Compilare: user.cpp: In function ‘int Dijkstra(int)’: user.cpp:26:47: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < adj[node].size(); i++){ ^ user.cpp:24:17: warning: unused variable ‘lng’ [-Wunused-variable] int lng = heap.top().first; ^ user.cpp:35:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^