Compilare: main.cpp: In function 'int main()': main.cpp:22:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 22 | for (i = 1; i < s.size(); i++) | ~~^~~~~~~~~~ main.cpp:27:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 27 | while (r < s.size() && s[r] == s[r - l]) | ~~^~~~~~~~~~ main.cpp:40:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 40 | while (r < s.size() && s[r] == s[r - l]) | ~~^~~~~~~~~~ main.cpp:47:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 47 | for (i = 0; i < s.size(); i++) | ~~^~~~~~~~~~ main.cpp:49:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 49 | if (z[i] + i == s.size() && i - z[i] >= 0) | ~~~~~~~~~^~~~~~~~~~~ main.cpp:18:52: warning: unused variable 'ok' [-Wunused-variable] 18 | int i, l = 0, r = 0, p = 0, cnt = 0, maxx = 0, ok; | ^~