Compilare: user.cpp: In function ‘bool inter(std::string, std::string)’: user.cpp:11:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < szo1.size(); i++){ ^ user.cpp:15:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(counter == szo2.size()){ ^ user.cpp: In function ‘int main()’: user.cpp:37:45: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < akt.size(); j++){ ^ user.cpp:80:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < szavak.size(); i++) ^