Compilare: user.cpp: In function ‘void Dijkstra(int)’: user.cpp:71:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<G[pozition].size();i++) ^ user.cpp: In function ‘void Solve()’: user.cpp:88:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<G[i].size();j++) ^ user.cpp:92:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k=0;k<G[neighb].size();k++) ^ user.cpp:96:28: warning: ‘point’ may be used uninitialized in this function [-Wmaybe-uninitialized] G[neighb][point].second=c; ^