008: Vessel Loading

language Essence 1.3

letting deck_width   be 5 
letting deck_length  be 5
letting n_containers be 4
letting n_classes    be 2


letting width  be function( 1 --> 5, 2 --> 2,  3 --> 3 )
letting length be function( 1 --> 1, 2 --> 4,  3 --> 4 )
letting class  be function( 1 --> 1, 2 --> 1,  3 --> 1)

letting separation be function ( {1,2} --> 0 )