#include <stdio.h>

float rule(int t,  float distance);

int main()

{

    float distance = 12;

    int t01 = 9;

    int t02 = 18;

    float xiaoming ;

    xiaoming = rule(t01, distance) + rule(t02,distance );

    printf("小明每天打车花费%f", xiaoming);

    return 0;

}

float rule(int t,  float distance)

{

    float sum = 0;

    float price = 0;

    if ( (t >= 23 && t <=24) || (t >= 0 && t<5 ) )

    {

        price = 4.3;

    }

    if(t >= 5 && t < 23)

    {

        price = 2.3;

    }

    sum = price * distance;

    if(sum<=13)

    {

        sum = 13;

    }

    sum = sum + 1;

    return sum;

}