% -----------------------------------------------
%                    Exercice 3
%           Florian Lepot & Maxime Fabre
% -----------------------------------------------

% Question 1
% -------------------------

?- coloriage(C1, C2, C3, C4).
C1 = vert,
C2 = C4, C4 = jaune,
C3 = rouge ;
C1 = vert,
C2 = C4, C4 = rouge,
C3 = jaune ;
C1 = jaune,
C2 = C4, C4 = vert,
C3 = rouge ;
C1 = jaune,
C2 = C4, C4 = rouge,
C3 = vert ;
C1 = rouge,
C2 = C4, C4 = vert,
C3 = jaune ;
C1 = rouge,
C2 = C4, C4 = jaune,
C3 = vert ;
false.

On obtient 6 résultats possibles pour le coloriage de la figure.



% Question 2
% -------------------------

?- coloriage2(C1, C2, C3, C4).
C1 = vert,
C2 = C4, C4 = jaune,
C3 = rouge ;
C1 = vert,
C2 = C4, C4 = rouge,
C3 = jaune ;
C1 = jaune,
C2 = C4, C4 = vert,
C3 = rouge ;
C1 = jaune,
C2 = C4, C4 = rouge,
C3 = vert ;
C1 = rouge,
C2 = C4, C4 = vert,
C3 = jaune ;
C1 = rouge,
C2 = C4, C4 = jaune,
C3 = vert ;
false.