Compilare: main.cpp: In function 'void Insert(Trie*, int, int)': main.cpp:26:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 26 | if(poz == s.size()) | ~~~~^~~~~~~~~~~ main.cpp: In function 'void Delete(Trie*, int, int)': main.cpp:45:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 45 | if(poz == s.size() || p -> fiu[s[poz] - 'a'] == 0) | ~~~~^~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:64:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 64 | for(int j = 0; j < s.size(); j++) | ~~^~~~~~~~~~ main.cpp:71:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 71 | for(int j = 0; j < s.size() - 1 && ans > 0;j++) | ~~^~~~~~~~~~~~~~