Compilare: main.cpp: In member function 'huge huge::operator*(int)': main.cpp:55:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 55 | for(int i = 0; i < s.size(); i ++) | ~~^~~~~~~~~~