
bin_packing(+ItemBins, ++ItemSizes, +BinLoads)

   The one-dimensional bin packing constraint with loads: packing N items into M bins, each bin having a load

Arguments
   ItemBins            A collection of N variables or integers (domain/value between 1 and M)
   ItemSizes           A collection of N non-negative integers
   BinLoads            A collection of M variables or non-negative integers

Type
   library(fd_global)

Description
   This constraint is for one-dimensional bin-packing, that is, to pack N
   items with individual sizes into M bins, such that the sum of sizes of
   items in each bin equals the load of that bin, as specified in BinLoads.
   Each element of ItemBins and its corresponding element in ItemSizes
   represents an item, such that the i'th element of ItemSizes is the size
   of the i'th item, and the i'th element of Item is the bin this item is
   packed into. BinLoads represent the load of each bin, i.e. the sum
   of the sizes of items assigned to that bin, with the j'th element 
   representing the load for bin j. An (integer finite domain) variable for 
   the load allows a constraint on the load to be specified, such as a
   minimum and/or maximum load for the bin.

   This constraint and the algorithm used to implement it is described in
   P. Shaw, 'A Constraint for Bin Packing', CP'2004, and is described in
   the global constraint catalog as bin_packing_capa, where the CAPACITY
   parameter is replaced by a collection of domain variables
   


See Also
   bin_packing / 4
