Compilare: main.cpp: In function 'int main()': main.cpp:14:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 14 | for(int i = 1 ; i < B.size () ; ++ i){ | ~~^~~~~~~~~~~ main.cpp:17:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 17 | while (i + z [i] < B.size () && B [z [i]] == B [i + z [i]]) | ~~~~~~~~~~^~~~~~~~~~~ main.cpp:25:35: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 25 | for(int i = A.size () + 1 ; i < B.size (); ++ i) | ~~^~~~~~~~~~~ main.cpp:26:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 26 | if (z [i] == A.size ()){ | ~~~~~~^~~~~~~~~~~~