Eroare de compilare: main.cpp: In function 'std::string Eval(std::string)': main.cpp:13:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 13 | for (int i = 0; i < t.length(); i++) | ~~^~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:41:16: error: invalid conversion from 'const char*' to 'int' [-fpermissive] 41 | return ":)"; | ^~~~ | | | const char* Non zero exit status: 1