Compilare: user.cpp: In function ‘int Dijkstra()’: user.cpp:64:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int MinVf()’: user.cpp:50:12: warning: ‘i_min’ may be used uninitialized in this function [-Wmaybe-uninitialized] return i_min; ^ user.cpp: In function ‘int Dijkstra()’: user.cpp:56:18: warning: ‘i_min’ may be used uninitialized in this function [-Wmaybe-uninitialized] M[u]=true; ^