Compilare: main.cpp: In function 'void AfiseazaLista(std::vector<std::vector<int> >)': main.cpp:25:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 25 | for (int i = 1; i < lista.size(); i ++) | ~~^~~~~~~~~~~~~~ main.cpp:28:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 28 | for (int j = 0; j < lista[i].size(); j ++) | ~~^~~~~~~~~~~~~~~~~