#include <stdio.h>

double feiyong;

double danjia;

double fei(double x,double y)

{

     if (x>=3)

     feiyong=13+(x-3)*y+1;

     else

     feiyong=13+1;

     return 0;

}

double dan(double x)

{

    if(x>=23||x<=5)

    danjia=1.2*2.3;

    else 

    danjia=2.3;

return 0;

}

main()

{

    double juli=12;

    double shangban=9;

    double xiaban=6;

    dan(shangban);

    fei(juli,danjia);

    double feiyongs=feiyong;

dan(xiaban);

    fei(juli,danjia);

double feiyongx=feiyong;

    double zonfeiyong=feiyongs+feiyongx;

    printf("小明每天打车的总费用为：%f。\n",zonfeiyong);

    return 0;

}