Grrl in limbo c++ using if, if else and switchs.

This is a discussion on Grrl in limbo c++ using if, if else and switchs. within the C++ Programming forums, part of the General Programming Boards category; Code: //Design a C++ program that asks the user to enter the number of pages to be faxed? //The algorithm ...

  1. #1
    Registered User
    Join Date
    Mar 2011
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    2

    Unhappy Grrl in limbo c++ using if, if else and switchs.

    Code:
    //Design a C++ program that asks the user to enter the number of pages to be faxed?
    //The algorithm then uses the number of pages to be faxed to the calculate the amount //due.
    
    
    
    #include <iostream>
    
    
    using namespace std;
    
    int main()
    {
    	double billingAmount;
    	double numOfPages;
    	
    
    	cout << "Enter number of pages to faxed: ";
    	cin  >> numOfPages;
    	
    	
    
    	if (numOfPages <= 10)
    		cout << "Billing Amount for less than 10 pages: " << endl;
    		cin >> billingAmount >> 
    		cout << "Bill Amount: " << endl;
    	else (numOfPages > 10)
            cout << "bill amount for more than 10 pages: " << billingAmount << "Bill Amount: " << endl;
    
    		billingAmount = 3.00 + (numOfPages * 0.20);
    		
    	   billingAmount = 3.00 + 10 * 0.20+(numOfPages - 10) * 0.10; 
    	
    	
    	
    	
    	
    	return 0;
    }
    
    
    This is what I have and its probably wrong. This is the information I'm trying to go by.
    numOfPages = # of pages to be faxed
    billingAmount = total charges for the pages faxed.
    numOfPages is less than or equal to 10 the billing amount
    is serivce charges + (numOfPages x 0.20); otherwise,
    billing amount is service charges + 10 X 0.20 +
    (numOfPages - 10) x .10.
    
    Get numOfPages
    calculate billing amount using the formula:
    if (numOfPages is less than or equal to 10)
    billingAmount = 3.00 + (numOfPages X 0.20);
    else if
    billingAmount-3.00+10x0.20+(numOfPage… = 10) x 0.10;

  2. #2
    Gawking at stupidity
    Join Date
    Jul 2004
    Location
    Oregon, USA
    Posts
    3,175
    Code:
    	if (numOfPages <= 10)
    		cout << "Billing Amount for less than 10 pages: " << endl;
    		cin >> billingAmount >> 
    		cout << "Bill Amount: " << endl;
    	else (numOfPages > 10)
            cout << "bill amount for more than 10 pages: " << billingAmount << "Bill Amount: " << endl;
    
    		billingAmount = 3.00 + (numOfPages * 0.20);
    		
    	   billingAmount = 3.00 + 10 * 0.20+(numOfPages - 10) * 0.10;
    You don't need to get the billingAmount from the user. You're just supposed to calculate it based on the number of the pages. Also, you don't need a condition for the else:
    Code:
      if (numOfPages <= 10)
        billingAmount = 3.00 + (numOfPages * 0.20);
      else
        billingAmount = 3.00 + 10 * 0.20+(numOfPages - 10) * 0.10;
    You had all the code there, you just had a whole lot of extra.
    If you understand what you're doing, you're not learning anything.

  3. #3
    Registered User
    Join Date
    Mar 2011
    Posts
    2
    Thanks for the help Itsme86 and it executes the program but it doesn't perform the calculations when I input a number and the program closes.

    Code:
    if (numOfPages <= 10)
    		billingAmount = 3.00 + (numOfPages * 0.20);
    	else 
           billingAmount = 3.00 + 10 * 0.20+(numOfPages - 10) * 0.10; 
    	
    	return 0;
    }
    Thanks for all the help.

  4. #4
    Gawking at stupidity
    Join Date
    Jul 2004
    Location
    Oregon, USA
    Posts
    3,175
    Then print it out before the return statement: cout << "Billing amount: " << billingAmount;
    If you understand what you're doing, you're not learning anything.

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