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  1. import java.util.*;
  2. import java.lang.*;
  3. import java.io.*;
  4.  
  5. class Depo
  6. {
  7. 	public static void main (String[] args) throws java.lang.Exception
  8. 	{
  9. 		double n;
  10. 		double x, p=1;
  11. 		double cs, sc;
  12. 		Scanner in = new Scanner(System.in);
  13. 		x=in.nextDouble();
  14. 		n=in.nextDouble();
  15. 		cs= sc = Math.cos(Math.abs(x));
  16. 		for(int k=1; k<=n; k++){
  17. 			p*= (k / (k + 1)) - cs;
  18. 		    cs*=sc;
  19. 		}
  20. 		System.out.println(p);
  21. 	}
  22. }
Success #stdin #stdout 0.15s 321280KB
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1 4
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0.0021201579171299867
https://ideone.com/IDQEuK
A116ะด(java)
language:
Java (12.0.1)
created:
8 years ago
visibility:
secret

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