> For the complete documentation index, see [llms.txt](https://liuzhenglaichn.gitbook.io/algorithm/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://liuzhenglaichn.gitbook.io/algorithm/miscellaneous/floyds-tortoise-and-hare.md).

# Floyds Tortoise And Hare

## Problems

* [141. Linked List Cycle (Easy)](https://leetcode.com/problems/linked-list-cycle/)
* [142. Linked List Cycle II (Medium)](https://leetcode.com/problems/linked-list-cycle-ii/)
* [287. Find the Duplicate Number (Medium)](https://leetcode.com/problems/find-the-duplicate-number/)