Compilare: main.cpp: In member function 'void KMP_Automaton::build()': main.cpp:43:37: warning: array subscript has type 'char' [-Wchar-subscripts] 43 | current->next[pattern[i]] = new AutomatonState(current->length + 1); | ^ main.cpp:47:37: warning: array subscript has type 'char' [-Wchar-subscripts] 47 | current->next[pattern[i]]->fail = failState; | ^ main.cpp:50:47: warning: array subscript has type 'char' [-Wchar-subscripts] 50 | current = current->next[pattern[i]]; | ^ main.cpp: In member function 'KMP_Automaton::AutomatonState* KMP_Automaton::AddChar(AutomatonState*, char)': main.cpp:56:38: warning: array subscript has type 'char' [-Wchar-subscripts] 56 | while (state && !state->next[c]) { | ^ main.cpp:59:36: warning: array subscript has type 'char' [-Wchar-subscripts] 59 | return state ? state->next[c] : root; // Return the next state or root if no transition | ^ main.cpp: In function 'std::vector<int> kmpSearch(const std::string&, const std::string&)': main.cpp:69:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 69 | for (int i = 0; i < text.size(); ++i) { | ~~^~~~~~~~~~~~~ main.cpp:72:29: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 72 | if (current->length == pattern.size()) { // If we reached a state that matches the entire pattern | ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~ main.cpp: In function 'std::vector<int> kmpSearchConcat(const std::string&, const std::string&)': main.cpp:86:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 86 | for (int i = 1; i < concat.size(); ++i) { | ~~^~~~~~~~~~~~~~~ main.cpp: In function 'std::vector<int> rollingHashSearch(const std::string&, const std::string&)': main.cpp:179:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 179 | for (int i = 0; i <= text.size() - m; ++i) { | ~~^~~~~~~~~~~~~~~~~~