Compilare: main.cpp: In function 'void dfs(int)': main.cpp:24:21: warning: comparison of integer expressions of different signedness: '__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type' {aka 'int'} and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 24 | while (pos[nod] < Ad[nod].size()) { main.cpp: In function 'int main()': main.cpp:50:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 50 | for (int i=0;i<cycle.size()-1;i++) { | ~^~~~~~~~~~~~~~~