1.You are given a partially completed program hw05q1.c. You should follow the instructions given in the program to complete the functions so that the program executes as instructed. The program declares a struct libraryRecord with elements for Book Title, Authors Name, Book Type, Book Id, Aisle number in which the book should be kept. You will be completing a program that creates a list of books (array of structures). It is a menu-driven program where the user is given the following options: a)Add a new book to the list. When adding a new book to the list, the user is prompted for Book Title, Author Name, Book Type, Book Id and Aisle number of the book. The book should be added at the end of the list. If the book (name or ID) already exists in the list, then you should not add to the list. The book type is an enum type. b)Sort the list of books numerically by ID. The sorting should happen within the list. You should not create a new list (array of structs) of books having sorted books.

c)Delete a book from the list. When deleting a book from the list, the user is prompted for Book ID only. The book should be removed from the list and the array structure should be preserved / restored afterwards. Attempting to delete a book who is not in the list should return 0. Otherwise, return 1 upon a successful removal of the record. There is save() already implemented to write the books list to a file Book_List.txt. save() is executed at the end of the program when the user quits the program. You need to implement load() which is called at the start of the program. This function will read the saved file and fill in the array of structures. You need to read the file in the same order and manner that it is saved in save(). Expected output of each function:

// CSE240 Spring 2021 HW5// Write your name here// Write the compiler used: Visual studio or gcc// READ BEFORE YOU START:// You are given a partially completed program that creates a list of books, like book's record.// Each record has this information: book title, author, type of the book, book id and aisle in which the book is to be kept.// The struct 'libraryRecord' holds information of one book. bookType is enum type.// An array of structs called 'list' is made to hold the list of books.// To begin, you should trace through the given code and understand how it works.// Please read the instructions above each required function and follow the directions carefully.// You should not modify any of the given code, the return types, or the parameters, you risk getting compile error.// You are not allowed to modify main ().// You can use string library functions.// WRITE COMMENTS FOR IMPORANT STEPS IN YOUR CODE.#include #include #include #pragma warning(disable: 4996) // for Visual Studio Only#define MAX_BOOKS 15#define MAX_NAME_LENGTH 25typedef enum { Nonfiction = 0, Fiction } bookType; // enum type struct libraryRecord {// struct for book detailschar bookTitle[MAX_NAME_LENGTH];char author[MAX_NAME_LENGTH];bookType booktype;unsigned int bookId;unsigned int aisle;};struct libraryRecord list[MAX_BOOKS]; // declare list of booksint count = 0; // the number of books currently stored in the list (initialized to 0)// functions already implmentedvoid flushStdIn();void executeAction(char);void save(char* fileName);// functions that need implementation:int add(char* bookTitle_input, char* author_input, char* booktype_input, unsigned int bookId_input, unsigned int aisle_input); // 20 pointsvoid sort(); // 10 pointsint delete(unsigned int bookId_input); // 10 pointsvoid load(char* fileName); // 10 pointsvoid display(); // given

int main(){char* fileName = "Book_List.txt";load(fileName);// load list of books from file (if it exists). Initially there will be no file.char choice = 'i';// initialized to a dummy valuedo{printf(" Enter your selection: ");printf("\t a: add a new book ");printf("\t d: display book list ");printf("\t r: remove a book from list ");printf("\t s: sort book list by ID ");printf("\t q: quit ");choice = getchar();flushStdIn();executeAction(choice);} while (choice != 'q');save(fileName); // save list of books to file (overwrites file, if it exists)return 0;}// flush out leftover ' ' charactersvoid flushStdIn(){char c;do c = getchar();while (c != ' ' && c != EOF);}// ask for details from user for the given selection and perform that actionvoid executeAction(char c){char bookTitle_input[MAX_NAME_LENGTH], author_input[MAX_NAME_LENGTH];unsigned int bookId_input, aisle_input, add_result = 0;char booktype_input[20];switch (c){case 'a':// input book record from userprintf(" Enter book title: ");fgets(bookTitle_input, sizeof(bookTitle_input), stdin);bookTitle_input[strlen(bookTitle_input) - 1] = '\0';// discard the trailing ' ' charprintf("Enter author name: ");fgets(author_input, sizeof(author_input), stdin);author_input[strlen(author_input) - 1] = '\0';// discard the trailing ' ' charprintf("Enter book type (Fiction/ Nonfiction): ");fgets(booktype_input, sizeof(booktype_input), stdin);booktype_input[strlen(booktype_input) - 1] = '\0';// discard the trailing ' ' charprintf("Please enter book ID number: ");scanf("%d", &bookId_input);printf("Please enter aisle number: ");scanf("%d", &aisle_input);flushStdIn();

// add the book to the listadd_result = add(bookTitle_input, author_input, booktype_input, bookId_input, aisle_input);if (add_result == 0)printf(" Book is already on the list! ");else if (add_result == 1)printf(" Book successfully added to the list! ");elseprintf(" Unable to add. Book list is full! ");break;case 'r':printf("Please enter ID number of book to be deleted: ");scanf("%d", &bookId_input);flushStdIn();int delete_result = delete(bookId_input);if (delete_result == 0)printf(" Book not found in the list! ");elseprintf(" Book deleted successfully! ");break;case 'd': display();break;case 's': sort();break;case 'q': break;default: printf("%c is invalid input! ", c);}}// Q1 : add (20 points)// This function is used to add a book into the list. You can simply add the new book to the end of list (array of structs).// Do not allow the book to be added to the list if it already exists in the list. You can do that by checking book names AND IDs already in the list.// If the book already exists then return 0 without adding it to the list. If the book does not exist in the list then add the book at the end of the list and return1.// If book list is full, then do not add new book to the list and return 2.// NOTE: Notice how return type of add() is checked in case 'a' of executeAction()// NOTE: You must convert the string 'booktype_input' to an enum type and store it in the list because the booktype has enum type (not string type).// The list should be case sensitive. For instance, 'Roger' and 'roger' should be considered two different names.// Hint: 'count' holds the number of books currently in the listint add(char* bookTitle_input, char* author_input, char* booktype_input, unsigned int bookId_input, unsigned int aisle_input){// Enter code herereturn 0;// edit this line as needed}// This function displays the book list with the details (struct elements) of each book. void display(){char* booktypeString = "Nonfiction";// // add the book to the listadd_result = add(bookTitle_input, author_input, booktype_input, bookId_input, aisle_input);if (add_result == 0)printf(" Book is already on the list! ");else if (add_result == 1)printf(" Book successfully added to the list! ");elseprintf(" Unable to add. Book list is full! ");break;case 'r':printf("Please enter ID number of book to be deleted: ");scanf("%d", &bookId_input);flushStdIn();int delete_result = delete(bookId_input);if (delete_result == 0)printf(" Book not found in the list! ");elseprintf(" Book deleted successfully! ");break;case 'd': display();break;case 's': sort();break;case 'q': break;default: printf("%c is invalid input! ", c);}}// Q1 : add (20 points)// This function is used to add a book into the list. You can simply add the new book to the end of list (array of structs).// Do not allow the book to be added to the list if it already exists in the list. You can do that by checking book names AND IDs already in the list.// If the book already exists then return 0 without adding it to the list. If the book does not exist in the list then add the book at the end of the list and return1.// If book list is full, then do not add new book to the list and return 2.// NOTE: Notice how return type of add() is checked in case 'a' of executeAction()// NOTE: You must convert the string 'booktype_input' to an enum type and store it in the list because the booktype has enum type (not string type).// The list should be case sensitive. For instance, 'Roger' and 'roger' should be considered two different names.// Hint: 'count' holds the number of books currently in the listint add(char* bookTitle_input, char* author_input, char* booktype_input, unsigned int bookId_input, unsigned int aisle_input){// Enter code herereturn 0;// edit this line as needed}// This function displays the book list with the details (struct elements) of each book. void display(){char* booktypeString = "Nonfiction";//

dummy initfor (int i = 0; i < count; i++)// iterate through the list{printf(" Book Title: %s", list[i].bookTitle);// display Book titleprintf(" Author Name: %s", list[i].author);// display authorif (list[i].booktype == Nonfiction)// find what to display for book typebooktypeString = "Nonfiction";elsebooktypeString = "Fiction";printf(" Book Type: %s", booktypeString);// display book typeprintf(" Book ID: %d", list[i].bookId);// display book idprintf(" Aisle number: %d", list[i].aisle);// display aisle numberprintf(" ");}}// Q2 : sort (10 points)// This function is used to sort the list(array of structs) numerically by book ID.// Parse the list and compare the book IDs to check which one should appear before the other in the list.// Sorting should happen within the list. That is, you should not create a new array of structs having sorted books.// Hint: Use a temp struct (already declared) if you need to swap two structs in your logicvoid sort(){struct libraryRecord libraryTemp;// needed for swapping structs. Not absolutely necessary to use.// Enter code here// display message for user to check the result of sorting.printf(" Book list sorted! Use display option 'd' to view sorted list. ");}// save() is called at the end of main()// This function saves the array of structures to file. It is already implemented.// You should read and understand how this code works. It will help you with 'load()' function.// save() is called at end of main() to save the book list to a file.// The file is saved at the same place as your C file. For VS, the default directory looks like this:// C:\Users\\Documents\Visual Studio 2017\Projects\Project1\Project1// You can simply delete the file to 'reset the list' or to avoid loading from it.void save(char* fileName){FILE* file;int i, booktypeValue = 0;file = fopen(fileName, "wb");// open file for writing

fwrite(&count, sizeof(count), 1, file);// First, store the number ofbooks in the list// Parse the list and write book record to filefor (i = 0; i < count; i++){fwrite(list[i].bookTitle, sizeof(list[i].bookTitle), 1, file);fwrite(list[i].author, sizeof(list[i].author), 1, file);// convert enum to a number for storingif (list[i].booktype == Nonfiction)booktypeValue = 0;// 0 for NonfictionelsebooktypeValue = 1;// 1 for Fictionfwrite(&booktypeValue, sizeof(booktypeValue), 1, file);fwrite(&list[i].bookId, sizeof(list[i].bookId), 1, file);fwrite(&list[i].aisle, sizeof(list[i].aisle), 1, file);}fclose(file);// close the file after writing}// Q3 : delete (10 points)// This function is used to delete a book by ID.// Parse the list and compare the book IDs to check which one should be deleted.// Restore the array structure after removal of the book record.// Return 0 if the specified ID was not found. Return 1 upon successful removal of a record.int delete(unsigned int bookId_input){struct libraryRecord libraryTemp;// needed for swapping structs. Not absolutely necessary to use.// Enter code herereturn 0; // edit this line as needed}// Q4: load (10 points)// This function is called in the beginning of main().// This function reads the book list from the saved file and builds the array of structures 'list'. // In the first run of the program, there will be no saved file because save() is called at the end of program.// So at the begining of this function, write code to open the file and check if itexists. If file does not exist, then return from the function.// (See expected output of add() in homework question file. It displays "Book_List.txt not found" because the file did not exist initially.)// If the file exists, then parse the book list to read the book details from the file.// Use the save function given above as an example of how to write this function. Notice the order in which the struct elements are saved in save()// You need to use the same order to read the list back.// NOTE: The saved file is not exactly readable because all elements of the struct are not string or char type.// So you need to implement load() similar to how save() is implemented. Onlythen the 'list' will be loaded correctly.//You can simply delete the file to 'reset the list' or to avoid loading from it.

void load(char* fileName){// Enter code here}