#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("小明每天打車的總費用為：%f。\n",zonfeiyong);

? ? return 0;

}