Compilare: main.cpp: In member function 'int Trie::answer_(Node*, int)': main.cpp:59:26: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister] 59 | for(register int i=0;i<='z'-'a';i++) | ^ main.cpp: In function 'int main()': main.cpp:74:26: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister] 74 | for(register int i=0;i<n;i++) | ^ main.cpp:77:26: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister] 77 | for(register int j=0;j<s.size();j++) | ^ main.cpp:77:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 77 | for(register int j=0;j<s.size();j++) | ~^~~~~~~~~ main.cpp:81:22: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister] 81 | for(register int i=0;i<m;i++) | ^ main.cpp:84:26: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister] 84 | for(register int j=0;j<s.size();j++) | ^ main.cpp:84:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 84 | for(register int j=0;j<s.size();j++) | ~^~~~~~~~~