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  1. //Xinnuo Wang                   CS1A                   chapter 3 , P.147, #18
  2. //
  3. /*******************************************************************************
  4. *
  5. * Caculate the number of slices a pizza
  6. *-------------------------------------------------------------------------------
  7. * This program to calculate the number of slices a pizza of any size 
  8. * can be divided into. 
  9. *
  10. * computation is based on the formula:
  11. * Area = π x r^2
  12. *-------------------------------------------------------------------------------
  13. * INPUT
  14. *    diameter       : The diameter of the pizza in inches
  15. *    radius         : The radius of the pizza in inches
  16. *    area           : The area of the pizza
  17. * OUTPUT
  18. *    numb           : The number of slices a pizza of any size
  19. *
  20. *******************************************************************************/
  21. #include <iostream>
  22. #include <cmath>
  23. using namespace std;
  24.  
  25. int main() {
  26. 	double diameter; //INPUT - The diameter of the pizza in inches
  27. 	double radius;   //INPUT - The radius of the pizza in inches
  28. 	double area;     //INPUT - The area of the pizza
  29. 	double numb;     //OUTPUT - The number of slices a pizza of any size
  30. //
  31. //Input Data
  32.     cout<< "Enter diameter of the pizza in inches" <<endl;
  33.     cin >> diameter;
  34. //
  35. //Compute Radius
  36.     radius = diameter/2;
  37. //
  38. //Compute Area
  39.     area = 3.14156 * pow(radius,2);
  40. //
  41. //Compute the Number of slices
  42.     numb = area/14.125;
  43. //
  44. //Output Result
  45.     cout << "The number of slices is :"<< numb<<endl;
  46. 	return 0;
  47. }
Success #stdin #stdout 0.01s 5292KB
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Enter diameter of the pizza in inches
The number of slices is :8.00681
https://ideone.com/Lz3Udq
language:
C++ (gcc 8.3)
created:
1 day ago
visibility:
public

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