练18.4 计算邮资

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	赵泽华	18ms	8.3 MiB	C++ 17	254 Bytes	2023-6-2 22:25:36
AC	邴诚文	19ms	6.4 MiB	C++ 17	322 Bytes	2023-5-3 16:42:25
AC	单希乐	19ms	6.3 MiB	C++ 17	230 Bytes	2023-6-18 21:31:42
AC	高新亮	19ms	6.3 MiB	C++ 17	257 Bytes	2023-6-16 23:40:38