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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6.  
  7. /* Name of the class has to be "Main" only if the class is public. */
  8. class Ideone
  9. {
  10. 	public static void main (String[] args) throws java.lang.Exception
  11. 	{
  12. 		findMinimumSteps(11);
  13. 	}
  14. 	private static void findMinimumSteps(int dest)
  15. 	{
  16. 		if(dest==0)
  17. 		{
  18. 			System.out.println(dest);
  19. 			return;
  20. 		}
  21. 		if(dest<0)
  22. 			dest*=-1;
  23.  
  24. 		int i = (int)Math.ceil((Math.sqrt(1+8*dest)-1)/2);
  25. 		int sum=i*(i+1)/2;
  26. 		if(dest%2==0)
  27. 		{
  28. 			if(i%2==0 && sum%2==1)
  29. 			{
  30. 				System.out.println(i+1);
  31. 			}
  32. 			else if(i%2==1 && sum%2==1)
  33. 			{
  34. 				System.out.println(i+2);
  35. 			}
  36. 			else
  37. 			{
  38. 				System.out.println(i);
  39. 			}
  40. 		}
  41. 		else
  42. 		{
  43. 			if(i%2==0 && sum%2==0)
  44. 			{
  45. 				System.out.println(i+1);
  46. 			}
  47. 			else if(i%2==1 && sum%2==0)
  48. 			{
  49. 				System.out.println(i+2);
  50. 			}
  51. 			else
  52. 			{
  53. 				System.out.println(i);
  54. 			}
  55. 		}
  56.  
  57. 	}
  58. }
Success #stdin #stdout 0.1s 320256KB
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5
https://ideone.com/T0wdHG
language:
Java (HotSpot 12)
created:
9 years ago
visibility:
public

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