diff --git a/leetcode b/leetcode
deleted file mode 120000
index 3eb14711d..000000000
--- a/leetcode
+++ /dev/null
@@ -1 +0,0 @@
-src/leetcode/
\ No newline at end of file
diff --git a/src/README.md b/src/README.md
index 230a919ab..cff767904 100644
--- a/src/README.md
+++ b/src/README.md
@@ -10,6 +10,7 @@
 2. 第二部分: 算法
 3. 第三部分: 专题
 4. 第四部分: leetcode 题解
+5. 华为 OD 机试题解
 
 ## 反馈问题
 
diff --git a/src/SUMMARY.md b/src/SUMMARY.md
index cd0580a82..e3e09249c 100644
--- a/src/SUMMARY.md
+++ b/src/SUMMARY.md
@@ -399,6 +399,7 @@
     - [最大相连男生数/学生方阵](od/2024e200/adjacent-schoolboys/index.md)
     - [数字游戏](od/2024e200/digit-game/index.md)
     - [寻找符合要求的最长子串 - 滑动窗口](od/2024e200/longest-substring/index.md)
+    - [跳格子3 - 动态规划](od/2024e200/hopscotch3/index.md)
     - [二叉树计算 - 树](od/2024e200/calculate-binary-tree/index.md)
     - [猴子吃桃/爱吃蟠桃的孙悟空 - 二分查找](od/2024e200/monkey-eats-peach/index.md)
     - [机器人活动区域 - DFS](od/2024e200/moving-area-of-robot/index.md)
diff --git a/src/od/.gitignore b/src/od/.gitignore
deleted file mode 100644
index bc0fadee5..000000000
--- a/src/od/.gitignore
+++ /dev/null
@@ -1,3 +0,0 @@
-/book
-/target
-target
diff --git a/src/od/2024e200/hopscotch3/Cargo.toml b/src/od/2024e200/hopscotch3/Cargo.toml
new file mode 100644
index 000000000..59a26c6fb
--- /dev/null
+++ b/src/od/2024e200/hopscotch3/Cargo.toml
@@ -0,0 +1,7 @@
+[package]
+name = "e200-hopscotch3"
+version = "0.1.0"
+edition = "2021"
+publish = false
+
+[dependencies]
diff --git a/src/od/2024e200/hopscotch3/assets/input1.txt b/src/od/2024e200/hopscotch3/assets/input1.txt
new file mode 100644
index 000000000..d1b217c4b
--- /dev/null
+++ b/src/od/2024e200/hopscotch3/assets/input1.txt
@@ -0,0 +1,3 @@
+6
+1 -1 -6 7 -17 7
+2
\ No newline at end of file
diff --git a/src/od/2024e200/hopscotch3/assets/output1.txt b/src/od/2024e200/hopscotch3/assets/output1.txt
new file mode 100644
index 000000000..da2d3988d
--- /dev/null
+++ b/src/od/2024e200/hopscotch3/assets/output1.txt
@@ -0,0 +1 @@
+14
\ No newline at end of file
diff --git a/src/od/2024e200/hopscotch3/index.md b/src/od/2024e200/hopscotch3/index.md
new file mode 100644
index 000000000..256b43c93
--- /dev/null
+++ b/src/od/2024e200/hopscotch3/index.md
@@ -0,0 +1,38 @@
+# 跳格子3
+
+## 题目描述
+
+小明和朋友们一起玩跳格子游戏, 每个格子上有特定的分数 score = [1, -1, -6, 7, -17, 7],
+
+从起点score[0]开始, 每次最大的步长为k, 请你返回小明跳到终点 score[n-1] 时, 能得到的最大得分.
+
+### 输入描述
+
+- 第一行输入总的格子数量 n
+- 第二行输入每个格子的分数 score[i]
+- 第三行输入最大跳的步长 k
+
+备注:
+
+- 格子的总长度 n 和步长 k 的区间在 [1, 100000]
+- 每个格子的分数 score[i] 在 [-10000, 10000] 区间中
+
+### 输出描述
+
+输出最大得分.
+
+### 示例1
+
+输入:
+
+```text
+{{#include assets/input1.txt}}
+```
+
+输出:
+
+```text
+{{#include assets/output1.txt}}
+```
+
+## 题解
diff --git a/src/od/2024e200/hopscotch3/src/main.rs b/src/od/2024e200/hopscotch3/src/main.rs
new file mode 100644
index 000000000..e7a11a969
--- /dev/null
+++ b/src/od/2024e200/hopscotch3/src/main.rs
@@ -0,0 +1,3 @@
+fn main() {
+    println!("Hello, world!");
+}
diff --git a/src/od/2024e200/index.md b/src/od/2024e200/index.md
index e202870ef..9d58107a2 100644
--- a/src/od/2024e200/index.md
+++ b/src/od/2024e200/index.md
@@ -15,7 +15,8 @@
 13. [最大相连男生数/学生方阵](adjacent-schoolboys/index.md)
 14. [数字游戏](digit-game/index.md)
 15. [寻找符合要求的最长子串 - 滑动窗口](longest-substring/index.md)
-16. [二叉树计算 - 树](calculate-binary-tree/index.md)
-17. [猴子吃桃/爱吃蟠桃的孙悟空 - 二分查找](monkey-eats-peach/index.md)
-18. [机器人活动区域 - DFS](moving-area-of-robot/index.md)
-19. [简易压缩算法/一种字符串压缩表示的解压 - 字符串](compress-string/index.md)
+16. [跳格子3 - 动态规划](hopscotch3/index.md)
+17. [二叉树计算 - 树](calculate-binary-tree/index.md)
+18. [猴子吃桃/爱吃蟠桃的孙悟空 - 二分查找](monkey-eats-peach/index.md)
+19. [机器人活动区域 - DFS](moving-area-of-robot/index.md)
+20. [简易压缩算法/一种字符串压缩表示的解压 - 字符串](compress-string/index.md)