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on-restart-benchmarks/share/minizinc/std/fzn_bin_packing_load.mzn
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565 B
MiniZinc

predicate fzn_bin_packing_load(array[int] of var int: load,
array[int] of var int: bin,
array[int] of int: w) =
sum(load) = sum(w)
/\ forall( i in index_set(bin) ) (
min(index_set(load)) <= bin[i] /\ bin[i] <= max(index_set(load))
)
/\ forall( b in index_set(load) ) (
load[b] = sum ( i in index_set(bin) ) (
w[i] * bool2int( bin[i] = b )
)
);
%-----------------------------------------------------------------------------%