#include<stdio.h>
#include<conio.h>
#include<math.h>
#include<string.h>

struct Rec1
{
       long nomer;
       char name[20];
       int year;
       char group[20];
};

struct Rec2
{
       char name[20];
       int year;
       char group[20];
};

int CreateFile(char *FIn)
{
 FILE *f;
 struct Rec1 student;
 if((f=fopen(FIn,"wb"))==NULL)
  return 1;
 printf("name: "); scanf("%s",student.name);
 while (strcmp(student.name,"000"))
 {
  printf("year: ");  scanf("%i",&student.year);
  printf("group: ");  scanf("%s",&student.group);
  fwrite(&student,sizeof(student),1,f);
  printf("\nname: "); scanf("%s",student.name);
 }
  fclose(f);
  return 0;
 }

int ReadFile(char *FIn, char *FOut)
{
 char a[20]; int q; FILE *f,*g;
 struct Rec1 student;
 if((f=fopen(FIn,"rb"))==NULL)
  return 1;
 if((g=fopen(FOut,"wb"))==NULL)
  return 1;
  putchar('\n');
 while (fread(&student,sizeof(student),1,f))
  {
   sprintf(a,"%s",student.name);
  q=strcmp(a,student.name);
   if(q==0)
    fwrite(&student,sizeof(student),1,g);
  }

 while(fread(&student,sizeof(student),1,g))
  {
   printf("%s",student.name);
   printf("%d",student.year);
   printf("%s",student.group);
  }
 fclose(f);
 fclose(g);
 return 0;
}

int main()
{
 char *FIn="D:\\in.data";
 char *FOut="D:\\out.data";
  CreateFile(FIn);
  ReadFile(FIn,FOut);
 getch();
 return 0;
}