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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 = in.nextDouble();
  11. 		double length = Math.floor(Math.sqrt(n));
  12. 		double width = Math.ceil(n / length);
  13. 		double k = 2 * n + length + width;
  14. 		System.out.print((int)(k));
  15. 	}
  16. }
Success #stdin #stdout 0.07s 2184192KB
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https://ideone.com/Dook1T
language:
Java (HotSpot 12)
created:
5 years ago
visibility:
public

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