Compilare: main.cpp: In function 'void solve()': main.cpp:69:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::__cxx11::basic_string<char> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 69 | for (int i = 0; i < maybeSol.size(); i++) { | ~~^~~~~~~~~~~~~~~~~ main.cpp:71:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::__cxx11::basic_string<char> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 71 | for (int j = i + 1; j < maybeSol.size(); j++) { | ~~^~~~~~~~~~~~~~~~~