foo.c: In function 'Mul':
foo.c:5:19: error: invalid suffix "；i" on integer constant
    5 |         for(int i=0；i<n;i++)
      |                   ^~~~
foo.c:5:29: error: expected ';' before ')' token
    5 |         for(int i=0；i<n;i++)
      |                             ^
      |                             ;
foo.c: In function 'main':
foo.c:15:18: warning: format '%ld' expects argument of type 'long int *', but argument 2 has type 'long long int *' [-Wformat=]
   15 |         scanf("%ld%d",&x,&n);
      |                ~~^    ~~
      |                  |    |
      |                  |    long long int *
      |                  long int *
      |                %lld
foo.c:17:19: warning: format '%ld' expects argument of type 'long int', but argument 2 has type 'long long int' [-Wformat=]
   17 |         printf("%ld",y);
      |                 ~~^  ~
      |                   |  |
      |                   |  long long int
      |                   long int
      |                 %lld
foo.c:18:16: error: invalid suffix "；" on integer constant
   18 |         return 0；
      |                ^~~
foo.c:18:19: error: expected ';' before '}' token
   18 |         return 0；
      |                   ^
      |                   ;
   19 | }
      | ~                  

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