fix

src/templates.ts

@@ -1,7 +1,7 @@
 const cSource =
-  "#include<stdio.h>\r\n\r\nint main()\r\n{\r\n    \r\n    return 0;\r\n}"
+  "#include <stdio.h>\r\n\r\nint main() {\r\n    \r\n    return 0;\r\n}"
 const cppSource =
-  "#include<iostream>\r\n\r\nusing namespace std;\r\n\r\nint main()\r\n{\r\n    \r\n    return 0;\r\n}"
+  "#include <iostream>\r\n\r\nusing namespace std;\r\n\r\nint main() {\r\n    \r\n    return 0;\r\n}"
 const pythonSource = ""
 const javaSource =
   "public class Main {\r\n    public static void main(String[] args) {\r\n        \r\n    }\r\n}"