Compilare: main.cpp: In function 'int dfs(int, int, int)': main.cpp:75:21: 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] 75 | for(; skip[node]<edges[node].size(); skip[node]++)///we start from the pointer we have for this node