foo.cc: In member function 'bool data::scan()':
foo.cc:12:11: warning: format '%s' expects argument of type 'char*', but argument 3 has type 'char (*)[45]' [-Wformat=]
   12 | scanf("%s%s%s%c%d%a\n",num,&name,&sex,&age,&score,&address);
      |          ~^                ~~~~~
      |           |                |
      |           char*            char (*)[45]
foo.cc:12:15: warning: format '%c' expects argument of type 'char*', but argument 5 has type 'int*' [-Wformat=]
   12 | scanf("%s%s%s%c%d%a\n",num,&name,&sex,&age,&score,&address);
      |              ~^                       ~~~~
      |               |                       |
      |               char*                   int*
      |              %d
foo.cc:12:17: warning: format '%d' expects argument of type 'int*', but argument 6 has type 'char (*)[45]' [-Wformat=]
   12 | scanf("%s%s%s%c%d%a\n",num,&name,&sex,&age,&score,&address);
      |                ~^                          ~~~~~~
      |                 |                          |
      |                 int*                       char (*)[45]
foo.cc:12:19: warning: format '%a' expects argument of type 'float*', but argument 7 has type 'char (*)[45]' [-Wformat=]
   12 | scanf("%s%s%s%c%d%a\n",num,&name,&sex,&age,&score,&address);
      |                  ~^                               ~~~~~~~~
      |                   |                               |
      |                   float*                          char (*)[45]

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