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𝓞(n³) implementation of the Hungarian algorithm,
also known as the Hungarian method, Kuhn–Munkres
algorithm or Munkres assignment.
The Hungarian algorithm solved the minmum bipartite
match problem in 𝓞(n⁴). By implementing the priority
queue with a van Emde Boas tree the time can be
reduced to 𝓞(n³ log log n). The van Emde Boas tree
is possible to use because the elements values are
bounded within the priority queue's capacity.
However this implemention achived 𝓞(n³) by not using
a priority queue.
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