/in/foo.cc: In function 'int main()':
/in/foo.cc:9:9: warning: iteration 9 invokes undefined behavior [-Waggressive-loop-optimizations]
   if(g[i]<=n)
      ~~~^
/in/foo.cc:8:15: note: within this loop
  for(int i=1;i<=10;i++){
              ~^~~~