There is one entry in bookings table from Jan 1 2013 which is way ahead of all the other entries. It messes up 'payback' exercise validation and doesn't really make sense.
The outlier is there to stop incorrect solutions working for certain exercises, so I'm inclined to leave it in for now. Thanks for the contribution though!
There is one entry in bookings table from Jan 1 2013 which is way ahead of all the other entries. It messes up 'payback' exercise validation and doesn't really make sense.