8. Taking a Vacation / Hey, You Never Know!

def hotel_cost(days):
    return 140*days
    
def plane_ride_cost(city):
    if city == "Charlotte":
        return 183
    elif city =="Tampa":
        return 220
    elif city =="Pittsburgh":
        return 222
    else :
        return 475
        
def rental_car_cost(days):
    cost = 40*days
    if days >= 7 :
        return cost -50
    elif days>=3 :
        return cost -20
    else :
        return cost
        
    
def trip_cost(city,days,spending_money):
    return rental_car_cost(days) + hotel_cost(days) + plane_ride_cost(city)+ spending_money
    

역시나 꽤나 고생했던 파트..