Compilare: user.cpp: In function ‘void dfs(int)’: user.cpp:14:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<V[x].size();++i) ^ user.cpp: In function ‘void rezolv(int)’: user.cpp:43:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<nod.size()&&ok;++i) ^ user.cpp:47:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<nod.size();++i) ^