> For the complete documentation index, see [llms.txt](https://evarga.gitbook.io/sh-aofa/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://evarga.gitbook.io/sh-aofa/algorithms-and-combinatorial-structures.md).

# ALGORITHMS AND COMBINATORIAL STRUCTURES

- [Chapter 6: Trees](https://evarga.gitbook.io/sh-aofa/algorithms-and-combinatorial-structures/chapter-6-trees.md)
- [Chapter 7: Permutations](https://evarga.gitbook.io/sh-aofa/algorithms-and-combinatorial-structures/chapter-7-permutations.md)
- [Chapter 8: Strings and Tries](https://evarga.gitbook.io/sh-aofa/algorithms-and-combinatorial-structures/chapter-8-strings-and-tries.md)
- [Chapter 9: Words and Mappings](https://evarga.gitbook.io/sh-aofa/algorithms-and-combinatorial-structures/chapter-9-words-and-mappings.md)