Compilare: main.cpp: In function 'int main()': main.cpp:218:23: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'i64' {aka 'long int'} [-Wsign-compare] 218 | while (ans.size() < n) { | ~~~~~~~~~~~^~~ main.cpp:216:12: warning: unused variable 'i' [-Wunused-variable] 216 | for (int i : range(q)) { | ^