#pragma hdrstop
#include<stdio.h>
#include<conio.h>
#include<string.h>
#pragma argsused
struct Library{
        char surname[10], initials[4], title[20], place_of_publication[20];
        int year;
              } Lib[100], LibRes[100];

void Add(FILE *file1)
{
        int i, n;
        clrscr();
        printf("Enter number of books\n");
        scanf("%d", &n);

        fflush(stdin);
        for(i=0;i<n;i++){
                printf("Surname: ");scanf("%s", &Lib[i].surname);
                printf("Initials: "); scanf("%s", &Lib[i].initials);
                printf("Title: "); scanf("%s", &Lib[i].title);
                printf("Place of publication: "); scanf("%s", &Lib[i].place_of_publication);
                printf("Year: "); scanf("%d", &Lib[i].year);
                fwrite(&Lib[i], sizeof(struct Library), 1, file1);
               clrscr();
                        }
}



void Review (FILE *file)
{
        int i=0;

        while( fread(&Lib[i], sizeof(struct Library), 1, file))
        {
                printf("Surname and initials: %s %s \n", Lib[i].surname, Lib[i].initials);
                printf("Title: ");puts(Lib[i].title);
                printf(" place of publication and year: %s %d\n", Lib[i].place_of_publication, Lib[i].year);
                i++;
        }
}

void Result (FILE *file1, FILE *file2)
{
        int i=0, j, n=0, k=0;
        while( fread(&Lib[i], sizeof(struct Library), 1, file1))
        {
                if(Lib[i].year == 1993)
                {
                    LibRes[k]=Lib[i];
                     k++;
                }
              i++;
        }

          for(i=0;i<k;i++)
            for(j=0;j<k-1;j++)
          {
            int l=strcmp(LibRes[j].surname,LibRes[j+1].surname);
              if(l>=1)
              {
              struct Library t=LibRes[j];
              LibRes[j]=LibRes[j+1];
              LibRes[j+1]=t;
              }
          }
         file2 = fopen("Res_Library.dat", "wb");
         for(i=0;i<k;i++)
                {
                fwrite(&LibRes[i], sizeof(struct Library), 1, file2);
                }
                fclose(file2);
}
int main(int argc, char* argv[])
{
        int i=1, n;
        FILE *file1, *file2;
        while(i)
        {
        printf("1 - New File   2 - Add to File   3 - Open    4 - Review  5 - EXIT\n");
        scanf("%d", &n);
                if(n == 1)
                {
                file1 = fopen("Library.dat", "wb");
                Add(file1);
                fclose(file1);
                }

                if(n==2)
                {
                file1 = fopen("Library.dat", "ab");
                Add(file1);
                fclose(file1);
                }

                if(n==3)
                {
                file1 = fopen("Library.dat", "rb" );
                }


                if(n==4)
                {
                file1 = fopen("Library.dat", "rb");
                Review(file1);
                fclose(file1);
                getch();
                }

                if(n==5)
                {
                fclose(file1);
                i=0;
                }
        }
        file1 = fopen("Library.dat", "rb");
        file2 = fopen("Res_Library.dat", "wb");
        Result(file1, file2);
         fclose(file2);
         file2 = fopen("Res_Library.dat", "rb");
        Review(file2);
        fclose(file1);
         fclose(file2);

        getch();return 0;
}