Compilare: main.cpp: In function 'int main()': main.cpp:40:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 40 | for (int i = 0; i < s.size(); ++i) { | ~~^~~~~~~~~~ main.cpp:45:35: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 45 | } else if (str.size() > maxim && verify(str)) { | ~~~~~~~~~~~^~~~~~~ main.cpp:39:9: warning: unused variable 'str_start_pos' [-Wunused-variable] 39 | int str_start_pos = 0, str_final_pos = 0, maxim = 1; | ^~~~~~~~~~~~~