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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. 	static long power(int b,int i){
  11.     long num;
  12.     if(i==1)
  13.         return b;
  14.     else if(i%2==0){
  15.         num=(long)Math.pow(power(b,i/2),2);
  16.         if(num>=1000000007)
  17.             num%=1000000007;
  18.         return num;
  19.     }
  20.     else{
  21.         num=b*(long)Math.pow(power(b,(i-1)/2),2);
  22.         if(num>=1000000007)
  23.             num%=1000000007;
  24.         return num;
  25.     }
  26. }
  27.  
  28. 	public static void main (String[] args) throws java.lang.Exception
  29. 	{
  30. 		System.out.println(power(2, 999999999));
  31. 		System.out.println(power(2, 1000000000));
  32. 	}
  33. }
Success #stdin #stdout 0.07s 380160KB
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646458006
477022294
https://ideone.com/pAUql9
language:
Java (HotSpot 12)
created:
11 years ago
visibility:
public

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