Compilare: main.cpp: In member function 'int _trie::nr_words(const char*)': main.cpp:70:32: warning: control reaches end of non-void function [-Wreturn-type] 70 | this->Fiu[nr]->nr_words(word + 1); | ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~ main.cpp: In member function 'int _trie::prefix_len(const char*)': main.cpp:81:34: warning: control reaches end of non-void function [-Wreturn-type] 81 | this->Fiu[nr]->prefix_len(word + 1); | ~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~