/in/foo.cc: In function 'int main()':
/in/foo.cc:23:39: warning: format '%lf' expects argument of type 'double*', but argument 2 has type 'int*' [-Wformat=]
         scanf("%lf%lf",&xxx[i],&yyy[i]);
                                       ^
/in/foo.cc:23:39: warning: format '%lf' expects argument of type 'double*', but argument 3 has type 'int*' [-Wformat=]
/in/foo.cc:32:32: warning: format '%d' expects argument of type 'int*', but argument 3 has type 'double*' [-Wformat=]
         scanf("%c%d%d",&c,&l,&r);
                                ^
/in/foo.cc:32:32: warning: format '%d' expects argument of type 'int*', but argument 4 has type 'double*' [-Wformat=]