Compilare: main.cpp: In function 'void bfs(int)': main.cpp:23:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 23 | for (int i = 0; i < g[node].size(); i++) { | ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:65:18: warning: 'q' may be used uninitialized [-Wmaybe-uninitialized] 65 | fout << q << '\n'; | ^~~~ main.cpp:59:9: note: 'q' was declared here 59 | int q; | ^