> For the complete documentation index, see [llms.txt](https://blog.yushunchen.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://blog.yushunchen.com/algo/heap-and-priority-queue.md).

# Heap & Priority Queue

- [Heapify](https://blog.yushunchen.com/algo/heap-and-priority-queue/heapify.md): ID: 130; medium
- [Top k Largest Numbers II](https://blog.yushunchen.com/algo/heap-and-priority-queue/top-k-largest-numbers-ii.md): ID: 545; medium
- [K Closest Points](https://blog.yushunchen.com/algo/heap-and-priority-queue/k-closest-points.md): ID: 612; medium; \*
- [Kth Smallest Number in Sorted Matrix](https://blog.yushunchen.com/algo/heap-and-priority-queue/kth-smallest-number-in-sorted-matrix.md): ID: 401; medium
- [Find Median from Data Stream](https://blog.yushunchen.com/algo/heap-and-priority-queue/find-median-from-data-stream.md): ID: 81; hard
- [Sliding Window Median](https://blog.yushunchen.com/algo/heap-and-priority-queue/sliding-window-median.md): ID: 360; hard
- [Trapping Rain Water II](https://blog.yushunchen.com/algo/heap-and-priority-queue/trapping-rain-water-ii.md): ID: 364; hard
- [High Five](https://blog.yushunchen.com/algo/heap-and-priority-queue/high-five.md): ID: 613; medium