idiegoo

\begin{algorithmic}[1]
\Require Grafo $G$, nodo $X \in V(G)$
\Function{cycleAfter}{$G, X$}
    \If{$X.color = \text{gris}$}
        \State \Return \True
    \EndIf
    \If{$X.color = \text{negro}$}
        \State \Return \False
    \EndIf
    \State $X.color \gets \text{gris}$