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2021-12-09Added day 8. Part 2 doesn't work.Ian C
2021-12-09Added day 9Ian C
2021-12-09Added day 7Ian C
2021-12-09Changed day 6 to a method hinted at on-line.Ian C
2021-12-09Tried to optimise 6a. Still running too long. Need more patience.Ian C
2021-12-09Added day 6. 6a needs some optimisation, or a lote of memoryian.cowburn
2021-12-09Done day 5.ian.cowburn
2021-12-09Completed part 2 of number 4.ian.cowburn
2021-12-09Initial checkinIan C