Compilare: main.cpp: In member function 'std::vector<int> Graph::getTopologicalSort()': main.cpp:169:23: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'const int' [-Wsign-compare] 169 | return result.size() == N_NODES ? result : std::vector<int>(); // if cycle => empty | ~~~~~~~~~~~~~~^~~~~~~~~~ main.cpp: In static member function 'static void Graph::getMaxFlowBipartite(int, int, std::vector<std::pair<int, int> >&, int&)': main.cpp:542:12: warning: unused variable 'INF' [-Wunused-variable] 542 | const int INF = 1e9; | ^~~ main.cpp: In member function 'std::vector<int> Graph::eulerCycle()': main.cpp:716:41: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Graph::Neighbour>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 716 | for (int i = 0; !found_neighbour && i < la[top].size(); ++i) { | ~~^~~~~~~~~~~~~~~~