Compilare: main.cpp: In function 'void adauga(int, const std::string&, int)': main.cpp:15:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 15 | if (i == cuvant.size()) { | ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'void sterge(int, const std::string&, int)': main.cpp:28:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 28 | if (i == cuvant.size()) { | ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'int aparitii(int, const std::string&, int)': main.cpp:41:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 41 | if (i == cuvant.size()) { | ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'int prefix(int, const std::string&, int)': main.cpp:52:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 52 | if (i == cuvant.size() || trieNodes[nod].fiu[cuvant[i] - 'a'] == -1) { | ~~^~~~~~~~~~~~~~~~