#include <stdio.h>
#include <stdlib.h>
/*
* This stores the total number of books in each shelf.
*/
int* total_number_of_books;
/*
* This stores the total number of pages in each book of each shelf.
* The rows represent the shelves and the columns represent the books.
*/
int** total_number_of_pages;
int main()
{
int total_number_of_shelves;
scanf("%d", &total_number_of_shelves);
// Allocate memory for the total_number_of_books array
total_number_of_books = (int*)malloc(total_number_of_shelves * sizeof(int));
// Allocate memory for the total_number_of_pages array
total_number_of_pages = (int**)malloc(total_number_of_shelves * sizeof(int*));
// Initialize the total_number_of_books array to 0
for (int i = 0; i < total_number_of_shelves; i++) {
total_number_of_books[i] = 0;
}
int total_number_of_queries;
scanf("%d", &total_number_of_queries);
while (total_number_of_queries--) {
int type_of_query;
scanf("%d", &type_of_query);
if (type_of_query == 1) {
/*
* Process the query of the first type here.
*/
int x, y;
scanf("%d %d", &x, &y);
// Increase the number of books on the Xth shelf by 1
total_number_of_books[x]++;
// Reallocate memory for the Xth shelf to accommodate the new book
total_number_of_pages[x] = (int*)realloc(total_number_of_pages[x], total_number_of_books[x] * sizeof(int));
// Store the number of pages of the new book at the end of the Xth shelf
total_number_of_pages[x][total_number_of_books[x] - 1] = y;
} else if (type_of_query == 2) {
int x, y;
scanf("%d %d", &x, &y);
printf("%d\n", *(*(total_number_of_pages + x) + y));
} else {
int x;
scanf("%d", &x);
printf("%d\n", *(total_number_of_books + x));
}
}
if (total_number_of_books) {
free(total_number_of_books);
}
for (int i = 0; i < total_number_of_shelves; i++) {
if (*(total_number_of_pages + i)) {
free(*(total_number_of_pages + i));
}
}
if (total_number_of_pages) {
free(total_number_of_pages);
}
return 0;
}
To embed this project on your website, copy the following code and paste it into your website's HTML: