Add bubble sort, insertion sort.

pull/8/head
krahets 2 years ago
parent 01ccbb2cda
commit e60dc5dc49

4
.gitignore vendored

@ -5,8 +5,10 @@
.vscode/
# mkdocs files
overrides/
site/
.cache/
overrides/
codes/python
codes/cpp
docs/chapter_*

@ -1,20 +1,10 @@
# Welcome to MkDocs
# Hello 算法
For full documentation visit [mkdocs.org](https://www.mkdocs.org).
[<img src="docs/index.assets/conceptual_rendering.png" height="200" />](krahets.github.io/hello-algo/)
## Commands
动画图解、能运行、可讨论的
* `mkdocs new [dir-name]` - Create a new project.
* `mkdocs serve` - Start the live-reloading docs server.
* `mkdocs build` - Build the documentation site.
* `mkdocs -h` - Print help message and exit.
## Project layout
mkdocs.yml # The configuration file.
docs/
index.md # The documentation homepage.
... # Other markdown pages, images and other files.
数据结构与算法快速入门教程
## 更新日志
@ -36,6 +26,7 @@ For full documentation visit [mkdocs.org](https://www.mkdocs.org).
| 更新:首页介绍 | 2022-11-15 |
| 更新:关于本书</br>新增:如何使用本书</br>新增:一起参与创作 | 2022-11-16 |
| 新增:查找算法 | 2022-11-19 |
| 更新Markdown Stylesheet</br>新增:冒泡排序、插入排序 | 2022-11-21 |
## License

@ -0,0 +1,50 @@
package chapter_sorting;
import java.util.*;
public class bubble_sort {
/* 冒泡排序 */
static void bubbleSort(int[] nums) {
// 外循环:待排序元素数量为 n-1, n-2, ..., 1
for (int i = nums.length - 1; i > 0; i--) {
// 内循环:冒泡操作
for (int j = 0; j < i; j++) {
if (nums[j] > nums[j + 1]) {
// 交换 nums[j] 与 nums[j + 1]
int tmp = nums[j];
nums[j] = nums[j + 1];
nums[j + 1] = tmp;
}
}
}
}
/* 冒泡排序(标志优化)*/
static void bubbleSortWithFlag(int[] nums) {
// 外循环:待排序元素数量为 n-1, n-2, ..., 1
for (int i = nums.length - 1; i > 0; i--) {
boolean flag = false; // 初始化标志位
// 内循环:冒泡操作
for (int j = 0; j < i; j++) {
if (nums[j] > nums[j + 1]) {
// 交换 nums[j] 与 nums[j + 1]
int tmp = nums[j];
nums[j] = nums[j + 1];
nums[j + 1] = tmp;
flag = true; // 记录交换元素
}
}
if (!flag) break; // 此轮冒泡未交换任何元素,直接跳出
}
}
public static void main(String[] args) {
int[] nums = { 4, 1, 3, 1, 5, 2 };
bubbleSort(nums);
System.out.println("排序后数组 nums = " + Arrays.toString(nums));
int[] nums1 = { 4, 1, 3, 1, 5, 2 };
bubbleSortWithFlag(nums1);
System.out.println("排序后数组 nums1 = " + Arrays.toString(nums));
}
}

@ -0,0 +1,25 @@
package chapter_sorting;
import java.util.*;
public class insertion_sort {
/* 插入排序 */
static void insertionSort(int[] nums) {
// 外循环base = nums[1], nums[2], ..., nums[n-1]
for (int i = 1; i < nums.length; i++) {
int base = nums[i], j = i - 1;
// 内循环:将 base 插入到左边的正确位置
while (j >= 0 && nums[j] > base) {
nums[j + 1] = nums[j]; // 1. 将 nums[j] 向右移动一位
j--;
}
nums[j + 1] = base; // 2. 将 base 赋值到正确位置
}
}
public static void main(String[] args) {
int[] nums = { 4, 1, 3, 1, 5, 2 };
insertionSort(nums);
System.out.println("排序后数组 nums = " + Arrays.toString(nums));
}
}

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@ -7,34 +7,38 @@ hide:
=== " "
<div class="result" markdown>
![conceptual_rendering](index.assets/conceptual_rendering.jpg){ align=left width=300 }
</br>
![conceptual_rendering](index.assets/conceptual_rendering.png){ align=left width=300 }
</br>
</br>
</br>
<h1 style="text-align:center"> 《 Hello算法 》 </h1>
<h3 style="text-align:center"> 动画图解、能运行、可讨论的</br>数据结构与算法快速入门教程 </h3>
<h3 style="text-align:center"> [![github-stars](https://img.shields.io/github/stars/krahets/hello-algo?style=social)](https://github.com/krahets/hello-algo) </h3>
<p style="text-align:center"> [@Krahets](https://leetcode.cn/u/jyd/) </p>
<p style="text-align:center"> [![github-stars](https://img.shields.io/github/stars/krahets/hello-algo?style=social)](https://github.com/krahets/hello-algo) </p>
</br>
</div>
---
<h2 style="text-align:center"> 「动画 + 图片 + HTML」 </h2>
<h2 style="text-align:center"> 「清晰动画讲解」 </h2>
<p style="text-align:center"> 借助动画介绍重点,提升知识吸收效率</br>HTML 文档,支持笔记本、平板、手机多种终端 </p>
<p style="text-align:center"> 重点知识以动画和图解为主,提升知识吸收效率</br>由 MkDocs 构建文档,支持笔记本、平板、手机多种终端 </p>
![algorithm_animation](index.assets/animation.gif)
![algorithm_animation](index.assets/algorithm_animation.gif)
---
<h2 style="text-align:center">面向代码,注重实践」 </h2>
<h2 style="text-align:center"> 「代码实践导向</h2>
<p style="text-align:center"> 示例代码皆可一键运行,在调试中加深理解</br>提供 Java, C++, Python 源码与详细注释 </p>
![running_code](index.assets/running_code.gif)
<h2 style="text-align:center"> 「可讨论,能提问」 </h2>
---
<h2 style="text-align:center"> 「可讨论与提问」 </h2>
<p style="text-align:center"> 在评论区和小伙伴们一起讨论进步</br>作者定期回复评论问题(一般 < 72h </p>
<p style="text-align:center"> 在评论区与小伙伴们一起学习进步</br>作者定期回复评论问题(一般 < 72h </p>
![comment](index.assets/comment.gif)

@ -1,6 +1,7 @@
/* Color Settings */
/* https://github.com/squidfunk/mkdocs-material/blob/6b5035f5580f97532d664e3d1babf5f320e88ee9/src/assets/stylesheets/main/_colors.scss */
/* https://squidfunk.github.io/mkdocs-material/setup/changing-the-colors/#custom-colors */
:root > * {
--md-primary-fg-color: #FFFFFF;
--md-primary-bg-color: #1D1D20;
@ -30,3 +31,14 @@
/* Reset alignment for table cells */
text-align: initial;
}
/* Markdown Header */
.md-typeset h1 {
font-weight: 400;
color: var(--md-default-fg-color);
}
.md-typeset h2 {
font-weight: 400;
}

@ -6,6 +6,7 @@ site_description: Your first book to learn Data Structure And Algorithm.
# Repository
repo_name: krahets/hello-algo
repo_url: https://github.com/krahets/hello-algo
edit_uri: https://github.com/krahets/hello-algo/master/docs/
# Copyright
copyright: Copyright &copy; 2020 - 2022 Krahets
@ -14,6 +15,7 @@ copyright: Copyright &copy; 2020 - 2022 Krahets
theme:
name: material
custom_dir: overrides
language: zh
features:
- announce.dismiss
- content.code.annotate
@ -52,8 +54,9 @@ theme:
code: Roboto Mono
favicon: assets/images/favicon.png
logo: assets/images/logo.png
# icon:
# logo: logo
icon:
logo: logo
repo: fontawesome/brands/github
extra:
social:
@ -61,7 +64,9 @@ extra:
link: https://github.com/krahets
- icon: fontawesome/brands/twitter
link: https://twitter.com/krahets
generator: false
- icon: fontawesome/solid/code
link: https://leetcode.cn/u/jyd/
# generator: false
# Plugins
plugins:
@ -113,12 +118,11 @@ extra_css:
# Page tree
nav:
- 前言:
- 关于本书:
- chapter_introduction/index.md
- 如何使用本书:
- 算法学习建议: chapter_prerequisites/suggestions.md
- 编程环境安装: chapter_prerequisites/installation.md
- 一起参与创作: chapter_prerequisites/contribution.md
- 如何使用本书: chapter_introduction/suggestions.md
- 编程环境安装: chapter_introduction/installation.md
- 一起参与创作: chapter_introduction/contribution.md
- 算法是什么:
- chapter_dsa_introduction/index.md
- 计算复杂度:
@ -151,5 +155,10 @@ nav:
- 二分查找: chapter_searching/binary_search.md
- 哈希查找: chapter_searching/hashing_search.md
- 小结: chapter_searching/summary.md
- 排序算法:
- 冒泡排序: chapter_sorting/bubble_sort.md
- 插入排序: chapter_sorting/insertion_sort.md
- 归并排序: chapter_sorting/merge_sort.md
- 快速排序: chapter_sorting/quick_sort.md
- 参考文献:
- chapter_reference/index.md
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