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C++ code help, I think I’m solving this incorrectly.

In c++ practice lesson 18.2 am I meant to solve the problem by using a double instead of the int it gave me? At that point I have not learned them yet but am told that’s the only way? Any suggestions on other ways to solve I’m kinda stumped and feel like I’m missing something from that lesson and a little bit of insight would go a long way. -thanks in advance!!

21st Apr 2021, 11:14 PM
levi riley
levi riley - avatar
3 Answers
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You have to divide by 100.0, cuz 15/100 is always 0. If you divide integers, result will always get rounded to lower value (100/15=0.15≈0) Or just multiply by 0.15
22nd Apr 2021, 1:38 AM
Michal Doruch
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Show us what you’ve done so far.
21st Apr 2021, 11:32 PM
Jerry Hobby
Jerry Hobby - avatar
+ 1
#include <iostream> using namespace std; int main() { int purchaseAmount = 0; double totalPrice; //your code goes here do{cin>>totalPrice; totalPrice=totalPrice*15/100; cout<<totalPrice<<endl; purchaseAmount++;} while(purchaseAmount<=2); return 0; } This is the answer that i gave and was correct, however, i had to change int totalPrice into double totalPrice. And at this point nothing in the course taught me about a double.
22nd Apr 2021, 12:36 AM
levi riley
levi riley - avatar