Compilare: main.cpp: In function 'void DFS(int, std::vector<std::vector<int> >&, std::vector<std::vector<int> >&, int, int&)': main.cpp:14:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 14 | for (int i = 0; i < Vec[nod].size(); i++) | ~~^~~~~~~~~~~~~~~~~ main.cpp:35:5: warning: 'nr' may be used uninitialized in this function [-Wmaybe-uninitialized] 35 | if (nr >= 2) | ^~