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# Chapter 3. Data Structures
![Data Structures](../assets/covers/chapter_data_structure.jpg){ class="cover-image" }
!!! abstract
Data structures serve as a robust and diverse framework.
They offer a blueprint for the orderly organization of data, upon which algorithms come to life.
## 本章内容
- [3.1 Classification of Data Structures](https://www.hello-algo.com/chapter_data_structure/classification_of_data_structure/)
- [3.2 Fundamental Data Types](https://www.hello-algo.com/chapter_data_structure/basic_data_types/)
- [3.3 Number Encoding *](https://www.hello-algo.com/chapter_data_structure/number_encoding/)
- [3.4 Character Encoding *](https://www.hello-algo.com/chapter_data_structure/character_encoding/)
- [3.5 Summary](https://www.hello-algo.com/chapter_data_structure/summary/)