Compilare: main.cpp: In function 'void Insert(std::string&, Trie*, int)': main.cpp:27:11: 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(pos==w.size()) | ~~~^~~~~~~~~~ main.cpp: In function 'void Delete(std::string&, Trie*, int)': main.cpp:48:11: 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==w.size()) | ~~~^~~~~~~~~~ main.cpp: In function 'int Query1(std::string&, Trie*, int)': main.cpp:65:11: 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(pos==w.size()) | ~~~^~~~~~~~~~ main.cpp: In function 'int Query2(std::string&, Trie*, int)': main.cpp:80:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 80 | if(pos==w.size()) | ~~~^~~~~~~~~~