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darkash/3.rb

Created December 16, 2020 12:55
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AoC 2020 (day 3)
Raw
3.rb
input = %w[..##.......
#...#...#..
.#....#..#.
..#.#...#.#
.#...##..#.
..#.##.....
.#.#.#....#
.#........#
#.##...#...
#...##....#
.#..#...#.#]
input.select.with_index do |x, idx|
max = x.length
new_s = x * (idx * 3 / max + 1)
new_s[idx * 3] == "#"
end.count
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