/in/foo.c: In function 'main':
/in/foo.c:10:24: error: 'm\U0000ff1b' undeclared (first use in this function)
   10 |                 n=n%10+m；
      |                        ^~~
/in/foo.c:10:24: note: each undeclared identifier is reported only once for each function it appears in
/in/foo.c:10:27: error: expected ';' before 'x'
   10 |                 n=n%10+m；
      |                           ^
      |                           ;
   11 |                         x=x/10;
      |                         ~  
/in/foo.c:13:12: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   13 |         if(c=m)
      |            ^
/in/foo.c:14:28: error: expected ';' before '\U0000ff1b'
   14 |         printf("x是回文数")；}
      |                            ^~
      |                            ;
/in/foo.c: At top level:
/in/foo.c:15:9: error: expected identifier or '(' before 'else'
   15 |         else
      |         ^~~~
/in/foo.c:19:1: error: expected identifier or '(' before '}' token
   19 | }
      | ^