习题3-3 出租车计价（15 分）

#include

int main()
{

    double mile;
    int time;
    double mile_fee,fee;
    int time_fee;

    scanf("%lf%d",&mile,&time);

    if(mile<=3) mile_fee=10;
    else if (mile<=10) mile_fee=10+2*(mile-3);
    else mile_fee=10+14+3*(mile-10);

    time_fee=(time/5)*2;
    fee=time_fee+mile_fee;

    printf("%.f",fee); 

 }