تمرین آخر برنامه نویسی

این خداییش نمی خواستم بزارم چون از 5 عصر تا 2 نصف شب دورش بودم فقط یک ساعت 8 تا نه شب رفتم مسجد شامم نخوردم.

#include <iostream.h>
#include <string.h>
#include <conio.h>
#define size 100
class etelaat
{
public:
 int gf,gmo,gma,moadel,e;
  char firstname[75];
  char lastname[75];
 void tartib(int);
} x[size];
void etelaat :: tartib(int a)
{
 int max=0,v=0,b=0,c=0;

 for (int i=0 ; i < size;i++)
 for (int j = i + 1; j < size; j++)
 {
  if (x[j].moadel>x[i].moadel)
  {
   struct peyman {
            char A[75];
    char C[75];}p;
   max = x[j].moadel;
   x[j].moadel = x[i].moadel;
   x[i].moadel = max;
   v = x[j].gf;
   b = x[j].gmo;
   c = x[j].gma;
   x[j].gf = x[i].gf;
   x[i].gf = v;
   x[j].gmo = x[i].gmo;
   x[i].gmo = b;
   x[j].gma = x[i].gma;
   x[i].gma = c;
         strcpy(p.C,x[i].firstname);
         strcpy(x[i].firstname,x[j].firstname);
         strcpy(x[j].firstname,p.C);
         strcpy(p.A,x[i].lastname);
         strcpy(x[i].lastname,x[j].lastname);
         strcpy(x[j].lastname,p.A);
  }
 }
}
void main()
{
 int i;
 struct harf{
 char pe[75] ;
 char ks[75] ;
 }h;
   cout << "esme mored nazar khod ra vare konid:  ";
 cin >> h.pe ;
 for (i = 0; i < size; i++)
 {
  cout << "Lotfan esme kochak " << ++i << " ra vared konid:" << endl;
  i--;
  cin >> x[i].firstname;
  cout << "Lotfan famil " << ++i << " ra vared konid:" << endl;
  i--;
  cin >> x[i].lastname;
  cout << "Lotfan nomre fizik " << ++i << " ra vared konid:" << endl;
  i--;
  cin >> x[i].gf;
  cout << "Lotfan nomre mabani " << ++i << " ra vared konid:" << endl;
  i--;
  cin >> x[i].gma;
  cout << "Lotfan nomre moadelat " << ++i << " ra vared konid:" << endl;
  i--;
  cin >> x[i].gmo;
 }
 for (i = 0; i < size; i++)
  x[i].moadel = (x[i].gf + x[i].gma + x[i].gmo)/3;
   cout << "nnn In etelaat marbot be daneshjoian ba esme ALI hast.n";
 for (i = 0; i < size; i++){
  if (strncmp(x[i].firstname, h.pe, 3) == 0){
   cout << x[i].firstname ;
   cout <<"    " <<x[i].lastname << endl;
   cout <<"    nomre fizike :  " << x[i].gf;
   cout <<"    nomre mabani :  " << x[i].gma;
   cout <<"    nomre moadelat :  " <<x[i].gmo << "nn";
  }
 }
   cout << "nnn In ghesmaat radey daneshjoian ra neshan midahad.n";
 for (i = 0; i < size; i++){
  if (x[i].moadel >= 17)
   cout <<x[i].firstname<<"  "<<x[i].lastname <<"   dar radeye A gharar darad." <<  endl;
  if (x[i].moadel >= 15 && x[i].moadel < 17)
   cout << x[i].firstname<<"  "<<x[i].lastname <<"   In daneshgo dar radeye B gharar darad." <<  endl;
  if (x[i].moadel < 15)
   cout <<x[i].firstname<<"  "<<x[i].lastname  <<"   In daneshgo dar radeye C gharar darad." << endl;
 }
 for (int i = 0; i < size; i++)
  x[i].tartib(x[i].moadel);
   cout << "nnn In ghesmaat danesgjoian ra bar asas moadel moratab mikonad:  nn";
 for (int i = 0; i < size; i++)
 {
  cout << x[i].firstname << " e " << x[i].lastname << " ba moadle " << x[i].moadel<<endl;
 }
 getch();
}