Compilare: main.cpp: In function 'int main()': main.cpp:20:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 20 | for(int i = 1; i < s.size(); i ++) { | ~~^~~~~~~~~~ main.cpp:23:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 23 | while(i + z[i] < s.size() && s[i + z[i]] == s[z[i]]) | ~~~~~~~~~^~~~~~~~~~ main.cpp:36:34: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 36 | for (int i = len; i <= s.size() - 2 * len; i++) { | ~~^~~~~~~~~~~~~~~~~~~~~ main.cpp:45:44: 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 (int i = oldFinish + 1; i <= s.size() - 2 * len; i++) { | ~~^~~~~~~~~~~~~~~~~~~~~