foo.cc: In function 'int main()':
foo.cc:25:23: error: expected ')' before 'sum'
   25 |  printf("%d,%.2f", sum sum / 16.0);
      |        ~              ^~~~
      |                       )
foo.cc:25:16: warning: format '%f' expects a matching 'double' argument [-Wformat=]
   25 |  printf("%d,%.2f", sum sum / 16.0);
      |             ~~~^
      |                |
      |                double

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