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hello-algo/docs/chapter_introduction/what_is_dsa.md

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Remove the heading numbers in all the source docs.
2023-02-16 03:39:01 +08:00
# 算法是什么
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Remove the heading numbers in all the source docs.
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## 算法定义
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Use underline format for the technical terms (#1213) * Use underline format for the technical terms * Bug fixes
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<u>算法（algorithm）</u>是在有限时间内解决特定问题的一组指令或操作步骤，它具有以下特性。
Add auto hide style to the sidebar scrollwrap.
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Modify the chapter names. Fix the definition of algorithm. Update the buttons in the landing page.
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- 问题是明确的，包含清晰的输入和输出定义。
- 具有可行性，能够在有限步骤、时间和内存空间下完成。
feat: Revised the book (#978) * Sync recent changes to the revised Word. * Revised the preface chapter * Revised the introduction chapter * Revised the computation complexity chapter * Revised the chapter data structure * Revised the chapter array and linked list * Revised the chapter stack and queue * Revised the chapter hashing * Revised the chapter tree * Revised the chapter heap * Revised the chapter graph * Revised the chapter searching * Reivised the sorting chapter * Revised the divide and conquer chapter * Revised the chapter backtacking * Revised the DP chapter * Revised the greedy chapter * Revised the appendix chapter * Revised the preface chapter doubly * Revised the figures
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- 各步骤都有确定的含义，在相同的输入和运行条件下，输出始终相同。
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Remove the heading numbers in all the source docs.
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## 数据结构定义
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Bug fixes and improvements (#1380) * preorder, inorder, postorder -> pre-order, in-order, post-order * Bug fixes * Bug fixes * Update what_is_dsa.md * Sync zh and zh-hant versions * Sync zh and zh-hant versions. * Update performance_evaluation.md and time_complexity.md * Add @khoaxuantu to the landing page. * Sync zh and zh-hant versions * Add @ khoaxuantu to the landing page of zh-hant and en versions.
2024-05-31 16:39:06 +08:00
<u>数据结构（data structure）</u>是组织和存储数据的方式，涵盖数据内容、数据之间关系和数据操作方法，它具有以下设计目标。
Add auto hide style to the sidebar scrollwrap.
2022-12-11 16:52:04 +08:00
feat: Revised the book (#978) * Sync recent changes to the revised Word. * Revised the preface chapter * Revised the introduction chapter * Revised the computation complexity chapter * Revised the chapter data structure * Revised the chapter array and linked list * Revised the chapter stack and queue * Revised the chapter hashing * Revised the chapter tree * Revised the chapter heap * Revised the chapter graph * Revised the chapter searching * Reivised the sorting chapter * Revised the divide and conquer chapter * Revised the chapter backtacking * Revised the DP chapter * Revised the greedy chapter * Revised the appendix chapter * Revised the preface chapter doubly * Revised the figures
2023-12-02 06:21:34 +08:00
- 空间占用尽量少，以节省计算机内存。
Polish the chapter of heap, introduction, preface. Replace "其它" with "其他"
2023-04-09 19:12:37 +08:00
- 数据操作尽可能快速，涵盖数据访问、添加、删除、更新等。
feat: Revised the book (#978) * Sync recent changes to the revised Word. * Revised the preface chapter * Revised the introduction chapter * Revised the computation complexity chapter * Revised the chapter data structure * Revised the chapter array and linked list * Revised the chapter stack and queue * Revised the chapter hashing * Revised the chapter tree * Revised the chapter heap * Revised the chapter graph * Revised the chapter searching * Reivised the sorting chapter * Revised the divide and conquer chapter * Revised the chapter backtacking * Revised the DP chapter * Revised the greedy chapter * Revised the appendix chapter * Revised the preface chapter doubly * Revised the figures
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- 提供简洁的数据表示和逻辑信息，以便算法高效运行。
Add auto hide style to the sidebar scrollwrap.
2022-12-11 16:52:04 +08:00
feat: Revised the book (#978) * Sync recent changes to the revised Word. * Revised the preface chapter * Revised the introduction chapter * Revised the computation complexity chapter * Revised the chapter data structure * Revised the chapter array and linked list * Revised the chapter stack and queue * Revised the chapter hashing * Revised the chapter tree * Revised the chapter heap * Revised the chapter graph * Revised the chapter searching * Reivised the sorting chapter * Revised the divide and conquer chapter * Revised the chapter backtacking * Revised the DP chapter * Revised the greedy chapter * Revised the appendix chapter * Revised the preface chapter doubly * Revised the figures
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**数据结构设计是一个充满权衡的过程**。如果想在某方面取得提升，往往需要在另一方面作出妥协。下面举两个例子。
Polish the content Polish the chapter preface, introduction and complexity anlysis
2023-08-08 23:16:33 +08:00
- 链表相较于数组，在数据添加和删除操作上更加便捷，但牺牲了数据访问速度。
- 图相较于链表，提供了更丰富的逻辑信息，但需要占用更大的内存空间。
Add auto hide style to the sidebar scrollwrap.
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Remove the heading numbers in all the source docs.
2023-02-16 03:39:01 +08:00
## 数据结构与算法的关系
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2022-12-11 16:52:04 +08:00
feat: Revised the book (#978) * Sync recent changes to the revised Word. * Revised the preface chapter * Revised the introduction chapter * Revised the computation complexity chapter * Revised the chapter data structure * Revised the chapter array and linked list * Revised the chapter stack and queue * Revised the chapter hashing * Revised the chapter tree * Revised the chapter heap * Revised the chapter graph * Revised the chapter searching * Reivised the sorting chapter * Revised the divide and conquer chapter * Revised the chapter backtacking * Revised the DP chapter * Revised the greedy chapter * Revised the appendix chapter * Revised the preface chapter doubly * Revised the figures
2023-12-02 06:21:34 +08:00
如下图所示，数据结构与算法高度相关、紧密结合，具体表现在以下三个方面。
Add auto hide style to the sidebar scrollwrap.
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feat: Revised the book (#978) * Sync recent changes to the revised Word. * Revised the preface chapter * Revised the introduction chapter * Revised the computation complexity chapter * Revised the chapter data structure * Revised the chapter array and linked list * Revised the chapter stack and queue * Revised the chapter hashing * Revised the chapter tree * Revised the chapter heap * Revised the chapter graph * Revised the chapter searching * Reivised the sorting chapter * Revised the divide and conquer chapter * Revised the chapter backtacking * Revised the DP chapter * Revised the greedy chapter * Revised the appendix chapter * Revised the preface chapter doubly * Revised the figures
2023-12-02 06:21:34 +08:00
- 数据结构是算法的基石。数据结构为算法提供了结构化存储的数据，以及操作数据的方法。
Bug fixes and improvements (#1581) * A bug fixes * Sync zh and zh-hant versions. * Fix a question in chapter_array_and_linkedlist/summary.md * Optimize a definition in what_is_dsa.md * Fix the Contributing guidelines for Chinese-to-English. * Add a q&a in chapter_array_and_linkedlist/summary.md * Sync zh and zh-hant versions. * Update .gitignore * Sync zh and zh-hant versions.
2024-12-04 17:58:28 +08:00
- 算法为数据结构注入生命力。数据结构本身仅存储数据信息，结合算法才能解决特定问题。
feat: Revised the book (#978) * Sync recent changes to the revised Word. * Revised the preface chapter * Revised the introduction chapter * Revised the computation complexity chapter * Revised the chapter data structure * Revised the chapter array and linked list * Revised the chapter stack and queue * Revised the chapter hashing * Revised the chapter tree * Revised the chapter heap * Revised the chapter graph * Revised the chapter searching * Reivised the sorting chapter * Revised the divide and conquer chapter * Revised the chapter backtacking * Revised the DP chapter * Revised the greedy chapter * Revised the appendix chapter * Revised the preface chapter doubly * Revised the figures
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- 算法通常可以基于不同的数据结构实现，但执行效率可能相差很大，选择合适的数据结构是关键。
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Update the captions of all the figures.
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![数据结构与算法的关系](what_is_dsa.assets/relationship_between_data_structure_and_algorithm.png)
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Mention figures and tables in normal texts. Fix some figures. Finetune texts.
2023-08-21 19:33:45 +08:00
数据结构与算法犹如下图所示的拼装积木。一套积木，除了包含许多零件之外，还附有详细的组装说明书。我们按照说明书一步步操作，就能组装出精美的积木模型。
Add playing cards sorting example to algos_are_everywhere
2023-07-12 03:52:33 +08:00
Update basic_data_types.md and reduce size of assembling_blocks.png (#926) * Convert a figure to png-8. * Update basic_data_types.md
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![拼装积木](what_is_dsa.assets/assembling_blocks.png)
Add playing cards sorting example to algos_are_everywhere
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两者的详细对应关系如下表所示。
Polish the chapter introduction, computational complexity.
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feat: Revised the book (#978) * Sync recent changes to the revised Word. * Revised the preface chapter * Revised the introduction chapter * Revised the computation complexity chapter * Revised the chapter data structure * Revised the chapter array and linked list * Revised the chapter stack and queue * Revised the chapter hashing * Revised the chapter tree * Revised the chapter heap * Revised the chapter graph * Revised the chapter searching * Reivised the sorting chapter * Revised the divide and conquer chapter * Revised the chapter backtacking * Revised the DP chapter * Revised the greedy chapter * Revised the appendix chapter * Revised the preface chapter doubly * Revised the figures
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<p align="center"> 表 <id> &nbsp; 将数据结构与算法类比为拼装积木 </p>
1. Add array representation of binary tree. 2. Update the LEGO example. 3. Update headers of the Python files.
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Format code and docs.
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| 数据结构与算法 | 拼装积木 |
Add playing cards sorting example to algos_are_everywhere
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| -------------- | ---------------------------------------- |
| 输入数据 | 未拼装的积木 |
1. Add array representation of binary tree. 2. Update the LEGO example. 3. Update headers of the Python files.
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| 数据结构 | 积木组织形式，包括形状、大小、连接方式等 |
Add playing cards sorting example to algos_are_everywhere
2023-07-12 03:52:33 +08:00
| 算法 | 把积木拼成目标形态的一系列操作步骤 |
| 输出数据 | 积木模型 |
1. Add array representation of binary tree. 2. Update the LEGO example. 3. Update headers of the Python files.
2022-12-23 00:44:40 +08:00
feat: Revised the book (#978) * Sync recent changes to the revised Word. * Revised the preface chapter * Revised the introduction chapter * Revised the computation complexity chapter * Revised the chapter data structure * Revised the chapter array and linked list * Revised the chapter stack and queue * Revised the chapter hashing * Revised the chapter tree * Revised the chapter heap * Revised the chapter graph * Revised the chapter searching * Reivised the sorting chapter * Revised the divide and conquer chapter * Revised the chapter backtacking * Revised the DP chapter * Revised the greedy chapter * Revised the appendix chapter * Revised the preface chapter doubly * Revised the figures
2023-12-02 06:21:34 +08:00
值得说明的是，数据结构与算法是独立于编程语言的。正因如此，本书得以提供基于多种编程语言的实现。
Polish the chapter of heap, introduction, preface. Replace "其它" with "其他"
2023-04-09 19:12:37 +08:00
Update hash map and hash collision.
2022-12-13 01:36:40 +08:00
!!! tip "约定俗成的简称"
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2022-12-11 16:52:04 +08:00
feat: Revised the book (#978) * Sync recent changes to the revised Word. * Revised the preface chapter * Revised the introduction chapter * Revised the computation complexity chapter * Revised the chapter data structure * Revised the chapter array and linked list * Revised the chapter stack and queue * Revised the chapter hashing * Revised the chapter tree * Revised the chapter heap * Revised the chapter graph * Revised the chapter searching * Reivised the sorting chapter * Revised the divide and conquer chapter * Revised the chapter backtacking * Revised the DP chapter * Revised the greedy chapter * Revised the appendix chapter * Revised the preface chapter doubly * Revised the figures
2023-12-02 06:21:34 +08:00
在实际讨论时，我们通常会将“数据结构与算法”简称为“算法”。比如众所周知的 LeetCode 算法题目，实际上同时考查数据结构和算法两方面的知识。
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