# sommets : G, J, Y, E, N, M, A, L
matrice_adj = [[0, 1, 1, 0, 1, 1, 0, 0], # G
				[......................], # J
				[......................], # Y
				[......................], # E
				[......................], # N
				[......................], # M
				[......................], # A
				[......................]] # L