Compilare: main.cpp: In member function 'void Node::addword(std::string, int)': main.cpp:27:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 27 | if (poz == cuv.size() - 1) | ~~~~^~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Node::deleteword(std::string, int)': main.cpp:38:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 38 | if (poz == cuv.size() - 1) | ~~~~^~~~~~~~~~~~~~~~~ main.cpp: In member function 'int Node::countap(std::string, int)': main.cpp:63:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 63 | if (poz == cuv.size() - 1) | ~~~~^~~~~~~~~~~~~~~~~ main.cpp: In member function 'int Node::longestcommonprefix(std::string, int)': main.cpp:75:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 75 | if (poz == cuv.size() - 1) | ~~~~^~~~~~~~~~~~~~~~~