int edit char file FILE struct info puipl int num system cls fopen fil

int edit(char* file)
{
    FILE *f;
    struct info puipl;
    int num;
    system("cls");
    f=fopen(file,"r+b");
    if(!f)
    {
        printf("opening error!!!\n");
        system("pause");
        return 1;
    }
    printf("Enter number of puipl whose results you want to delete\n");
    scanf("%d",&num);
    fseek(f,(num-1)*sizeof(puipl),SEEK_SET);
    if(fread(&puipl,sizeof(puipl),1,f)){
    fseek(f,-(sizeof(puipl)),SEEK_CUR);
    puipl=input_puipl();
    fwrite(&puipl,sizeof(puipl),1,f);
    }
  fclose(f);
  system("pause");
  return 0;
}