Compilare: main.cpp: In member function 'void Graph::SortareTopologica()': main.cpp:43:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 43 | for (int j = 0; j < _list[i].size(); j++) | ~~^~~~~~~~~~~~~~~~~ main.cpp:60:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 60 | for (int i = 0; i < _list[varf].size(); i++) { | ~~^~~~~~~~~~~~~~~~~~~~