Thread: Off by a penny problem

  1. #1
    Registered User
    Join Date
    May 2009
    Posts
    39

    Off by a penny problem

    Getting the off by a penny problem...

    Enter an amount in double, for example 11.56: 12.35
    Your amount 12.35 consists of
    12 dollars
    1 quarters
    0 dimes
    1 nickels
    4 pennies

    Press ENTER to continue...

    Where do I properly add my + .00001

    I tried a few places but it did not work...any insight...

    Code:
    #include <iostream>
    using namespace std;
    
    int main()
    {
      // Receive the amount
      cout << "Enter an amount in double, for example 11.56: ";
      double amount;
      cin >> amount;
    
      int remainingAmount = static_cast<int>(amount * 100);
    
      // Find the number of one dollars
      int numberOfOneDollars = remainingAmount / 100;
      remainingAmount = remainingAmount % 100;
    
      // Find the number of quarters in the remaining amount
      int numberOfQuarters = remainingAmount / 25;
      remainingAmount = remainingAmount % 25;
    
      // Find the number of dimes in the remaining amount
      int numberOfDimes = remainingAmount / 10;
      remainingAmount = remainingAmount % 10;
    
      // Find the number of nickels in the remaining amount
      int numberOfNickels = remainingAmount / 5;
      remainingAmount = remainingAmount % 5;
    
      // Find the number of pennies in the remaining amount
      int numberOfPennies = remainingAmount;
    
      // Display results
      cout << "Your amount " << amount << " consists of \n" <<
        "\t" << numberOfOneDollars << " dollars\n" <<
        "\t" << numberOfQuarters << " quarters\n" <<
        "\t" << numberOfDimes << " dimes\n" <<
        "\t" << numberOfNickels << " nickels\n" <<
        "\t" << numberOfPennies << " pennies";
        
    /* Scaffolding code for testing purposes */
    cin.ignore(256, '\n');
    cout << "Press ENTER to continue..." << endl;
    cin.get();
    /* End Scaffolding */
    
      return 0;
    }

  2. #2
    Registered User
    Join Date
    Feb 2009
    Posts
    37
    Before division I think. But the real solution is to keep track of money using an integer to represent pennies or whatever the smallest unit is.

  3. #3
    Banned ಠ_ಠ's Avatar
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    Mar 2009
    Posts
    687
    hmm... it works for me
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