Compilare: main.cpp: In member function 'virtual long long int OrientedGraph::getCconexe()': main.cpp:73:5: warning: no return statement in function returning non-void [-Wreturn-type] 73 | } | ^ main.cpp: In function 'int main()': main.cpp:126:5: warning: deleting object of abstract class type 'Graph' which has non-virtual destructor will cause undefined behavior [-Wdelete-non-virtual-dtor] 126 | delete g; | ^~~~~~~~ main.cpp:120:15: warning: unused variable 'S' [-Wunused-variable] 120 | int N, M, S; | ^