Book details in C: Finding most expensive and lowest priced books

C programming related to structures: Exercise-3 with Solution

Create a structure named Book to store book details like title, author, and price. Write a C program to input details for three books, find the most expensive and the lowest priced books, and display their information.

Sample Solution:

C Code:

#include <stdio.h>
#include <float.h> // Include for FLT_MAX and FLT_MIN constants

// Define the structure "Book"
struct Book {
    char title[100];
    char author[100];
    float price;
};

int main() {
    // Declare variables to store details for three books
    struct Book book1, book2, book3;

    // Input details for the first book
    printf("Input details for Book 1:\n");
    printf("Title: ");
    scanf("%s", book1.title); // Assuming titles do not contain spaces
    printf("Author: ");
    scanf("%s", book1.author); // Assuming authors do not contain spaces
    printf("Price: ");
    scanf("%f", &book1.price);

    // Input details for the second book
    printf("\nInput details for Book 2:\n");
    printf("Title: ");
    scanf("%s", book2.title);
    printf("Author: ");
    scanf("%s", book2.author);
    printf("Price: ");
    scanf("%f", &book2.price);

    // Input details for the third book
    printf("\nInput details for Book 3:\n");
    printf("Title: ");
    scanf("%s", book3.title);
    printf("Author: ");
    scanf("%s", book3.author);
    printf("Price: ");
    scanf("%f", &book3.price);

    // Find the most expensive book
    struct Book mostExpensive;
    if (book1.price >= book2.price && book1.price >= book3.price) {
        mostExpensive = book1;
    } else if (book2.price >= book1.price && book2.price >= book3.price) {
        mostExpensive = book2;
    } else {
        mostExpensive = book3;
    }

    // Find the lowest priced book
    struct Book lowestPriced;
    if (book1.price <= book2.price && book1.price <= book3.price) {
        lowestPriced = book1;
    } else if (book2.price <= book1.price && book2.price <= book3.price) {
        lowestPriced = book2;
    } else {
        lowestPriced = book3;
    }

    // Display information for the most expensive book
    printf("\nMost Expensive Book:\n");
    printf("Title: %s\n", mostExpensive.title);
    printf("Author: %s\n", mostExpensive.author);
    printf("Price: %.2f\n", mostExpensive.price);

    // Display information for the lowest priced book
    printf("\nLowest Priced Book:\n");
    printf("Title: %s\n", lowestPriced.title);
    printf("Author: %s\n", lowestPriced.author);
    printf("Price: %.2f\n", lowestPriced.price);

    return 0;
}

Output:

Input details for Book 1:
Title: Book-1
Author: Author-1
Price: 100

Input details for Book 2:
Title: Book-2
Author: Author-2
Price: 120

Input details for Book 3:
Title: Book-3
Author: Author-3
Price: 111

Most Expensive Book:
Title: Book-2
Author: Author-2
Price: 120.00

Lowest Priced Book:
Title: Book-1
Author: Author-1
Price: 100.00

Explanation:

In the exercise above,

• The Book structure is defined with members title, author, and price.
• Three variables (book1, book2, and book3) are declared to store details for three books.
• The program prompts the user to input details for each book.
• It then finds the most expensive and lowest priced books.
• Finally, it displays information for both the most expensive and lowest priced books.

Flowchart:

C Programming Code Editor:

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