Discount Calculation

Discount Calculation program

Make a program that receives:

Purchased product code;
Quantity purchased of a product;
Following the table, calculate and display in order:
Unit price of the product purchased following table above;
Total price of the note;
Discount amount, following the table 2 and applying it to the total price of the note
final price of the bill after the discount
Table One:

Code Price

1 to 10 $ 10,00

11 to 20 $ 15,00

21 to 30 $ 20,00

31 to 40 $ 30,00
Table Two:

Note total price Discount (%)

Until $ 249,99 5%

Between $ 250,00 and $ 499,99 10%

Above $ 500,00 15%

Execute

Clone main branch from c-cpp-projects.

Access this folder on terminal:

  cd c-cpp-projects/c_exercises/discount_calculation

Run with GCC compiler

With GCC compiler installed run the following commands:

Compile the cpp file:

gcc discount_calculation.cpp -o execute -lm

Run the execute compiled file:
```
./execute
```

Run with Docker

With Docker installed run the following commands:

Build the container and images:
```
docker build -t gcc-docker .
```
Run the container with the built image gcc-docker:latest:
```
docker run -it gcc-docker:latest
```

Code

Code in C.

#include <stdio.h>

int main(void)
{
 int product_code, product_amount;
 float unit_price, total_price,final_price, discount;
 while(product_code < 1 || product_code > 40){
  printf("\nProduct Code (1 to 40):\n");
  scanf("%d", &product_code);
 }
 printf("\nProduct Amount:\n");
 scanf("%d", &product_amount);


 if (product_code >=1 && product_code <=10){
  unit_price = 10.00;
  total_price = product_amount * 10.00;
   if (total_price <= 249.99){
    discount = total_price * 5/100;
    final_price = total_price -  discount;
   }
   else if (total_price >= 250.00 || total_price <= 499.99){
    discount = total_price * 10/100;
    final_price = total_price -  discount;
   }
   else if (total_price >= 500.00){
    discount = total_price * 15/100;
    final_price = total_price -  discount;
   }

 } else if (product_code >=11 && product_code <=20){
  unit_price = 15.00;
  total_price = product_amount * 15.00;
   if (total_price <= 249.99){
    discount = total_price * 5/100;
    final_price = total_price -  discount;
   }
   else if (total_price >= 250.00 && total_price <= 499.99){
    discount = total_price * 10/100;
    final_price = total_price -  discount;
   }
   else if (total_price >= 500.00){
    discount = total_price * 15/100;
    final_price = total_price -  discount;
   }
 } else if (product_code >=  21 && product_code <= 30 ){
  unit_price = 20.00;
  total_price = product_amount * 20.00;
   if (total_price <= 249.99){
    discount = total_price * 5/100;
    final_price = total_price -  discount;
   }
   else if (total_price >= 250.00 && total_price <= 499.99){
    discount = total_price * 10/100;
    final_price = total_price -  discount;
   }
   else if (total_price >= 500.00){
    discount = total_price * 15/100;
    final_price = total_price -  discount;
   }
 } else if (product_code >= 31 && product_code <= 40){
  unit_price = 30.00;
  total_price = product_amount * 30.00;
   if (total_price <= 249.99){
    discount = total_price * 5/100;
    final_price = total_price -  discount;
   }
   else if (total_price >= 250.00 && total_price <= 499.99){
    discount = total_price * 10/100;
    final_price = total_price -  discount;
   }
   else if (total_price >= 500.00){
    discount = total_price * 15/100;
    final_price = total_price -  discount;
   }
 }

 printf("\nUnit Price:\n$%.2f", unit_price);
 printf("\nTotal Price:\n$%.2f", total_price);
 printf("\nDiscount:\n$%.2f", discount);
 printf("\nFinal Price:\n$%.2f\n", final_price);

}

Contributing

Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.

Please make sure to update tests as appropriate.

Note total price	Discount (%)
Until `$ 249,99`	5%
Between `$ 250,00` and `$ 499,99`	10%
Above `$ 500,00`	15%

Code	Price
1 to 10	$ 10,00
11 to 20	$ 15,00
21 to 30	$ 20,00
31 to 40	$ 30,00