diff --git a/source/_posts/acm-cheat-sheet.md b/source/_posts/acm-cheat-sheet.md
index bb3802edc0d8848249edb1e6dc09bd917b711273..39aa9bf45179df10bcdc01f97e618da9d85ae66d 100644
--- a/source/_posts/acm-cheat-sheet.md
+++ b/source/_posts/acm-cheat-sheet.md
@@ -12,4 +12,4 @@ tags:
 
 ## 下载 ##
 
-+ [PDF格式](https://github.com/soulmachine/acm-cheat-sheet/blob/master/C++/%E6%89%8B%E5%86%99%E4%BB%A3%E7%A0%81%E5%BF%85%E5%A4%87%E6%89%8B%E5%86%8C(C++%E7%89%88).pdf?raw=true)
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++ [PDF格式](https://github.com/soulmachine/acm-cheat-sheet/blob/master/C++/%E6%89%8B%E5%86%99%E4%BB%A3%E7%A0%81%E5%BF%85%E5%A4%87%E6%89%8B%E5%86%8C%28C++%E7%89%88%29.pdf?raw=true)
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