A.19 library(heaps): heaps/priority queues
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Availability::- use_module(library(heaps)).(can be autoloaded)
Source[semidet]get_from_heap(?Heap0, ?Priority, ?Key, -Heap)
Retrieves the minimum-priority pair Priority-Key from Heap0. Heap is Heap0 with that pair removed. Complexity: logarithmic (amortized), linear in the worst case.