14 lines
211 B
Crystal
14 lines
211 B
Crystal
require "advent"
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INPUT = input(2020, 6).split("\n\n")
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def part1
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INPUT.sum &.chars.uniq!.count(&.ascii_letter?)
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end
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def part2
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INPUT.sum &.lines.map(&.chars.to_set).intersect.size
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end
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puts part1
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puts part2
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