foo.c: In function 'main':
foo.c:15:10: error: stray '\357' in program
   15 |  return 0；
      |          ^
foo.c:15:11: error: stray '\274' in program
   15 |  return 0；
      |           ^
foo.c:15:12: error: stray '\233' in program
   15 |  return 0；
      |            ^
foo.c:15:10: error: expected ';' before '}' token
   15 |  return 0；
      |          ^
      |          ;
   16 | }
      | ~         
foo.c:11:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
   11 |  scanf("%d",&n);
      |  ^~~~~~~~~~~~~~
foo.c:13:3: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
   13 |   scanf("%d",&a[i]);
      |   ^~~~~~~~~~~~~~~~~

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