Compilare: main.cpp: In function 'void kmp(std::string&, int*)': main.cpp:9:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 9 | for(int i = 1; i < s.length(); i++) { | ~~^~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:52:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 52 | for(int i = n + 1; i < s.length(); i++) { | ~~^~~~~~~~~~~~