From bb0ef820d937ae92f48a55995cb7d11dac9b24b8 Mon Sep 17 00:00:00 2001
From: Zengtudor <zengtudor@outlook.com>
Date: Fri, 11 Oct 2024 17:02:47 +0800
Subject: [PATCH] update

---
 README.md             | 15 ++++++++++++++-
 src/oj4980/oj4980.cpp |  2 +-
 2 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index f4b8271..67b286b 100755
--- a/README.md
+++ b/README.md
@@ -10,4 +10,17 @@ algorithm_2024
 
 ### [OJ4980:拯救行动](http://noi.openjudge.cn/ch0205/4980/)
 
-#### 未考虑无答案（特殊情况）时输出
\ No newline at end of file
+#### 未考虑无答案（特殊情况）时输出
+
+#### 优先对联是从大到小排序，重载运算符时需反向或者std::greater
+```cpp
+struct Status{
+    Point now;
+    ll step;
+    bool operator<(const Status &that)const noexcept{
+        return this->step > that.step;
+    }
+};
+
+std::priority_queue<Status> q;
+```
\ No newline at end of file
diff --git a/src/oj4980/oj4980.cpp b/src/oj4980/oj4980.cpp
index 638facc..620f9e7 100644
--- a/src/oj4980/oj4980.cpp
+++ b/src/oj4980/oj4980.cpp
@@ -5,7 +5,7 @@
 #include <queue>
 #include <bitset>
 
-typedef long long ll;
+using ll = long long;
 auto &is = std::cin;
 auto &os = std::cout;