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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. 		System.out.println(recEx(3));
  13. 	}
  14. 	public static String recEx(int n) {
  15.       if (n <= 0)
  16.         return "";
  17.       return recEx(n - 3) + n + recEx(n - 2) + n;
  18. 	}
  19. }
Success #stdin #stdout 0.1s 320320KB
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Standard input is empty
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3113
https://ideone.com/vMY5z5
language:
Java (HotSpot 12)
created:
10 years ago
visibility:
public

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