foo.cc:11:1: error: expected declaration before '}' token
   11 | }
      | ^
foo.cc: In function 'int main()':
foo.cc:5:6: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    5 | scanf("%d",&n);
      | ~~~~~^~~~~~~~~

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