BEGINNER discount

[materialisticsociety]

So I dont know what's wrong with my code. I have to do this task for school:
If you are buying more than 5 things, butless than 20 - you get 5% off. If you are buying 10 and more things you get 10% off.
Write a program, which would count how much you need to pay for products. 'n' is for price and 'q' is for quantity.




It runs, but shows the wrong number

  
 
   int q;
    float n;

     cin>>q>>n;
     if(q>5&&q<20){
        n=n*q-((5*n)/100*q);
        cout<<n;
}        else if(q>=20){
            n=n*q-((10*n)/100*q);
            cout<<n;}
        else
            cout<<"no discount";

[cire]

Your math is... well, not close.

What is the formula for total given a price, quantity and discount?

[materialisticsociety]

By proportion 100%-n
5%-x
I find the value of discount for 1 product, by multiplying it by q i get a total value of discount of products

[cire]

And then you subtract it from the price of one product?

[materialisticsociety]

ok, but even with the linen=n*q-((5*n)/100*q); it does not work

[cire]

ok, but even with the linen=n*q-((5*n)/100*q); it does not work

What makes you think it doesn't work?

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// http://ideone.com/t5zqeP include <iostream> int main() { double n = 1.00; int q = 6; n = n*q - ((5 * n) / 100 * q); std::cout << "Expected: 5.7\n"; std::cout << "Actual: " << n; n = 2.50; q = 100; n = n*q - ((10 * n) / 100 * q); std::cout << "Expected: 225\n"; std::cout << "Actual: " << n << '\n'; }

Expected: 5.7 Actual: 5.7 Expected: 225 Actual: 225

[E0p9LyTq]

#include <iostream>

int main()
{
  int numberItems = 0;
  
  std::cout << "# of items? ";
  std::cin >> numberItems;
  
  float totalPrice = 0.0;
  
  std::cout << "\nTotal price? ";
  std::cin >> totalPrice;
   
  if (numberItems >= 10)
  {
     std::cout << "\n10% discount!\n";
     totalPrice *= .9; // 10% discount, 90% of total price
  }
  else if (numberItems > 5)
  {
     std::cout << "\n5% discount!\n";
     totalPrice *= .95; // 5% discount, 95% of total price
  }
  else
  {
     std::cout << "\nNo discount!\n";
  }
  
  std::cout << "You owe " << totalPrice << std::endl;

  return 0;
}