Pour chaque ar^ ete (u, v) en pointillé qui est un isthme de G faire 9. Basculer (u, v) en ar^ ete solide ,
Pour chaque ar^ ete (u, v) en pointillé faire 12 Supprimer (u, v) de G si une des conditions suivante est vérifiée : 13 a, |C(v)| > 1, et C(u) = C(v) ,
49 4.2.1 Existence d'une solution pour une contrainte tree 49 4.2.2 Arc-consistance généralisée pour la contrainte tree, Complexité, p.53 ,
Gprec tel que u = r(u) et v / ? CC (u) faire 5. remplacer (u, v) ,
G maybe faire 10. supprimer (u, v) de G maybe si une des conditions suivante est vérifiée : 11. a. (CC (u), CC (v)) crée un circuit dans G H prec CC (v)) crée un arc transitif dans G H prec ,
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