Compilare: main.cpp: In member function 'std::vector<int> Graph::bfs(int)': main.cpp:86:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 86 | for (int i = 0; i < neighbors[aux.front()].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Graph::dfs(int, std::vector<bool>&)': main.cpp:123:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 123 | for (int i = 0; i < neighbors[x].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Graph::biconnected_dfs(int, int, std::vector<int>&, std::vector<int>&, std::stack<int>&, std::vector<std::vector<int> >&)': main.cpp:166:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 166 | for (int i = 0; i < neighbors[x].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:209:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 209 | for (int i = 0; i < aux.size(); i++) | ~~^~~~~~~~~~~~ main.cpp:211:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 211 | for (int j = 0; j < aux[i].size(); j++) | ~~^~~~~~~~~~~~~~~