/in/foo.cc: In function 'int main()':
/in/foo.cc:8:19: warning: unused variable 'shi' [-Wunused-variable]
  for(int i=100,ge,shi,bai,num=1;i<1000;i++)
                   ^~~
/in/foo.cc:8:23: warning: unused variable 'bai' [-Wunused-variable]
  for(int i=100,ge,shi,bai,num=1;i<1000;i++)
                       ^~~