Eroare de compilare: main.cpp:10:1: error: new types may not be defined in a return type 10 | class Graph { | ^~~~~ main.cpp:10:1: note: (perhaps a semicolon is missing after the definition of 'Graph') main.cpp:10:1: error: return type specification for constructor invalid main.cpp: In member function 'void Graph::DFS(int, std::vector<int>&)': main.cpp:65:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, double> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 65 | for(int i = 0; i < edges[start].size(); ++i) | ~~^~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'std::stack<int> DirectedGraph::TopologicalSorting()': main.cpp:209:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<bool>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 209 | for(int node = 1; node < visited.size(); ++node) | ~~~~~^~~~~~~~~~~~~~~~ main.cpp: In member function 'std::vector<std::vector<int> > UndirectedGraph::criticalEdges()': main.cpp:344:9: warning: unused variable 'counterID' [-Wunused-variable] 344 | int counterID = 0; | ^~~~~~~~~ main.cpp: In member function 'bool UndirectedGraph::havelHakimi(std::vector<int>)': main.cpp:395:23: 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] 395 | if(degrees[0] > degrees.size() - loops) main.cpp: In function 'int main()': main.cpp:434:20: warning: unused variable 's' [-Wunused-variable] 434 | int n, m, x, y,s; | ^ Non zero exit status: 1