advent of code 2016

1. 01no time for a taxicab
2. 02bathroom security
3. 03squares with three sides
4. 04security through obscurity
5. 05how about a nice game of chess?
6. 06signals and noise
7. 07internet protocol version 7
8. 08two-factor authentication
9. 09explosives in cyberspace
10. 10
11. 11
12. 12
13. 13
14. 14
15. 15
16. 16
17. 17
18. 18
19. 19
20. 20
21. 21
22. 22
23. 23
24. 24
25. 25

9 auto-summarized 16 not done