A priority queue is an abstract data type in computer programming that supports the following three operations:
For an analogy, see the Implementation section below.
One can imagine a priority queue as a modified queue, but when one would get the next element off the queue, the highest-priority one is retrieved first.
A queue is a special case of a priority queue where an element's priority is the time (or negative of the time) that element was i...
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A priority queue is an abstract data type in computer programming that supports the following three operations:
For an analogy, see the Implementation section below.
One can imagine a priority queue as a modified queue, but when one would get the next element off the queue, the highest-priority one is retrieved first.
A queue is a special case of a priority queue where an element's priority is the time (or negative of the time) that element was inserted.
There are a variety of simple, usually inefficient, ways to implement a priority queue. They provide an analogy to help one understand what a priority queue is:
These implementations are usually inefficient, though can be good depending on the workload (for example, if one does very few GetNext operations, the unsorted list approach may work well). In practice, priority queues blend these two approaches, so any operation takes roughly O(log(n)) time or less.
To get better performance, priority queues typically use a heap (such as a...
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