/in/foo.cc: In function 'void work(int)':
/in/foo.cc:31:15: warning: unused variable 's' [-Wunused-variable]
   31 |     long long s=0; int num=1000000008;
      |               ^
/in/foo.cc:31:24: warning: unused variable 'num' [-Wunused-variable]
   31 |     long long s=0; int num=1000000008;
      |                        ^~~