Assuming a priority queue is implemented as a stack, to remove the first element of the priority queue, we copy the last element of the list into the first array position, reduce the length of the list by 1, and restore the heap in the list.

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Quizplus · Accepted Answer

A priority queue is typically implemented as a heap, not a stack, and removing the first element (the highest priority element) involves moving the last element to the root and then performing a heapify-down operation to restore heap properties, not copying the last element into the first array position as described for a stack-based operation.

Assuming a Priority Queue Is Implemented as a Stack, to Remove