The Register held a programming competition and I won it gaining a massive 55" 4K TV in the process. Nice!
This entry ran correctly in the fastest time when deployed to IBM's Bluemix Cloud Foundry service.
The solutions to the three programming problems are in the dcq1, dcq2 and dcq3 directories.
All are implemented as Java JAX-RS services (the competition required a single source file for each problem and JAX-RS was an easy way of achieving that).
I also wrote a small Node application to check how quickly the solutions ran (that could also be
deployed to Bluemix). This is in the dcqm directory.