Compilare: main.cpp: In function 'void bfs()': main.cpp:21:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<v[node].size();i++) ~^~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:43:44: warning: iteration 100004 invokes undefined behavior [-Waggressive-loop-optimizations] for(int i=1;i<=NMAX;i++) rad[i]=dist[i]=INF; ~~~~~~~^~~~ main.cpp:43:18: note: within this loop for(int i=1;i<=NMAX;i++) rad[i]=dist[i]=INF; ~^~~~~~