Compilare: main.cpp: In function 'int main()': main.cpp:23:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 23 | for(int i = 0; i < s.size(); ++ i){ | ~~^~~~~~~~~~ main.cpp:55:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 55 | for(int i = 0; i < s.size(); ++ i){ | ~~^~~~~~~~~~ main.cpp:34:9: warning: unused variable 'sz_lng_max' [-Wunused-variable] 34 | int sz_lng_max = 0; | ^~~~~~~~~~