diff --git a/notes/Leetcode 题解 - 目录.md b/notes/Leetcode 题解 - 目录.md
index dd718840..5cf359cd 100644
--- a/notes/Leetcode 题解 - 目录.md	
+++ b/notes/Leetcode 题解 - 目录.md	
@@ -6,19 +6,19 @@
 
 ## 算法思想
 
-- [双指针](Leetcode%20题解%20-%20双指针.md)
+- [[已做]双指针](Leetcode%20题解%20-%20双指针.md)
 - [排序](Leetcode%20题解%20-%20排序.md)
-- [贪心思想](Leetcode%20题解%20-%20贪心思想.md)
+- [[已做]贪心思想](Leetcode%20题解%20-%20贪心思想.md)
 - [二分查找](Leetcode%20题解%20-%20二分查找.md)
 - [分治](Leetcode%20题解%20-%20分治.md)
-- [搜索](Leetcode%20题解%20-%20搜索.md)
-- [动态规划](Leetcode%20题解%20-%20动态规划.md)
+- [[已做]搜索](Leetcode%20题解%20-%20搜索.md)
+- [[已做]动态规划](Leetcode%20题解%20-%20动态规划.md)
 - [数学](Leetcode%20题解%20-%20数学.md)
 
 ## 数据结构相关
 
 - [链表](Leetcode%20题解%20-%20链表.md)
-- [树](Leetcode%20题解%20-%20树.md)
+- [[已做]树](Leetcode%20题解%20-%20树.md)
 - [栈和队列](Leetcode%20题解%20-%20栈和队列.md)
 - [哈希表](Leetcode%20题解%20-%20哈希表.md)
 - [字符串](Leetcode%20题解%20-%20字符串.md)