Compilare: main.cpp:193: warning: ignoring '#pragma region Utility' [-Wunknown-pragmas] 193 | #pragma region Utility | main.cpp:264: warning: ignoring '#pragma endregion ' [-Wunknown-pragmas] 264 | #pragma endregion | main.cpp:267: warning: ignoring '#pragma region Homework1_private' [-Wunknown-pragmas] 267 | #pragma region Homework1_private | main.cpp:420: warning: ignoring '#pragma endregion ' [-Wunknown-pragmas] 420 | #pragma endregion | main.cpp:423: warning: ignoring '#pragma region Homework1_solutions' [-Wunknown-pragmas] 423 | #pragma region Homework1_solutions | main.cpp:575: warning: ignoring '#pragma endregion ' [-Wunknown-pragmas] 575 | #pragma endregion | main.cpp:579: warning: ignoring '#pragma region Homework2' [-Wunknown-pragmas] 579 | #pragma region Homework2 | main.cpp:682: warning: ignoring '#pragma endregion ' [-Wunknown-pragmas] 682 | #pragma endregion | main.cpp:684: warning: ignoring '#pragma region Homework2_solve' [-Wunknown-pragmas] 684 | #pragma region Homework2_solve | main.cpp:734: warning: ignoring '#pragma endregion ' [-Wunknown-pragmas] 734 | #pragma endregion | main.cpp:854: warning: ignoring '#pragma region Homework4' [-Wunknown-pragmas] 854 | #pragma region Homework4 | main.cpp:939: warning: ignoring '#pragma endregion ' [-Wunknown-pragmas] 939 | #pragma endregion | main.cpp: In function 'int main()': main.cpp:184:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 184 | for(int i = 1;i<costs.size();i++) | ~^~~~~~~~~~~~~ main.cpp: In function 'bool solve_havel_hakimi(std::vector<int>)': main.cpp:559:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 559 | if(current > degrees.size()) | ~~~~~~~~^~~~~~~~~~~~~~~~ main.cpp: In member function 'int Graph::solve_tree_diameter()': main.cpp:745:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 745 | for(int i = 0;i<distances1.size();i++) | ~^~~~~~~~~~~~~~~~~~ main.cpp:753:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 753 | for(int i = 0;i<distances2.size();i++)