diff --git a/README.md b/README.md
index 98e03df..9c610b3 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,4 @@
 # OlympiadCode
 
-一些算法题的仓库
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+一些算法题的仓库
+[洛谷]https://www.luogu.com.cn/
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