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Ingy döt Net 2013-04-10 23:57:08 -07:00
parent 47bf37c096
commit b83f433714
12433 changed files with 156208 additions and 123 deletions
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Task/Priority-queue/Mathematica/priority-queue-1.math Normal file
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push = Function[{queue, priority, item},
queue = SortBy[Append[queue, {priority, item}], First], HoldFirst];
pop = Function[queue,
If[Length@queue == 0, Null,
With[{item = queue[[-1, 2]]}, queue = Most@queue; item]],
HoldFirst];
peek = Function[queue,
If[Length@queue == 0, Null, Max[queue[[All, 1]]]], HoldFirst];
merge = Function[{queue1, queue2},
SortBy[Join[queue1, queue2], First], HoldAll];