Compilare: main.cpp: In function 'int Dijkstra(int)': main.cpp:49:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<graph[node].size(); ++i) ~^~~~~~~~~~~~~~~~~~~ main.cpp: In function 'void Solve()': main.cpp:84:21: warning: 'sol' may be used uninitialized in this function [-Wmaybe-uninitialized] g<<ans<<" "<<sol; ^