Compilare: main.cpp: In member function 'void graf::sortaret(int, bool*, std::stack<int>&)': main.cpp:179:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 179 | for (int i = 0; i < adj[nod].size(); ++i) | ~~^~~~~~~~~~~~~~~~~ main.cpp: In member function 'void graf::apm()': main.cpp:333:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 333 | for (int i = 0; i < mst.size(); i++) | ~~^~~~~~~~~~~~ main.cpp: In member function 'void graf::dijkstra()': main.cpp:432:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 432 | for (int i = 0; i < adj[nod].size(); ++i) | ~~^~~~~~~~~~~~~~~~~ main.cpp: In member function 'void graf::darb(int, int, int, int*)': main.cpp:495:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 495 | for(int i = 0; i < adj[curr].size(); i++) | ~~^~~~~~~~~~~~~~~~~~ main.cpp: In member function 'int graf::eulerian()': main.cpp:566:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 566 | for (int i = 0; i < sol.size() - 1; i++) | ~~^~~~~~~~~~~~~~~~