/in/foo.cc: In function 'int main()':
/in/foo.cc:44:17: warning: unused variable 'a' [-Wunused-variable]
   44 |         int x,k,a[10000],n=0;
      |                 ^
/in/foo.cc:44:26: warning: unused variable 'n' [-Wunused-variable]
   44 |         int x,k,a[10000],n=0;
      |                          ^