在Infytq应用中解决问题时出现问题

Question

问题在于，甚至计算器也应该写出答案，但是在网站上是错误的。

问题陈述

ARS宝石商店向其客户出售各种宝石。

编写一个Python程序，根据宝石清单和购买数量计算客户要支付的账单金额。账单总额超过30000卢比的任何购买都可享受5％的折扣。如果商店中没有客户需要的宝石，请考虑将总账单金额设为-1。

假设客户要求的任何宝石数量始终大于0。

在适用的情况下执行区分大小写的比较。

#List of gems available in the store
gems_list=['Amber', 'Aquamarine', 'Opal', 'Topaz']
#Price of gems available in the store. gems_list and price_list have one-to-one correspondence
price_list=[4392, 1342, 8734, 6421]

#List of gems required by the customer
reqd_gems=['Amber', 'Opal', 'Topaz']
#Quantity of gems required by the customer. reqd_gems and reqd_quantity have one-to-one correspondence
reqd_quantity=[2, 1, 3]
bill_amount=calculate_bill_amount(gems_list, price_list, reqd_gems, reqd_quantity)
print(bill_amount)

我希望输出为36781

这是我到目前为止提出的解决方案：

def calculate_bill_amount(gems_list, price_list, reqd_gems, reqd_quantity):
    bill_amount = 0
    for i in range(0, len(reqd_gems)):
        if (reqd_gems[i] in gems_list) and reqd_quantity[i] > 0:
            for j in range(0, len(gems_list)):
                if gems_list[j] == reqd_gems[i]:
                    price = price_list[j]
                    break
            bill_amount = bill_amount + (price) * reqd_quantity[i]
            bill_amount_amt = bill_amount - (5 / 100) * bill_amount
        else:
            bill_amount = -1
            break
    return bill_amount

Answer 1

我认为将金额与同一颗宝石的价格“匹配”的最佳方法是根据相应的列表创建两个字典。

尝试一下：

def calculate_bill_amount(gems_list, price_list, reqd_gems, reqd_quantity):
    price_dict = {gems_list[i]: price_list[i] for i in range(len(gems_list))}
    reqd_dict = {reqd_gems[i]: reqd_quantity[i] for i in range(len(reqd_gems))}

    try:
        bill = sum(price_dict[gem] * reqd_dict[gem] for gem in reqd_dict)
    except KeyError:
        return -1

    if bill > 30000:
        bill = 0.95*bill
    return bill

#List of gems available in the store
gems_list=['Amber', 'Aquamarine', 'Opal', 'Topaz']
#Price of gems available in the store. gems_list and price_list have one-to-one correspondence
price_list=[4392, 1342, 8734, 6421]

#List of gems required by the customer
reqd_gems=['Amber', 'Opal', 'Topaz']
#Quantity of gems required by the customer. reqd_gems and reqd_quantity have one-to-one correspondence
reqd_quantity=[2, 1, 3]
bill_amount=calculate_bill_amount(gems_list, price_list, reqd_gems, reqd_quantity)
print(bill_amount)

Answer 2

def calculate_bill_amount(gems_list, price_list, reqd_gems,reqd_quantity):
bill_amount=0
#Write your logic here
for i in range (0, len(reqd_gems)):
    if((reqd_gems[i] in gems_list) and reqd_quantity[i]>0):
        for j in range (0, len(gems_list)):
            if(gems_list[j] == reqd_gems[i]):
                price= price_list[j]
                bill_amount = bill_amount+(price*reqd_quantity[i])
                break
            
        else:
            bill_amount = -1
            break
if(bill_amount>30000):
    bill_amount = bill_amount - (5/100*bill_amount)
return bill_amount