/in/foo.cc: In function 'int main()':
/in/foo.cc:11:63: error: expected ')' before numeric constant
   11 |     if((a*c*e-b*d*e-a*d*f-b*c*f)!=0&&(a*c*f-b*d*f+a*d*e+b*c*f)1!=0)cout<<(a*c*e-b*d*e-a*d*f-b*c*f)<<(a*c*f-b*d*f+a*d*e+b*c*f)<<"i"<<endl;
      |       ~                                                       ^
      |                                                               )
/in/foo.cc:12:63: error: expected ')' before numeric constant
   12 |     if((a*c*e-b*d*e-a*d*f-b*c*f)==0&&(a*c*f-b*d*f+a*d*e+b*c*f)1!=0)cout<<(a*c*f-b*d*f+a*d*e+b*c*f)<<"i"<<endl;
      |       ~                                                       ^
      |                                                               )