Compilare: user.cpp: In function ‘void DF(int, int)’: user.cpp:91:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<Aux.size(); i++) ^ user.cpp: In function ‘void DoBiconnected()’: user.cpp:129:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<Components.size(); i++) ^ user.cpp: In function ‘void Go()’: user.cpp:242:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=1; i<Itinerary.size(); i+=2) ^ user.cpp: In function ‘void FindPath()’: user.cpp:291:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<Path.size(); i++) ^ user.cpp:295:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j=i; j<Path.size(); j++) ^ user.cpp: In function ‘void Print()’: user.cpp:348:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<ANS.size(); i++) ^ user.cpp:360:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<aux.size(); i++) ^