Problem: Write a program that creates a structure representing a book with the following fields: title, author, and year of publication. Use dynamic memory allocation to create an array of book structures, take user input for the details of each book, and display the book records.

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#include <iostream> #include <string> struct Book {    std::string title;    std::string author;    int year; }; int main() {    int numBooks;    std::cout << "Enter the number of books: ";    std::cin >> numBooks;    // Dynamically allocate an array of book structures    Book* books = new Book[numBooks];    // Input book details    for (int i = 0; i < numBooks; ++i) {        std::cout << "Enter details for book " << (i + 1) << ":\n";        std::cin.ignore(); // Ignore the newline character in the input buffer        std::cout << "Title: ";        std::getline(std::cin, books[i].title);        std::cout << "Author: ";        std::getline(std::cin, books[i].author);        std::cout << "Year of Publication: ";        std::cin >> books[i].year;        std::cout << std::endl;    }    // Display book records    std::cout << "Book Records:\n";    for (int i = 0; i < numBooks; ++i) {        std::cout << "Book " << (i + 1) << ":\n";        std::cout << "Title: " << books[i].title << std::endl;        std::cout << "Author: " << books[i].author << std::endl;        std::cout << "Year of Publication: " << books[i].year << std::endl;        std::cout << std::endl;    }    // Deallocate the dynamically allocated memory    delete[] books;    return 0; }

In this example, we define a structure called Book that represents a book record with three fields: title and author as strings, and year as an integer.

The program prompts the user to enter the number of books and dynamically allocates an array of Book structures accordingly using the new operator.

Next, the program takes user input for the details of each book using std::getline() to read strings with spaces correctly. The input is stored in the dynamically allocated array of book structures.

Finally, the program displays the book records by iterating over the array and printing the values of the structure members.

Remember to deallocate the dynamically allocated memory using delete[] to free the memory after you're done using it.

Feel free to modify and expand upon this code to practice other operations with pointers to structures or experiment with different data types or members within the structure.