Compilare: main.cpp:170: warning: ignoring '#pragma region utilities' [-Wunknown-pragmas] 170 | #pragma region utilities | main.cpp:223: warning: ignoring '#pragma endregion ' [-Wunknown-pragmas] 223 | #pragma endregion | main.cpp:226: warning: ignoring '#pragma region Homework1_private' [-Wunknown-pragmas] 226 | #pragma region Homework1_private | main.cpp:379: warning: ignoring '#pragma endregion ' [-Wunknown-pragmas] 379 | #pragma endregion | main.cpp:381: warning: ignoring '#pragma region Homework1_solutions' [-Wunknown-pragmas] 381 | #pragma region Homework1_solutions | main.cpp:484: warning: ignoring '#pragma endregion ' [-Wunknown-pragmas] 484 | #pragma endregion | main.cpp:488: warning: ignoring '#pragma region Homework2' [-Wunknown-pragmas] 488 | #pragma region Homework2 | main.cpp:591: warning: ignoring '#pragma endregion ' [-Wunknown-pragmas] 591 | #pragma endregion | main.cpp:593: warning: ignoring '#pragma region Homework2_solve' [-Wunknown-pragmas] 593 | #pragma region Homework2_solve | main.cpp:643: warning: ignoring '#pragma endregion ' [-Wunknown-pragmas] 643 | #pragma endregion | main.cpp: In member function 'int Graph::solve_tree_diameter()': main.cpp:654:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 654 | for(int i = 0;i<distances1.size();i++) | ~^~~~~~~~~~~~~~~~~~ main.cpp:662:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 662 | for(int i = 0;i<distances2.size();i++) | ~^~~~~~~~~~~~~~~~~~