Compilare: main.cpp: In member function 'void TRIE::insert(std::string, int, Nod*)': main.cpp:20:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 20 | if(poz == s.size()) | ~~~~^~~~~~~~~~~ main.cpp: In member function 'void TRIE::erase(std::string, int, Nod*)': main.cpp:35:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 35 | if(poz == s.size()) | ~~~~^~~~~~~~~~~ main.cpp: In member function 'int TRIE::count(std::string, int, Nod*)': main.cpp:49:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 49 | for (int i = 0; i < s.size(); i ++) | ~~^~~~~~~~~~ main.cpp: In member function 'int TRIE::longest_prefix(std::string, int, Nod*)': main.cpp:61:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 61 | if(poz == s.size()) | ~~~~^~~~~~~~~~~