Question

So, I am trying to build this program, where I am suppose to take an input from a user which is a total amount and an amount which is the paid amount. Now, the balance should be broken down into $10, $5, $1, quarters, dimes and nickles. But the below program/code, tells me the total number of quarters, dimes, and nickles in the balance and not the remaining. For example . If the total amount is 5.76 and paid amount is $15 then it should show, zero $10, one $5, 4 $1, zero $.25, 2 $.10 , zero $.05 and four $.01 .

Please tell me whats wrong in the code here?

Answer 1

The easiest fix is to get the number as a float then multiplying it by 100 then saving it as int.

#include <iostream>

using namespace std;

int main ( )
{
    float userNUmber;
    int change, quarters, dimes, nickels, pennies; // declare variables
    cout <<"Enter the amount of money: ";
    cin >> userNUmber; // input the amount of change
    change = userNUmber * 100;
    quarters = change / 25; // calculate the number of quarters
    change = change % 25; // calculate remaining change needed
    dimes = change / 10; // calculate the number of dimes
    change = change % 10; // calculate remaining change needed
    nickels = change / 5; // calculate the number of nickels
    pennies = change % 5; // calculate pennies

    cout << "\nQuarters: " << quarters << endl; // display # of quarters
    cout << " Dimes: " << dimes << endl; // display # of dimes
    cout << " Nickels: " << nickels << endl; // display # of nickels
    cout <<" Pennies: " << pennies << endl; // display # of pennies
    system("Pause");
    return (0);
}

Also to do it in a loop is something like this

#include <iostream>
#include <vector>
#include <string>
using namespace std;


int main ( )
{
    float userNUmber;
    int change, quarters, dimes, nickels, pennies; // declare variables

    cout <<"Enter the amount of money: ";
    cin >> userNUmber; // input the amount of change
    change = userNUmber * 100;

    vector<int> coins(4, 0);
    coins[0] = 25; coins[1] = 10; coins[2] = 5; coins[3] = 1;
    vector<string> coinsName(4, "");
    coinsName[0] = "Quaters"; coinsName[1] = "Dimes"; coinsName[2] = "Nickels"; coinsName[3] = "Pennies";

    for(size_t i = 0; i < coins.size(); ++i)
    {
        int numberOfCoins = change / coins[i]; // calculate the number of quarters
        change = change % coins[i]; // calculate remaining change needed
        cout << coinsName[i] << ": " << numberOfCoins << endl; // display # of quarters
    }
    system("Pause");
    return (0);
}