Eroare de compilare: user.cpp: In function ‘void dfs(int)’: user.cpp:35:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i< gr[nod].size(); ++i) ^ user.cpp: In function ‘int main()’: user.cpp:78:46: error: ‘nr’ was not declared in this scope for (int i=1; i<=N; ++i) if (vis[i] == true) nr ++; ^ user.cpp:79:9: error: ‘nr’ was not declared in this scope fout << nr; ^