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# Chapter 8.   Heap

![Heap](../assets/covers/chapter_heap.jpg){ class="cover-image" }

!!! abstract

    The heap is like mountain peaks, stacked and undulating, each with its unique shape.

    Among these peaks, the highest one always catches the eye first.

## Chapter Contents

- [8.1   Heap](https://www.hello-algo.com/en/chapter_heap/heap/)
- [8.2   Building a Heap](https://www.hello-algo.com/en/chapter_heap/build_heap/)
- [8.3   Top-k Problem](https://www.hello-algo.com/en/chapter_heap/top_k/)
- [8.4   Summary](https://www.hello-algo.com/en/chapter_heap/summary/)