Compilare: main.cpp: In function 'int main()': main.cpp:30:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::queue<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 30 | for (int i = 0; i < q.size(); i++) { | ~~^~~~~~~~~~ main.cpp:35:43: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 35 | for (int i = 0; i < adj[node].size(); i++) { | ~~^~~~~~~~~~~~~~~~~~ main.cpp:51:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 51 | for (int i = 0; i < nev_nodes.size(); i++) { | ~~^~~~~~~~~~~~~~~~~~