Compilare: main.cpp: In function 'void Add(Trie*, int)': main.cpp:20:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 20 | if(pos==s.size()) | ~~~^~~~~~~~~~ main.cpp: In function 'bool Delete(Trie*, int)': main.cpp:35:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 35 | if(pos==s.size()) | ~~~^~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:68:10: warning: variable 'ok' set but not used [-Wunused-but-set-variable] 68 | bool ok; | ^~