Compilare: main.cpp: In function 'void adauga(std::string&, int, Trie*)': main.cpp:19:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 19 | if (poz==s.size()) | ~~~^~~~~~~~~~ main.cpp: In function 'void sterge(std::string&, int, Trie*)': main.cpp:33:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 33 | if (poz==s.size()) | ~~~^~~~~~~~~~ main.cpp: In function 'void parcurge(std::string&, std::string&, int, Trie*)': main.cpp:59:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 59 | if (poz==sx.size()) | ~~~^~~~~~~~~~~