/in/foo.c:1:3: error: invalid preprocessing directive #\U000083b7\U000053d6\U00008f93\U00005165\U00007684\U00005145\U0000503c\U000091d1\U0000989d\U0000ff0c\U00008f6c\U00006362\U00004e3a\U00006574\U00006570\U00007c7b\U0000578b
    1 | # 获取输入的充值金额，转换为整数类型
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/in/foo.c:2:1: warning: data definition has no type or storage class
    2 | recharge_amount = int(input())
      | ^~~~~~~~~~~~~~~
/in/foo.c:2:1: warning: type defaults to 'int' in declaration of 'recharge_amount' [-Wimplicit-int]
/in/foo.c:2:19: error: expected expression before 'int'
    2 | recharge_amount = int(input())
      |                   ^~~
/in/foo.c:4:3: error: invalid preprocessing directive #\U00008ba1\U00007b97\U000083b7\U00008d60\U000091d1\U0000989d\U0000ff1a\U00005148\U00006574\U00009664200\U00005f97\U00005230\U00004efd\U00006570\U0000ff0c\U0000518d\U00004e58\U00004ee5\U00006bcf\U00004efd\U00008d60\U0000793c20\U00005143
    4 | # 计算获赠金额：先整除200得到份数，再乘以每份赠礼20元
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/in/foo.c:7:3: error: invalid preprocessing directive #\U00008f93\U000051fa\U000083b7\U00008d60\U000091d1\U0000989d\U0000ff08\U00006574\U00006570\U0000ff09
    7 | # 输出获赠金额（整数）
      |   ^~~~~~~~~~~~~~~~~~~~