diff --git a/_sidebar.md b/_sidebar.md
index bea6a91..121dd31 100644
--- a/_sidebar.md
+++ b/_sidebar.md
@@ -22,7 +22,7 @@
   - [vTiger](vtiger/_index.md)
 
 - 数据结构和算法
-  - [算法题](algorithm/index.md)
+  - [算法题](algorithm/_index.md)
 - 
 - 求职
   - [职场](work/workplace/index.md)
diff --git a/algorithm/index.md b/algorithm/_index.md
similarity index 79%
rename from algorithm/index.md
rename to algorithm/_index.md
index 75c0396..d9578d8 100644
--- a/algorithm/index.md
+++ b/algorithm/_index.md
@@ -13,7 +13,3 @@
 
 最新的内容在最前面。
 
-### 内容索引
-* [A “word-wrap” functionality（一个字符串包裹函数）](https://www.ossez.com/t/a-word-wrap-functionality/13452)
-* [Prime numbers from 1 to 100 (打印 100 以内的素数)](https://www.ossez.com/t/prime-numbers-from-1-to-100-100/13450)
-