这个题，那个大神会，急急急

 #include<iostream>
using namespace std;
int main(){
    short dis,money;
    int time=0,cost=0;
    cin>> dis >>time;
    if(dis<=3 && dis>0)
        money=10;
    else if(dis<=10)
        money=10+(dis-3)*2;
    else if(dis>10)
        money=24+(dis-10)*3;
    else
    {
        cout<<"error!"<<endl;
        return 0;
    }
    money=money+time/5*2;
    cost=(int)(money+0.5);
    cout<<cost<<endl;
}