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December 9, 2021 11:20
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A solution for Advent of Code 2021 day 6 that comfortably fits in a tweet (matlab)
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| x = sum(load("in.txt")(:) == [0:8])'; | |
| A = diag(ones(1, 8), 1); | |
| A(9, 1) = 1; | |
| A(7, 1) = 1; | |
| format rat | |
| sum(A^80*x) | |
| sum(A^256*x) |
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