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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. System.out.println(Arrays.equals(new long[]{55, 89, 1}, productFib(4895)));
  13. }
  14.  
  15. public static long[] productFib(long prod) {
  16. for (int f1 = 0, f2 = 1, p = 1, t; ; t = f2, f2 += f1, f1 = t, p = f1 * f2) {
  17. if (p == prod) return new long[]{f1, f2, 1};
  18. else if (p > prod) return new long[]{f1, f2, 0};
  19. }
  20. }
  21. }
Success #stdin #stdout 0.04s 2184192KB
stdin
Standard input is empty
stdout
true