Compilare: main.cpp: In function 'void get_kmp(bool)': main.cpp:38:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 38 | for (int i = 1 ; i < s.length() ; ++ i) | ~~^~~~~~~~~~~~ main.cpp:49:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 49 | while (i < s.length()) | ~~^~~~~~~~~~~~ main.cpp:51:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 51 | while (i < s.length() && kmp[i] != 1) | ~~^~~~~~~~~~~~ main.cpp:54:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 54 | while (j + 1 < s.length() && kmp[j + 1] == kmp[j] + 1) | ~~~~~~^~~~~~~~~~~~