Can someone say what i have done wrongly

Question

#include <iostream>
using namespace std;

int main() {
// your account's balance
auto balance = 2452.4;
// price for each notebook
auto price = 259.99;

// Task: calculate the number of notebooks you can afford and output it.
//Hint: use an integer to store the result.
int notebooks = balance/price;
cout << notebooks <<endl;

//Task: calculate the amount left over on your account after the purchase and output it on a new line.
//Hint: calculate the total price of the purchase, then substract it from the balance.
cout << remainder=balance-(price*notebooks);

}

Answer 1

<remainder> is undefined, you should either define and assign its value then print it ...

auto remainder = balance - ( price * notebooks );
cout << remainder;

Or directly output the calculation result of <balance> subtracted by (<price> * <notebooks>)

cout << ( balance - ( price * notebooks ) );

Answer 2

Oh thnx mate!!really helpful♥️