Compilare: main.cpp: In member function 'void BiconexCalculator::calculate(std::vector<std::vector<int> >&)': main.cpp:23:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<graph.size(); ++i) ~^~~~~~~~~~~~~ main.cpp: In member function 'std::vector<std::vector<int> > BiconexCalculator::getBCCGraph(std::vector<std::vector<int> >&)': main.cpp:45:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<components.size(); ++i) { ~^~~~~~~~~~~~~~~~~~