Compilare: main.cpp: In member function 'void trieNod::adaugam(int, std::string&, int)': main.cpp:52:20: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 52 | if(s.size()==poz) | ~~~~~~~~^~~~~ main.cpp:59:16: warning: array subscript has type 'char' [-Wchar-subscripts] 59 | if(urm[litera]==nullptr) | ^~~~~~ main.cpp:61:17: warning: array subscript has type 'char' [-Wchar-subscripts] 61 | urm[litera] = new trieNod(this); | ^~~~~~ main.cpp:63:13: warning: array subscript has type 'char' [-Wchar-subscripts] 63 | urm[litera]->adaugam(ind,s, poz+1); | ^~~~~~