#include<stdio.h>  
  #include<stddef.h>  
  #define FAIL 0  
  #define SUCCESS 1  
  typedef struct{  
  int id;  
  char name[20];  
  char surname[20];  
  }OGR;  
  int main()  
  {  
  FILE *fp1;  
  OGR ogrenci;  
  int no,offset;  
   
  fp1=fopen("infile","rb");  
  if(fp1==NULL)  
  {  
  fclose(fp1);  
  return FAIL;  
  }  
   
  printf("ogrencinin numarasini giriniz: ");  
  scanf("%d",&no);  
   
  offset=(no-1)*sizeof(OGR); //amac:gostegenin istenilen karakter kadar ilerlemesi icin 
   
  if(fseek(fp1,offset,SEEK_SET))  
  {  
  printf("hatali erisim");  
  return FAIL;  
  }  
   
   
  fread(&ogrenci,sizeof(OGR),1,fp1);  
  printf("%d-%s %s",ogrenci.id,ogrenci.name,ogrenci.surname);  
   
  fclose(fp1);  
   
  return SUCCESS;  
  }