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  1. //Devin Scheu                                  CS1A                                    Chapter 4, P. 220, #4
  2. //
  3. /**************************************************************
  4. *
  5. * COMPARE AREAS OF TWO RECTANGLES
  6. * ____________________________________________________________
  7. * This program asks for the length and width of two rectangles
  8. * and determines which has the greater area, or if they are 
  9. * equal.
  10. *
  11. * Computation is based on the formulas:
  12. * area1 = length1 * width1
  13. * area2 = length2 * width2
  14. * ____________________________________________________________
  15. * INPUT
  16. * length1 : Length of the first rectangle (as a double)
  17. * width1  : Width of the first rectangle (as a double)
  18. * length2 : Length of the second rectangle (as a double)
  19. * width2  : Width of the second rectangle (as a double)
  20. *
  21. * OUTPUT
  22. * message : Indicates which rectangle has the greater area or if they are equal
  23. *
  24. **************************************************************/
  25.  
  26. #include <iostream>
  27. #include <iomanip>
  28.  
  29. using namespace std;
  30.  
  31. int main () {
  32.  
  33. 	//Variable Declarations
  34. 	double length1;   //INPUT      - Length of the first rectangle (as a double)
  35. 	double width1;    //INPUT      - Width of the first rectangle (as a double)
  36. 	double length2;   //INPUT      - Length of the second rectangle (as a double)
  37. 	double width2;    //INPUT      - Width of the second rectangle (as a double)
  38. 	double area1;     //PROCESSING - Area of the first rectangle
  39. 	double area2;     //PROCESSING - Area of the second rectangle
  40. 	string message;   //OUTPUT     - Indicates which rectangle has the greater area or if they are equal
  41.  
  42. 	//Prompt for Input
  43. 	cout << "Enter the length of the first rectangle: ";
  44. 	cin >> length1;
  45. 	cout << "\nEnter the width of the first rectangle: ";
  46. 	cin >> width1;
  47. 	cout << "\nEnter the length of the second rectangle: ";
  48. 	cin >> length2;
  49. 	cout << "\nEnter the width of the second rectangle: ";
  50. 	cin >> width2;
  51.  
  52. 	//Calculate Areas
  53. 	area1 = length1 * width1;
  54. 	area2 = length2 * width2;
  55.  
  56. 	//Determine Comparison
  57. 	if (area1 > area2) {
  58. 		message = "The first rectangle has the greater area.";
  59. 	} else if (area2 > area1) {
  60. 		message = "The second rectangle has the greater area.";
  61. 	} else {
  62. 		message = "The areas are the same.";
  63. 	}
  64.  
  65. 	//Output Result
  66. 	cout << fixed << setprecision(2);
  67. 	cout << "\n";
  68. 	cout << left << setw(25) << "First Rectangle Length:" << right << setw(15) << length1 << endl;
  69. 	cout << left << setw(25) << "First Rectangle Width:" << right << setw(15) << width1 << endl;
  70. 	cout << left << setw(25) << "Second Rectangle Length:" << right << setw(15) << length2 << endl;
  71. 	cout << left << setw(25) << "Second Rectangle Width:" << right << setw(15) << width2 << endl;
  72. 	cout << left << setw(25) << "First Area:" << right << setw(15) << area1 << endl;
  73. 	cout << left << setw(25) << "Second Area:" << right << setw(15) << area2 << endl;
  74. 	cout << left << setw(25) << "Result:" << right << setw(15) << message << endl;
  75.  
  76. } //end of main()
Success #stdin #stdout 0.01s 5320KB
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stdin
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2
16
4
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stdout
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Enter the length of the first rectangle: 
Enter the width of the first rectangle: 
Enter the length of the second rectangle: 
Enter the width of the second rectangle: 
First Rectangle Length:             2.00
First Rectangle Width:             16.00
Second Rectangle Length:            4.00
Second Rectangle Width:             9.00
First Area:                        32.00
Second Area:                       36.00
Result:                  The second rectangle has the greater area.
https://ideone.com/PQqRK4
language:
C++ (gcc 8.3)
created:
18 hours ago
visibility:
public

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