Given the ShoeType structure type-definition.Write a function for the declaration (prototype).

Question

```
struct ShoeType { char style; double price; };
void setSalePrice(ShoeType& Item, double discountRate);
//discountRate =(discounted price)/(regular price)
//Adjusts sale price to reflect the specified discount.
code}

Answer 1

```
void setSalePrice(ShoeType& Item, double discountRate)
{
Item.price = Item.price * discountRate;
}
```

Use of reference parameter causes changes inside the function to be reflected outside.