diff --git a/15lanqiao/test6.cpp b/15lanqiao/test6.cpp
index 8efd5a1..786880a 100644
--- a/15lanqiao/test6.cpp
+++ b/15lanqiao/test6.cpp
@@ -1,3 +1,4 @@
+// lanqiao 19711 数字接龙
 #include<bits/stdc++.h>
 using namespace std;
 const int N = 20;