Eroare de compilare: user.cpp: In member function ‘void nrx_treap::update_reverse(nrx_treap::treap_node*&)’: user.cpp:34:61: error: ‘nrx_swap’ was not declared in this scope nrx_swap( node -> left_node, node -> right_node ); ^ user.cpp: In function ‘int main()’: user.cpp:208:42: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf( input_file, "%d %d", &N, &M ); ^ user.cpp:214:53: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf( input_file, "%d %d %d", &X, &Y, &K ); ^