Database Challenges

We ran the Accepted Solutions through the basic testing process and a few solutions failed the basic testing. The solutions that failed the basic testing can be classified into two categories.

• Solutions that do not produce the expected output rows
• Solutions that do not produce the expected output columns

Please note that the results that your solutions produce should exactly match with the expected output provided along with the challenge description (when executed against the sample data given in the challenge). Similarly, the output columns of your solutions should be exactly the same as the columns given in the sample output requirement. The evaluation is done by an automated script and if one of these does not match, the solution will be dropped.

Solutions that passed basic testing

Congratulations to the following people whose submissions passed the basic testing!

1. Solution by Adan Bucio
2. Anders Bendix Nielsen
3. Anders Bendix Nielsen (2)
4. Andriy Zabavskyy
5. Bill Zdroik
6. Solution by Brad Schulz
7. Bret Warnick
8. Dave Ballantyne
9. Ennor Tiegael
10. Erhan Hosca
11. Fabien Contaminard
12. Hodin Matthieu
13. Isham Hamin
14. Solution by Jesse Mclain
15. Jim Carter
16. Joe Cipri
17. Joe Jameson (2)
18. Kalyanasundaram N
19. Karin Nooteboom
20. Solution by Leonid Koyfman
21. Solution by Leonid Koyfman (2)
22. Leonid Koyfman (3)
23. Li Ding
24. Maurice Holt
25. Mike Defehr
26. Neeraj Mathur (2)
27. Parth Patel
28. Paul Ward
29. Solution by Randy Derby
30. Solution by Steve Howard
31. Tobias Ortmann
32. Tobias Ortmann (2)

These solutions will be sent to a more detailed Logic Testing where they will be tested against a tricky set of data.