Computer scienceAlgorithms and Data StructuresData structuresLimited access data types

Priority queue

Difference from a regular queue

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Which of the following statements is true about the difference between a regular queue and a priority queue (implemented using heap)?

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A queue allows insertion and deletion at both ends, while priority queue only allows insertion at one end and deletion at the other.

A queue follows the first-in, first-out (FIFO) principle, while priority queue follows the last-in, first-out (LIFO) principle.

A queue maintains the order of insertion, whereas priority queue maintains the order based on the elements' priority.

For insertion and deletion, a queue has constant time complexity, whereas priority queue has logarithmic time complexity.

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