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  1. import java.util.*;
  2. import java.lang.*;
  3. import java.io.*;
  4.  
  5. class Main
  6. {
  7. 	public static void main (String[] args) throws java.lang.Exception
  8. 	{
  9. 		Scanner in = new Scanner(System.in);
  10. 		double n;
  11. 		n=in.nextDouble();
  12. 		double d;
  13. 		System.out.printf("%.5f",(50*(1-(Math.pow(0.25,n))))/(0.75));
  14. 	}
  15. }
Success #stdin #stdout 0.2s 2184192KB
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50.00000
https://ideone.com/EAvVhP
146 Java
language:
Java (HotSpot 12)
created:
5 years ago
visibility:
secret

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