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JianZhi-Offer_JavaScript

★ 87 Open GitHub ↗

以动画的形式展现剑指 offer 所有题目 JavaScript 版、Java版本、Python版本解题思路、总结、代码测试。✍️✍️✍️

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![](https://github.com/luxiangqiang/JianZhi-Offer_JavaScript/blob/master/images/offer.png)

# 写在前边

> 2019/8/26 ，每天整理一道剑指 offer 题，锻炼思维逻辑能力以及编码能力，用心去记录每一道，生活才不会那么枯燥无味。

#### 1、练习“站桩”每天要坚持，一天都不能少！

#### 2、练“武”不练“功”，到老一场空！

#### 3、内练心智，外练筋骨！

#### 4、再好的功夫，练不好基本功，也会走样！

#### 5、练”武“太急是大忌，”基本功“要稳！！

| 序号 | 题目类型       | 题目                               | 动画实现                                                     | 代码                                                         |
| ---- | -------------- | ---------------------------------- | ------------------------------------------------------------ | ------------------------------------------------------------ |
| 1    | 二叉树         | 重建二叉树                         | ![https://github.com/luxiangqiang/JianZhi-Offer_JavaScript/blob/master/images/%E5%89%8D%E5%BA%8F%E9%81%8D%E5%8E%86.gif](https://github.com/luxiangqiang/JianZhi-Offer_JavaScript/blob/master/images/前序遍历.gif) | [题目详解](https://github.com/luxiangqiang/JianZhi-Offer_JavaScript/blob/master/%E9%87%8D%E5%BB%BA%E4%BA%8C%E5%8F%89%E6%A0%91.md) |
| 2    | 二叉树         | 二叉树的下一节点                   | ![](https://github.com/luxiangqiang/JianZhi-Offer_JavaScript/blob/master/images/%E4%B8%8B%E4%B8%80%E8%8A%82%E7%82%B9.gif?raw=true) | [题目详解](https://github.com/luxiangqiang/JianZhi-Offer_JavaScript/blob/master/%E4%BA%8C%E5%8F%89%E6%A0%91%E7%9A%84%E4%B8%8B%E4%B8%80%E8%8A%82%E7%82%B9.md) |
| 3    | 二叉树         | 树的子结构                         | ![https://github.com/luxiangqiang/JianZhi-Offer_JavaScript/blob/master/images/%E4%BA%8C%E5%8F%89%E6%A0%91%E7%9A%84%E5%AD%90%E7%BB%93%E6%9E%84.gif](https://github.com/luxiangqiang/JianZhi-Offer_JavaScript/blob/master/images/二叉树的子结构.gif) | [题目详解](https://github.com/luxiangqiang/JianZhi-Offer_JavaScript/blob/master/%E6%A0%91%E7%9A%84%E5%AD%90%E7%BB%93%E6%9E%84.md) |
| 4    | 二叉树         | 二叉树的镜像                       | ![https://github.com/luxiangqiang/JianZhi-Offer_JavaScript/blob/master/images/%E4%BA%8C%E5%8F%89%E6%A0%91%E7%9A%84%E9%95%9C%E5%83%8F.gif](https://github.com/luxiangqiang/JianZhi-Offer_JavaScript/blob/master/images/二叉树的镜像.gif) | [题目详解](https://github.com/luxiangqiang/JianZhi-Offer_JavaScript/blob/master/%E4%BA%8C%E5%8F%89%E6%A0%91%E7%9A%84%E9%95%9C%E5%83%8F.md) |
| 5    | 二叉树         | 对称二叉树                         | ![https://github.com/luxiangqiang/JianZhi-Offer_JavaScript/blob/master/images/%E5%AF%B9%E7%A7%B0%E4%BA%8C%E5%8F%89%E6%A0%91.gif](https://github.com/luxiangqiang/JianZhi-Offer_JavaScript/blob/master/images/对称二叉树.gif) | [题目详解](https://github.com/luxiangqiang/JianZhi-Offer_JavaScript/blob/master/%E5%AF%B9%E7%A7%B0%E7%9A%84%E4%BA%8C%E5%8F%89%E6%A0%91.md) |
| 6    | 二叉树         | 从上到下打印二叉树                 |                                                              | [题目解析](https://github.com/luxiangqiang/JianZhi-Offer_JavaScript/blob/master/%E4%BB%8E%E4%B8%8A%E6%89%93%E5%8D%B0%E4%BA%8C%E5%8F%89%E6%A0%91.md) |
| 7    | 二叉树         | 二叉搜索树的后序遍历序列           | ![https://github.com/luxiangqiang/JianZhi-Offer_JavaScript/blob/master/images/%E5%88%A4%E6%96%AD%E4%BA%8C%E5%8F%89%E6%A0%91%E7%9A%84%E5%90%8E%E7%BB%AD%E9%81%8D%E5%8E%86.gif](https://github.com/luxiangqiang/JianZhi-Offer_JavaScript/blob/master/images/判断二叉树的后续遍历.gif) | [题目解析](https://github.com/luxiangqiang/JianZhi-Offer_JavaScript/blob/master/%E4%BA%8C%E5%8F%89%E6%90%9C%E7%B4%A2%E6%A0%91%E7%9A%84%E5%90%8E%E7%BB%AD%E9%81%8D%E5%8E%86%E5%BA%8F%E5%88%97.md) |
| 8    | 二叉树         | 二叉树中和为某一值的路径           | ![https://github.com/luxiangqiang/JianZhi-Offer_JavaScript/blob/master/images/%E8%B7%AF%E5%BE%84%E5%92%8C.gif](https://github.com/luxiangqiang/JianZhi-Offer_JavaScript/blob/master/images/路径和.gif) | [题目解析](https://github.com/luxiangqiang/JianZhi-Offer_JavaScript/blob/master/%E4%BA%8C%E5%8F%89%E6%A0%91%E4%B8%AD%E5%92%8C%E4%B8%BA%E6%9F%90%E4%B8%80%E5%80%BC%E7%9A%84%E8%B7%AF%E5%BE%84.md) |
| 9    | 二叉树         | 二叉搜索树的第 K 大节点            | ![https://github.com/luxiangqiang/JianZhi-Offer_JavaScript/blob/master/images/%E6%B1%82%E7%AC%ACk%E5%A4%A7%E8%8A%82%E7%82%B9.gif](https://github.com/luxiangqiang/JianZhi-Offer_JavaScript/blob/master/images/求第k大节点.gif) | [题目解析](https://github.com/luxiangqiang/JianZhi-Offer_JavaScript/blob/master/%E4%BA%8C%E5%8F%89%E6%A0%91%E6%90%9C%E7%B4%A2%E7%AC%AC%20K%20%E5%A4%A7%E7%BB%93%E7%82%B9.md) |
| 10   | 二叉树         | 二叉树序列化和反序列化             |                                                              | [题目解析](https://github.com/luxiangqiang/JianZhi-Offer_JavaScript/blob/master/%E5%BA%8F%E5%88%97%E5%8C%96%E4%BA%8C%E5%8F%89%E6%A0%91%E5%92%8C%E5%8F%8D%E5%BA%8F%E5%88%97%E5%8C%96%E4%BA%8C%E5%8F%89%E6%A0%91.md) |
| 11   | 二叉树         | 二叉树的深度                       | ![https://github.com/luxiangqiang/JianZhi-Offer_JavaScript/blob/master/images/%E4%BA%8C%E5%8F%89%E6%A0%91%E7%9A%84%E6%B7%B1%E5%BA%A6.gif](https://github.com/luxiangqiang/JianZhi-Offer_JavaScript/blob/master/images/二叉树的深度.gif) | [题目解析](https://github.com/luxiangqiang/JianZhi-Offer_JavaScript/blob/master/%E4%BA%8C%E5%8F%89%E6%A0%91%E7%9A%84%E6%B7%B1%E5%BA%A6.md) |
| 12   | 二叉树题型总结 | 二叉树小结                         |                                                              | [小结](https://github.com/luxiangqiang/JianZhi-Offer_JavaScript/blob/master/%E5%89%91%E6%8C%87%20offer%20%E4%BA%8C%E5%8F%89%E6%A0%91%E6%80%BB%E7%BB%93.md) |
| 13   | 数组           | 数组中重复的数字                   |                                                              | [题目解析](https://github.com/luxiangqiang/JianZhi-Offer_JavaScript/blob/master/%E6%95%B0%E7%BB%84%E4%B8%AD%E9%87%8D%E5%A4%8D%E7%9A%84%E6%95%B0%E5%AD%97.md) |
| 14   | 数组           | 二维数组中的查找                   |                                                              | [题目解析](https://github.com/luxiangqiang/JianZhi-Offer_JavaScript/blob/master/%E4%BA%8C%E7%BB%B4%E6%95%B0%E7%BB%84%E4%B8%AD%E7%9A%84%E6%9F%A5%E6%89%BE.md) |
| 15   | 数组           | 旋转数组中的最小数字               |                                                              | [题目解析](https://github.com/luxiangqiang/JianZhi-Offer_JavaScript/blob/master/%E6%97%8B%E8%BD%AC%E6%95%B0%E7%BB%84%E4%B8%AD%E7%9A%84%E6%9C%80%E5%B0%8F%E6%95%B0%E5%AD%97.md) |
| 16   | 数组           | 调整数组的顺序让所有奇数在偶数面前 |                                                              | [题目解析](https://github.com/luxiangqiang/JianZhi-Offer_JavaScript/blob/master/%E8%B0%83%E6%95%B4%E6%95%B0%E7%BB%84%E7%9A%84%E9%A1%BA%E5%BA%8F%E4%BD%BF%E5%85%B6%E5%A5%87%E6%95%B0%E4%BD%8D%E4%BA%8E%E5%81%B6%E6%95%B0%E7%9A%84%E5%89%8D%E9%9D%A2.md) |
| 17   | 数组           | 数组中出现次数超过一半的数字       |                                                              | [题目解析](https://github.com/luxiangqiang/JianZhi-Offer_JavaScript/blob/master/%E6%95%B0%E7%BB%84%E4%B8%AD%E5%87%BA%E7%8E%B0%E6%AC%A1%E6%95%B0%E8%B6%85%E8%BF%87%E4%B8%80%E5%8D%8A%E7%9A%84%E6%95%B0%E5%AD%97.md) |
| 18   | 数组           | 连续子数组的最大和                 |                                                              | [题目解析](https://github.com/luxiangqiang/JianZhi-Offer_JavaScript/blob/master/%E8%BF%9E%E7%BB%AD%E5%AD%90%E6%95%B0%E7%BB%84%E7%9A%84%E6%9C%80%E5%A4%A7%E5%92%8C.md) |
| 19   | 数组           | 在排序数组中查找数字               |                                                              | [题目解析](https://github.com/luxiangqiang/JianZhi-Offer_JavaScript/blob/master/%E5%9C%A8%E6%8E%92%E5%BA%8F%E6%95%B0%E7%BB%84%E4%B8%AD%E6%9F%A5%E6%89%BE%E6%95%B0%E5%AD%97.md) |
| 20   | 数组           | 数组小结                           |                                                              | [小结](https://github.com/luxiangqiang/JianZhi-Offer_JavaScript/blob/master/%E5%89%91%E6%8C%87%20offer%20%E6%95%B0%E7%BB%84%E6%80%BB%E7%BB%93.md) |
| 21   | 字符串         | 替换空格                           |                                                              | [题目解析](https://github.com/luxiangqiang/JianZhi-Offer_JavaScript/blob/master/%E6%9B%BF%E6%8D%A2%E7%A9%BA%E6%A0%BC.md) |
| 22   | 字符串         | 表示数值的字符串                   |                                                              | [题目解析](https://github.com/luxiangqiang/JianZhi-Offer_JavaScript/blob/master/%E8%A1%A8%E7%A4%BA%E6%95%B0%E5%80%BC%E7%9A%84%E5%AD%97%E7%AC%A6%E4%B8%B2.md) |
| 23   | 字符串         | 字符串的排列                       |                                                              | [题目解析](https://github.com/luxiangqiang/JianZhi-Offer_JavaScript/blob/master/%E5%AD%97%E7%AC%A6%E4%B8%B2%E7%9A%84%E6%8E%92%E5%88%97.md) |
| 24   | 字符串         | 最长不含重复字符的子字符串         |                                                              | [题目解析](https://github.com/luxiangqiang/JianZhi-Offer_JavaScript/blob/master/%E6%9C%80%E9%95%BF%E4%B8%8D%E5%90%AB%E9%87%8D%E5%A4%8D%E5%AD%97%E7%AC%A6%E7%9A%84%E5%AD%90%E5%AD%97%E7%AC%A6%E4%B8%B2.md) |
| 25   | 字符串         | 翻转字符串                         |                                                              | [题目解析](https://github.com/luxiangqiang/JianZhi-Offer_JavaScript/blob/master/%E5%8F%8D%E8%BD%AC%E5%AD%97%E7%AC%A6%E4%B8%B2.md) |
| 26   | 字符串         | 第一次只出现一次的字符             |                                                              | [题目解析](https://github.com/luxiangqiang/JianZhi-Offer_JavaScript/blob/master/第一个只出现一次的字符串.md) |
| 27   | 栈/队列        | 两个栈实现一个队列                 |                                                              | [题目解析](https://github.com/luxiangqiang/JianZhi-Offer_JavaScript/blob/master/%E4%B8%A4%E4%B8%AA%E6%A0%88%E5%AE%9E%E7%8E%B0%E9%98%9F%E5%88%97.md) |
| 28   | 栈/队列        | 包含 min 函数的栈                  |                                                              | [题目解析](https://github.com/luxiangqiang/JianZhi-Offer_JavaScript/blob/master/%E5%8C%85%E5%90%AB%20min%20%E5%87%BD%E6%95%B0%E7%9A%84%E6%A0%88.md) |

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