Compilare: user.cpp: In function 'void dfsCV(Vertex**, int)': user.cpp:476: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'void dijkstra(Vertex**, int)': user.cpp:536: warning: comparison between signed and unsigned integer expressions user.cpp:556: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'int main()': user.cpp:629: warning: deprecated conversion from string constant to 'char*' user.cpp: In function 'void doDijkstra(char*)': user.cpp:597: warning: 'prod' may be used uninitialized in this function