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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. 		// your code goes here
  13. 		Test t = new Test(2);
  14. 		System.out.println(t.power(5));
  15. 	}
  16. }
  17.  
  18. class Test
  19. {
  20. 	int n;
  21. 	Test(int n)
  22. 	{
  23. 		this.n = n;
  24. 	}
  25. public int power(int p) {
  26.     int x = 0;
  27.  
  28.     if (p == 0) {
  29.         return 1;
  30.     }
  31. 	if (p == 1) {
  32.         return this.n;
  33.     }
  34.     if (p % 2 == 0) {
  35.         x = this.power(p / 2);
  36.         return x * x;
  37.     } 
  38. 	else {
  39.         return this.n * this.power(p - 1);
  40.    }
  41.  
  42.  
  43. }}
Success #stdin #stdout 0.1s 320256KB
comments (?)
stdin 
Standard input is empty
stdout 
32
https://ideone.com/0ghIVe
language:
Java (HotSpot 12)
created:
10 years ago
visibility:
public

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