Compilare: main.cpp: In function 'int main()': main.cpp:17:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 17 | for (int right = 0; right < x.size(); right++){ | ~~~~~~^~~~~~~~~~ main.cpp:34:10: warning: statement has no effect [-Wunused-value] 34 | for (max_left; max_left <= max_right; max_left++){ | ^~~~~~~~