Compilare: user.cpp: In function ‘void dijkstra()’: user.cpp:23:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<G[nod].size();++i) ^ user.cpp: In function ‘int main()’: user.cpp:58:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<G[KK[i]].size();++j) ^ user.cpp:70:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<contor.size();++i) ^