Question

Write a C program to create a list of books details. The details of a book include title, author, publisher, publishing year, no. of pages , price

Perform the following with respect to the list of books created

1. Display all the details of books written by a given author.
2. Sort the details of books in the increasing order of price.
3. Display the details of books published by a given publisher in a given year.
4. Sort the list of books in the increasing order of two fields , author and title of the books.

Answer 1

If you have any doubts, please give me comment...

#include<stdio.h>

#include<stdlib.h>

#include<string.h>

typedef struct{

char title[20];

char author[20];

char publisher[20];

int pub_year;

int no_pages;

double price;

} BOOK;

void sortByPrice(BOOK *book, int n);

void sortByAuthorTitle(BOOK *book, int n);

int main(){

int n;

printf("How many books would you like to enter: ");

scanf("%d", &n);

BOOK *books = (BOOK *)malloc(n*sizeof(BOOK));

for(int i=0; i<n; i++){

printf("Enter book title: ");

scanf("%s", books[i].title);

printf("Enter book author: ");

scanf("%s", books[i].author);

printf("Enter book publisher: ");

scanf("%s", books[i].publisher);

printf("Enter book publishing year: ");

scanf("%d", &books[i].pub_year);

printf("Enter no of pages: ");

scanf("%d", &books[i].no_pages);

printf("Enter price: ");

scanf("%lf", &books[i].price);

}

char author[20];

printf("Enter author name: ");

scanf("%s", author);

int exists = 0;

for(int i=0; i<n; i++){

if(strcmp(books[i].author, author)==0){

printf("Book Title: %s\n", books[i].title);

printf("Book Publisher: %s\n", books[i].publisher);

printf("Book Publishing Year: %d\n",books[i].pub_year);

printf("Book No_of Pages: %d\n", books[i].no_pages);

printf("Book Price: %lf\n",books[i].price);

exists = 1;

}

}

if(!exists)

printf("No books found with author %s\n\n", author);

//sort by price

sortByPrice(books, n);

char publisher[20];

printf("Enter publisher name: ");

scanf("%s", author);

exists = 0;

for(int i=0; i<n; i++){

if(strcmp(books[i].publisher, publisher)==0){

printf("Book Title: %s\n", books[i].title);

printf("Book Publisher: %s\n", books[i].publisher);

printf("Book Publishing Year: %d\n",books[i].pub_year);

printf("Book No_of Pages: %d\n", books[i].no_pages);

printf("Book Price: %lf\n",books[i].price);

exists = 1;

}

}

if(!exists)

printf("No books found with publisher %s\n\n", publisher);

//sort by book author and title

sortByAuthorTitle(books, n);

for(int i=0; i<n; i++){

if(strcmp(books[i].publisher, publisher)==0){

printf("Book Title: %s\n", books[i].title);

printf("Book Publisher: %s\n", books[i].publisher);

printf("Book Publishing Year: %d\n",books[i].pub_year);

printf("Book No_of Pages: %d\n", books[i].no_pages);

printf("Book Price: %lf\n",books[i].price);

}

printf("\n");

}

return 0;

}

void sortByPrice(BOOK *books, int n){

for(int i=0; i<n; i++){

for(int j=i+1; j<n; j++){

if(books[i].price>books[i].price){

BOOK temp = books[i];

books[i] = books[j];

books[j] = temp;

}

}

}

}

void sortByAuthorTitle(BOOK *books, int n){

for(int i=0; i<n; i++){

for(int j=i+1; j<n; j++){

if(books[i].author>books[i].author && books[i].title>books[i].title){

BOOK temp = books[i];

books[i] = books[j];

books[j] = temp;

}

}

}

}