Compilare: user.cpp: In function ‘void Dijkstra(int)’: user.cpp:38:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i < g[noda].size(); ++i) ^ user.cpp:30:9: warning: variable ‘cost’ set but not used [-Wunused-but-set-variable] int cost,noda; ^