Compilare: main.cpp: In member function 'void graf::ctc(unsigned int)': main.cpp:300:23: warning: comparison of integer expressions of different signedness: 'int' and 'unsigned int' [-Wsign-compare] 300 | for(int i=1; i<=this->n; ++i) | ~^~~~~~~~~ main.cpp: In member function 'std::vector<std::vector<int> > graf::criticalConnections(int, std::vector<std::vector<int> >&)': main.cpp:421:16: warning: comparison of integer expressions of different signedness: 'unsigned int' and 'int' [-Wsign-compare] 421 | for (i=0; i<n; ++i) | ~^~