Eroare de compilare: main.cpp: In function 'int main()': main.cpp:20:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 20 | for (int i = 0; i < s.size(); ++i) | ~~^~~~~~~~~~ main.cpp:40:2: error: 'reverse' was not declared in this scope 40 | reverse(aux.begin(), aux.end()); | ^~~~~~~ Non zero exit status: 1