Compilare: main.cpp: In function 'long long int convert(std::string)': main.cpp:11:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 11 | for(int j=0;j<str.size();j++) | ~^~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:34:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 34 | for(int i=0;i<basestr.size();i++) | ~^~~~~~~~~~~~~~~