Compilare: main.cpp: In function 'void Dijkstra(int)': main.cpp:48:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<G[nod].size();i++) ~^~~~~~~~~~~~~~ main.cpp:38:13: warning: iteration 50000 invokes undefined behavior [-Waggressive-loop-optimizations] D[i]=oo; ~~~~^~~ main.cpp:37:18: note: within this loop for(int i=1;i<=N;i++) ^