diff --git a/README.md b/README.md index 656b18c..54b1380 100644 --- a/README.md +++ b/README.md @@ -315,3 +315,16 @@ $$ - [最短路径](ch6/applications/README.md#2-最短路径) - [拓扑排序](ch6/applications/README.md#3-拓扑排序) - [关键路径](ch6/applications/README.md#4-关键路径) + +## 8. [查找](ch7/README.md#查找) + +- [查找](ch7/README.md#1-基本概念) + - [顺序查找](ch7/README.md#2-顺序查找) + - [折半查找](ch7/README.md#3-折半查找) + - [分块查找](ch7/README.md#4-分块查找) + - [B 树](ch7/README.md#5-B-树) + - [B+树](ch7/README.md#6-B+-树) + - [散列表](ch7/README.md#7-散列表) +- [串](ch4/README.md#串) + - [基本概念](ch4/README.md#1-定义) + - [模式匹配(KMP)](ch4/README.md#6-KMP-算法) diff --git a/ch7/README.md b/ch7/README.md new file mode 100644 index 0000000..6f23300 --- /dev/null +++ b/ch7/README.md @@ -0,0 +1,177 @@ +# 查找 + +## 1. 基本概念 + +![查找基本概念1](concept1.png) + +![查找基本概念2](concept2.png) + +## 2. 顺序查找 + +![顺序查找1](sequential-search1.png) + +![顺序查找2](sequential-search2.png) + +![顺序查找3](sequential-search3.png) + +![顺序查找4](sequential-search4.png) + +![顺序查找5](sequential-search5.png) + +## 3. 折半查找 + +![折半查找1](binary-search1.png) + +![折半查找2](binary-search2.png) + +![折半查找3](binary-search3.png) + +![折半查找4](binary-search4.png) + +![折半查找5](binary-search5.png) + +![折半查找6](binary-search6.png) + +![折半查找7](binary-search7.png) + +## 4. 分块查找 + +![分块查找1](block-search1.png) + +![分块查找2](block-search2.png) + +![分块查找3](block-search3.png) + +![分块查找4](block-search4.png) + +![分块查找5](block-search5.png) + +## 5. B 树 + +![B树1](b-tree1.png) + +![B树2](b-tree2.png) + +![B树3](b-tree3.png) + +![B树4](b-tree4.png) + +### 5.1. 插入 + +![B树5](b-tree5.png) + +#### 5.1.1. 直接插入 + +![B树6](b-tree6.png) + +#### 5.1.2. 向上分裂 + +![B树7](b-tree7.png) + +![B树8](b-tree8.png) + +![B树9](b-tree9.png) + +![B树10](b-tree10.png) + +### 5.2. 删除 + +![B树11](b-tree11.png) + +#### 5.2.1. 终端结点 + +![B树12](b-tree12.png) + +- 直接删除。 + +![B树13](b-tree13.png) + +- 兄弟够借。 + +![B树14](b-tree14.png) + +![B树15](b-tree15.png) + +- 兄弟不够借。 + +![B树16](b-tree16.png) + +![B树17](b-tree17.png) + +#### 5.2.2. 非终端结点 + +![B树18](b-tree18.png) + +- 删除前驱节点的最大值。 + +![B树19](b-tree19.png) + +![B树20](b-tree20.png) + +- 删除后继结点的最小值。 + +![B树21](b-tree21.png) + +![B树22](b-tree22.png) + +- 合并子结点。 + +![B树23](b-tree23.png) + +![B树24](b-tree24.png) + +## 6. B+ 树 + +> 考研中对 B+ 树之考查定义；对 B 树既考察定义，也考察操作。 + +![B+树1](b-plus-tree1.png) + +![B+树2](b-plus-tree2.png) + +![B+树3](b-plus-tree3.png) + +![B+树4](b-plus-tree4.png) + +## 7. 散列表 + +### 7.1. 基本概念 + +![散列表1](hash-table1.png) + +### 7.2. 散列函数 + +![散列表2](hash-table2.png) + +![散列表3](hash-table3.png) + +![散列表4](hash-table4.png) + +![散列表5](hash-table5.png) + +![散列表6](hash-table6.png) + +### 7.3. 冲突处理 + +![散列表7](hash-table7.png) + +![散列表8](hash-table8.png) + +![散列表9](hash-table9.png) + +![散列表10](hash-table10.png) + +![散列表11](hash-table11.png) + +![散列表12](hash-table12.png) + +![散列表13](hash-table13.png) + +![散列表14](hash-table14.png) + +![散列表15](hash-table15.png) + +### 7.4. 性能分析 + +![散列表16](hash-table16.png) + +![散列表17](hash-table17.png) diff --git a/ch7/b-plus-tree1.png b/ch7/b-plus-tree1.png new file mode 100644 index 0000000..3766f79 Binary files /dev/null and b/ch7/b-plus-tree1.png differ diff --git a/ch7/b-plus-tree2.png b/ch7/b-plus-tree2.png new file mode 100644 index 0000000..5745e76 Binary 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