foo.cc: In function 'int main()':
foo.cc:27:47: error: invalid operands of types 'double' and 'int' to binary 'operator%'
   27 |                 printf("%lld\n",(f[sum]/2+0.5)%10);
      |                                 ~~~~~~~~~~~~~~^~~
      |                                          |     |
      |                                          |     int
      |                                          double

Found 10 testcases.
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