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  1. import java.util.*;
  2. import java.lang.*;
  3. import java.io.*;
  4. import java.math.*;
  5.  
  6. class Ideone
  7. {
  8. public static void main (String[] args) throws java.lang.Exception
  9. {
  10. Scanner in = new Scanner(System.in);
  11. double currentNumber = in.nextDouble();
  12. double previousNumber = 0;
  13. double position = 0;
  14. for(; currentNumber >= 0; position++){
  15. previousNumber = currentNumber;
  16. currentNumber = in.nextDouble();
  17. }
  18. double result = position + previousNumber;
  19. System.out.println(result);
  20. }
  21. }
Success #stdin #stdout 0.15s 321344KB
stdin
2.7182 81 28 -90 45 -90
stdout
31.0