Compilare: main.cpp: In function 'void add_string(std::string, int)': main.cpp:29:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 29 | for (int j=0; j<s2.size(); j++) | ~^~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:99:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Aho_Corasick>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 99 | for (int j=0; j<V.size(); j++) | ~^~~~~~~~~ main.cpp:114:14: warning: variable 'salut' set but not used [-Wunused-but-set-variable] 114 | auto salut = V[spate]; | ^~~~~ main.cpp:115:14: warning: variable 'Acum' set but not used [-Wunused-but-set-variable] 115 | auto Acum = V[acum]; | ^~~~ main.cpp:141:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 141 | for (int j=0; j<s.size(); j++) | ~^~~~~~~~~ main.cpp: In constructor 'Aho_Corasick::Aho_Corasick(int, int)': main.cpp:21:25: warning: iteration 26 invokes undefined behavior [-Waggressive-loop-optimizations] 21 | go[i]=urm[i]=-1; | ~~~~~~^~~ main.cpp:19:24: note: within this loop 19 | for (int i=0; i<=26; i++) | ~^~~~