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  1. import java.util.*;
  2. import java.lang.*;
  3. import java.io.*;
  4.  
  5. public class Main
  6. {
  7. 	int[] x = new int[1000001];
  8.  
  9. 	public int operations(int n)
  10. 	{
  11. 		x[1] = 0;
  12. 		for (int i = 2; i <= n; i++)
  13. 		{
  14. 			x[i] = x[i-1] + 1;
  15. 			if (i%2 == 0)
  16. 			{
  17. 				x[i] = Math.min(x[i], x[i/2] + 1);
  18. 			}
  19. 			if (i%3 == 0)
  20. 			{
  21. 				x[i] = Math.min(x[i], x[i/3] + 1);
  22. 			}
  23. 		}
  24. 		return x[n];
  25. 	}
  26.  
  27.  
  28. 	public static void main (String[] args)
  29. 	{
  30. 		Scanner in = new Scanner(System.in);
  31. 		Main x = new Main();
  32. 		while (in.hasNextInt())
  33. 		{
  34. 			int n = in.nextInt();
  35. 			System.out.println(x.operations(n));
  36. 		}
  37. 	}
  38. }
Success #stdin #stdout 0.14s 33532KB
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https://ideone.com/v1VvZX
language:
Java (HotSpot 12)
created:
7 years ago
visibility:
secret

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