Compilare: main.cpp: In function 'int main()': main.cpp:55:14: warning: unused variable 'node1' [-Wunused-variable] 55 | int node1 = sorting.top().second.first, node2 = sorting.top().second.second; | ^~~~~ main.cpp:55:50: warning: unused variable 'node2' [-Wunused-variable] 55 | int node1 = sorting.top().second.first, node2 = sorting.top().second.second; | ^~~~~