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  1. //Devin Scheu                                  CS1A                                    Chapter 4, P. 220, #5
  2. //
  3. /**************************************************************
  4. *
  5. * CALCULATE BODY MASS INDEX (BMI)
  6. * ____________________________________________________________
  7. * This program calculates a person's body mass index (BMI)
  8. * based on weight (in pounds) and height (in inches). It then
  9. * determines if the person is underweight, optimal weight, or 
  10. * overweight.
  11. *
  12. * Computation is based on the formula:
  13. * BMI = weight * 703 / (height * height)
  14. * Optimal BMI range: 18.5 to 25
  15. * ____________________________________________________________
  16. * INPUT
  17. * weight : Weight in pounds (as a double)
  18. * height : Height in inches (as a double)
  19. *
  20. * OUTPUT
  21. * message : Indicates whether the person is underweight, optimal, or overweight
  22. *
  23. **************************************************************/
  24.  
  25. #include <iostream>
  26. #include <iomanip>
  27.  
  28. using namespace std;
  29.  
  30. int main () {
  31.  
  32. 	//Variable Declarations
  33. 	double weight;    //INPUT      - Weight in pounds (as a double)
  34. 	double height;    //INPUT      - Height in inches (as a double)
  35. 	double bmi;       //PROCESSING - Body mass index calculated from weight and height
  36. 	string message;   //OUTPUT     - Indicates whether the person is underweight, optimal, or overweight
  37.  
  38. 	//Prompt for Input
  39. 	cout << "Enter your weight in pounds: ";
  40. 	cin >> weight;
  41. 	cout << "\nEnter your height in inches: ";
  42. 	cin >> height;
  43.  
  44. 	//Calculate BMI
  45. 	bmi = weight * 703 / (height * height);
  46.  
  47. 	//Determine Weight Status
  48. 	if (bmi < 18.5) {
  49. 		message = "You are underweight.";
  50. 	} else if (bmi >= 18.5 && bmi <= 25) {
  51. 		message = "You have optimal weight.";
  52. 	} else {
  53. 		message = "You are overweight.";
  54. 	}
  55.  
  56. 	//Output Result
  57. 	cout << fixed << setprecision(2);
  58. 	cout << "\n";
  59. 	cout << left << setw(25) << "Weight:" << right << setw(15) << weight << " lbs" << endl;
  60. 	cout << left << setw(25) << "Height:" << right << setw(15) << height << " in" << endl;
  61. 	cout << left << setw(25) << "BMI:" << right << setw(15) << bmi << endl;
  62. 	cout << left << setw(25) << "Status:" << right << setw(15) << message << endl;
  63.  
  64. } //end of main()
Success #stdin #stdout 0.01s 5316KB
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stdin
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194
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stdout
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Enter your weight in pounds: 
Enter your height in inches: 
Weight:                           194.00 lbs
Height:                            69.00 in
BMI:                               28.65
Status:                  You are overweight.
https://ideone.com/dqk0iz
language:
C++ (gcc 8.3)
created:
18 hours ago
visibility:
public

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