/in/foo.cc: In function 'int main()':
/in/foo.cc:7:12: warning: unused variable 'ed' [-Wunused-variable]
  long long ed=0,h=1,a=1;
            ^~
/in/foo.cc:7:17: warning: unused variable 'h' [-Wunused-variable]
  long long ed=0,h=1,a=1;
                 ^