← 返回 stripe 的题目列表固定单价运费计算
类型：online_judge
Given order information and fixed per unit shipping costs, combine them to calculate the total shipping cost. An order includes country, item, and quantity, while the shipping cost has a fixed unit price for each item. Write a program to calculate the total shipping cost for the orders.
Input Format:
The first line contains an integer n, the number of orders.
The next n lines each contain a item_name, country, and quantity representing an order.
The next line contains an integer m, the number of item unit prices.
The next m lines each contain an item_name and its per_unit_cost.
Output Format: Print a decimal number rounded to two decimal places, representing the total shipping cost of all orders.
Sample Input:
2
item1 USA 3
item2 UK 2
2
item1 10.00
item2 5.00
Sample Output:
40.00
Constraints:
1 <= n, m <= 1000
quantity is an integer between 1 and 100
per_unit_cost is a floating point number with up to two decimal places.
Example
Input
2
item1 USA 3
item2 UK 2
2
item1 10.00
item2 5.00