diff --git a/src/8/9/809maze.cpp b/src/8/9/809maze.cpp
index 5839c3a..d4d55d8 100644
--- a/src/8/9/809maze.cpp
+++ b/src/8/9/809maze.cpp
@@ -104,13 +104,10 @@ int main() {
     // 题目输入为文件，实际比赛中需要取消注释
     // freopen("maze.in", "r", stdin);
     // freopen("maze.out", "w", stdout);
-
-    FAST_IO;
-
+    std ::ios_base ::sync_with_stdio(false);
+    std ::cin.tie(0);
     std::cin >> T;
     while (T--) {
         solve();
     }
-
-    return 0;
 }