Compilare: main.cpp: In function 'int main()': main.cpp:40:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::__cxx11::list<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 40 | for (int i = 1; i < adj.size(); i++) | ~~^~~~~~~~~~~~ main.cpp:46:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 46 | for (int i = 0; i < ans.size() - 1; i++) | ~~^~~~~~~~~~~~~~~~