/*

Sample Shopping Cart:

ItemId  Name        Unit Price     Quantity

1       iPhone      1000         2

2       iPad         600         1

3       iWatch       400         1

4       Airpods      150         2

5       Pixel        500         3 

​

The above is a sample shopping cart of an Ecommerce website. You are tasked to create the following functions to server shopping cart functionalities. 

​

1) Write a function that calculates the total value of the cart.

​

2) Ability to apply a 10% off coupon to the whole cart

​

3) Ability to apply 15% off coupon to ONLY ONE of the highest valued item in the cart. 

For example: In the above shopping cart there are two iPhones ordered and the 15% coupon must be applied to only one IPhone.

​

You don’t have to print any values in the console. Only the code to achieve the use cases above. 

You are welcome to any .Net libraries and object oriented concepts.

​

*/

using System;

using System.Collections.Generic;

using System.Linq;

using System.Linq.Expressions;

public class Program

{

}