/in/foo.c: In function 'main':
/in/foo.c:8:24: error: invalid suffix "；i" on integer constant
    8 |            for(int i = 1；i<=n;i++);
      |                        ^~~~
/in/foo.c:8:35: error: expected ';' before ')' token
    8 |            for(int i = 1；i<=n;i++);
      |                                   ^
      |                                   ;
/in/foo.c:8:12: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
    8 |            for(int i = 1；i<=n;i++);
      |            ^~~
/in/foo.c:9:12: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
    9 |            { fact*=i;
      |            ^
/in/foo.c:9:20: error: 'i' undeclared (first use in this function)
    9 |            { fact*=i;
      |                    ^
/in/foo.c:9:20: note: each undeclared identifier is reported only once for each function it appears in