Compilare: main.cpp: In member function 'void graf::dfs(int)': main.cpp:17:35: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 17 | for (int index = 0; index < muchii[node].size(); ++index) { | ~~~~~~^~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'std::vector<int> graf::bfs(int)': main.cpp:56:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 56 | for (int i = 0; i < muchii[nod].size(); ++i) | ~~^~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void graf::dfsSortareTopologica(int, std::stack<int>&)': main.cpp:70:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 70 | for (int i = 0; i < muchii[nod].size(); ++i) | ~~^~~~~~~~~~~~~~~~~~~~