/in/foo.c: In function 'judgehuiwenshu':
/in/foo.c:5:13: error: 'num' redeclared as different kind of symbol
    5 |         int num;
      |             ^~~
/in/foo.c:3:24: note: previous definition of 'num' with type 'int'
    3 | int judgehuiwenshu(int num)
      |                    ~~~~^~~
/in/foo.c:7:12: error: expected '(' before 'reversed'
    7 |         if reversed(num !=0)
      |            ^~~~~~~~
      |            (
/in/foo.c:7:12: error: called object 'reversed' is not a function or function pointer
    7 |         if reversed(num !=0)
      |            ^~~~~~~~
/in/foo.c:6:13: note: declared here
    6 |         int reversed=0;
      |             ^~~~~~~~
/in/foo.c:7:29: error: expected ';' before '{' token
    7 |         if reversed(num !=0)
      |                             ^
      |                             ;
    8 |         {
      |         ~                    
/in/foo.c:13:12: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   13 |         if(num=reversed)
      |            ^~~
/in/foo.c: In function 'main':
/in/foo.c:20:1: error: expected declaration specifiers before 'scanf'
   20 | scanf("%d",&x);
      | ^~~~~
/in/foo.c:21:1: error: expected declaration specifiers before 'judgehuiwenshu'
   21 | judgehuiwenshu(x);
      | ^~~~~~~~~~~~~~
/in/foo.c:22:1: error: expected declaration specifiers before 'return'
   22 | return 0;
      | ^~~~~~
/in/foo.c:23:1: error: expected declaration specifiers before '}' token
   23 | }
      | ^
/in/foo.c:19:13: error: declaration for parameter 'x' but no such parameter
   19 |         int x;
      |             ^
/in/foo.c:31: error: expected '{' at end of input
/in/foo.c: In function 'judgehuiwenshu':
/in/foo.c:17:1: warning: control reaches end of non-void function [-Wreturn-type]
   17 | }
      | ^