Compilare: main.cpp: In function 'int main()': main.cpp:57:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 57 | for (i = 1; i < s.size(); i++) | ~~^~~~~~~~~~ main.cpp:62:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 62 | while (r < s.size() && s[r] == s[r - l]) | ~~^~~~~~~~~~ main.cpp:75:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 75 | while (r < s.size() && s[r] == s[r - l]) | ~~^~~~~~~~~~ main.cpp:82:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 82 | for (i = 0; i < s.size(); i++) | ~~^~~~~~~~~~ main.cpp:84:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 84 | if (z[i] + i == s.size() && i - z[i] >= 0) | ~~~~~~~~~^~~~~~~~~~~ main.cpp:90:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 90 | for (i = 0; i < s.size(); i++) | ~~^~~~~~~~~~ main.cpp:99:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 99 | for (i = 0; i <= s.size() + 1; i++) | ~~^~~~~~~~~~~~~~~ main.cpp:103:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 103 | for (i = 0; i < s.size(); i++) | ~~^~~~~~~~~~ main.cpp:52:52: warning: unused variable 'ok' [-Wunused-variable] 52 | int i, l = 0, r = 0, p = 0, cnt = 0, maxx = 0, ok; | ^~