foo.cc: In function 'int main()':
foo.cc:5:13: error: expected ']' before ';' token
    5 |  int n,a[100;
      |             ^
      |             ]
foo.cc:9:8: error: 'a' was not declared in this scope
    9 |   cin>>a[i];
      |        ^
foo.cc:14:9: error: 'a' was not declared in this scope
   14 |   cout<<a[i]<<" ";
      |         ^

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