diff --git a/2021_code_graph.cpp b/2021_code_graph.cpp
index 7b372ae..5a05803 100644
--- a/2021_code_graph.cpp
+++ b/2021_code_graph.cpp
@@ -42,5 +42,4 @@ int main() {
     int i = IsExistEL(G);
     printf("%d", i);
     return 0;
-}
-// 
\ No newline at end of file
+}
\ No newline at end of file