Compilare: main.cpp: In function 'std::vector<int> toposort(const Graph&)': main.cpp:16:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 16 | for (int node = 1; node < g.size(); node++) | ~~~~~^~~~~~~~~~ main.cpp:22:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 22 | for (int node = 1; node < g.size(); node++) | ~~~~~^~~~~~~~~~ main.cpp:27:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 27 | for (int i = 0; i < ans.size(); i++) | ~~^~~~~~~~~~~~