Outside Context Problem
Plain Sailing

So, now with the framework in place, I could take some time out every day to do a bit of code golf of sorts (I wasn't going for the shortest solution... fastest... maybe.) Great fun, good mental exercise and, frankly a bit of a change from business logic.

I saw how quickly my solutions were executing (see console output below) and set myself a goal of having all solutions for the season execute in under one second, combined.

2021  1.1: 1466                           0ms     Depth scan
2021  1.2: 1491                           1ms     
2021  2.1: 1746616                        0ms     Navigate forward
2021  2.2: 1741971043                     0ms     
2021  3.1: 2743844                        0ms     Power consumption
2021  3.2: 6677951                        0ms     
2021  4.1: 32844                          4ms     Squid bingo
2021  4.2: 4920                           3ms     
2021  5.1: 7297                           17ms    Hydrothermal vents
2021  5.2: 21038                          20ms    
2021  6.1: 391888                         0ms     Lanternfish parthenogenesis
2021  6.2: 1754597645339                  0ms     
2021  7.1: 348664                         0ms     Crab submarines
2021  7.2: 100220525                      0ms     
2021  7.X: Ceci n'est pas une intcode...  0ms     Easter egg (2019 CPU used)
2021  8.1: 294                            0ms     Old school displays
2021  8.2: 973292                         3ms     
2021  9.1: 498                            0ms     Lava level
2021  9.2: 1071000                        4ms     
2021 10.1: 370407                         2ms     Esoteric language parser
2021 10.2: 3249889609                     1ms     
2021 11.1: 1755                           3ms     Flashers
2021 11.2: 212                            6ms     

I really can't heap enough praise on Eric Wastl for the effort put into these puzzles, also the colleague who brought this to my attention, and the other colleagues who participated in this event. I'm an interminable nerd and this is completely my idea of fun.