Update differential-constraints.md

更改了错误的函数名

diff --git a/docs/graph/differential-constraints.md b/docs/graph/differential-constraints.md
index fad488f..744a4d7 100644 (file)
--- a/docs/graph/differential-constraints.md
+++ b/docs/graph/differential-constraints.md
@@ -80,7 +80,7 @@ int main()
 下面是用 Bellman-Ford 算法判断图中是否存在负环的代码实现，请在调用前先保证图是联通的。
 
 ```cpp
-bool SPFA()
+bool Bellman_Ford()
 {
        for(int i=0;i<n;i++)
        {