#include <stdio.h>

float price(float distence,int come,int back )
{
    float price_come,price_back,price_base;
    price_base=13+(distence-3)*2.3+1;
    
    if(come>=5)
        price_come=price_base;
    else
        price_come=1.2*price_base;
    if(back<23)
        price_back=price_base;
    else
        price_back=1.2*price_base;
        
    return price_come+price_back;
}
    
int main()
{
    printf("小明每天打车的费用为%f",price(12,9,6));
    return 0;
}