Compilare: main.cpp: In function 'long long int dfs(int, std::vector<std::vector<int> >&, std::vector<bool>&, std::vector<int>&, std::vector<long long int>&, long long int&)': main.cpp:17:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 17 | for (int j = 0; j < edges[node].size(); j++) { | ~~^~~~~~~~~~~~~~~~~~~~