Compilare: main.cpp: In function 'int main()': main.cpp:34:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 34 | for(int i = 0; i < s.size(); i++) { | ~~^~~~~~~~~~ main.cpp:41:34: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 41 | for(int i = 0; i < rez.size() - last; i++) | ~~^~~~~~~~~~~~~~~~~~~