---
comments: true
icon: material/stack-overflow
---

# Chapter 5.   Stack and Queue

<div class="center-table" markdown>

![Stack and Queue](../assets/covers/chapter_stack_and_queue.jpg){ class="cover-image" }

</div>

!!! abstract

    Stacks are like stacking cats, while queues are like cats lining up.
    
    They respectively represent the logical relationships of Last-In-First-Out (LIFO) and First-In-First-Out (FIFO).

## Chapter Contents

- [5.1 &nbsp; Stack](https://www.hello-algo.com/en/chapter_stack_and_queue/stack/)
- [5.2 &nbsp; Queue](https://www.hello-algo.com/en/chapter_stack_and_queue/queue/)
- [5.3 &nbsp; Double-ended Queue](https://www.hello-algo.com/en/chapter_stack_and_queue/deque/)
- [5.4 &nbsp; Summary](https://www.hello-algo.com/en/chapter_stack_and_queue/summary/)