Compilare: main.cpp: In function 'void ins(Trie*, std::string&, int)': main.cpp:25:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 25 | if (i == x.size()) | ~~^~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:84:9: warning: unused variable 'cnt' [-Wunused-variable] 84 | int cnt = 0; | ^~~