Compilare: main.cpp: In function 'int main()': main.cpp:45:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 45 | for (i = 1; i < s.size(); i++) | ~~^~~~~~~~~~ main.cpp:50:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 50 | while (r < s.size() && s[r] == s[r - l]) | ~~^~~~~~~~~~ main.cpp:63:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 63 | while (r < s.size() && s[r] == s[r - l]) | ~~^~~~~~~~~~ main.cpp:70:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 70 | for (i = 0; i < s.size(); i++) | ~~^~~~~~~~~~ main.cpp:72:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 72 | if (z[i] + i == s.size() && i - z[i] >= 0) | ~~~~~~~~~^~~~~~~~~~~ main.cpp:77:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 77 | for (i = 0; i < s.size(); i++) | ~~^~~~~~~~~~