#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <string.h>
#include <time.h>
#include <limits.h>

using namespace std;

#define CLR while(getchar()!='\n')
#define kmax 10
#define lmax 81
#define FCLR while(getc(fin)!='\n')

struct publisher_house
{
    int year;
    char title[lmax],city[lmax];
};

struct book
{
    char name[lmax],author[lmax];
    int price;
    int str;
    publisher_house ph;
};

void removen(char *s){
    for(;*s && *s!='\n';s++);
    *s='\0';
}

bool enter(int *num, book *b){

    char filename[20];
    FILE *f;

    printf("Enter the file name\n");
    gets(filename);

    *num = 0;

    if (!(f=fopen(filename,"r"))){
        puts("File not found\n");
        return false;
    }
    else{
        while(!feof(f)){
            fgets(b->name,100,f); removen(b->name);
            if(b->name[0]=='\0') {
                printf("File is empty\n");
                return false;
            }
            else{
                (*num)++;
                fscanf(f,"%d", &b->price);
                fscanf(f,"%d", &b->str); CLR;
                fgets(b->author, 50, f); removen(b->author);
                fscanf(f,"%d", &b->ph.year); CLR;
                fgets(b->ph.title, 50, f); removen(b->ph.title);
                fgets(b->ph.city, 50, f);
                b++;
            }
        }
    }
    return true;
}


void print(int n, book *cm, bool f){

    printf("\nPublishers, producing the cheapest books of more than 100 pages:\n");

    for (int i=0;i<n;i++, cm++)
        printf("Name of publisher house: %s\n", cm->ph.title);

    printf("End of list\n");
    printf("Press any key to conrinue...\n");
    getchar();
}


int find(int num,book *b,  book *cm)
{
    int i,j,f,numc;
    book *b1=b;
    int minstr=100;
    int minprice = b->price;
    for (i = 0; i < num; i++,b++)
        if (b->price < minprice) minprice = b->price;

    for(i=0;i<num;i++,b++)
    {
        f=1;

        if(b->str<minstr||b->price!=minprice) f=0;
        if(f==1)
        {
            *cm = *b1;
            numc++;
            cm++;
        }
    }
     return numc;

}

int main()
{
    int num, numc;
    book b[20], cm[20], *ub = b;

    if(enter(&num, ub)) {
        print(num, b, false);
        numc = find(num, ub, cm);
        if (numc == 0) printf("Подходящие книги не найдены");
        else print(numc, cm, true);
    }

    return 0;
}