Compilare: main.cpp: In member function 'virtual long long int OrientedGraph::getCconexe()': main.cpp:73:45: warning: no return statement in function returning non-void [-Wreturn-type] 73 | virtual long long getCconexe() override{} | ^ main.cpp: In member function 'virtual void UnorientedGraph::dfsBCC(int)': main.cpp:142:14: warning: unused variable 'copii' [-Wunused-variable] 142 | unsigned copii = 0; | ^~~~~ main.cpp: In function 'int main()': main.cpp:185:22: warning: comparison of integer expressions of different signedness: 'int' and 'unsigned int' [-Wsign-compare] 185 | for(int i = 0; i < cnt; ++i){ | ~~^~~~~ main.cpp:191:5: warning: deleting object of abstract class type 'Graph' which has non-virtual destructor will cause undefined behavior [-Wdelete-non-virtual-dtor] 191 | delete g; | ^~~~~~~~ main.cpp:179:15: warning: unused variable 'S' [-Wunused-variable] 179 | int N, M, S; | ^