Compilare: main.cpp:177: warning: ignoring '#pragma region utilities' [-Wunknown-pragmas] 177 | #pragma region utilities | main.cpp:230: warning: ignoring '#pragma endregion ' [-Wunknown-pragmas] 230 | #pragma endregion | main.cpp:233: warning: ignoring '#pragma region Homework1_private' [-Wunknown-pragmas] 233 | #pragma region Homework1_private | main.cpp:386: warning: ignoring '#pragma endregion ' [-Wunknown-pragmas] 386 | #pragma endregion | main.cpp:388: warning: ignoring '#pragma region Homework1_solutions' [-Wunknown-pragmas] 388 | #pragma region Homework1_solutions | main.cpp:491: warning: ignoring '#pragma endregion ' [-Wunknown-pragmas] 491 | #pragma endregion | main.cpp:495: warning: ignoring '#pragma region Homework2' [-Wunknown-pragmas] 495 | #pragma region Homework2 | main.cpp:598: warning: ignoring '#pragma endregion ' [-Wunknown-pragmas] 598 | #pragma endregion | main.cpp:600: warning: ignoring '#pragma region Homework2_solve' [-Wunknown-pragmas] 600 | #pragma region Homework2_solve | main.cpp:650: warning: ignoring '#pragma endregion ' [-Wunknown-pragmas] 650 | #pragma endregion | main.cpp: In member function 'int Graph::solve_tree_diameter()': main.cpp:661:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 661 | for(int i = 0;i<distances1.size();i++) | ~^~~~~~~~~~~~~~~~~~ main.cpp:669:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 669 | for(int i = 0;i<distances2.size();i++) | ~^~~~~~~~~~~~~~~~~~