Compilare: user.cpp: In function ‘void dfs()’: user.cpp:27:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(b[nod]<v[nod].size()) ^ user.cpp:36:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(b[nod]==v[nod].size()) ^ user.cpp: In function ‘int main()’: user.cpp:59:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=z[i]+1;j<=v[i].size();j++) ^ user.cpp:75:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<rez.size()-1;i++) ^