#include <stdio.h>
float Cost(int km,int tim)
{
??? float a=2.3;
??? int b=13;
??? int c=3;
??? int d=1;
??? double money;
???
??? if(km>3)
??? {
??????? if(tim>5||tim<=23)
??????? { money=b+(km-c)*a+d;}
??????? else if(tim<=5||tim>23)
??????? { money=1.2*(b+(km-c)*a+d);}
??????? else(km<3)
??????? { money=b+d;}
??? }
??????? return money;
???
???
}
int main()
{
??? float sum=Cost(12,9)+Cost(12,18);
??? printf("小明的路費為:.2f元\n",sum);
??? getchar();
??? return 0;
}