Compilare: main.cpp: In member function 'void Graph::dfs(int, std::vector<bool>&, std::vector<bool>&, std::vector<int>&)': 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 < adj_list[node].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'void conexidad()': main.cpp:97:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 97 | for (int i = 1; i < connected_components.size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:116:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 116 | for (int i = 1; i < extra_edges.size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~ main.cpp:127:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 127 | for (int i = 0; i < result.size(); i++) | ~~^~~~~~~~~~~~~~~