Compilare: user.cpp: In function ‘void dfs(int)’: user.cpp:26:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<list[nod].size();++i){ ^ user.cpp: In function ‘int main()’: user.cpp:80:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<rez.size();++i,g<<"\n") ^ user.cpp:81:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<rez[i].size();++j) ^