Compilare: main.cpp: In function 'int main()': main.cpp:41:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<ura>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 41 | for ( int j = 0; j < | ~~^ 42 | aux[i].size(); j++) | ~~~~~~~~~~~~~