Compilare: main.cpp: In member function 'void AhoCorasickAutomaton::addWordTrie(Vertex*, std::string, int)': main.cpp:59:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 59 | for(int i=0; i<s.length(); i++){ | ~^~~~~~~~~~~ main.cpp:60:18: warning: unused variable 'parent' [-Wunused-variable] 60 | auto parent = node; | ^~~~~~ main.cpp: In member function 'void AhoCorasickAutomaton::searchText(std::string&, int*)': main.cpp:154:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 154 | for(int i=0; i<text.length(); i++){ | ~^~~~~~~~~~~~~~