> 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/bfs/1.-bfs-in-binary-tree.md).

# 1. BFS in Binary Tree

- [Check Full Binary Tree](https://blog.yushunchen.com/algo/bfs/1.-bfs-in-binary-tree/check-full-binary-tree.md): ID: 726; medium
- [Binary Tree Level Order Traversal II](https://blog.yushunchen.com/algo/bfs/1.-bfs-in-binary-tree/binary-tree-level-order-traversal-ii.md): ID: 70; medium
- [Binary Tree Maximum Path Sum II](https://blog.yushunchen.com/algo/bfs/1.-bfs-in-binary-tree/binary-tree-maximum-path-sum-ii.md): ID: 475; medium
- [Convert Binary Tree to Linked Lists by Depth](https://blog.yushunchen.com/algo/bfs/1.-bfs-in-binary-tree/convert-binary-tree-to-linked-lists-by-depth.md): ID: 242; easy