Compilare: main.cpp:187: warning: ignoring '#pragma region Utility' [-Wunknown-pragmas] 187 | #pragma region Utility | main.cpp:240: warning: ignoring '#pragma endregion ' [-Wunknown-pragmas] 240 | #pragma endregion | main.cpp:243: warning: ignoring '#pragma region Homework1_private' [-Wunknown-pragmas] 243 | #pragma region Homework1_private | main.cpp:395: warning: ignoring '#pragma endregion ' [-Wunknown-pragmas] 395 | #pragma endregion | main.cpp:397: warning: ignoring '#pragma region Homework1_solutions' [-Wunknown-pragmas] 397 | #pragma region Homework1_solutions | main.cpp:480: warning: ignoring '#pragma endregion ' [-Wunknown-pragmas] 480 | #pragma endregion | main.cpp:484: warning: ignoring '#pragma region Homework2' [-Wunknown-pragmas] 484 | #pragma region Homework2 | main.cpp:587: warning: ignoring '#pragma endregion ' [-Wunknown-pragmas] 587 | #pragma endregion | main.cpp:589: warning: ignoring '#pragma region Homework2_solve' [-Wunknown-pragmas] 589 | #pragma region Homework2_solve | main.cpp:639: warning: ignoring '#pragma endregion ' [-Wunknown-pragmas] 639 | #pragma endregion | main.cpp: In member function 'int Graph::solve_tree_diameter()': main.cpp:650:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 650 | for(int i = 0;i<distances1.size();i++) | ~^~~~~~~~~~~~~~~~~~ main.cpp:658:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 658 | for(int i = 0;i<distances2.size();i++) | ~^~~~~~~~~~~~~~~~~~