Compilare: main.cpp: In function 'int main()': main.cpp:35:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::__cxx11::basic_string<char> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 35 | for (int i = 0; i < sol.size(); i++) | ~~^~~~~~~~~~~~ main.cpp:31:9: warning: 'chmax' may be used uninitialized in this function [-Wmaybe-uninitialized] 31 | int p = who[chmax]; | ^