/in/foo.cc: In function 'int main()':
/in/foo.cc:8:11: error: invalid types 'int[int]' for array subscript
    8 |     cin>>a[i];
      |           ^
/in/foo.cc:12:16: error: invalid types 'int[int]' for array subscript
   12 |         if(x==a[i])
      |                ^