Beginner Needing Help making change

This is a discussion on Beginner Needing Help making change within the C++ Programming forums, part of the General Programming Boards category; This is my code so far: Code: #include <iostream> using namespace std; int main(){ int cent; int quarter = 25; ...

  1. #1
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    Beginner Needing Help making change

    This is my code so far:

    Code:
    #include <iostream>
    
    
    using namespace std;
    
    
    int main(){
    
    
    int cent;
    int quarter = 25;
    int dime = 10;
    int nickel = 5;
    int penny = 1;
    
    
    cout << "Enter an amount in cents: ";
    cin >> cent;
    cout << "The amount you entered is: " << cent << " cents\n";
    cout << endl;
    
    
    //This is where I am getting lost
    if (cent % quarter)
    cout << "Quarters: " << cent << endl;
    if (cent % dime)
    cout << "Dimes: " << cent << endl;
    if (cent % nickel)
    cout << "Nickels: " << cent << endl;
    if (cent % penny)
    cout << "Pennies: " << cent << endl;
    
    
    
    
    
    
    system("pause");
    return 0;
    }
    I have been having a lot of trouble with this one. I am trying to prompt the user for an amount of change, then determine how many quarters, nickels, dimes, and pennies the entered amount would make. I may have been staring at this for too long the longer I look at this the worse my code becomes. Any help would be greatly appreciated..

  2. #2
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    doh I was wayyyy over thinking this thing

    Code:
    #include <iostream>
    
    
    using namespace std;
    
    
    int main(){
    
    
    int cent;
    int quarter = 25;
    int dime = 10;
    int nickel = 5;
    int penny = 1;
    int solveQ;
    int solveD;
    int solveN;
    int solveP;
    int remainQ;
    int remainD;
    int remainN;
    
    
    cout << "Enter an amount in cents: ";
    cin >> cent;
    cout << endl;
    
    
    cout << "The amount you entered is: " << cent << " cents\n";
    cout << endl;
    
    
    solveQ = cent / quarter;        //Finds # of Quarters
        remainQ = cent % quarter;   //Finds remaining cents
    solveD = remainQ / dime;        //Finds # of Dimes
        remainD = remainQ % dime;   //Finds remaining cents
    solveN = remainD / nickel;      //Finds # of Nickels
        remainN = remainD % nickel; //Finds remaining cents
    solveP = remainD / penny;       //Finds # of Pennies
    
    
    cout << solveQ << " Quarter(s)" << endl;
    cout << solveD << " Dime(s)" << endl;
    cout << solveN << " Nickel(s)" << endl;
    cout << solveP << " Penny(s)\n" << endl;
    
    
    system("pause");
    return 0;
    }
    It's not 100% right but I believe I am on the right track now

  3. #3
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    solveP = remainD / penny; //Finds # of Pennies is the problem / Solved thanx anyway

  4. #4
    Programming Wraith GReaper's Avatar
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    You got the concept wrong. When you try to break something down into smaller parts, you start from the proportionaly largest unit, divide your value by that unit and the quotent is the amount of units needed. The remainer is the one that should be repeatedly checked as the new value, but each time taking into account smaller units until it can't be further broken.

    EDIT: Nice, that's better.
    Devoted my life to programming...

  5. #5
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    Whew my head was not in the right place... but thanx much Reaper

  6. #6
    Registered User whiteflags's Avatar
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    Dividing by one doesn't change the answer.

  7. #7
    C++まいる!Cをこわせ! Elysia's Avatar
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    Does it hurt to ask that you indent your code in the future?
    Quote Originally Posted by Adak View Post
    io.h certainly IS included in some modern compilers. It is no longer part of the standard for C, but it is nevertheless, included in the very latest Pelles C versions.
    Quote Originally Posted by Salem View Post
    You mean it's included as a crutch to help ancient programmers limp along without them having to relearn too much.

    Outside of your DOS world, your header file is meaningless.

  8. #8
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    Here is another way to do it:

    Code:
    #include <iostream>
    
    using namespace std;
    
    typedef struct
    {
        int quarters;
        int dimes;
        int nickels;
        int pennies;
    } change;
    
    change count_change(int amount);
    
    int main()
    {
        int amount;
        change change1;
        cout << "How much money do you have (in pennies)? ";
        cin >> amount;
        cin.ignore();
        change1 = count_change(amount);
        cout << "You have " << change1.quarters << " quarters, " << change1.dimes << " dimes, " << change1.nickels << " nickels, and " << change1.pennies << " pennies.";
    }
    
    change count_change(int amount)
    {
        int quarters, dimes, nickels, pennies;
        change change1;
        quarters = amount / 25;
        amount %= 25;
        dimes = amount / 10;
        amount %= 10;
        nickels = amount / 5;
        amount %= 5;
        pennies = amount;
        change1.quarters = quarters;
        change1.dimes = dimes;
        change1.nickels = nickels;
        change1.pennies = pennies;
        return change1;
    }

  9. #9
    Registered User ferfy's Avatar
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    By any chance are you reading "Practical C++ Programming"? Cuz that's an exercize in chapter 6...... the chapter i just finished

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