diff --git a/TangDou/AcWing_TiGao/T3/MinialSpanningTree/1141.md b/TangDou/AcWing_TiGao/T3/MinialSpanningTree/1141.md
index 53b2952..8521776 100644
--- a/TangDou/AcWing_TiGao/T3/MinialSpanningTree/1141.md
+++ b/TangDou/AcWing_TiGao/T3/MinialSpanningTree/1141.md
@@ -157,6 +157,8 @@ int sum;     // 总边长
 int prim(int s) {
     // 由于调用多次prim，所以每次需要清零
     memset(dis, 0x3f, sizeof dis);
+    dis[s] = 0;
+    
     res = 0;
     // 标识
     b[s] = 1;
@@ -194,5 +196,4 @@ int main() {
     printf("%d\n", sum - s);
     return 0;
 }
-
 ```
diff --git a/TangDou/AcWing_TiGao/T3/MinialSpanningTree/1141_Prim.cpp b/TangDou/AcWing_TiGao/T3/MinialSpanningTree/1141_Prim.cpp
index fccbd29..c5b1f01 100644
--- a/TangDou/AcWing_TiGao/T3/MinialSpanningTree/1141_Prim.cpp
+++ b/TangDou/AcWing_TiGao/T3/MinialSpanningTree/1141_Prim.cpp
@@ -16,6 +16,8 @@ int sum;     // 总边长
 int prim(int s) {
     // 由于调用多次prim，所以每次需要清零
     memset(dis, 0x3f, sizeof dis);
+    dis[s] = 0;
+    
     res = 0;
     // 标识
     b[s] = 1;