Compilare: main.cpp: In member function 'bool UndirectedGraph::havelHakimi(std::vector<int>)': main.cpp:249:23: warning: comparison of integer expressions of different signedness: '__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type' {aka 'int'} and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 249 | if(degrees[0] > degrees.size() - loops) main.cpp: In member function 'std::stack<int> DirectedGraph::topologicalSorting()': main.cpp:374:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<bool>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 374 | for(int node = 1; node < visited.size(); ++node) | ~~~~~^~~~~~~~~~~~~~~~ main.cpp: In function 'std::vector<std::vector<int> > CRITICAL_CONN_LEETCODE(int, std::vector<std::vector<int> >&)': main.cpp:527:31: warning: comparison of integer expressions of different signedness: 'unsigned int' and 'int' [-Wsign-compare] 527 | for(unsigned int i = 0; i < m ; ++i) | ~~^~~ main.cpp: In function 'void HAVEL_HAKIMI()': main.cpp:535:12: warning: unused variable 'm' [-Wunused-variable] 535 | int n, m, x, y; | ^ main.cpp:535:15: warning: unused variable 'x' [-Wunused-variable] 535 | int n, m, x, y; | ^ main.cpp:535:18: warning: unused variable 'y' [-Wunused-variable] 535 | int n, m, x, y; | ^