Compilare: user.cpp: In function ‘void visit(int)’: user.cpp:49:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < g[k].size (); i++) ^ user.cpp: In function ‘void addToComponent(int, std::vector<int>*)’: user.cpp:60:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < gt[k].size (); i++) ^ user.cpp: In function ‘bool sat2()’: user.cpp:79:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < component->size(); i++) { ^ user.cpp:95:47: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j < componentVector[i].size(); j++) ^