Compilare: main.cpp: In member function 'void Trie::addWord(const std::string&, int)': main.cpp:18:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 18 | if(poz==s.size()-1)fii[c]->nrCuv++; | ~~~^~~~~~~~~~~~ main.cpp: In member function 'void Trie::deleteWord(const std::string&, int)': main.cpp:25:15: 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(poz==s.size()-1)fii[c]->nrCuv--; | ~~~^~~~~~~~~~~~ main.cpp: In member function 'int Trie::countAp(const std::string&, int)': main.cpp:36:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 36 | if(poz==s.size()-1)return fii[c]->nrCuv; | ~~~^~~~~~~~~~~~ main.cpp: In member function 'int Trie::longestPrefix(const std::string&, int)': main.cpp:43:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 43 | if(poz==s.size()-1)return 1; | ~~~^~~~~~~~~~~~