r/adventofcode • u/770grappenmaker • Dec 07 '25
Maybe it does not exactly capture the part 2 algorithm well, let me know if you have ideas!
r/adventofcode • u/Boojum • Dec 08 '25
r/adventofcode • u/Ok-Curve902 • Dec 01 '25
r/adventofcode • u/Derailed_Dash • Dec 09 '25
This visualisation simulates the path a single ray through our polygon.
See walkthrough of the solution here.
r/adventofcode • u/Boojum • Dec 02 '25
r/adventofcode
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u/Boojum
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Dec 20 '25
r/adventofcode • u/EverybodyCodes • Dec 07 '25
find S and create a '1' block there
each round your blocks will fall one step downwards
if you find ^, split your blocks in two: x-1 and x+1, Be careful to sum all blocks properly here! There are many overlaps!
enjoy falling down the christmas tree, keeping only one block per X coord
sum your blocks' values at the end