .h>
#include<stdio .h>
#include<fstream .h>
#include<iomanip .h>
#include<stdlib .h>
// THIS CLASS CONTAINS FUNTIONS FOR FOOD
class food
{
private:
fstream p1;
int c;
char ap;
struct fd
{
char name[55];
float price;
}f;
public:
food()
{
c=0;
}
void food_menu(void);
void app_fmenu(void);
void food_bill();
void del_all();
};

// FUNCTION FOR DISPLAYING FOOD MENU
void food::food_menu(void)
{
cleardevice();
setfillstyle(7,1);
floodfill(0,0,4);
setfillstyle(7,10);
bar(17,40,605,420);
rectangle(17,40,605,420);
setfillstyle(1,10);
bar(24,47,598,413);
rectangle(24,47,598,413);
p1.close();
c=0;
p1.open("food.txt",ios::in|ios::binary);
outtextxy(30,50,"S.N. ITEM NAME PRICE");
gotoxy(4,5);
char h[5],pr[15];
while(p1.read((char*)&f,sizeof(f)))
{
c++;
settextstyle(4,0,1);
itoa(c,h,10);
outtextxy(40,60+20*c,h);
outtextxy(150,60+20*c,f.name);
itoa(f.price,pr,10);
outtextxy(390,60+20*c,pr);
}//END OF WHILE
p1.close();
settextstyle(15,0,1);
outtextxy(30,325,"DO YOU WANT TO ADD AN ITEM - (Y/N)");
gotoxy(60,20);
cin>>ap;
if(ap=='y'||ap=='Y')
{
app_fmenu();
//CALLING APPEND FUNCTION
}
else
{
if(ap=='n'||ap=='N')
{
outtextxy(30,360,"DO YOU WANT TO DELETE ALL (Y/N)");
char ch;
gotoxy(60,23);
cin>>ch;
if(ch=='y'||ch=='Y')
{
del_all();
//CALLING DELETE FUNCTION
}
}
}
}

// FUNCTION TO APPEND IN FOOD MENU

void food::app_fmenu(void)
{
p1.open("food.txt",ios::app|ios::binary);
outtextxy(30,360,"ENTER ITEM NAME U WANTTO ADD");
gotoxy(60,23);
gets(f.name);
outtextxy(30,380,"ENTER THE PRICE");
gotoxy(60,24);
cin>>f.price;
p1.write((char*)&f,sizeof(f));
p1.close();
getch();
}
// FUNCTION FOR FOOD BILL
void food::food_bill()
{
double bill=-1;
char c_name[20],f_name[20];