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Author SHA1 Message Date
yasinshaw
015828270d vault backup: 2026-03-18 02:41:41 2026-03-18 02:41:41 +08:00
yasinshaw
9273127ed0 docs: 添加开发人员被HRBP面试的准备指南 
- 包含17道HRBP常见面试问题及标准答案
- 涵盖自我介绍、离职原因、职业规划、团队协作等核心话题
- 提供薪资谈判技巧和反向提问建议
- 附面试禁忌、注意事项和准备清单
- 适合开发/技术人员准备HRBP面试
 2026-03-18 02:41:19 +08:00
yasinshaw
7f786fc263 docs: 更新HRBP面试题为面试官版本 
- 重新定位为技术管理者面试HRBP候选人的题库
- 新增14道核心面试题及评分标准
- 添加技术团队适配性专项考察
- 包含情景模拟题和核心能力评分表
- 提供面试技巧和追问方向指导
 2026-03-18 02:39:58 +08:00
yasinshaw
ef8d3e6247 docs: 添加HRBP岗位面试题与标准答案 
- 涵盖10道核心面试题及详细答案
- 包含自我介绍、业务理解、人才管理等模块
- 提供STAR法则回答模板
- 新增情景模拟题和反向提问建议
- 整理HRBP核心能力模型
 2026-03-18 02:37:46 +08:00
yasinshaw
45acecacec vault backup: 2026-03-18 02:36:41 2026-03-18 02:36:41 +08:00
yasinshaw
8e7a4a9c0f vault backup: 2026-03-18 02:31:41 2026-03-18 02:31:41 +08:00
yasinshaw
61cefb0bb9 vault backup: 2026-03-15 11:04:57 2026-03-15 11:04:57 +08:00
yasinshaw
9ce8a1282b vault backup: 2026-03-09 18:23:36 2026-03-09 18:23:36 +08:00
yasinshaw
6d58bb6c74 vault backup: 2026-03-09 18:18:34 2026-03-09 18:18:34 +08:00
yasinshaw
86dadd7498 vault backup: 2026-03-09 18:13:34 2026-03-09 18:13:34 +08:00
yasinshaw
ff4c77b436 vault backup: 2026-03-09 17:58:34 2026-03-09 17:58:34 +08:00
yasinshaw
1b201c1636 vault backup: 2026-03-09 17:53:34 2026-03-09 17:53:34 +08:00
yasinshaw
74fc46df62 vault backup: 2026-03-08 21:49:35 2026-03-08 21:49:35 +08:00
yasinshaw
a572699097 vault backup: 2026-03-08 21:44:35 2026-03-08 21:44:35 +08:00
yasinshaw
c0d1585a32 docs: improve solution explanations for remaining 3 LeetCode problems 
- 电话号码的字母组合: 添加思路推导、详细流程、执行演示和常见错误
- 子集: 添加思路推导、详细流程、执行演示和常见错误
- 单词搜索: 完全重写，添加完整的思路推导、详细流程、边界分析等

所有文件现在都包含：
- 思路推导（从暴力解法分析）
- 详细的算法流程（含Q&A）
- 关键细节说明
- 边界条件分析
- 执行过程演示
- 常见错误分析
 2026-03-08 21:33:59 +08:00
yasinshaw
5c1c974e88 docs: 改进LeetCode二叉树题目解题思路 
按照改进方案，为以下6个二叉树题目增强了解题思路的详细程度：

1. 二叉树的中序遍历
   - 增加"思路推导"部分，解释递归到迭代的转换
   - 详细说明迭代法的每个步骤
   - 增加执行过程演示和多种解法

2. 二叉树的最大深度
   - 增加"思路推导"，对比DFS和BFS
   - 详细解释递归的基准情况
   - 增加多种解法和变体问题

3. 从前序与中序遍历序列构造二叉树
   - 详细解释前序和中序的特点
   - 增加"思路推导"，说明如何分治
   - 详细说明切片边界计算

4. 对称二叉树
   - 解释镜像对称的定义
   - 详细说明递归比较的逻辑
   - 增加迭代解法和变体问题

5. 翻转二叉树
   - 解释翻转的定义和过程
   - 详细说明多值赋值的执行顺序
   - 增加多种解法和有趣的故事

6. 路径总和
   - 详细解释路径和叶子节点的定义
   - 说明为什么使用递减而非累加
   - 增加多种解法和变体问题

每个文件都包含：
- 完整的示例和边界条件分析
- 详细的算法流程和图解
- 关键细节说明
- 常见错误分析
- 复杂度分析（详细版）
- 执行过程演示
- 多种解法
- 变体问题
- 总结

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
 2026-03-08 21:33:57 +08:00
yasinshaw
67189941d8 docs: 改进 LeetCode 题目解题思路详细程度 
改进以下三个题目的文档：
1. 最小栈 (LeetCode 155)
2. 最大正方形 (LeetCode 221)
3. 柱状图中最大的矩形 (LeetCode 84)

改进内容：
- 新增"思路推导"部分：从暴力解法分析开始，逐步优化
- 详细化"解题思路"部分：分步骤说明，增加 Q&A 问答
- 新增"关键细节说明"：解释为什么这样写代码
- 新增"边界条件分析"：覆盖各种特殊情况
- 新增"执行过程演示"：完整示例跟踪
- 新增"常见错误"：对比错误和正确写法
- 新增"进阶问题"：扩展思路

参考文档：算法解题思路改进方案.md

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
 2026-03-08 21:32:25 +08:00
yasinshaw
a5736a4db7 docs: improve solution explanations for 最长回文子串 and 括号生成 
- 添加思路推导部分，从暴力解法分析优化过程
- 增加详细的算法流程和Q&A形式的解释
- 添加执行过程演示和常见错误分析
- 完善边界条件和复杂度分析
- 保持原有的代码实现和进阶问题
 2026-03-08 21:32:02 +08:00
yasinshaw
f0833d63cf docs: 增强 LeetCode 题目解题思路详细程度 
对两个 LeetCode Hot 100 题目进行了详细的思路改进：

## 改进内容

### 1. 两数相加.md
- 新增"思路推导"部分：从暴力解法分析到优化思考
- 详细化"解题思路"：分步骤说明每个关键点
- 增加"关键细节说明"：4个核心细节深入分析
- 增加"边界条件分析"：4种边界情况完整演示
- 增加"Q&A 问题解释"：5个常见问题详细解答
- 增加"执行过程演示"：完整执行过程可视化
- 增加"常见错误"：5个典型错误对比说明

### 2. 删除链表的倒数第N个结点.md
- 新增"思路推导"部分：暴力解法到双指针优化
- 详细化双指针法、计算长度法、栈法的完整流程
- 增加"关键细节说明"：n+1步、哑节点等核心概念
- 增加"边界条件分析"：删除头、尾、中间节点等场景
- 增加"Q&A 问题解释"：5个核心问题深入解答
- 增加"执行过程演示"：完整执行过程可视化
- 增加"常见错误"：5个典型错误对比说明

## 改进效果
- 从简单算法流程升级为完整思考路径
- 从基础步骤说明升级为详细原理分析
- 从复杂度概览升级为逐步推导过程
- 增加了可视化执行过程和常见错误对比
- 更适合面试准备和深度理解

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
 2026-03-08 21:31:34 +08:00
yasinshaw
24d5923f5e vault backup: 2026-03-08 20:59:34 2026-03-08 20:59:34 +08:00
yasinshaw
68f4771f25 vault backup: 2026-03-08 20:54:34 2026-03-08 20:54:34 +08:00
yasinshaw
b8d34c15e8 vault backup: 2026-03-08 20:44:34 2026-03-08 20:44:34 +08:00
yasinshaw
af12476b9d vault backup: 2026-03-08 20:39:33 2026-03-08 20:39:33 +08:00
yasinshaw
b8b28ce850 vault backup: 2026-03-08 17:34:10 2026-03-08 17:34:10 +08:00
yasinshaw
f956786a44 vault backup: 2026-03-08 11:38:01 2026-03-08 11:38:01 +08:00
yasinshaw
16ae667e2b vault backup: 2026-03-08 11:33:00 2026-03-08 11:33:00 +08:00
yasinshaw
ec78ea8752 vault backup: 2026-03-08 11:27:59 2026-03-08 11:27:59 +08:00
yasinshaw
fabdaaee1f docs: 优化Java NIO文档图解,使用Excalidraw可视化 
- 将ASCII文字图替换为专业的Excalidraw图表
- 新增4个可视化图表:三大核心组件架构、Selector多路复用模型、Buffer核心属性、零拷贝原理对比
- 图表使用配色方案区分不同组件(蓝色-Channel, 绿色-Buffer, 橙色-Selector)
- 在Obsidian中可通过![[...]]语法直接嵌入查看
 2026-03-08 11:25:54 +08:00
yasinshaw
932dc8844d vault backup: 2026-03-08 11:22:59 2026-03-08 11:22:59 +08:00
yasinshaw
34a440b064 vault backup: 2026-03-08 11:12:59 2026-03-08 11:12:59 +08:00
yasinshaw
04732a0119 docs: add Obsidian skills usage guide 
Added comprehensive guide for Obsidian visualization skills:

**Installed Obsidian Skills:**
1. obsidian-bases - Database view management
2. obsidian-cli - Command-line operations
3. obsidian-markdown - Flavored markdown creation

**Installed Obsidian Plugins:**
Community Plugins:
- dataview - Query and visualize data
- kanban - Task board view
- calendar - Daily notes calendar
- heatmap - Activity heatmap (GitHub-style)
- obsidian-tasks-plugin - Advanced task management
- obsidian-chart - Create charts and graphs
- obsidian-advanced-slides - Presentation slides
- obsidian-git - Git version control

Core Plugins:
- canvas - Whiteboard canvas
- bases - Database views
- graph - Relationship graph
- graph-analysis - Graph analysis
- webviewer - Web content viewer

**Guide Contents:**
- Skill usage examples
- Visualization workflows
- Best practices
- Keyboard shortcuts
- Troubleshooting tips
- Integration with Claude Code

**Use Cases:**
1. Knowledge graph building with Graph + Canvas
2. Learning progress tracking with Kanban + Tasks
3. Interview preparation planning with Bases
4. Statistics visualization with Charts
5. Daily learning flow with Calendar + Heatmap

All configurations saved in .obsidian/ for automatic sync.

Generated with [Claude Code](https://claude.ai/code)
via [Happy](https://happy.engineering)

Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: Happy <yesreply@happy.engineering>
 2026-03-06 10:55:55 +08:00
yasinshaw
0fbb50959e feat: add Obsidian visualization plugins and guide 
Added comprehensive visualization plugins and setup guide:

**Installed Community Plugins:**
1. **Dataview** - Query and visualize data from Markdown files
   - Create tables, lists, task views
   - Filter and sort by metadata
2. **Kanban** - Task board with drag-and-drop
   - Track learning progress
   - Manage interview prep tasks
3. **Calendar** - Daily notes with calendar view
   - Track study consistency
   - Auto-generate daily journals
4. **Heatmap** - Activity heatmap (GitHub-style)
   - Visualize study frequency
   - Track learning streaks
5. **Obsidian Tasks** - Advanced task management
   - Query tasks by due date, tags, priority
   - Track overdue and upcoming tasks
6. **Obsidian Chart** - Create charts and graphs
   - Pie charts, bar charts, line charts
   - Visualize learning statistics
7. **Advanced Slides** - Create presentations
   - Build interview prep slides
   - Support for Marp.js

**Enhanced Core Plugins:**
- Enabled Graph Analysis for better relationship visualization
- Enabled Webviewer for embedded content

**Created Documentation:**
- Comprehensive installation and usage guide
- Plugin configuration examples
- Best practices for interview preparation
- Keyboard shortcuts
- Troubleshooting tips

**Use Cases:**
- Build knowledge graph with Graph View + Canvas
- Track progress with Calendar + Heatmap + Tasks
- Review problems with Dataview + Kanban
- Create presentations with Advanced Slides

All configurations saved in .obsidian/ directory for automatic sync.

Generated with [Claude Code](https://claude.ai/code)
via [Happy](https://happy.engineering)

Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: Happy <yesreply@happy.engineering>
 2026-03-06 10:50:03 +08:00
yasinshaw
7aa971f511 feat: add Netty and Java NIO interview questions 
Added 3 comprehensive interview documents covering Netty and Java NIO:

**1. Netty Core Principles (Netty核心原理.md)**
- Core components: Channel, EventLoop, ChannelPipeline, ByteBuf
- Reactor threading model (single/multi-threaded, master-slave)
- ByteBuf vs Java NIO ByteBuffer
- Zero-copy implementation (4 approaches)
- ChannelPipeline and ChannelHandler
- TCP sticky/unpacking problem solutions
- Heartbeat mechanism

**2. Java NIO Core Principles (Java NIO核心原理.md)**
- NIO vs BIO comparison
- Three core components: Channel, Buffer, Selector
- Selector multiplexing mechanism
- Channel vs Stream differences
- Buffer core attributes and usage
- Non-blocking I/O implementation
- Zero-copy with transferTo and MappedByteBuffer

**3. Netty Practice Scenarios (Netty实战场景.md)**
- High-performance RPC framework design
- WebSocket server implementation
- Million-connection IM system architecture
- Memory leak detection and resolution
- Graceful shutdown implementation
- Heartbeat and reconnection mechanisms

Each document includes:
- Detailed problem descriptions
- Complete code examples (Java)
- Architecture diagrams
- Best practices
- Performance optimization tips
- P7-level bonus points

Total: 3 documents, covering:
- Theoretical foundations
- Practical implementations
- Production scenarios
- Performance tuning
- Common pitfalls

Suitable for backend P7 interview preparation.

Generated with [Claude Code](https://claude.ai/code)
via [Happy](https://happy.engineering)

Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: Happy <yesreply@happy.engineering>
 2026-03-06 10:20:11 +08:00
yasinshaw
b773a4fa83 vault backup: 2026-03-06 10:18:18 2026-03-06 10:18:18 +08:00
yasinshaw
4247e0700d refactor: convert all LeetCode solutions to Go-only 
Changes:
- Removed all Java code implementations
- Kept only Go language solutions
- Renamed "## Go 解法" to "## 解法"
- Removed "### Go 代码要点" sections
- Cleaned up duplicate headers and empty sections
- Streamlined documentation for better readability

Updated files (9):
- 三数之和.md
- 两数相加.md
- 无重复字符的最长子串.md
- 最长回文子串.md
- 括号生成.md
- 子集.md
- 单词搜索.md
- 电话号码的字母组合.md
- 柱状图中最大的矩形.md

All 22 LeetCode Hot 100 Medium problems now use Go exclusively.
Code is cleaner, more focused, and easier to follow.

Generated with [Claude Code](https://claude.ai/code)
via [Happy](https://happy.engineering)

Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: Happy <yesreply@happy.engineering>
 2026-03-05 12:32:55 +08:00
yasinshaw
58b7491868 fix: remove remaining Java implementation sections 
- Remove all "### Java 实现" sections from all markdown files
- Clean up remaining Java code blocks and references
- Ensure only Go code remains in all documentation
- Complete the Java to Go migration for all 22 files
 2026-03-05 12:32:09 +08:00
yasinshaw
15dbd75004 refactor: remove Java code sections from all LeetCode Hot 100 markdown files 
- Remove all "## Java 解法" sections and Java code blocks
- Replace "## Go 解法" with "## 解法"
- Remove "### Go 代码要点" and "### Java 代码要点" sections
- Keep all Go code sections intact
- Maintain complete documentation structure and content
- Update 22 markdown files in the LeetCode Hot 100 directory
 2026-03-05 12:31:48 +08:00
yasinshaw
184f388a45 vault backup: 2026-03-05 12:28:58 2026-03-05 12:28:58 +08:00
yasinshaw
f138f9649d feat: add LeetCode Hot 100 Medium problems collection 
Added 22 high-frequency LeetCode Hot 100 Medium problems with detailed solutions:

**Core Problems:**
- 两数相加 (LeetCode 2) - Linked list manipulation
- 无重复字符的最长子串 (LeetCode 3) - Sliding window
- 三数之和 (LeetCode 15) - Sorting + two pointers

**Array & String:**
- 盛最多水的容器 (LeetCode 11) - Two pointers
- 最长回文子串 (LeetCode 5) - DP / expand around center
- 除自身以外数组的乘积 (LeetCode 238) - Prefix/suffix product
- 最长连续序列 (LeetCode 128) - HashSet

**Backtracking:**
- 电话号码的字母组合 (LeetCode 17) - Backtracking
- 括号生成 (LeetCode 22) - DFS
- 子集 (LeetCode 78) - Backtracking

**Linked List:**
- 删除链表的倒数第N个结点 (LeetCode 19) - Fast/slow pointers

**Binary Tree:**
- 二叉树的中序遍历 (LeetCode 94) - Recursive/iterative
- 二叉树的最大深度 (LeetCode 104) - DFS/BFS
- 翻转二叉树 (LeetCode 226) - Recursive
- 对称二叉树 (LeetCode 101) - Recursive
- 路径总和 (LeetCode 112) - DFS
- 从前序与中序遍历序列构造二叉树 (LeetCode 105) - Recursive

**Dynamic Programming:**
- 柱状图中最大的矩形 (LeetCode 84) - Monotonic stack
- 最大正方形 (LeetCode 221) - DP
- 完全平方数 (LeetCode 279) - DP

**Stack:**
- 最小栈 (LeetCode 155) - Stack design

**DFS/BFS:**
- 单词搜索 (LeetCode 79) - DFS backtracking

Each problem includes:
- Detailed problem description with examples
- Multiple solution approaches
- Go and Java implementations
- Time & space complexity analysis
- Advanced follow-up questions
- P7-level bonus points (deep understanding, real-world applications)

Total: 22 problems, 2500+ lines of content
Suitable for P7 backend interview preparation

Generated with [Claude Code](https://claude.ai/code)
via [Happy](https://happy.engineering)

Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: Happy <yesreply@happy.engineering>
 2026-03-05 12:26:28 +08:00
yasinshaw
e75e4778b1 feat: add 19 LeetCode Hot 100 medium problems with detailed solutions 
批量生成 19 道 LeetCode Hot 100 Medium 难度题目，每道题包含：
- 题目描述和示例
- 多种解题思路（回溯、DP、双指针等）
- Go 和 Java 双语解答
- 完整的测试用例
- 复杂度分析
- 进阶问题
- P7 加分项（深度理解、实战扩展、变形题目）

新增题目：
1. 盛最多水的容器 (Container With Most Water) - LeetCode 11
2. 电话号码的字母组合 (Letter Combinations) - LeetCode 17
3. 删除链表的倒数第N个结点 - LeetCode 19
4. 括号生成 - LeetCode 22
5. 最长回文子串 - LeetCode 5
6. 子集 - LeetCode 78
7. 单词搜索 - LeetCode 79
8. 柱状图中最大的矩形 - LeetCode 84
9. 最大正方形 - LeetCode 221
10. 完全平方数 - LeetCode 279
11. 最长连续序列 - LeetCode 128
12. 除自身以外数组的乘积 - LeetCode 238
13. 最小栈 - LeetCode 155
14. 二叉树的中序遍历 - LeetCode 94
15. 二叉树的最大深度 - LeetCode 104
16. 翻转二叉树 - LeetCode 226
17. 对称二叉树 - LeetCode 101
18. 路径总和 - LeetCode 112
19. 从前序与中序遍历序列构造二叉树 - LeetCode 105

所有代码均包含：
- 清晰的注释说明
- 完整的可运行测试用例
- 时间和空间复杂度分析
- 优化技巧和变形题目

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
 2026-03-05 12:26:07 +08:00
yasinshaw
dcd3e136ec vault backup: 2026-03-05 12:23:56 2026-03-05 12:23:56 +08:00
yasinshaw
bc0ed186c8 refactor: reorganize interview files and fix errors 
Changes:
- Fixed CAP theory typo: "CP、AP、AP" → "CP、AP、CA"
- Reorganized file classifications for better structure:
  * Moved 4 database-related files from 01-分布式系统 to 02-数据库
  * Moved ConcurrentHashMap from 03-缓存 to 05-并发编程
  * Renamed 消息队列（RocketMQ_Kafka）.md → 消息队列_RocketMQ_Kafka.md
- Updated project overview with new structure (73 files, 15 categories)
- Database category now has 6 files (more cohesive)
- Concurrency category now has 5 files (better organized)

File movements:
- 事务隔离级别.md: 01-分布式系统 → 02-数据库
- 数据库锁机制.md: 01-分布式系统 → 02-数据库
- 分库分表.md: 01-分布式系统 → 02-数据库
- MySQL主从延迟.md: 01-分布式系统 → 02-数据库
- ConcurrentHashMap原理.md: 03-缓存 → 05-并发编程

Generated with [Claude Code](https://claude.ai/code)
via [Happy](https://happy.engineering)

Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: Happy <yesreply@happy.engineering>
 2026-03-04 01:43:26 +08:00
yasinshaw
180c558835 vault backup: 2026-03-03 20:16:26 2026-03-03 20:16:26 +08:00
yasinshaw
bde3eb8b95 vault backup: 2026-03-03 00:37:31 2026-03-03 00:37:31 +08:00
yasinshaw
2fc0fbccf3 vault backup: 2026-03-03 00:32:30 2026-03-03 00:32:30 +08:00
yasinshaw
99a5bda044 vault backup: 2026-03-03 00:27:30 2026-03-03 00:27:30 +08:00
yasinshaw
0bcdbdc2b7 vault backup: 2026-03-03 00:22:30 2026-03-03 00:22:30 +08:00
yasinshaw
9c9610fc60 feat: 添加简历面试题 
- 项目深挖题：5个重点项目STAR法则回答，针对每个项目准备深挖问题
- 场景设计题：秒杀系统、优惠券系统、数据一致性、限流降级等设计题
- 个人发展题：职业规划、学习能力、团队协作、抗压能力、价值观
- 离职原因与动机：离职原因、择公司、职业目标、反问技巧
- 薪资谈判：谈判策略、Web3特有问题（代币激励、远程工作）、DO & DON'T

针对简历特点：
- 结合字节跳动、阿里巴巴、ThoughtWorks的项目经验
- 提供STAR法则回答模板
- 强调Web2经验向Web3的转化
- 包含大量代码示例和架构图
- 提供薪资谈判实战策略

适用场景：
- 面试前准备：项目深挖、场景设计
- 面试中：个人发展、离职原因
- 面试后：薪资谈判、offer评估
 2026-03-03 00:20:12 +08:00
yasinshaw
4fb7260c68 vault backup: 2026-03-03 00:17:29 2026-03-03 00:17:29 +08:00
yasinshaw
be2a1cf0d7 docs: 添加Web3面试题总览文档 
- 题目列表和概览
- 核心亮点总结
- 推荐学习路径（3个月）
- 面试策略和常见问题
- 快速开始指南
- 面试准备进度模板
 2026-03-03 00:15:04 +08:00