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Rubygem-pairing_heap
Jul 20, 2023
Performant priority queue with support for changing priority
PairingHeap is a pure Ruby priority queue implementation using a pairing heap as the underlying data structure. While a pairing heap is asymptotically less efficient than the Fibonacci heap, it is usually faster in practice. This makes it a popular choice for Prim’s MST or Dijkstra’s algorithm implementations.
PairingHeap is currently being used as the priority queue data structure in RGL.
Also implementation without priority change support is providedSimplePairingHeap, while the asymptotical complexity of the methods stay the same, bookkeeping of elements is not needed making, the constant smaller.
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