Compilare: main.cpp: In member function 'void Trie::Insert(std::string, int)': main.cpp:14:23: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 14 | if(str.size() == pos) | ~~~~~~~~~~~^~~~~~ main.cpp: In member function 'void Trie::Erase(std::string, int)': main.cpp:26:23: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 26 | if(str.size() == pos) | ~~~~~~~~~~~^~~~~~ main.cpp: In member function 'int Trie::Count(std::string, int)': main.cpp:40:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 40 | if(pos == str.size()) | ~~~~^~~~~~~~~~~~~ main.cpp: In member function 'int Trie::LCP(std::string, int)': main.cpp:48:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 48 | if(pos == str.size()) | ~~~~^~~~~~~~~~~~~