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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. 		pow(2, 37);
  13. 		System.out.println(cnt);
  14. 	}
  15.  
  16. 	static int cnt = 0;
  17.  
  18.     // calculate a^b
  19.     static int pow(int a, int b){
  20.         if(b==0) return 1;
  21.         if(b%2==0){
  22.             int v = pow(a, b/2);
  23.             cnt += 1;
  24.             return v*v;
  25.         }else{
  26.             int v = pow(a, b/2);
  27.             cnt += 2;
  28.             return v*v*a;        
  29.         }
  30.     }
  31. }
Success #stdin #stdout 0.07s 380160KB
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9
https://ideone.com/oOEZx8
language:
Java (HotSpot 12)
created:
11 years ago
visibility:
public

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