Compilare: main.cpp: In function 'void adauga(const std::string&, Node*, int)': main.cpp:20:12: 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 == word.size()) | ~~~~^~~~~~~~~~~~~~ main.cpp: In function 'bool sterge(const std::string&, Node*, int)': main.cpp:35:12: 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 == word.size()) | ~~~~^~~~~~~~~~~~~~ main.cpp: In function 'int word_count(const std::string&, Node*, int)': main.cpp:52:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 52 | if(poz == word.size()) | ~~~~^~~~~~~~~~~~~~ main.cpp: In function 'int longest_prefix(const std::string&, Node*, int)': main.cpp:61:12: 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 == word.size() || node->children[word[poz] - 'a'] == nullptr) | ~~~~^~~~~~~~~~~~~~