Question: Implement Heap (constructors, trickleUp and trickleDown), MyPriorityQueue (constructor, offer, poll, peek and isEmpty) and HeapSort (using heap directly or using PriorityQueue.poll). Comparators should be used.

Implement Heap (constructors, trickleUp and trickleDown), MyPriorityQueue (constructor, offer, poll, peek and isEmpty) and HeapSort (using heap directly or using PriorityQueue.poll). Comparators should be used.

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