Compilare: main.cpp: In member function 'void TrieNode::insert(std::string&, int)': main.cpp:29:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 29 | if(poz == word.size()) | ~~~~^~~~~~~~~~~~~~ main.cpp: In member function 'void TrieNode::erase(std::string&, int)': main.cpp:49:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 49 | if(poz == word.size()) | ~~~~^~~~~~~~~~~~~~ main.cpp: In member function 'int TrieNode::nr_app(std::string&, int)': main.cpp:65:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 65 | if(poz == word.size()) | ~~~~^~~~~~~~~~~~~~ main.cpp: In member function 'int TrieNode::prefix(std::string&, int)': main.cpp:82:82: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 82 | if(edges[edgeidx] == nullptr or edges[edgeidx] -> subtreecnt == 0 or poz == word.size()) | ~~~~^~~~~~~~~~~~~~