diff --git a/README.md b/README.md
index 8560da6..7217e69 100644
--- a/README.md
+++ b/README.md
@@ -377,4 +377,4 @@ void createjz(){//创建邻接矩阵函数
  ![c3](images/printf.svg)
 C4:void printf();
 ![C2](images/suanfa.svg)
- C3:void Dijkstra(int v1,int v2);
+ C5:void Dijkstra(int v1,int v2);