From 053d92d5d0215350681d55906f4951d8edc0c59e Mon Sep 17 00:00:00 2001
From: Ir1dXD <sirius.caffrey@gmail.com>
Date: Sat, 24 Nov 2018 13:13:15 +0800
Subject: [PATCH] Update prefix-sum.md

---
 docs/basic/prefix-sum.md | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/docs/basic/prefix-sum.md b/docs/basic/prefix-sum.md
index b0786b17..46a967e8 100644
--- a/docs/basic/prefix-sum.md
+++ b/docs/basic/prefix-sum.md
@@ -53,8 +53,7 @@ int main() {
 
 ### 习题
 
-1.  [ U53525 前缀和（例题）
-    ](https://www.luogu.org/problemnew/show/U53525)
+1.  [U53525 前缀和（例题）](https://www.luogu.org/problemnew/show/U53525)
 
 ### 参考
 
-- 
2.11.0