Compilare: main.cpp: In function 'int bfs(int)': main.cpp:48:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<ok>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 48 | for (i = 0; i < adj[nod].size(); ++i) | ~~^~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:73:15: warning: unused variable 'j' [-Wunused-variable] 73 | int k, i, j, a, b, c, w; | ^