Emergency help, my assignment is due in 24hours

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Emergency help, my assignment is due in 24hours

 
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  #1
Mar 20th, 2005
The Acme Software Company sells its "Adding Tutor" software for $109.Quantity discount are given using the following table:
Quantity Discount
10-19 20%
20-49 30%
50-99 40%
100 or more 50%
Write a program that asks for the number of units sold and calculates the total cost of the purchase including discount. Adjust the totalby the sales tax (use 7.75%). Display the total cost, the discount, the sales tax and adjusted amount due. Display a warning and end the program if the number of units sold isnot greater than 0
I have finish but I couldn't calculate and it not work..Can anyone help me please
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Re: Emergency help, my assignment is due in 24hours

 
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Mar 20th, 2005
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Originally Posted by purplefantasy
I have finish but I couldn't calculate and it not work
Show us what you've got done so far, so we know what to tell you to correct.
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Re: Emergency help, my assignment is due in 24hours

 
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  #3
Mar 20th, 2005
This is what I got so far. Plese help out. I don't know how to do it. I really need help.
C++ Syntax (Toggle Plain Text) 
  1. //PREPROCESSOR DIRECTIVE
  2. # include <iostream>   //FOR CIN AND COUT
  3. # include <iomanip>
  4. # include <string>
  5.  
  6. using namespace std;
  7.  
  8. //Main Function
  9.  
  10. int main()
  11.  
  12. {
  13. 	//Define Variables
  14. 	int      Quantity;            //  QUANTITY OF ITEMS
  15.  
  16. 	float    Cost;                //  SALES ITEMS
  17. 	float	 Discount;          //  DISCOUNT MONEY
  18. 	float	 TaxRate;           // SALE TAXES
  19. 	float	 TotalCost;	        // TOTAL AMOUNT FOR EACH ITEM
  20. 	float	 AdjustAmount;      // THE AMOUNT DUE
  21.  
  22.  //DEFINE CONSTANTS
  23. 	const double DiscountRate1= 0.00f;    //Rate CODES
  24. 	const double DiscountRate2= 0.20f;
  25. 	const double DiscountRate3 = 0.30f;
  26. 	const double DiscountRate4 = 0.40f;
  27. 	const double DiscountRate5 = 0.50f;
  28.  
  29. 	cout.setf(ios::fixed);
  30. 	cout.setf(ios::showpoint);
  31. 	cout.precision(2);
  32.  
  33.     cout << "\n\nThe Acme Software Company";  //PROGRAM TITLE
  34. 	cout << "\nby Kristen Ngoc, Nguyen";      //PROGRAM AUTHOR
  35.  
  36. 	//ASK USER FOR THE AMOUNT OF UNITS YOU WANT TO PURCHASE
  37.  
  38.     cout << "\n\nPlease enter the units you want to purchase:";    //INPUT DATA FOR UNITS
  39. 	cin  >> Quantity;
  40.  
  41. 	//TEST IF QUANTITY IS GREATER THAN 0
  42. 	if (Quantity >= 0)
  43. 	{
  44. 		//DETERMINE THE DISCOUNT RATE
  45.  
  46. 	if (Quantity <10 )
  47. 	{
  48.  
  49. 		Cost = Quantity * 109;
  50. 		Discount = Cost * DiscountRate1;
  51. 		TotalCost = Cost - Discount;
  52. 		TaxRate = TotalCost *0.0775f;
  53. 		AdjustAmount = TotalCost + TaxRate;
  54. 	}
  55.  
  56. 	else if (Quantity <20)
  57. 	{
  58.  
  59. 		Cost = Quantity * 109;
  60. 		Discount = Cost * DiscountRate2;
  61. 		TotalCost = Cost - Discount;
  62. 		TaxRate = TotalCost *0.0775f;
  63. 		AdjustAmount = TotalCost + TaxRate;
  64. 	}
  65. 	else if (Quantity <50)
  66. 	{
  67.  
  68. 		Cost = Quantity * 109;
  69. 		Discount = Cost * DiscountRate3;
  70. 		TotalCost = Cost - Discount;
  71. 		TaxRate = TotalCost *0.0775f;
  72. 		AdjustAmount = TotalCost + TaxRate;
  73. 	}
  74. 	else if (Quantity <100)
  75. 	{
  76.  
  77. 		Cost = Quantity * 109;
  78. 		Discount = Cost * DiscountRate4;
  79. 		TotalCost = Cost - Discount;
  80. 		TaxRate = TotalCost *0.0775f;
  81. 		AdjustAmount = TotalCost + TaxRate;
  82. 	}
  83. 	else
  84. 	{
  85.  
  86. 		Cost = Quantity * 109;
  87. 		Discount = Cost * DiscountRate5;
  88. 		TotalCost = Cost - Discount;
  89. 		TaxRate = TotalCost *0.0775f;
  90. 		AdjustAmount = TotalCost + TaxRate;
  91.  
  92. 	}
  93.  
  94.  
  95.  
  96.   //DISPLAY RESULTS
  97.  
  98. 	cout << fixed << showpoint << setw (20);
  99. 	cout <<"\nSales Results\n";
  100. 	cout <<"- - - - - - - - - - \n";
  101. 	cout <<"\n" << setw(20) << "Cost $" << "Cost" << endl;
  102. 	cout <<"\n" << setw(20) << "Discount rate " << "DiscountRate" << endl;
  103. 	cout <<"\n" << setw(20) << "Discount $" << "Discount" << endl;
  104. 	cout <<"\n" << setw(20) << "Total Cost $" << "TotalCost" << endl;
  105. 	cout <<"\n" << setw(20) << "Sales Taxes $" << "TaxRate" << endl;
  106. 	cout <<"\n" << setw(20) << "Adjust Amount $" << "AdjustAmount" << endl;
  107.  
  108. 	}
  109.  
  110. 	else
  111.  
  112. 		cout << "Invalid entry\n";
  113. 	return 0;
  114. }
Last edited by alc6379; Mar 21st, 2005 at 4:05 pm. Reason: added [code] tags
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Re: Emergency help, my assignment is due in 24hours

 
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  #4
Mar 20th, 2005
In all cases remove quotes around bolded section 
cout <<"\n" << setw(20) << "Adjust Amount $" << "AdjustAmount" << endl;
Declare DiscountRate in your application and set its value inside each conditional
C++ Syntax (Toggle Plain Text) 
  1. cout <<"\n" << setw(20) << "Discount rate " << DiscountRate << endl;

As you've gotten it 95% right, I will post a modified version of this app that you can use as a reference. Don't use it as your assignment or your instructor may get you to explain why you did it that way.
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Re: Emergency help, my assignment is due in 24hours

 
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  #5
Mar 20th, 2005
Can you help me make it look right. Because When I did it. It not show the calculation at all. So I think that's not right so we have to use switch or something. Thanks for you help. It due today. It hard when it run.
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Re: Emergency help, my assignment is due in 24hours

 
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  #6
Mar 20th, 2005
Ok as promised here is my modification based on your algorithym
C++ Syntax (Toggle Plain Text) 
  1. # include <iostream>
  2. # include <iomanip>
  3. # include <string>
  4. using namespace std;
  5. int main()
  6. {
  7. int Quantity, Disc;
  8. double Cost, Discount, SalesTax;
  9. cout.setf(ios::fixed);
  10. cout.setf(ios::showpoint);
  11. cout.precision(2);
  12. cout << "\n\nThe Acme Software Company\nby Kristen Ngoc, Nguyen"; //PROGRAM AUTHOR
  13. do
  14. {
  15. cout << "\n\nPlease enter the units you want to purchase: "; //INPUT DATA FOR UNITS
  16. cin >> Quantity;
  17. if (Quantity == 0)
  18. 	break;
  19. Cost = 109.0 * Quantity;
  20. if (Quantity < 10)
  21. 	Disc = 0;
  22. else
  23. 	if (Quantity < 20)
  24. 	 Disc = 20;
  25. 	else
  26. 	 if (Quantity < 50)
  27. 	 Disc = 30;
  28. 	 else
  29. 	 if (Quantity < 100)
  30. 	 Disc = 40;
  31. 	 else
  32. 	 Disc = 50;
  33.  
  34. cout << fixed << showpoint << setw (20);
  35. cout <<"\nSales Results\n";
  36. cout <<"- - - - - - - - - - \n";
  37. cout << setw(20) << "Cost" << setw(25) << Cost << endl; 
  38. Discount = Cost * (double (Disc) / 100.0);
  39. cout << setw(20) << "Less" << setw(25) << Discount << " " << Disc << "%" << endl;
  40. cout << setw(20) << "Total Cost" << setw (25) << Cost - Discount << endl;
  41. SalesTax = (Cost - Discount) * .0775;
  42. cout << setw(20) << "7.75% Sales Tax" << setw (25) << SalesTax << endl;
  43. cout << setw (45) << "_________________" << endl;
  44. cout << setw(20) << "Total" << setw (25) << Cost - Discount + SalesTax << endl;
  45. } while (1);
  46. return 0;
  47. }
Basically all I did with your code is eliminate redundancy. Only have conditionals do what they need to rather than duplicate the same code over and over again.
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Re: Emergency help, my assignment is due in 24hours

 
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  #7
Mar 21st, 2005
Please don't label your thread as Urgent-- it implies that your problem is more important than others. Help is given here on a first-come, first-served basis.

http://www.catb.org/~esr/faqs/smart-...ns.html#urgent
Alex Cavnar, aka alc6379
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