Compilare: main.cpp: In function 'void solMic(std::string, std::vector<int>)': main.cpp:39:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 39 | for(int i=0;i<a.size();++i) | ~^~~~~~~~~ main.cpp: In function 'void solMare(std::string, std::vector<int>)': main.cpp:83:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 83 | for(int i=0;i<a.size();++i) | ~^~~~~~~~~