foo.c: In function 'Mul':
foo.c:4:19: error: invalid suffix "；i" on integer constant
    4 |         for(int i=0；i<n;i++)
      |                   ^~~~
foo.c:4:29: error: expected ';' before ')' token
    4 |         for(int i=0；i<n;i++)
      |                             ^
      |                             ;
foo.c: In function 'main':
foo.c:14:17: warning: format '%d' expects argument of type 'int *', but argument 2 has type 'long long int *' [-Wformat=]
   14 |         scanf("%d%d",&x,&n);
      |                ~^    ~~
      |                 |    |
      |                 |    long long int *
      |                 int *
      |                %lld
foo.c:16:19: warning: format '%ld' expects argument of type 'long int', but argument 2 has type 'long long int' [-Wformat=]
   16 |         printf("%ld",y);
      |                 ~~^  ~
      |                   |  |
      |                   |  long long int
      |                   long int
      |                 %lld
foo.c:17:16: error: invalid suffix "；" on integer constant
   17 |         return 0；
      |                ^~~
foo.c:17:19: error: expected ';' before '}' token
   17 |         return 0；
      |                   ^
      |                   ;
   18 | }
      | ~                  

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