foo.cc: In function 'int main()':
foo.cc:6:32: warning: unused variable 'a0' [-Wunused-variable]
  long long x/*×Ü*/;long long a0,b0,xi,x12=0,x0,x10=1/*·Ö*/;double a1,b1,d1/*СÊý*/,xx; int a2/*¼ÆÊýµ¥Î»*/=0,i/*¶¨Òå´ÎÊý*/=0;
                                ^~
foo.cc:6:35: warning: unused variable 'b0' [-Wunused-variable]
  long long x/*×Ü*/;long long a0,b0,xi,x12=0,x0,x10=1/*·Ö*/;double a1,b1,d1/*СÊý*/,xx; int a2/*¼ÆÊýµ¥Î»*/=0,i/*¶¨Òå´ÎÊý*/=0;
                                   ^~
foo.cc:6:41: warning: unused variable 'x12' [-Wunused-variable]
  long long x/*×Ü*/;long long a0,b0,xi,x12=0,x0,x10=1/*·Ö*/;double a1,b1,d1/*СÊý*/,xx; int a2/*¼ÆÊýµ¥Î»*/=0,i/*¶¨Òå´ÎÊý*/=0;
                                         ^~~
foo.cc:6:47: warning: variable 'x0' set but not used [-Wunused-but-set-variable]
  long long x/*×Ü*/;long long a0,b0,xi,x12=0,x0,x10=1/*·Ö*/;double a1,b1,d1/*СÊý*/,xx; int a2/*¼ÆÊýµ¥Î»*/=0,i/*¶¨Òå´ÎÊý*/=0;
                                               ^~
foo.cc:6:50: warning: unused variable 'x10' [-Wunused-variable]
  long long x/*×Ü*/;long long a0,b0,xi,x12=0,x0,x10=1/*·Ö*/;double a1,b1,d1/*СÊý*/,xx; int a2/*¼ÆÊýµ¥Î»*/=0,i/*¶¨Òå´ÎÊý*/=0;
                                                  ^~~
foo.cc:6:71: warning: unused variable 'a1' [-Wunused-variable]
  long long x/*×Ü*/;long long a0,b0,xi,x12=0,x0,x10=1/*·Ö*/;double a1,b1,d1/*СÊý*/,xx; int a2/*¼ÆÊýµ¥Î»*/=0,i/*¶¨Òå´ÎÊý*/=0;
                                                                       ^~
foo.cc:6:74: warning: unused variable 'b1' [-Wunused-variable]
  long long x/*×Ü*/;long long a0,b0,xi,x12=0,x0,x10=1/*·Ö*/;double a1,b1,d1/*СÊý*/,xx; int a2/*¼ÆÊýµ¥Î»*/=0,i/*¶¨Òå´ÎÊý*/=0;
                                                                          ^~
foo.cc:6:77: warning: unused variable 'd1' [-Wunused-variable]
  long long x/*×Ü*/;long long a0,b0,xi,x12=0,x0,x10=1/*·Ö*/;double a1,b1,d1/*СÊý*/,xx; int a2/*¼ÆÊýµ¥Î»*/=0,i/*¶¨Òå´ÎÊý*/=0;
                                                                             ^~

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