What is wrong with my C++ programme? (17.2 practise)

Question

#include <iostream>
using namespace std;

int main()
{
int purchaseAmount = 0;
double totalPrice;
double output= totalPrice*0.15;
do {
cin>>totalPrice;
cout<<output<<endl;
++purchaseAmount;
} while(purchaseAmount<3);

//your code goes here

return 0;
}

Answer 1

double output = totalPrice * 0.15; is not a definition of output that changes automatically every time, totalPrice gets a new value. It is an assignment, which will set output once, calculated from the current value of totalPrice.

That means, you need to calculate output anew each time you read a new value into totalPrice.

Answer 2

Ani Jona 🕊 ah I see thanks :)

Answer 3

You're welcome :)