/in/foo.cc: In function 'int Count(int*, int)':
/in/foo.cc:5:13: warning: unused variable 'a' [-Wunused-variable]
    5 |         int a[10] = { 0,1,2,3,4,5,6,7,8,9 };
      |             ^
/in/foo.cc:30:1: warning: control reaches end of non-void function [-Wreturn-type]
   30 | }
      | ^