commit 0bccc035e3c068028de5313420c7f01049cb8747
Author: crazywhalecc <crazywhalecc@163.com>
Date:   Mon Aug 30 15:12:44 2021 +0800

    add binary

diff --git a/a.c b/a.c
new file mode 100644
index 00000000..10b222cc
--- /dev/null
+++ b/a.c
@@ -0,0 +1,2 @@
+#include <stdio.h>
+