static void Main(string[] args)
{
Dictionary <string, PriceAndQuantity> productDictionary = new Dictionary <string, PriceAndQuantity>();
string input = Console.ReadLine();
while (input != "buy")
{
PriceAndQuantity newProduct = new PriceAndQuantity();
newProduct.Price = double.Parse(input.Split()[1]);
newProduct.Quantity = int.Parse(input.Split()[2]);
string productName = input.Split()[0];
if (productDictionary.ContainsKey(productName))
{
productDictionary[productName].Price = newProduct.Price;
productDictionary[productName].Quantity += newProduct.Quantity;
}
else
{
productDictionary.Add(productName, newProduct);
}
input = Console.ReadLine();
}
foreach (var product in productDictionary)
{
Console.WriteLine($"{product.Key} -> {product.Value.Price*product.Value.Quantity:f2}");
}
}
static void Main(string[] args)
{
string input = Console.ReadLine();
var products = new Dictionary <string, PriceAndQuantity>();
while (input != "buy")
{
string[] product = input.Split(' ');
string nameOfProduct = product[0];
double priceOfProduct = double.Parse(product[1]);
int quantityOfProduct = int.Parse(product[2]);
if (products.ContainsKey(nameOfProduct))
{
products[nameOfProduct].Quantity += quantityOfProduct;
products[nameOfProduct].Price = priceOfProduct;
}
else
{
PriceAndQuantity priceAndQuantity = new PriceAndQuantity
{
Price = priceOfProduct,
Quantity = quantityOfProduct
};
products.Add(nameOfProduct, priceAndQuantity);
}
input = Console.ReadLine();
}
foreach (var product in products)
{
double totalPrice = product.Value.Price * product.Value.Quantity;
Console.WriteLine($"{product.Key} -> {totalPrice:F2}");
}
}