Compilare: main.cpp: In function 'std::__cxx11::string guess(int, int)': main.cpp:42:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (i < v.length() && j < w.length()){ ~~^~~~~~~~~~~~ main.cpp:42:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (i < v.length() && j < w.length()){ ~~^~~~~~~~~~~~ main.cpp:48:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int poz=j;poz<w.length();poz++) ~~~^~~~~~~~~~~ main.cpp:51:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (query(aux) == aux.length()){ ~~~~~~~~~~~^~~~~~~~~~~~~~~ main.cpp:61:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (;i<v.length();i++) ~^~~~~~~~~~~ main.cpp:63:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (;j<w.length();j++) ~^~~~~~~~~~~