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  1. // Takes the range of some data and outputs the value of each axis gradation (in terms of big squares on a graph)
  2.  
  3. #include <cstdlib>
  4. #include <iostream>
  5. #include <cmath>
  6.  
  7. int toGraphNum(double x)
  8. {
  9. 	if(x < 1) { return 1;  }
  10. 	if(x < 2) { return 2;  }
  11. 	if(x < 5) { return 5;  }
  12. 	if(x > 5) { return 10; }
  13. }
  14.  
  15. int graphScaler(double largest, double smallest, int squares);
  16. int graphScaler(double difference, int squares);
  17.  
  18. int main()
  19. {
  20. 	double largest;
  21. 	double smallest;
  22. 	int bigSquares;
  23.  
  24. 	std::cout << "Please enter the largest number:";
  25. 	std::cin >> largest;
  26. 	std::cout << "Please enter the smallest number:";
  27. 	std::cin >> smallest;
  28.  
  29. 	double difference = abs(largest - smallest);
  30.  
  31. 	std::cout << "Please enter the number of big squares:";
  32. 	std::cin >> bigSquares;
  33.  
  34. 	int bigSquareVal = graphScaler(difference, bigSquares);
  35.  
  36. 	//IDEOne input newline fix:
  37. 	std::cout << std::endl;
  38.  
  39. 	std::cout << "Each big square is worth: " << bigSquareVal << std::endl;
  40. 	//Utilisation = {plotted data range}/{total axis range = amount per square * count(squares)}
  41. 	std::cout << "Graph utilisation percentage = " << difference / (bigSquareVal * bigSquares) * 100 << std::endl;
  42.  
  43. 	std::cout << "Press enter to continue...";
  44. 	std::cin.get();
  45. 	return 0;
  46. }
  47.  
  48. int graphScaler(double largest, double smallest, int squares)
  49. {
  50. 	graphScaler((double)abs(largest - smallest), squares);
  51. }
  52. int graphScaler(double difference, int squares)
  53. {
  54. 	double nastyGradation = (difference/squares);
  55. 	int    ngOrder		  = pow(10,floor(log10(nastyGradation)));
  56. 	return toGraphNum(nastyGradation/ngOrder) * ngOrder;
  57. }
Success #stdin #stdout 0s 2864KB
comments (?)
stdin 
78
42
9
stdout 
Please enter the largest number:Please enter the smallest number:Please enter the number of big squares:
Each big square is worth: 5
Graph utilisation percentage = 80
Press enter to continue...
https://ideone.com/0HbCDB
language:
C++ 4.3.2 (gcc-4.3.2)
created:
12 years ago
visibility:
secret

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