include iostream include algorithm using namespace std struct book cha

#include <iostream>
#include <algorithm>

using namespace std;

struct book {
    char name[100];
    int year;
};

int compare(const void *a, const void *b) {
    book *book1 = (book *) a;
    book *book2 = (book *) b;

    return (book2->year - book1->year);
}

int main() {
    size_t dimension;

    printf("Enter the dimension of books array: ");
    cin >> dimension;

    struct book books[dimension];

    string query;

    for (int i = 0; i < dimension; ++i) {
        cout << "Enter name of the book" << endl;
        cin >> books[i].name;
        cout << "Enter year of the book" << endl;
        cin >> books[i].year;
    }

    cout << "Entered array:" << endl;

    for (int i = 0; i < dimension; ++i) {
        cout << books[i].name << " - " << books[i].year << endl;
    }

    qsort(books, dimension, sizeof(book), compare);

    cout << "Sorted array:" << endl;

    for (int i = 0; i < dimension; ++i) {
        cout << books[i].name << " - " << books[i].year << endl;
    }

    return 0;
}