Compilare: main.cpp: In member function 'void TrieNode::add(const std::string&, int)': main.cpp:23:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 23 | if (depth == s.size()) { | ~~~~~~^~~~~~~~~~~ main.cpp: In member function 'void TrieNode::remove(const std::string&, int)': main.cpp:37:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 37 | if (depth == s.size()) { | ~~~~~~^~~~~~~~~~~ main.cpp: In member function 'int TrieNode::findWordsEnded(const std::string&, int)': main.cpp:57:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 57 | if (depth == s.size()) { | ~~~~~~^~~~~~~~~~~