10 lines
254 B
Ruby
10 lines
254 B
Ruby
def is_unique(line)
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original = line.split(' ')
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unique = original.uniq
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return original.length == unique.length
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end
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contents = File.open("puzzle_4.txt", "rb").read
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lines = contents.split("\n")
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puts lines.select {|line| is_unique(line)}.length
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