Compilare: main.cpp: In constructor 'data::data(int, int, std::vector<std::vector<int> >)': main.cpp:16:35: warning: 'data::values' will be initialized after [-Wreorder] 16 | std::vector<std::vector<int>> values; | ^~~~~~ main.cpp:14:9: warning: 'int data::friends_number' [-Wreorder] 14 | int friends_number = 0; | ^~~~~~~~~~~~~~ main.cpp:11:5: warning: when initialized here [-Wreorder] 11 | data(int a, int b, std::vector<std::vector<int>> values) | ^~~~